Merge pull request 'v1.0.0' (#15) from dev into main

Reviewed-on: #15

README.md

@@ -1,2 +1,142 @@
 # QuizBot
 
+Open source Discord bot for quizzes and quest-like events.
+
+## Installation
+
+### Dependencies
+
+- [Python 3.11+](https://www.python.org)
+- [MongoDB](https://www.mongodb.com)
+- [Redis](https://redis.io)/[Valkey](https://valkey.io) or [Memcached](https://memcached.org) (used for caching,
+  optional)
+- [Git](https://git-scm.com) (only if installing from source)
+
+### Installation from release
+
+1. Download the release archive from [Releases](https://git.end-play.xyz/profitroll/QuizBot/releases)
+2. Unpack the archive to a directory of your choice
+3. Go to the project's directory
+4. Create a virtual environment: `python3 -m venv .venv`
+5. Activate the virtual environment:
+    - Linux: `source .venv/bin/activate`
+    - Windows (cmd): `.venv/bin/activate.bat`
+    - Windows (PowerShell): `.venv/bin/activate.ps1`
+6. Install requirements: `pip install -r requirements.txt`
+7. Copy example config to a real file: `cp config_example.json config.json`
+8. Configure the bot (see [Configuration](#configuration))
+9. Start the bot: `python main.py`
+10. The bot can be stopped by a keyboard interrupt (`Ctrl+C`) and a virtual environment can be deactivated using
+    `deactivate`
+
+### Installation from source
+
+1. Clone the repository: `git clone https://git.end-play.xyz/profitroll/QuizBot.git`
+2. Go to the project's directory: `cd QuizBot`
+3. Continue from step 4 of [Installation from release](#installation-from-release)
+
+## Configuration
+
+```json
+{
+    // Bot's default locale. Based on file name from locale/
+    "locale": "en-US",
+    // Debug mode setting
+    "debug": false,
+    // Bot's config
+    "bot": {
+        // Discord ID(s) of bot's owner(s)
+        "owners": [
+            0
+        ],
+        // Discord ID(s) of the debug guild(s)
+        "debug_guilds": [
+            0
+        ],
+        // Bot's token
+        "bot_token": "",
+        // Bot's timezone
+        "timezone": "UTC",
+        // Bot's status activity
+        "status": {
+            // Whether activity is enabled
+            "enabled": true,
+            // Type of the activity. Can be: "playing", "watching", "listening", "streaming", "competing" or "custom"
+            "activity_type": "playing",
+            // Text of the activity
+            "activity_text": "The Game Of Life"
+        }
+    },
+    // Database connection
+    "database": {
+        // User name for database connection. null if without auth
+        "user": null,
+        // User password for database connection. null if without auth
+        "password": null,
+        // Database host
+        "host": "127.0.0.1",
+        // Database port
+        "port": 27017,
+        // Database name
+        "name": "quiz_bot"
+    },
+    // Cache connection
+    "cache": {
+        // Type of caching engine. Can be: "memcached", "redis" or null
+        "type": null,
+        // Memcached connection. Only used if cache type is "memcached"
+        "memcached": {
+            // Memcached URI
+            "uri": "127.0.0.1:11211"
+        },
+        // Redis connection. Only used if cache type is "redis"
+        "redis": {
+            // Redis URI
+            "uri": "redis://127.0.0.1:6379/0"
+        }
+    },
+    // Emojis used by guilds that prefer emoji messages
+    "emojis": {
+        // Markdown of a Discord emoji to be used for wrong guesses
+        "guess_wrong": null
+    }
+}
+```
+
+## Upgrading
+
+### Upgrading from release
+
+Installing over the older version is not supported. Fresh installation is necessary to prevent data corruption.
+
+1. Make a backup of the project's directory. Some of the old files will be reused
+2. Follow the [Installation from release](#installation-from-release) from the beginning and stop before 7th step
+3. Copy file `config.json` and directory `data` from the backup you made into the new installation's directory
+4. While still in the virtual environment, migrate the database: `python main.py --migrate`
+
+After these steps are performed, the bot is ready to be started and used.
+
+### Upgrading from source
+
+1. Make a backup of the project's directory
+2. Go to the project's directory
+3. Update the project: `git pull`
+4. Activate the virtual environment:
+    - Linux: `source .venv/bin/activate`
+    - Windows (cmd): `.venv/bin/activate.bat`
+    - Windows (PowerShell): `.venv/bin/activate.ps1`
+5. Migrate the database: `python main.py --migrate`
+
+After these steps are performed, the bot is ready to be started and used.
+
+## Usage
+
+1. Invite the bot to your server with permissions `137707834448` and `applications.commands` scope.  
+   You can also use the following URL template to invite your bot after replacing `CLIENT_ID` with you bot's client
+   ID:  
+   `https://discord.com/oauth2/authorize?client_id=CLIENT_ID&permissions=137707834448&integration_type=0&scope=applications.commands+bot`
+2. Go to "Server Settings > Integrations > QuizBot" and disable access to admin commands for you default role.  
+   Only admins should have access to following commands: `/config`, `/event`, `/stage` and `/user`.  
+   Allowing access to `/status` is not recommended, however won't do any harm if done so.
+3. Configure bot for usage on your server using `/config set` providing all the necessary arguments.  
+   Timezones are compatible with daylight saving time (e.g. `CET` will be interpreted as `CEST` during daylight saving).

classes/abstract/__init__.py

@@ -0,0 +1 @@
+from .cacheable import Cacheable

classes/abstract/cacheable.py

@@ -0,0 +1,81 @@
+from abc import ABC, abstractmethod
+from typing import Any, ClassVar, Dict, Optional
+
+from libbot.cache.classes import Cache
+from pymongo.asynchronous.collection import AsyncCollection
+
+
+class Cacheable(ABC):
+    """Abstract class for cacheable"""
+
+    __short_name__: str
+    __collection__: ClassVar[AsyncCollection]
+
+    @classmethod
+    @abstractmethod
+    async def from_id(cls, *args: Any, cache: Optional[Cache] = None, **kwargs: Any) -> Any:
+        pass
+
+    @abstractmethod
+    async def _set(self, cache: Optional[Cache] = None, **kwargs: Any) -> None:
+        pass
+
+    @abstractmethod
+    async def _remove(self, *args: str, cache: Optional[Cache] = None) -> None:
+        pass
+
+    @abstractmethod
+    def _get_cache_key(self) -> str:
+        pass
+
+    @abstractmethod
+    def _update_cache(self, cache: Optional[Cache] = None) -> None:
+        pass
+
+    @abstractmethod
+    def _delete_cache(self, cache: Optional[Cache] = None) -> None:
+        pass
+
+    @staticmethod
+    @abstractmethod
+    def _entry_to_cache(db_entry: Dict[str, Any]) -> Dict[str, Any]:
+        pass
+
+    @staticmethod
+    @abstractmethod
+    def _entry_from_cache(cache_entry: Dict[str, Any]) -> Dict[str, Any]:
+        pass
+
+    @abstractmethod
+    def to_dict(self, json_compatible: bool = False) -> Dict[str, Any]:
+        pass
+
+    @staticmethod
+    @abstractmethod
+    def get_defaults(**kwargs: Any) -> Dict[str, Any]:
+        pass
+
+    @staticmethod
+    @abstractmethod
+    def get_default_value(key: str) -> Any:
+        pass
+
+    @abstractmethod
+    async def update(
+        self,
+        cache: Optional[Cache] = None,
+        **kwargs: Any,
+    ) -> None:
+        pass
+
+    @abstractmethod
+    async def reset(
+        self,
+        *args: str,
+        cache: Optional[Cache] = None,
+    ) -> None:
+        pass
+
+    @abstractmethod
+    async def purge(self, cache: Optional[Cache] = None) -> None:
+        pass

classes/base/base_cacheable.py

@@ -0,0 +1,110 @@
+from abc import ABC
+from logging import Logger
+from typing import Any, Dict, Optional
+
+from bson import ObjectId
+from libbot.cache.classes import Cache
+
+from classes.abstract import Cacheable
+from modules.utils import get_logger
+
+logger: Logger = get_logger(__name__)
+
+
+class BaseCacheable(Cacheable, ABC):
+    """Base implementation of Cacheable used by all cachable classes."""
+
+    _id: ObjectId
+
+    async def _set(self, cache: Optional[Cache] = None, **kwargs: Any) -> None:
+        for key, value in kwargs.items():
+            if not hasattr(self, key):
+                raise AttributeError()
+
+            setattr(self, key, value)
+
+        await self.__collection__.update_one({"_id": self._id}, {"$set": kwargs})
+
+        self._update_cache(cache)
+
+        logger.info("Set attributes of %s to %s", self._id, kwargs)
+
+    async def _remove(self, *args: str, cache: Optional[Cache] = None) -> None:
+        attributes: Dict[str, Any] = {}
+
+        for key in args:
+            if not hasattr(self, key):
+                raise AttributeError()
+
+            default_value: Any = self.get_default_value(key)
+
+            setattr(self, key, default_value)
+
+            attributes[key] = default_value
+
+        await self.__collection__.update_one({"_id": self._id}, {"$set": attributes})
+
+        self._update_cache(cache)
+
+        logger.info("Reset attributes %s of %s to default values", args, self._id)
+
+    def _update_cache(self, cache: Optional[Cache] = None) -> None:
+        if cache is None:
+            return
+
+        object_dict: Dict[str, Any] = self.to_dict(json_compatible=True)
+
+        if object_dict is not None:
+            cache.set_json(self._get_cache_key(), object_dict)
+        else:
+            self._delete_cache(cache)
+
+    def _delete_cache(self, cache: Optional[Cache] = None) -> None:
+        if cache is None:
+            return
+
+        cache.delete(self._get_cache_key())
+
+    async def update(
+        self,
+        cache: Optional[Cache] = None,
+        **kwargs: Any,
+    ) -> None:
+        """Update attribute(s) on the object and save the updated entry into the database.
+
+        Args:
+            cache (:obj:`Cache`, optional): Cache engine that will be used to update the cache.
+            **kwargs (Any): Mapping of attributes in format `attribute_name=attribute_value` to update.
+
+        Raises:
+            AttributeError: Provided attribute does not exist in the class.
+        """
+        await self._set(cache=cache, **kwargs)
+
+    async def reset(
+        self,
+        *args: str,
+        cache: Optional[Cache] = None,
+    ) -> None:
+        """Remove attribute(s) on the object, replace them with a default value and save the updated entry into the database.
+
+        Args:
+            *args (str): List of attributes to remove.
+            cache (:obj:`Cache`, optional): Cache engine that will be used to update the cache.
+
+        Raises:
+            AttributeError: Provided attribute does not exist in the class.
+        """
+        await self._remove(*args, cache=cache)
+
+    async def purge(self, cache: Optional[Cache] = None) -> None:
+        """Completely remove object data from database. Currently only removes the record from a respective collection.
+
+        Args:
+            cache (:obj:`Cache`, optional): Cache engine that will be used to update the cache.
+        """
+        await self.__collection__.delete_one({"_id": self._id})
+
+        self._delete_cache(cache)
+
+        logger.info("Purged %s from the database", self._id)

classes/errors/__init__.py

@@ -1,2 +1,14 @@
+from .discord import (
+    DiscordCategoryNotFoundError,
+    DiscordChannelNotFoundError,
+    DiscordGuildMemberNotFoundError,
+)
+from .pycord_event import EventNotFoundError
+from .pycord_event_stage import EventStageMissingSequenceError, EventStageNotFoundError
 from .pycord_guild import GuildNotFoundError
-from .pycord_user import UserNotFoundError
+from .pycord_user import (
+    UserAlreadyCompletedEventError,
+    UserAlreadyRegisteredForEventError,
+    UserNotFoundError,
+    UserNotRegisteredForEventError,
+)

classes/errors/discord.py

@@ -0,0 +1,32 @@
+class DiscordGuildMemberNotFoundError(Exception):
+    """Member was not found in a discord guild"""
+
+    def __init__(self, user_id: int, guild_id: int) -> None:
+        self.user_id: int = user_id
+        self.guild_id: int = guild_id
+
+        super().__init__(f"Member with id {self.user_id} was not found in guild with id {self.guild_id}")
+
+
+class DiscordCategoryNotFoundError(Exception):
+    """Category was not found in a discord guild"""
+
+    def __init__(self, category_id: int, guild_id: int) -> None:
+        self.category_id: int = category_id
+        self.guild_id: int = guild_id
+
+        super().__init__(
+            f"Category with id {self.category_id} was not found in guild with id {self.guild_id}"
+        )
+
+
+class DiscordChannelNotFoundError(Exception):
+    """Channel was not found in a discord guild"""
+
+    def __init__(self, channel_id: int, guild_id: int) -> None:
+        self.channel_id: int = channel_id
+        self.guild_id: int = guild_id
+
+        super().__init__(
+            f"Channel with id {self.channel_id} was not found in guild with id {self.guild_id}"
+        )

classes/errors/pycord_event.py

@@ -0,0 +1,26 @@
+from typing import Optional
+
+from bson import ObjectId
+
+
+class EventNotFoundError(Exception):
+    """PycordEvent could not find event with such an ID in the database"""
+
+    def __init__(
+        self,
+        event_id: Optional[str | ObjectId] = None,
+        event_name: Optional[str] = None,
+        guild_id: Optional[int] = None,
+    ) -> None:
+        self.event_id: str | ObjectId | None = event_id
+        self.event_name: str | None = event_name
+        self.guild_id: int | None = guild_id
+
+        if self.event_id is None and self.event_name is None:
+            raise AttributeError("Either event id or name must be provided")
+
+        super().__init__(
+            f"Event with id {self.event_id} was not found"
+            if event_id is not None
+            else f"Event with name {self.event_name} was not found for the guild {self.guild_id}"
+        )

classes/errors/pycord_event_stage.py

@@ -0,0 +1,17 @@
+from bson import ObjectId
+
+
+class EventStageNotFoundError(Exception):
+    """PycordEventStage could not find event with such an ID in the database"""
+
+    def __init__(self, stage_id: str | ObjectId) -> None:
+        self.stage_id: str | ObjectId = stage_id
+
+        super().__init__(f"Stage with id {self.stage_id} was not found")
+
+
+class EventStageMissingSequenceError(Exception):
+    """No sequence is provided for the event stage"""
+
+    def __init__(self) -> None:
+        super().__init__("Stage does not have a defined sequence")

classes/errors/pycord_guild.py

@@ -2,6 +2,6 @@ class GuildNotFoundError(Exception):
     """PycordGuild could not find guild with such an ID in the database"""
 
     def __init__(self, guild_id: int) -> None:
-        self.guild_id = guild_id
+        self.guild_id: int = guild_id
 
         super().__init__(f"Guild with id {self.guild_id} was not found")

classes/errors/pycord_user.py

@@ -1,3 +1,6 @@
+from bson import ObjectId
+
+
 class UserNotFoundError(Exception):
     """PycordUser could not find user with such an ID in the database"""
 
@@ -6,3 +9,33 @@ class UserNotFoundError(Exception):
         self.guild_id: int = guild_id
 
         super().__init__(f"User with id {self.user_id} was not found in guild {self.guild_id}")
+
+
+class UserAlreadyRegisteredForEventError(Exception):
+    """PycordUser is already registered for the provided event"""
+
+    def __init__(self, user_id: int, event_id: str | ObjectId) -> None:
+        self.user_id: int = user_id
+        self.event_id: str | ObjectId = event_id
+
+        super().__init__(f"User with id {self.user_id} is already registered for the event {self.event_id}")
+
+
+class UserNotRegisteredForEventError(Exception):
+    """PycordUser is not registered for the provided event"""
+
+    def __init__(self, user_id: int, event_id: str | ObjectId) -> None:
+        self.user_id: int = user_id
+        self.event_id: str | ObjectId = event_id
+
+        super().__init__(f"User with id {self.user_id} is not registered for the event {self.event_id}")
+
+
+class UserAlreadyCompletedEventError(Exception):
+    """PycordUser already completed the provided event"""
+
+    def __init__(self, user_id: int, event_id: str | ObjectId) -> None:
+        self.user_id: int = user_id
+        self.event_id: str | ObjectId = event_id
+
+        super().__init__(f"User with id {self.user_id} already completed the event {self.event_id}")

classes/pycord_bot.py

@@ -1,23 +1,35 @@
 from datetime import datetime
 from logging import Logger
 from pathlib import Path
-from typing import Any, Dict, List, override
+from typing import Any, Dict, List, Optional
 from zoneinfo import ZoneInfo
 
 from bson import ObjectId
+from bson.errors import InvalidId
 from discord import Attachment, File, Guild, TextChannel, User
 from libbot.cache.classes import CacheMemcached, CacheRedis
 from libbot.cache.manager import create_cache_client
 from libbot.pycord.classes import PycordBot as LibPycordBot
+from typing_extensions import override
 
 from classes import PycordEvent, PycordEventStage, PycordGuild, PycordUser
-from modules.database import col_events, col_users
+from classes.errors import (
+    DiscordGuildMemberNotFoundError,
+    EventNotFoundError,
+    EventStageMissingSequenceError,
+    EventStageNotFoundError,
+    GuildNotFoundError,
+)
+from modules.database import _update_database_indexes, col_events, col_users
 from modules.utils import get_logger
 
 logger: Logger = get_logger(__name__)
 
 
 class PycordBot(LibPycordBot):
+    __version__ = "1.0.0"
+
+    started: datetime
     cache: CacheMemcached | CacheRedis | None = None
 
     def __init__(self, *args, **kwargs) -> None:
@@ -46,6 +58,10 @@ class PycordBot(LibPycordBot):
     @override
     async def start(self, *args: Any, **kwargs: Any) -> None:
         await self._schedule_tasks()
+        await _update_database_indexes()
+
+        self.started = datetime.now(tz=ZoneInfo("UTC"))
+
         await super().start(*args, **kwargs)
 
     @override
@@ -53,7 +69,9 @@ class PycordBot(LibPycordBot):
         await super().close(**kwargs)
 
     async def _schedule_tasks(self) -> None:
-        self.scheduler.add_job(self._execute_event_controller, trigger="cron", minute="*/1", id="event_controller")
+        self.scheduler.add_job(
+            self._execute_event_controller, trigger="cron", minute="*/1", id="event_controller"
+        )
 
     async def _execute_event_controller(self) -> None:
         await self._process_events_start()
@@ -62,18 +80,36 @@ class PycordBot(LibPycordBot):
     async def _process_events_start(self) -> None:
         # Get events to start
         events: List[PycordEvent] = await self._get_events(
-            {"starts": datetime.now(tz=ZoneInfo("UTC")).replace(second=0, microsecond=0)}
+            {
+                "starts": datetime.now(tz=ZoneInfo("UTC")).replace(second=0, microsecond=0),
+                "is_cancelled": False,
+                "ended": None,
+            }
         )
 
         # Process each event
         for event in events:
-            if len(event.stage_ids) == 0:
-                # TODO Make a nice message for management
-                logger.error("Could not start the event %s: no event stages are defined.", event._id)
+            guild: Guild = self.get_guild(event.guild_id)
+
+            try:
+                pycord_guild: PycordGuild = await self.find_guild(guild)
+            except (InvalidId, GuildNotFoundError) as exc:
+                logger.error("Could not find guild %s (%s) due to: %s.", guild, guild.id, exc_info=exc)
+                continue
+
+            if len(event.stage_ids) == 0:
+                logger.error("Could not start the event %s: no event stages are defined.", event._id)
+
+                await self.notify_admins(
+                    guild,
+                    pycord_guild,
+                    self._("admin_event_no_stages_defined", "messages").format(event_name=event.name),
+                )
+
+                await event.cancel(self.cache)
+
                 continue
 
-            guild: Guild = self.get_guild(event.guild_id)
-            pycord_guild: PycordGuild = await self.find_guild(guild)
             first_stage: PycordEventStage = await self.find_event_stage(event.stage_ids[0])
 
             # Get list of participants
@@ -83,10 +119,49 @@ class PycordBot(LibPycordBot):
                 await user._set(self.cache, current_event_id=event._id, current_stage_id=first_stage._id)
 
                 # Create a channel for each participant
-                await user.setup_event_channel(self, guild, pycord_guild, event, cache=self.cache)
+                try:
+                    user_channel: TextChannel | None = await user.setup_event_channel(
+                        self, guild, pycord_guild, event, cache=self.cache
+                    )
+                except DiscordGuildMemberNotFoundError:
+                    logger.error(
+                        "Could not create and configure event channel for user %s in %s (event %s): user not found in the guild",
+                        user.id,
+                        guild.id,
+                        event._id,
+                    )
 
-                # Send a notification about event start
-                user_channel: TextChannel = guild.get_channel(user.event_channels[str(event._id)])
+                    await self.notify_admins(
+                        guild,
+                        pycord_guild,
+                        self._("admin_channel_creation_failed_no_user", "messages").format(
+                            user_id=user.id, event_name=event.name
+                        ),
+                    )
+
+                    continue
+
+                if user_channel is None:
+                    logger.error(
+                        "Event channel was not created for user %s from guild %s and event %s after registration.",
+                        user.id,
+                        guild.id,
+                        event._id,
+                    )
+
+                    discord_user: User = self.get_user(user.id)
+
+                    await self.notify_admins(
+                        guild,
+                        pycord_guild,
+                        self._("admin_channel_creation_failed", "messages").format(
+                            display_name=discord_user.display_name,
+                            mention=discord_user.mention,
+                            event_name=event.name,
+                        ),
+                    )
+
+                    continue
 
                 thumbnail: File | None = (
                     None
@@ -94,62 +169,146 @@ class PycordBot(LibPycordBot):
                     else File(Path(f"data/{event.thumbnail['id']}"), event.thumbnail["filename"])
                 )
 
-                # TODO Make a nice message
-                # TODO Also send a thumbnail, event info and short explanation on how to play
                 await user_channel.send(
-                    f"Event **{event.name}** is starting!\n\nUse slash command `/guess` to suggest your answers to each event stage.",
+                    self._("event_is_starting", "messages").format(event_name=event.name),
                     file=thumbnail,
                 )
 
                 first_stage_files: List[File] | None = first_stage.get_media_files()
 
-                await user_channel.send(f"First stage...\n\n{first_stage.question}", files=first_stage_files)
+                question_chunks: List[str] = first_stage.get_question_chunked(2000)
+                question_chunks_length: int = len(question_chunks)
+
+                for index, chunk in enumerate(question_chunks):
+                    await user_channel.send(
+                        chunk, files=None if index != question_chunks_length - 1 else first_stage_files
+                    )
 
-            # TODO Make a nice message
             await self.notify_admins(
                 guild,
                 pycord_guild,
-                f"Event **{event.name}** has started! Users have gotten their channels and can already start submitting their answers.",
+                self._("admin_event_started", "messages").format(event_name=event.name),
+            )
+
+            await self.notify_users(
+                guild,
+                pycord_guild,
+                self._("event_started", "messages").format(event_name=event.name),
             )
 
     async def _process_events_end(self) -> None:
         # Get events to end
         events: List[PycordEvent] = await self._get_events(
-            {"ends": datetime.now(tz=ZoneInfo("UTC")).replace(second=0, microsecond=0)}
+            {
+                "ends": datetime.now(tz=ZoneInfo("UTC")).replace(second=0, microsecond=0),
+                "is_cancelled": False,
+                "ended": None,
+            }
         )
 
         # Process each event
         for event in events:
             guild: Guild = self.get_guild(event.guild_id)
-            pycord_guild: PycordGuild = await self.find_guild(guild)
-            stages: List[PycordEventStage] = await self.get_event_stages(event)
 
-            # TODO Make a nice message
+            try:
+                pycord_guild: PycordGuild = await self.find_guild(guild)
+            except (InvalidId, GuildNotFoundError) as exc:
+                logger.error("Could not find guild %s (%s) due to: %s.", guild, guild.id, exc_info=exc)
+                continue
+
+            try:
+                stages: List[PycordEventStage] = await self.get_event_stages(event)
+            except (InvalidId, EventNotFoundError, EventStageNotFoundError) as exc:
+                logger.error(
+                    "Could not event stages of the event %s (%s) due to: %s.",
+                    event,
+                    event._id,
+                    exc_info=exc,
+                )
+                continue
+
             stages_string: str = "\n\n".join(
-                f"**Stage {stage.sequence+1}**\nQuestion: {stage.question}\nAnswer: ||{stage.answer}||"
+                self._("stage_entry", "messages").format(sequence=stage.sequence + 1, answer=stage.answer)
                 for stage in stages
             )
 
             # Get list of participants
             users: List[PycordUser] = await self._get_event_participants(event._id)
 
+            event_ended_string: str = self._("event_ended", "messages").format(
+                event_name=event.name, stages=stages_string
+            )
+
+            chunk_size: int = 2000
+
+            event_info_chunks: List[str] = [
+                event_ended_string[i : i + chunk_size]
+                for i in range(0, len(event_ended_string), chunk_size)
+            ]
+
             for user in users:
+                if str(event._id) not in user.event_channels:
+                    logger.warning(
+                        "User %s participated in the event %s but did not have a channel. End message will not be sent and permissions will not be updated.",
+                        user.id,
+                        event._id,
+                    )
+                    continue
+
                 # Send a notification about event start
                 user_channel: TextChannel = guild.get_channel(user.event_channels[str(event._id)])
 
-                # TODO Make a nice message
-                await user_channel.send(
-                    f"Event **{event.name}** has ended! Stages and respective answers are listed below.\n\n{stages_string}"
-                )
+                for chunk in event_info_chunks:
+                    await user_channel.send(chunk)
 
                 # Lock each participant out
                 await user.lock_event_channel(guild, event._id, channel=user_channel)
 
-            # TODO Make a nice message
+            await event.end(cache=self.cache)
+
             await self.notify_admins(
                 guild,
                 pycord_guild,
-                f"Event **{event.name}** has ended! Users can no longer submit their answers.",
+                self._("admin_event_ended", "messages").format(event_name=event.name),
+            )
+
+            await self._notify_general_channel_event_end(guild, pycord_guild, event, stages)
+
+    async def _notify_general_channel_event_end(
+        self, guild: Guild, pycord_guild: PycordGuild, event: PycordEvent, stages: List[PycordEventStage]
+    ) -> None:
+        event_ended_string: str = self._("event_ended_short", "messages").format(event_name=event.name)
+
+        await self.notify_users(
+            guild,
+            pycord_guild,
+            event_ended_string,
+        )
+
+        chunk_size: int = 2000
+
+        for stage in stages:
+            header_full: str = self._("stage_entry_header", "messages").format(
+                sequence=stage.sequence + 1, question=stage.question
+            )
+
+            header_chunks: List[str] = [
+                header_full[i : i + chunk_size] for i in range(0, len(header_full), chunk_size)
+            ]
+            header_chunks_length: int = len(header_chunks)
+
+            files: List[File] | None = stage.get_media_files()
+
+            for index, chunk in enumerate(header_chunks):
+                await self.notify_users(
+                    guild,
+                    pycord_guild,
+                    chunk,
+                    files=None if index != header_chunks_length - 1 else files,
+                )
+
+            await self.notify_users(
+                guild, pycord_guild, self._("stage_entry_footer", "messages").format(answer=stage.answer)
             )
 
     @staticmethod
@@ -177,18 +336,35 @@ class PycordBot(LibPycordBot):
     # TODO Add documentation
     @staticmethod
     async def notify_admins(guild: Guild, pycord_guild: PycordGuild, message: str) -> None:
-        management_channel: TextChannel | None = guild.get_channel(pycord_guild.channel_id)
+        management_channel: TextChannel | None = guild.get_channel(pycord_guild.management_channel_id)
 
         if management_channel is None:
             logger.error(
                 "Discord channel with ID %s in guild with ID %s could not be found!",
-                pycord_guild.channel_id,
+                pycord_guild.management_channel_id,
                 guild.id,
             )
             return
 
         await management_channel.send(message)
 
+    # TODO Add documentation
+    @staticmethod
+    async def notify_users(
+        guild: Guild, pycord_guild: PycordGuild, message: str, files: Optional[List[File]] = None
+    ) -> None:
+        general_channel: TextChannel | None = guild.get_channel(pycord_guild.general_channel_id)
+
+        if general_channel is None:
+            logger.error(
+                "Discord channel with ID %s in guild with ID %s could not be found!",
+                pycord_guild.general_channel_id,
+                guild.id,
+            )
+            return
+
+        await general_channel.send(message, files=files)
+
     async def find_user(self, user: int | User, guild: int | Guild) -> PycordUser:
         """Find User by its ID or User object.
 
@@ -241,8 +417,7 @@ class PycordBot(LibPycordBot):
         # event: PycordEvent = await self.find_event(event_id=kwargs["event_id"])
 
         if "sequence" not in kwargs:
-            # TODO Create a nicer exception
-            raise RuntimeError("Stage must have a defined sequence")
+            raise EventStageMissingSequenceError()
 
         event_stage: PycordEventStage = await PycordEventStage.create(**kwargs, cache=self.cache)
 
@@ -251,19 +426,25 @@ class PycordBot(LibPycordBot):
         return event_stage
 
     # TODO Document this method
-    async def find_event(self, event_id: str | ObjectId | None = None, event_name: str | None = None) -> PycordEvent:
-        if event_id is None and event_name is None:
-            raise AttributeError("Either event's ID or name must be provided!")
+    async def find_event(
+        self,
+        event_id: Optional[str | ObjectId] = None,
+        event_name: Optional[str] = None,
+        guild_id: Optional[int] = None,
+    ) -> PycordEvent:
+        if event_id is None and (event_name is None or guild_id is None):
+            raise AttributeError("Either event ID or name with guild ID must be provided")
 
         if event_id is not None:
             return await PycordEvent.from_id(event_id, cache=self.cache)
-        else:
-            return await PycordEvent.from_name(event_name, cache=self.cache)
+
+        return await PycordEvent.from_name(event_name, guild_id, cache=self.cache)
 
     # TODO Document this method
     async def find_event_stage(self, stage_id: str | ObjectId) -> PycordEventStage:
         return await PycordEventStage.from_id(stage_id, cache=self.cache)
 
+    # TODO Add documentation
     @staticmethod
     async def process_attachments(attachments: List[Attachment]) -> List[Dict[str, Any]]:
         processed_attachments: List[Dict[str, Any]] = []
@@ -273,3 +454,25 @@ class PycordBot(LibPycordBot):
             processed_attachments.append({"id": attachment.id, "filename": attachment.filename})
 
         return processed_attachments
+
+    # TODO Add documentation
+    async def send_stage_question(
+        self,
+        channel: TextChannel,
+        event: PycordEvent,
+        stage: Optional[PycordEventStage] = None,
+        use_first_stage: bool = False,
+    ) -> None:
+        stage: PycordEventStage = (
+            stage
+            if not use_first_stage or stage is not None
+            else await self.find_event_stage(event.stage_ids[0])
+        )
+
+        stage_files: List[File] | None = stage.get_media_files()
+
+        question_chunks: List[str] = stage.get_question_chunked(2000)
+        question_chunks_length: int = len(question_chunks)
+
+        for index, chunk in enumerate(question_chunks):
+            await channel.send(chunk, files=None if index != question_chunks_length - 1 else stage_files)

classes/pycord_event.py

@@ -1,14 +1,19 @@
+"""Module with class PycordEvent."""
+
 from dataclasses import dataclass
-from datetime import datetime
+from datetime import datetime, tzinfo
 from logging import Logger
 from typing import Any, Dict, List, Optional
 from zoneinfo import ZoneInfo
 
 from bson import ObjectId
-from discord import Bot
 from libbot.cache.classes import Cache
+from pymongo import DESCENDING
 from pymongo.results import InsertOneResult
 
+from classes.abstract import Cacheable
+from classes.base.base_cacheable import BaseCacheable
+from classes.errors import EventNotFoundError
 from modules.database import col_events
 from modules.utils import get_logger, restore_from_cache
 
@@ -16,7 +21,23 @@ logger: Logger = get_logger(__name__)
 
 
 @dataclass
-class PycordEvent:
+class PycordEvent(BaseCacheable):
+    """Object representation of an event in the database.
+
+    Attributes:
+        _id (ObjectId): ID of the event generated by the database.
+        name (str): Name of the event.
+        guild_id (int): Discord ID of the guild where the event takes place.
+        created (datetime): Date of event's creation in UTC.
+        ended (datetime | None): Date of the event's actual end in UTC.
+        is_cancelled (bool): Whether the event is cancelled.
+        creator_id (int): Discord ID of the creator.
+        starts (datetime): Date of the event's planned start in UTC.
+        ends (datetime): Date of the event's planned end in UTC.
+        thumbnail (Dict[str, Any] | None): Thumbnail to use for the event in format `{"id": thumbnail_id (int), "filename": thumbnail_filename (str)}`.
+        stage_ids (List[ObjectId]): Database ID's of the event's stages ordered in the completion order.
+    """
+
     __slots__ = (
         "_id",
         "name",
@@ -47,53 +68,64 @@ class PycordEvent:
 
     @classmethod
     async def from_id(cls, event_id: str | ObjectId, cache: Optional[Cache] = None) -> "PycordEvent":
-        """Find event in the database.
+        """Find the event by its ID and construct PycordEvent from database entry.
 
         Args:
-            event_id (str | ObjectId): Event's ID
-            cache (:obj:`Cache`, optional): Cache engine to get the cache from
+            event_id (str | ObjectId): ID of the event to look up.
+            cache (:obj:`Cache`, optional): Cache engine that will be used to fetch and update the cache.
 
         Returns:
-            PycordEvent: Event object
+            PycordEvent: Object of the found event.
 
         Raises:
-             EventNotFoundError: Event was not found
-             InvalidId: Invalid event ID was provided
+             EventNotFoundError: Event with such ID does not exist.
+             InvalidId: Provided event ID is of invalid format.
         """
         cached_entry: Dict[str, Any] | None = restore_from_cache(cls.__short_name__, event_id, cache=cache)
 
         if cached_entry is not None:
-            return cls(**cached_entry)
+            return cls(**cls._entry_from_cache(cached_entry))
 
         db_entry = await cls.__collection__.find_one(
             {"_id": event_id if isinstance(event_id, ObjectId) else ObjectId(event_id)}
         )
 
         if db_entry is None:
-            raise RuntimeError(f"Event {event_id} not found")
-
-            # TODO Add a unique exception
-            # raise EventNotFoundError(event_id)
+            raise EventNotFoundError(event_id=event_id)
 
         if cache is not None:
-            cache.set_json(f"{cls.__short_name__}_{event_id}", db_entry)
+            cache.set_json(f"{cls.__short_name__}_{event_id}", cls._entry_to_cache(dict(db_entry)))
 
         return cls(**db_entry)
 
     @classmethod
-    async def from_name(cls, event_name: str, cache: Optional[Cache] = None) -> "PycordEvent":
-        # TODO Add sorting by creation date or something.
-        #  Duplicate events should be avoided, latest active event should be returned.
-        db_entry: Dict[str, Any] | None = await cls.__collection__.find_one({"name": event_name})
+    async def from_name(
+        cls, event_name: str, guild_id: int, cache: Optional[Cache] = None
+    ) -> "PycordEvent":
+        """Find the event by its name and construct PycordEvent from database entry.
+
+        If multiple events with the same name exist, the one with the greatest start date will be returned.
+
+        Args:
+            event_name (str): Name of the event to look up.
+            guild_id (int): Discord ID of the guild where the event takes place.
+            cache (:obj:`Cache`, optional): Cache engine that will be used to update the cache.
+
+        Returns:
+            PycordEvent: Object of the found event.
+
+        Raises:
+            EventNotFoundError: Event with such name does not exist.
+        """
+        db_entry: Dict[str, Any] | None = await cls.__collection__.find_one(
+            {"name": event_name, "guild_id": guild_id}, sort=[("starts", DESCENDING)]
+        )
 
         if db_entry is None:
-            raise RuntimeError(f"Event with name {event_name} not found")
-
-            # TODO Add a unique exception
-            # raise EventNotFoundError(event_name)
+            raise EventNotFoundError(event_name=event_name, guild_id=guild_id)
 
         if cache is not None:
-            cache.set_json(f"{cls.__short_name__}_{db_entry['_id']}", db_entry)
+            cache.set_json(f"{cls.__short_name__}_{db_entry['_id']}", cls._entry_to_cache(db_entry))
 
         return cls(**db_entry)
 
@@ -108,6 +140,22 @@ class PycordEvent:
         thumbnail: Dict[str, Any] | None,
         cache: Optional[Cache] = None,
     ) -> "PycordEvent":
+        """Create an event, write it to the database and return the constructed PycordEvent object.
+
+        Creation date will be set to current time in UTC automatically.
+
+        Args:
+            name (str): Name of the event.
+            guild_id (int): Guild ID where the event takes place.
+            creator_id (int): Discord ID of the event creator.
+            starts (datetime): Date when the event starts. Must be UTC.
+            ends (datetime): Date when the event ends. Must be UTC.
+            thumbnail (:obj:`Dict[str, Any]`, optional): Thumbnail to use for the event in format `{"id": thumbnail_id (int), "filename": thumbnail_filename (str)}`.
+            cache (:obj:`Cache`, optional): Cache engine that will be used to update the cache.
+
+        Returns:
+            PycordEvent: Object of the created event.
+        """
         db_entry: Dict[str, Any] = {
             "name": name,
             "guild_id": guild_id,
@@ -126,147 +174,24 @@ class PycordEvent:
         db_entry["_id"] = insert_result.inserted_id
 
         if cache is not None:
-            cache.set_json(f"{cls.__short_name__}_{guild_id}", db_entry)
+            cache.set_json(f"{cls.__short_name__}_{guild_id}", cls._entry_to_cache(db_entry))
 
         return cls(**db_entry)
 
     async def _set(self, cache: Optional[Cache] = None, **kwargs: Any) -> None:
-        """Set attribute data and save it into the database.
-
-        Args:
-            cache (:obj:`Cache`, optional): Cache engine to write the update into
-            **kwargs (Any): Mapping of attribute names and respective values to be set
-        """
-        for key, value in kwargs.items():
-            if not hasattr(self, key):
-                raise AttributeError()
-
-            setattr(self, key, value)
-
-        await self.__collection__.update_one({"_id": self._id}, {"$set": kwargs}, upsert=True)
-
-        self._update_cache(cache)
-
-        logger.info("Set attributes of event %s to %s", self._id, kwargs)
+        await super()._set(cache, **kwargs)
 
     async def _remove(self, *args: str, cache: Optional[Cache] = None) -> None:
-        """Remove attribute data and save it into the database.
-
-        Args:
-            cache (:obj:`Cache`, optional): Cache engine to write the update into
-            *args (str): List of attributes to remove
-        """
-        attributes: Dict[str, Any] = {}
-
-        for key in args:
-            if not hasattr(self, key):
-                raise AttributeError()
-
-            default_value: Any = self.get_default_value(key)
-
-            setattr(self, key, default_value)
-
-            attributes[key] = default_value
-
-        await self.__collection__.update_one({"_id": self._id}, {"$set": attributes}, upsert=True)
-
-        self._update_cache(cache)
-
-        logger.info("Reset attributes %s of event %s to default values", args, self._id)
+        await super()._remove(*args, cache=cache)
 
     def _get_cache_key(self) -> str:
         return f"{self.__short_name__}_{self._id}"
 
     def _update_cache(self, cache: Optional[Cache] = None) -> None:
-        if cache is None:
-            return
-
-        user_dict: Dict[str, Any] = self.to_dict()
-
-        if user_dict is not None:
-            cache.set_json(self._get_cache_key(), user_dict)
-        else:
-            self._delete_cache(cache)
+        super()._update_cache(cache)
 
     def _delete_cache(self, cache: Optional[Cache] = None) -> None:
-        if cache is None:
-            return
-
-        cache.delete(self._get_cache_key())
-
-    def to_dict(self, json_compatible: bool = False) -> Dict[str, Any]:
-        """Convert PycordEvent object to a JSON representation.
-
-        Args:
-            json_compatible (bool): Whether the JSON-incompatible objects like ObjectId need to be converted
-
-        Returns:
-            Dict[str, Any]: JSON representation of PycordEvent
-        """
-        return {
-            "_id": self._id if not json_compatible else str(self._id),
-            "name": self.name,
-            "guild_id": self.guild_id,
-            "created": self.created,
-            "ended": self.ended,
-            "is_cancelled": self.is_cancelled,
-            "creator_id": self.creator_id,
-            "starts": self.starts,
-            "ends": self.ends,
-            "thumbnail": self.thumbnail,
-            "stage_ids": self.stage_ids,
-        }
-
-    @staticmethod
-    def get_defaults() -> Dict[str, Any]:
-        return {
-            "name": None,
-            "guild_id": None,
-            "created": None,
-            "ended": None,
-            "is_cancelled": False,
-            "creator_id": None,
-            "starts": None,
-            "ends": None,
-            "thumbnail": None,
-            "stage_ids": [],
-        }
-
-    @staticmethod
-    def get_default_value(key: str) -> Any:
-        if key not in PycordEvent.get_defaults():
-            raise KeyError(f"There's no default value for key '{key}' in PycordEvent")
-
-        return PycordEvent.get_defaults()[key]
-
-    # TODO Add documentation
-    async def update(
-        self,
-        cache: Optional[Cache] = None,
-        **kwargs,
-    ):
-        await self._set(cache=cache, **kwargs)
-
-    # TODO Add documentation
-    async def reset(
-        self,
-        cache: Optional[Cache] = None,
-        *args,
-    ):
-        await self._remove(cache, *args)
-
-    async def purge(self, cache: Optional[Cache] = None) -> None:
-        """Completely remove event data from database. Currently only removes the event record from events collection.
-
-        Args:
-            cache (:obj:`Cache`, optional): Cache engine to write the update into
-        """
-        await self.__collection__.delete_one({"_id": self._id})
-        self._delete_cache(cache)
-
-    # TODO Add documentation
-    async def cancel(self, cache: Optional[Cache] = None):
-        await self._set(cache, is_cancelled=True)
+        super()._delete_cache(cache)
 
     async def _update_event_stage_order(
         self,
@@ -286,15 +211,154 @@ class PycordEvent:
             stage_index: int = self.stage_ids.index(event_stage_id)
             old_stage_index: int = old_stage_ids.index(event_stage_id)
 
-            logger.debug("Indexes for %s: was %s and is now %s", event_stage_id, old_stage_index, stage_index)
+            logger.debug(
+                "Indexes for %s: was %s and is now %s", event_stage_id, old_stage_index, stage_index
+            )
 
             if stage_index != old_stage_index:
                 await (await bot.find_event_stage(event_stage_id)).update(cache, sequence=stage_index)
 
-    # TODO Add documentation
-    async def insert_stage(
-        self, bot: Bot, event_stage_id: ObjectId, index: int, cache: Optional[Cache] = None
+    @staticmethod
+    def _entry_to_cache(db_entry: Dict[str, Any]) -> Dict[str, Any]:
+        cache_entry: Dict[str, Any] = db_entry.copy()
+
+        cache_entry["_id"] = str(cache_entry["_id"])
+        cache_entry["created"] = cache_entry["created"].isoformat()
+        cache_entry["ended"] = None if cache_entry["ended"] is None else cache_entry["ended"].isoformat()
+        cache_entry["starts"] = cache_entry["starts"].isoformat()
+        cache_entry["ends"] = cache_entry["ends"].isoformat()
+        cache_entry["stage_ids"] = [str(stage_id) for stage_id in cache_entry["stage_ids"]]
+
+        return cache_entry
+
+    @staticmethod
+    def _entry_from_cache(cache_entry: Dict[str, Any]) -> Dict[str, Any]:
+        db_entry: Dict[str, Any] = cache_entry.copy()
+
+        db_entry["_id"] = ObjectId(db_entry["_id"])
+        db_entry["created"] = datetime.fromisoformat(db_entry["created"])
+        db_entry["ended"] = None if db_entry["ended"] is None else datetime.fromisoformat(db_entry["ended"])
+        db_entry["starts"] = datetime.fromisoformat(db_entry["starts"])
+        db_entry["ends"] = datetime.fromisoformat(db_entry["ends"])
+        db_entry["stage_ids"] = [ObjectId(stage_id) for stage_id in db_entry["stage_ids"]]
+
+        return db_entry
+
+    def to_dict(self, json_compatible: bool = False) -> Dict[str, Any]:
+        """Convert the object to a JSON representation.
+
+        Args:
+            json_compatible (bool): Whether the JSON-incompatible objects like ObjectId need to be converted.
+
+        Returns:
+            Dict[str, Any]: JSON representation of the object.
+        """
+        return {
+            "_id": self._id if not json_compatible else str(self._id),
+            "name": self.name,
+            "guild_id": self.guild_id,
+            "created": self.created if not json_compatible else self.created.isoformat(),
+            "ended": (
+                self.ended
+                if not json_compatible
+                else (None if self.ended is None else self.ended.isoformat())
+            ),
+            "is_cancelled": self.is_cancelled,
+            "creator_id": self.creator_id,
+            "starts": self.starts if not json_compatible else self.starts.isoformat(),
+            "ends": self.ends if not json_compatible else self.ends.isoformat(),
+            "thumbnail": self.thumbnail,
+            "stage_ids": (
+                self.stage_ids if not json_compatible else [str(stage_id) for stage_id in self.stage_ids]
+            ),
+        }
+
+    @staticmethod
+    def get_defaults() -> Dict[str, Any]:
+        """Get default values for the object attributes.
+
+        Returns:
+            Dict[str, Any]: Mapping of attributes and their respective values in format `{"attribute_name:" attribute_value}`.
+        """
+        return {
+            "name": None,
+            "guild_id": None,
+            "created": None,
+            "ended": None,
+            "is_cancelled": False,
+            "creator_id": None,
+            "starts": None,
+            "ends": None,
+            "thumbnail": None,
+            "stage_ids": [],
+        }
+
+    @staticmethod
+    def get_default_value(key: str) -> Any:
+        """Get default value of the attribute for the object.
+
+        Args:
+            key (str): Name of the attribute.
+
+        Returns:
+            Any: Default value of the attribute.
+
+        Raises:
+            KeyError: There's no default value for the provided attribute.
+        """
+        if key not in PycordEvent.get_defaults():
+            raise KeyError(f"There's no default value for key '{key}' in PycordEvent")
+
+        return PycordEvent.get_defaults()[key]
+
+    async def update(
+        self,
+        cache: Optional[Cache] = None,
+        **kwargs: Any,
     ) -> None:
+        await super().update(cache=cache, **kwargs)
+
+    async def reset(
+        self,
+        *args: str,
+        cache: Optional[Cache] = None,
+    ) -> None:
+        await super().reset(*args, cache=cache)
+
+    async def purge(self, cache: Optional[Cache] = None) -> None:
+        await super().purge(cache)
+
+    async def cancel(self, cache: Optional[Cache] = None) -> None:
+        """Cancel the event.
+
+        Attribute `is_cancelled` will be set to `True`.
+
+        Args:
+            cache (:obj:`Cache`, optional): Cache engine that will be used to update the cache.
+        """
+        await self._set(cache, is_cancelled=True)
+
+    async def end(self, cache: Optional[Cache] = None) -> None:
+        """End the event.
+
+        Attribute `ended` will be set to the current date in UTC.
+
+        Args:
+            cache (:obj:`Cache`, optional): Cache engine that will be used to update the cache.
+        """
+        await self._set(cache, ended=datetime.now(tz=ZoneInfo("UTC")))
+
+    async def insert_stage(
+        self, bot: "PycordBot", event_stage_id: ObjectId, index: int, cache: Optional[Cache] = None
+    ) -> None:
+        """Insert a stage at the provided index.
+
+        Args:
+            bot (PycordBot): Bot object.
+            event_stage_id (ObjectId): Stage ID to be inserted.
+            index (int): Index to be inserted at.
+            cache: Cache engine that will be used to update the cache.
+        """
         old_stage_ids: List[ObjectId] = self.stage_ids.copy()
 
         self.stage_ids.insert(index, event_stage_id)
@@ -302,10 +366,17 @@ class PycordEvent:
         await self._set(cache, stage_ids=self.stage_ids)
         await self._update_event_stage_order(bot, old_stage_ids, cache=cache)
 
-    # TODO Add documentation
     async def reorder_stage(
-        self, bot: Any, event_stage_id: ObjectId, index: int, cache: Optional[Cache] = None
+        self, bot: "PycordBot", event_stage_id: ObjectId, index: int, cache: Optional[Cache] = None
     ) -> None:
+        """Reorder a stage to the provided index.
+
+        Args:
+            bot (PycordBot): Bot object.
+            event_stage_id (ObjectId): Stage ID to be reordered.
+            index (int): Index to be reordered to.
+            cache: Cache engine that will be used to update the cache.
+        """
         old_stage_ids: List[ObjectId] = self.stage_ids.copy()
 
         self.stage_ids.insert(index, self.stage_ids.pop(self.stage_ids.index(event_stage_id)))
@@ -313,8 +384,16 @@ class PycordEvent:
         await self._set(cache, stage_ids=self.stage_ids)
         await self._update_event_stage_order(bot, old_stage_ids, cache=cache)
 
-    # TODO Add documentation
-    async def remove_stage(self, bot: Bot, event_stage_id: ObjectId, cache: Optional[Cache] = None) -> None:
+    async def remove_stage(
+        self, bot: "PycordBot", event_stage_id: ObjectId, cache: Optional[Cache] = None
+    ) -> None:
+        """Remove a stage from the event.
+
+        Args:
+            bot (PycordBot): Bot object.
+            event_stage_id (ObjectId): Stage ID to be reordered.
+            cache: Cache engine that will be used to update the cache.
+        """
         old_stage_ids: List[ObjectId] = self.stage_ids.copy()
 
         self.stage_ids.pop(self.stage_ids.index(event_stage_id))
@@ -322,10 +401,58 @@ class PycordEvent:
         await self._set(cache, stage_ids=self.stage_ids)
         await self._update_event_stage_order(bot, old_stage_ids, cache=cache)
 
-    # # TODO Add documentation
-    # def get_localized_start_date(self, tz: str | timezone | ZoneInfo) -> datetime:
-    #     return self.starts.replace(tzinfo=tz)
-    #
-    # # TODO Add documentation
-    # def get_localized_end_date(self, tz: str | timezone | ZoneInfo) -> datetime:
-    #     return self.ends.replace(tzinfo=tz)
+    def get_start_date_utc(self) -> datetime:
+        """Get the event start date in UTC timezone.
+
+        Returns:
+            datetime: Start date in UTC.
+
+        Raises:
+            ValueError: Event does not have a start date.
+        """
+        if self.starts is None:
+            raise ValueError("Event does not have a start date")
+
+        return self.starts.replace(tzinfo=ZoneInfo("UTC"))
+
+    def get_end_date_utc(self) -> datetime:
+        """Get the event end date in UTC timezone.
+
+        Returns:
+            datetime: End date in UTC.
+
+        Raises:
+            ValueError: Event does not have an end date.
+        """
+        if self.ends is None:
+            raise ValueError("Event does not have an end date")
+
+        return self.ends.replace(tzinfo=ZoneInfo("UTC"))
+
+    def get_start_date_localized(self, tz: tzinfo) -> datetime:
+        """Get the event start date in the provided timezone.
+
+        Returns:
+            datetime: Start date in the provided timezone.
+
+        Raises:
+            ValueError: Event does not have a start date.
+        """
+        if self.starts is None:
+            raise ValueError("Event does not have a start date")
+
+        return self.starts.replace(tzinfo=tz)
+
+    def get_end_date_localized(self, tz: tzinfo) -> datetime:
+        """Get the event end date in the provided timezone.
+
+        Returns:
+            datetime: End date in the provided timezone.
+
+        Raises:
+            ValueError: Event does not have an end date.
+        """
+        if self.ends is None:
+            raise ValueError("Event does not have an end date")
+
+        return self.ends.replace(tzinfo=tz)

classes/pycord_event_stage.py

@@ -10,6 +10,8 @@ from discord import File
 from libbot.cache.classes import Cache
 from pymongo.results import InsertOneResult
 
+from classes.base.base_cacheable import BaseCacheable
+from classes.errors import EventStageNotFoundError
 from modules.database import col_stages
 from modules.utils import get_logger, restore_from_cache
 
@@ -17,7 +19,7 @@ logger: Logger = get_logger(__name__)
 
 
 @dataclass
-class PycordEventStage:
+class PycordEventStage(BaseCacheable):
     __slots__ = (
         "_id",
         "event_id",
@@ -44,38 +46,37 @@ class PycordEventStage:
 
     @classmethod
     async def from_id(cls, stage_id: str | ObjectId, cache: Optional[Cache] = None) -> "PycordEventStage":
-        """Find event stage in the database.
+        """Find the event stage by its ID and construct PycordEventStage from database entry.
 
         Args:
-            stage_id (str | ObjectId): Stage's ID
-            cache (:obj:`Cache`, optional): Cache engine to get the cache from
+            stage_id (str | ObjectId): ID of the event stage to look up.
+            cache (:obj:`Cache`, optional): Cache engine that will be used to fetch and update the cache.
 
         Returns:
-            PycordEventStage: Event stage object
+            PycordEventStage: Object of the found event stage.
 
         Raises:
-             EventStageNotFoundError: Event stage was not found
+             EventStageNotFoundError: Event stage with such ID does not exist.
+             InvalidId: Provided event stage ID is of invalid format.
         """
         cached_entry: Dict[str, Any] | None = restore_from_cache(cls.__short_name__, stage_id, cache=cache)
 
         if cached_entry is not None:
-            return cls(**cached_entry)
+            return cls(**cls._entry_from_cache(cached_entry))
 
         db_entry = await cls.__collection__.find_one(
             {"_id": stage_id if isinstance(stage_id, ObjectId) else ObjectId(stage_id)}
         )
 
         if db_entry is None:
-            raise RuntimeError(f"Event stage {stage_id} not found")
-
-            # TODO Add a unique exception
-            # raise EventStageNotFoundError(event_id)
+            raise EventStageNotFoundError(stage_id)
 
         if cache is not None:
-            cache.set_json(f"{cls.__short_name__}_{stage_id}", db_entry)
+            cache.set_json(f"{cls.__short_name__}_{stage_id}", cls._entry_to_cache(dict(db_entry)))
 
         return cls(**db_entry)
 
+    # TODO Add documentation
     @classmethod
     async def create(
         cls,
@@ -104,89 +105,60 @@ class PycordEventStage:
         db_entry["_id"] = insert_result.inserted_id
 
         if cache is not None:
-            cache.set_json(f"{cls.__short_name__}_{guild_id}", db_entry)
+            cache.set_json(f"{cls.__short_name__}_{guild_id}", cls._entry_to_cache(db_entry))
 
         return cls(**db_entry)
 
     async def _set(self, cache: Optional[Cache] = None, **kwargs: Any) -> None:
-        """Set attribute data and save it into the database.
-
-        Args:
-            cache (:obj:`Cache`, optional): Cache engine to write the update into
-            **kwargs (Any): Mapping of attribute names and respective values to be set
-        """
-        for key, value in kwargs.items():
-            if not hasattr(self, key):
-                raise AttributeError()
-
-            setattr(self, key, value)
-
-        await self.__collection__.update_one({"_id": self._id}, {"$set": kwargs}, upsert=True)
-
-        self._update_cache(cache)
-
-        logger.info("Set attributes of event stage %s to %s", self._id, kwargs)
+        await super()._set(cache, **kwargs)
 
     async def _remove(self, *args: str, cache: Optional[Cache] = None) -> None:
-        """Remove attribute data and save it into the database.
-
-        Args:
-            cache (:obj:`Cache`, optional): Cache engine to write the update into
-            *args (str): List of attributes to remove
-        """
-        attributes: Dict[str, Any] = {}
-
-        for key in args:
-            if not hasattr(self, key):
-                raise AttributeError()
-
-            default_value: Any = self.get_default_value(key)
-
-            setattr(self, key, default_value)
-
-            attributes[key] = default_value
-
-        await self.__collection__.update_one({"_id": self._id}, {"$set": attributes}, upsert=True)
-
-        self._update_cache(cache)
-
-        logger.info("Reset attributes %s of event stage %s to default values", args, self._id)
+        await super()._remove(*args, cache=cache)
 
     def _get_cache_key(self) -> str:
         return f"{self.__short_name__}_{self._id}"
 
     def _update_cache(self, cache: Optional[Cache] = None) -> None:
-        if cache is None:
-            return
-
-        user_dict: Dict[str, Any] = self.to_dict()
-
-        if user_dict is not None:
-            cache.set_json(self._get_cache_key(), user_dict)
-        else:
-            self._delete_cache(cache)
+        super()._update_cache(cache)
 
     def _delete_cache(self, cache: Optional[Cache] = None) -> None:
-        if cache is None:
-            return
+        super()._delete_cache(cache)
 
-        cache.delete(self._get_cache_key())
+    @staticmethod
+    def _entry_to_cache(db_entry: Dict[str, Any]) -> Dict[str, Any]:
+        cache_entry: Dict[str, Any] = db_entry.copy()
+
+        cache_entry["_id"] = str(cache_entry["_id"])
+        cache_entry["event_id"] = str(cache_entry["event_id"])
+        cache_entry["created"] = cache_entry["created"].isoformat()
+
+        return cache_entry
+
+    @staticmethod
+    def _entry_from_cache(cache_entry: Dict[str, Any]) -> Dict[str, Any]:
+        db_entry: Dict[str, Any] = cache_entry.copy()
+
+        db_entry["_id"] = ObjectId(db_entry["_id"])
+        db_entry["event_id"] = ObjectId(db_entry["event_id"])
+        db_entry["created"] = datetime.fromisoformat(db_entry["created"])
+
+        return db_entry
 
     def to_dict(self, json_compatible: bool = False) -> Dict[str, Any]:
-        """Convert PycordEventStage object to a JSON representation.
+        """Convert the object to a JSON representation.
 
         Args:
-            json_compatible (bool): Whether the JSON-incompatible objects like ObjectId need to be converted
+            json_compatible (bool): Whether the JSON-incompatible objects like ObjectId need to be converted.
 
         Returns:
-            Dict[str, Any]: JSON representation of PycordEventStage
+            Dict[str, Any]: JSON representation of the object.
         """
         return {
             "_id": self._id if not json_compatible else str(self._id),
             "event_id": self.event_id if not json_compatible else str(self.event_id),
             "guild_id": self.guild_id,
             "sequence": self.sequence,
-            "created": self.created,
+            "created": self.created if not json_compatible else self.created.isoformat(),
             "creator_id": self.creator_id,
             "question": self.question,
             "answer": self.answer,
@@ -195,6 +167,11 @@ class PycordEventStage:
 
     @staticmethod
     def get_defaults() -> Dict[str, Any]:
+        """Get default values for the object attributes.
+
+        Returns:
+            Dict[str, Any]: Mapping of attributes and their respective values in format `{"attribute_name:" attribute_value}`.
+        """
         return {
             "event_id": None,
             "guild_id": None,
@@ -208,35 +185,38 @@ class PycordEventStage:
 
     @staticmethod
     def get_default_value(key: str) -> Any:
+        """Get default value of the attribute for the object.
+
+        Args:
+            key (str): Name of the attribute.
+
+        Returns:
+            Any: Default value of the attribute.
+
+        Raises:
+            KeyError: There's no default value for the provided attribute.
+        """
         if key not in PycordEventStage.get_defaults():
             raise KeyError(f"There's no default value for key '{key}' in PycordEventStage")
 
         return PycordEventStage.get_defaults()[key]
 
-    # TODO Add documentation
     async def update(
         self,
         cache: Optional[Cache] = None,
-        **kwargs,
-    ):
-        await self._set(cache=cache, **kwargs)
+        **kwargs: Any,
+    ) -> None:
+        await super().update(cache=cache, **kwargs)
 
-    # TODO Add documentation
     async def reset(
         self,
+        *args: str,
         cache: Optional[Cache] = None,
-        *args,
-    ):
-        await self._remove(cache, *args)
+    ) -> None:
+        await super().reset(*args, cache=cache)
 
     async def purge(self, cache: Optional[Cache] = None) -> None:
-        """Completely remove event stage data from database. Currently only removes the event stage record from events collection.
-
-        Args:
-            cache (:obj:`Cache`, optional): Cache engine to write the update into
-        """
-        await self.__collection__.delete_one({"_id": self._id})
-        self._delete_cache(cache)
+        await super().purge(cache)
 
     # TODO Add documentation
     def get_media_files(self) -> List[File] | None:
@@ -245,3 +225,7 @@ class PycordEventStage:
             if len(self.media) == 0
             else [File(Path(f"data/{media['id']}"), media["filename"]) for media in self.media]
         )
+
+    # TODO Add documentation
+    def get_question_chunked(self, chunk_size: int) -> List[str]:
+        return [self.question[i : i + chunk_size] for i in range(0, len(self.question), chunk_size)]

classes/pycord_guild.py

@@ -6,6 +6,7 @@ from bson import ObjectId
 from libbot.cache.classes import Cache
 from pymongo.results import InsertOneResult
 
+from classes.base.base_cacheable import BaseCacheable
 from classes.errors import GuildNotFoundError
 from modules.database import col_guilds
 from modules.utils import get_logger, restore_from_cache
@@ -14,40 +15,50 @@ logger: Logger = get_logger(__name__)
 
 
 @dataclass
-class PycordGuild:
+class PycordGuild(BaseCacheable):
     """Dataclass of DB entry of a guild"""
 
-    __slots__ = ("_id", "id", "channel_id", "category_id", "timezone")
+    __slots__ = (
+        "_id",
+        "id",
+        "general_channel_id",
+        "management_channel_id",
+        "category_id",
+        "timezone",
+        "prefer_emojis",
+    )
     __short_name__ = "guild"
     __collection__ = col_guilds
 
     _id: ObjectId
     id: int
-    channel_id: int | None
+    general_channel_id: int | None
+    management_channel_id: int | None
     category_id: int | None
     timezone: str
+    prefer_emojis: bool
 
     @classmethod
     async def from_id(
         cls, guild_id: int, allow_creation: bool = True, cache: Optional[Cache] = None
     ) -> "PycordGuild":
-        """Find guild in database and create new record if guild does not exist.
+        """Find the guild by its ID and construct PycordEventStage from database entry.
 
         Args:
-            guild_id (int): User's Discord ID
-            allow_creation (:obj:`bool`, optional): Create new guild record if none found in the database
-            cache (:obj:`Cache`, optional): Cache engine to get the cache from
+            guild_id (int): ID of the guild to look up.
+            allow_creation (:obj:`bool`, optional): Create a new record if none found in the database.
+            cache (:obj:`Cache`, optional): Cache engine that will be used to fetch and update the cache.
 
         Returns:
-            PycordGuild: User object
+            PycordGuild: Object of the found or newly created guild.
 
         Raises:
-             GuildNotFoundError: User was not found and creation was not allowed
+             GuildNotFoundError: Guild with such ID does not exist and creation was not allowed.
         """
         cached_entry: Dict[str, Any] | None = restore_from_cache(cls.__short_name__, guild_id, cache=cache)
 
         if cached_entry is not None:
-            return cls(**cached_entry)
+            return cls(**cls._entry_from_cache(cached_entry))
 
         db_entry = await cls.__collection__.find_one({"id": guild_id})
 
@@ -62,164 +73,122 @@ class PycordGuild:
             db_entry["_id"] = insert_result.inserted_id
 
         if cache is not None:
-            cache.set_json(f"{cls.__short_name__}_{guild_id}", db_entry)
+            cache.set_json(f"{cls.__short_name__}_{guild_id}", cls._entry_to_cache(db_entry))
 
         return cls(**db_entry)
 
     async def _set(self, cache: Optional[Cache] = None, **kwargs: Any) -> None:
-        """Set attribute data and save it into the database.
-
-        Args:
-            cache (:obj:`Cache`, optional): Cache engine to write the update into
-            **kwargs (Any): Mapping of attribute names and respective values to be set
-        """
-        for key, value in kwargs.items():
-            if not hasattr(self, key):
-                raise AttributeError()
-
-            setattr(self, key, value)
-
-        await self.__collection__.update_one({"_id": self._id}, {"$set": kwargs}, upsert=True)
-
-        self._update_cache(cache)
-
-        logger.info("Set attributes of guild %s to %s", self.id, kwargs)
+        await super()._set(cache, **kwargs)
 
     async def _remove(self, *args: str, cache: Optional[Cache] = None) -> None:
-        """Remove attribute data and save it into the database.
-
-        Args:
-            cache (:obj:`Cache`, optional): Cache engine to write the update into
-            *args (str): List of attributes to remove
-        """
-        attributes: Dict[str, Any] = {}
-
-        for key in args:
-            if not hasattr(self, key):
-                raise AttributeError()
-
-            default_value: Any = self.get_default_value(key)
-
-            setattr(self, key, default_value)
-
-            attributes[key] = default_value
-
-        await self.__collection__.update_one({"_id": self._id}, {"$set": attributes}, upsert=True)
-
-        self._update_cache(cache)
-
-        logger.info("Reset attributes %s of guild %s to default values", args, self.id)
+        await super()._remove(*args, cache=cache)
 
     def _get_cache_key(self) -> str:
         return f"{self.__short_name__}_{self.id}"
 
     def _update_cache(self, cache: Optional[Cache] = None) -> None:
-        if cache is None:
-            return
-
-        user_dict: Dict[str, Any] = self.to_dict()
-
-        if user_dict is not None:
-            cache.set_json(self._get_cache_key(), user_dict)
-        else:
-            self._delete_cache(cache)
+        super()._update_cache(cache)
 
     def _delete_cache(self, cache: Optional[Cache] = None) -> None:
-        if cache is None:
-            return
+        super()._delete_cache(cache)
 
-        cache.delete(self._get_cache_key())
+    @staticmethod
+    def _entry_to_cache(db_entry: Dict[str, Any]) -> Dict[str, Any]:
+        cache_entry: Dict[str, Any] = db_entry.copy()
+
+        cache_entry["_id"] = str(cache_entry["_id"])
+
+        return cache_entry
+
+    @staticmethod
+    def _entry_from_cache(cache_entry: Dict[str, Any]) -> Dict[str, Any]:
+        db_entry: Dict[str, Any] = cache_entry.copy()
+
+        db_entry["_id"] = ObjectId(db_entry["_id"])
+
+        return db_entry
 
     def to_dict(self, json_compatible: bool = False) -> Dict[str, Any]:
-        """Convert PycordGuild object to a JSON representation.
+        """Convert the object to a JSON representation.
 
         Args:
-            json_compatible (bool): Whether the JSON-incompatible objects like ObjectId need to be converted
+            json_compatible (bool): Whether the JSON-incompatible objects like ObjectId need to be converted.
 
         Returns:
-            Dict[str, Any]: JSON representation of PycordGuild
+            Dict[str, Any]: JSON representation of the object.
         """
         return {
             "_id": self._id if not json_compatible else str(self._id),
             "id": self.id,
-            "channel_id": self.channel_id,
+            "general_channel_id": self.general_channel_id,
+            "management_channel_id": self.management_channel_id,
             "category_id": self.category_id,
             "timezone": self.timezone,
+            "prefer_emojis": self.prefer_emojis,
         }
 
     @staticmethod
     def get_defaults(guild_id: Optional[int] = None) -> Dict[str, Any]:
+        """Get default values for the object attributes.
+
+        Returns:
+            Dict[str, Any]: Mapping of attributes and their respective values in format `{"attribute_name:" attribute_value}`.
+        """
         return {
             "id": guild_id,
-            "channel_id": None,
+            "general_channel_id": None,
+            "management_channel_id": None,
             "category_id": None,
             "timezone": "UTC",
+            "prefer_emojis": False,
         }
 
     @staticmethod
     def get_default_value(key: str) -> Any:
+        """Get default value of the attribute for the object.
+
+        Args:
+            key (str): Name of the attribute.
+
+        Returns:
+            Any: Default value of the attribute.
+
+        Raises:
+            KeyError: There's no default value for the provided attribute.
+        """
         if key not in PycordGuild.get_defaults():
             raise KeyError(f"There's no default value for key '{key}' in PycordGuild")
 
         return PycordGuild.get_defaults()[key]
 
-    # TODO Add documentation
     async def update(
         self,
         cache: Optional[Cache] = None,
-        **kwargs,
-    ):
-        await self._set(cache=cache, **kwargs)
+        **kwargs: Any,
+    ) -> None:
+        await super().update(cache=cache, **kwargs)
 
-    # TODO Add documentation
     async def reset(
         self,
+        *args: str,
         cache: Optional[Cache] = None,
-        *args,
-    ):
-        await self._remove(cache, *args)
+    ) -> None:
+        await super().reset(*args, cache=cache)
 
     async def purge(self, cache: Optional[Cache] = None) -> None:
-        """Completely remove guild data from database. Currently only removes the guild record from guilds collection.
+        await super().purge(cache)
 
-        Args:
-            cache (:obj:`Cache`, optional): Cache engine to write the update into
-        """
-        await self.__collection__.delete_one({"_id": self._id})
-
-        self._delete_cache(cache)
-
-        logger.info("Purged guild %s (%s) from the database", self.id, self._id)
-
-    # TODO Add documentation
     def is_configured(self) -> bool:
+        """Return whether all attributes required for bot's use on the server are set.
+
+        Returns:
+            bool: `True` if yes and `False` if not.
+        """
         return (
             (self.id is not None)
-            and (self.channel_id is not None)
+            and (self.general_channel_id is not None)
+            and (self.management_channel_id is not None)
             and (self.category_id is not None)
             and (self.timezone is not None)
+            and (self.prefer_emojis is not None)
         )
-
-    # TODO Add documentation
-    async def set_channel(self, channel_id: Optional[int] = None, cache: Optional[Cache] = None) -> None:
-        await self._set(cache, channel_id=channel_id)
-
-    # TODO Add documentation
-    async def reset_channel(self, cache: Optional[Cache] = None) -> None:
-        await self._remove(cache, "channel_id")
-
-    # TODO Add documentation
-    async def set_category(self, category_id: Optional[int] = None, cache: Optional[Cache] = None) -> None:
-        await self._set(cache, category_id=category_id)
-
-    # TODO Add documentation
-    async def reset_category(self, cache: Optional[Cache] = None) -> None:
-        await self._remove(cache, "category_id")
-
-    # TODO Add documentation
-    async def set_timezone(self, timezone: str, cache: Optional[Cache] = None) -> None:
-        await self._set(cache, timezone=timezone)
-
-    # TODO Add documentation
-    async def reset_timezone(self, cache: Optional[Cache] = None) -> None:
-        await self._remove(cache, "timezone")

classes/pycord_user.py

@@ -17,7 +17,16 @@ from discord.abc import GuildChannel
 from libbot.cache.classes import Cache
 from pymongo.results import InsertOneResult
 
-from classes.errors.pycord_user import UserNotFoundError
+from classes.base.base_cacheable import BaseCacheable
+from classes.errors import (
+    DiscordCategoryNotFoundError,
+    DiscordChannelNotFoundError,
+    DiscordGuildMemberNotFoundError,
+    UserAlreadyCompletedEventError,
+    UserAlreadyRegisteredForEventError,
+    UserNotFoundError,
+    UserNotRegisteredForEventError,
+)
 from modules.database import col_users
 from modules.utils import get_logger, restore_from_cache
 
@@ -25,7 +34,7 @@ logger: Logger = get_logger(__name__)
 
 
 @dataclass
-class PycordUser:
+class PycordUser(BaseCacheable):
     """Dataclass of DB entry of a user"""
 
     __slots__ = (
@@ -52,11 +61,6 @@ class PycordUser:
     registered_event_ids: List[ObjectId]
     completed_event_ids: List[ObjectId]
 
-    # TODO Review the redesign
-    # event_channel_ids: {
-    #     "%event_id%": %channel_id%
-    # }
-
     @classmethod
     async def from_id(
         cls, user_id: int, guild_id: int, allow_creation: bool = True, cache: Optional[Cache] = None
@@ -80,7 +84,7 @@ class PycordUser:
         )
 
         if cached_entry is not None:
-            return cls(**cached_entry)
+            return cls(**cls._entry_from_cache(cached_entry))
 
         db_entry = await cls.__collection__.find_one({"id": user_id, "guild_id": guild_id})
 
@@ -95,7 +99,7 @@ class PycordUser:
             db_entry["_id"] = insert_result.inserted_id
 
         if cache is not None:
-            cache.set_json(f"{cls.__short_name__}_{user_id}_{guild_id}", db_entry)
+            cache.set_json(f"{cls.__short_name__}_{user_id}_{guild_id}", cls._entry_to_cache(db_entry))
 
         return cls(**db_entry)
 
@@ -114,8 +118,12 @@ class PycordUser:
             "guild_id": self.guild_id,
             "event_channels": self.event_channels,
             "is_jailed": self.is_jailed,
-            "current_event_id": (self.current_event_id if not json_compatible else str(self.current_event_id)),
-            "current_stage_id": (self.current_stage_id if not json_compatible else str(self.current_stage_id)),
+            "current_event_id": (
+                self.current_event_id if not json_compatible else str(self.current_event_id)
+            ),
+            "current_stage_id": (
+                self.current_stage_id if not json_compatible else str(self.current_stage_id)
+            ),
             "registered_event_ids": (
                 self.registered_event_ids
                 if not json_compatible
@@ -129,69 +137,61 @@ class PycordUser:
         }
 
     async def _set(self, cache: Optional[Cache] = None, **kwargs: Any) -> None:
-        """Set attribute data and save it into the database.
-
-        Args:
-            cache (:obj:`Cache`, optional): Cache engine to write the update into
-            **kwargs (Any): Mapping of attribute names and respective values to be set
-        """
-        for key, value in kwargs.items():
-            if not hasattr(self, key):
-                raise AttributeError()
-
-            setattr(self, key, value)
-
-        await self.__collection__.update_one({"_id": self._id}, {"$set": kwargs}, upsert=True)
-
-        self._update_cache(cache)
-
-        logger.info("Set attributes of user %s to %s", self.id, kwargs)
+        await super()._set(cache, **kwargs)
 
     async def _remove(self, *args: str, cache: Optional[Cache] = None) -> None:
-        """Remove attribute data and save it into the database.
-
-        Args:
-            cache (:obj:`Cache`, optional): Cache engine to write the update into
-            *args (str): List of attributes to remove
-        """
-        attributes: Dict[str, Any] = {}
-
-        for key in args:
-            if not hasattr(self, key):
-                raise AttributeError()
-
-            default_value: Any = self.get_default_value(key)
-
-            setattr(self, key, default_value)
-
-            attributes[key] = default_value
-
-        await self.__collection__.update_one({"_id": self._id}, {"$set": attributes}, upsert=True)
-
-        self._update_cache(cache)
-
-        logger.info("Reset attributes %s of user %s to default values", args, self.id)
+        await super()._remove(*args, cache=cache)
 
     def _get_cache_key(self) -> str:
-        return f"{self.__short_name__}_{self.id}"
+        return f"{self.__short_name__}_{self.id}_{self.guild_id}"
 
     def _update_cache(self, cache: Optional[Cache] = None) -> None:
-        if cache is None:
-            return
-
-        user_dict: Dict[str, Any] = self.to_dict()
-
-        if user_dict is not None:
-            cache.set_json(self._get_cache_key(), user_dict)
-        else:
-            self._delete_cache(cache)
+        super()._update_cache(cache)
 
     def _delete_cache(self, cache: Optional[Cache] = None) -> None:
-        if cache is None:
-            return
+        super()._delete_cache(cache)
 
-        cache.delete(self._get_cache_key())
+    @staticmethod
+    def _entry_to_cache(db_entry: Dict[str, Any]) -> Dict[str, Any]:
+        cache_entry: Dict[str, Any] = db_entry.copy()
 
+        cache_entry["_id"] = str(cache_entry["_id"])
+        cache_entry["current_event_id"] = (
+            None if cache_entry["current_event_id"] is None else str(cache_entry["current_event_id"])
+        )
+        cache_entry["current_stage_id"] = (
+            None if cache_entry["current_stage_id"] is None else str(cache_entry["current_stage_id"])
+        )
+        cache_entry["registered_event_ids"] = [
+            str(event_id) for event_id in cache_entry["registered_event_ids"]
+        ]
+        cache_entry["completed_event_ids"] = [
+            str(event_id) for event_id in cache_entry["completed_event_ids"]
+        ]
+
+        return cache_entry
+
+    @staticmethod
+    def _entry_from_cache(cache_entry: Dict[str, Any]) -> Dict[str, Any]:
+        db_entry: Dict[str, Any] = cache_entry.copy()
+
+        db_entry["_id"] = ObjectId(db_entry["_id"])
+        db_entry["current_event_id"] = (
+            None if db_entry["current_event_id"] is None else ObjectId(db_entry["current_event_id"])
+        )
+        db_entry["current_stage_id"] = (
+            None if db_entry["current_stage_id"] is None else ObjectId(db_entry["current_stage_id"])
+        )
+        db_entry["registered_event_ids"] = [
+            ObjectId(event_id) for event_id in db_entry["registered_event_ids"]
+        ]
+        db_entry["completed_event_ids"] = [
+            ObjectId(event_id) for event_id in db_entry["completed_event_ids"]
+        ]
+
+        return db_entry
+
+    # TODO Add documentation
     @staticmethod
     def get_defaults(user_id: Optional[int] = None, guild_id: Optional[int] = None) -> Dict[str, Any]:
         return {
@@ -205,6 +205,7 @@ class PycordUser:
             "completed_event_ids": [],
         }
 
+    # TODO Add documentation
     @staticmethod
     def get_default_value(key: str) -> Any:
         if key not in PycordUser.get_defaults():
@@ -212,24 +213,29 @@ class PycordUser:
 
         return PycordUser.get_defaults()[key]
 
-    async def purge(self, cache: Optional[Cache] = None) -> None:
-        """Completely remove user data from database. Currently only removes the user record from users collection.
+    async def update(
+        self,
+        cache: Optional[Cache] = None,
+        **kwargs: Any,
+    ) -> None:
+        await super().update(cache=cache, **kwargs)
 
-        Args:
-            cache (:obj:`Cache`, optional): Cache engine to write the update into
-        """
-        await self.__collection__.delete_one({"_id": self._id})
-        self._delete_cache(cache)
+    async def reset(
+        self,
+        *args: str,
+        cache: Optional[Cache] = None,
+    ) -> None:
+        await super().reset(*args, cache=cache)
+
+    async def purge(self, cache: Optional[Cache] = None) -> None:
+        await super().purge(cache)
 
     # TODO Add documentation
     async def event_register(self, event_id: str | ObjectId, cache: Optional[Cache] = None) -> None:
         event_id: ObjectId = ObjectId(event_id) if isinstance(event_id, str) else event_id
 
         if event_id in self.registered_event_ids:
-            raise RuntimeError(f"User is already registered for event {event_id}")
-
-            # TODO Add a unique exception
-            # raise UserAlreadyRegisteredForEventError(event_name)
+            raise UserAlreadyRegisteredForEventError(self.id, event_id)
 
         self.registered_event_ids.append(event_id)
 
@@ -240,10 +246,7 @@ class PycordUser:
         event_id: ObjectId = ObjectId(event_id) if isinstance(event_id, str) else event_id
 
         if event_id not in self.registered_event_ids:
-            raise RuntimeError(f"User is not registered for event {event_id}")
-
-            # TODO Add a unique exception
-            # raise UserNotRegisteredForEventError(event_name)
+            raise UserNotRegisteredForEventError(self.id, event_id)
 
         self.registered_event_ids.remove(event_id)
 
@@ -254,44 +257,33 @@ class PycordUser:
         event_id: ObjectId = ObjectId(event_id) if isinstance(event_id, str) else event_id
 
         if event_id in self.completed_event_ids:
-            raise RuntimeError(f"User has already completed event {event_id}")
-
-            # TODO Add a unique exception
-            # raise UserAlreadyCompletedEventError(event_name)
+            raise UserAlreadyCompletedEventError(self.id, event_id)
 
         self.completed_event_ids.append(event_id)
 
         await self._set(cache, completed_event_ids=self.completed_event_ids)
 
+    # TODO Add documentation
     async def setup_event_channel(
         self,
         bot: Bot,
         guild: Guild,
         pycord_guild: "PycordGuild",
         pycord_event: "PycordEvent",
+        ignore_exists: bool = False,
         cache: Optional[Cache] = None,
-    ):
-        if str(pycord_event._id) in self.event_channels.keys():
-            return
+    ) -> TextChannel | None:
+        if not ignore_exists and str(pycord_event._id) in self.event_channels.keys():
+            return None
 
         discord_member: Member | None = guild.get_member(self.id)
         discord_category: GuildChannel | None = bot.get_channel(pycord_guild.category_id)
 
         if discord_member is None:
-            raise RuntimeError(
-                f"Discord guild member with ID {self.id} in guild with ID {guild.id} could not be found!"
-            )
-
-            # TODO Add a unique exception
-            # raise DiscordGuildMemberNotFoundError(self.id, guild.id)
+            raise DiscordGuildMemberNotFoundError(self.id, guild.id)
 
         if discord_category is None:
-            raise RuntimeError(
-                f"Discord category with ID {pycord_guild.category_id} in guild with ID {guild.id} could not be found!"
-            )
-
-            # TODO Add a unique exception
-            # raise DiscordCategoryNotFoundError(pycord_guild.category_id, guild.id)
+            raise DiscordCategoryNotFoundError(pycord_guild.category_id, guild.id)
 
         permission_overwrites: Dict[Role | Member, PermissionOverwrite] = {
             guild.default_role: PermissionOverwrite(
@@ -316,6 +308,46 @@ class PycordUser:
 
         await self.set_event_channel(pycord_event._id, channel.id, cache=cache)
 
+        return channel
+
+    # TODO Add documentation
+    async def fix_event_channel(
+        self,
+        bot: Bot,
+        guild: Guild,
+        pycord_guild: "PycordGuild",
+        pycord_event: "PycordEvent",
+        cache: Optional[Cache] = None,
+    ) -> TextChannel | None:
+        # Configure channel if not set
+        if str(pycord_event._id) not in self.event_channels.keys():
+            return await self.setup_event_channel(bot, guild, pycord_guild, pycord_event, cache=cache)
+
+        discord_member: Member | None = guild.get_member(self.id)
+
+        if discord_member is None:
+            raise DiscordGuildMemberNotFoundError(self.id, guild.id)
+
+        channel: TextChannel = guild.get_channel(self.event_channels[str(pycord_event._id)])
+
+        if channel is None:
+            return await self.setup_event_channel(
+                bot, guild, pycord_guild, pycord_event, ignore_exists=True, cache=cache
+            )
+
+        await channel.set_permissions(
+            discord_member,
+            overwrite=PermissionOverwrite(
+                view_channel=True,
+                send_messages=True,
+                use_application_commands=True,
+            ),
+            reason=f"Updated event channel of {self.id} for event {pycord_event._id}",
+        )
+
+        return channel
+
+    # TODO Add documentation
     async def lock_event_channel(
         self,
         guild: Guild,
@@ -329,20 +361,10 @@ class PycordUser:
         )
 
         if discord_member is None:
-            raise RuntimeError(
-                f"Discord guild member with ID {self.id} in guild with ID {guild.id} could not be found!"
-            )
-
-            # TODO Add a unique exception
-            # raise DiscordGuildMemberNotFoundError(self.id, guild.id)
+            raise DiscordGuildMemberNotFoundError(self.id, guild.id)
 
         if discord_member is None:
-            raise RuntimeError(
-                f"Discord channel with ID {self.event_channels[str(event_id)]} in guild with ID {guild.id} could not be found!"
-            )
-
-            # TODO Add a unique exception
-            # raise DiscordChannelNotFoundError(self.event_channels[str(event_id)], guild.id)
+            raise DiscordChannelNotFoundError(self.event_channels[str(event_id)], guild.id)
 
         permission_overwrite: PermissionOverwrite = PermissionOverwrite(
             view_channel=not completely,
@@ -371,10 +393,20 @@ class PycordUser:
 
     # TODO Add documentation
     async def set_event_stage(self, stage_id: str | ObjectId | None, cache: Optional[Cache] = None) -> None:
-        await self._set(cache, current_stage_id=stage_id if isinstance(stage_id, str) else ObjectId(stage_id))
+        await self._set(
+            cache, current_stage_id=stage_id if isinstance(stage_id, str) else ObjectId(stage_id)
+        )
 
+    # TODO Add documentation
+    async def set_event(self, event_id: str | ObjectId | None, cache: Optional[Cache] = None) -> None:
+        await self._set(
+            cache, current_event_id=event_id if isinstance(event_id, str) else ObjectId(event_id)
+        )
+
+    # TODO Add documentation
     async def jail(self, cache: Optional[Cache] = None) -> None:
         await self._set(cache, is_jailed=True)
 
+    # TODO Add documentation
     async def unjail(self, cache: Optional[Cache] = None) -> None:
         await self._set(cache, is_jailed=False)

cogs/cog_config.py

@@ -1,5 +1,6 @@
 from zoneinfo import ZoneInfo, ZoneInfoNotFoundError
 
+from bson.errors import InvalidId
 from discord import (
     ApplicationContext,
     CategoryChannel,
@@ -12,6 +13,7 @@ from discord.utils import basic_autocomplete
 from libbot.i18n import _, in_every_locale
 
 from classes import PycordGuild
+from classes.errors import GuildNotFoundError
 from classes.pycord_bot import PycordBot
 from modules.utils import autocomplete_timezones, is_operation_confirmed
 
@@ -36,37 +38,75 @@ class CogConfig(Cog):
     @option(
         "category",
         description=_("description", "commands", "config_set", "options", "category"),
-        description_localizations=in_every_locale("description", "commands", "config_set", "options", "category"),
+        description_localizations=in_every_locale(
+            "description", "commands", "config_set", "options", "category"
+        ),
+        required=True,
+    )
+    @option(
+        "general_channel",
+        description=_("description", "commands", "config_set", "options", "general_channel"),
+        description_localizations=in_every_locale(
+            "description", "commands", "config_set", "options", "general_channel"
+        ),
+        required=True,
+    )
+    @option(
+        "management_channel",
+        description=_("description", "commands", "config_set", "options", "management_channel"),
+        description_localizations=in_every_locale(
+            "description", "commands", "config_set", "options", "management_channel"
+        ),
         required=True,
     )
-    @option("channel", description="Text channel for admin notifications", required=True)
     @option(
         "timezone",
         description=_("description", "commands", "config_set", "options", "timezone"),
-        description_localizations=in_every_locale("description", "commands", "config_set", "options", "timezone"),
+        description_localizations=in_every_locale(
+            "description", "commands", "config_set", "options", "timezone"
+        ),
         autocomplete=basic_autocomplete(autocomplete_timezones),
         required=True,
     )
+    @option(
+        "prefer_emojis",
+        description=_("description", "commands", "config_set", "options", "prefer_emojis"),
+        description_localizations=in_every_locale(
+            "description", "commands", "config_set", "options", "prefer_emojis"
+        ),
+        required=True,
+    )
     async def command_config_set(
         self,
         ctx: ApplicationContext,
         category: CategoryChannel,
-        channel: TextChannel,
+        general_channel: TextChannel,
+        management_channel: TextChannel,
         timezone: str,
+        prefer_emojis: bool,
     ) -> None:
-        guild: PycordGuild = await self.bot.find_guild(ctx.guild.id)
+        try:
+            guild: PycordGuild = await self.bot.find_guild(ctx.guild.id)
+        except (InvalidId, GuildNotFoundError):
+            await ctx.respond(self.bot._("unexpected_error", "messages", locale=ctx.locale), ephemeral=True)
+            return
 
         try:
             timezone_parsed: ZoneInfo = ZoneInfo(timezone)
         except ZoneInfoNotFoundError:
-            await ctx.respond(self.bot._("timezone_invalid", "messages", locale=ctx.locale).format(timezone=timezone))
+            await ctx.respond(
+                self.bot._("timezone_invalid", "messages", locale=ctx.locale).format(timezone=timezone),
+                ephemeral=True,
+            )
             return
 
         await guild.update(
             self.bot.cache,
-            channel_id=channel.id,
+            general_channel_id=general_channel.id,
+            management_channel_id=management_channel.id,
             category_id=category.id,
             timezone=str(timezone_parsed),
+            prefer_emojis=prefer_emojis,
         )
 
         await ctx.respond(self.bot._("config_set", "messages", locale=ctx.locale))
@@ -79,14 +119,20 @@ class CogConfig(Cog):
     @option(
         "confirm",
         description=_("description", "commands", "config_reset", "options", "confirm"),
-        description_localizations=in_every_locale("description", "commands", "config_reset", "options", "confirm"),
+        description_localizations=in_every_locale(
+            "description", "commands", "config_reset", "options", "confirm"
+        ),
         required=False,
     )
     async def command_config_reset(self, ctx: ApplicationContext, confirm: bool = False) -> None:
         if not (await is_operation_confirmed(ctx, confirm)):
             return
 
-        guild: PycordGuild = await self.bot.find_guild(ctx.guild.id)
+        try:
+            guild: PycordGuild = await self.bot.find_guild(ctx.guild.id)
+        except (InvalidId, GuildNotFoundError):
+            await ctx.respond(self.bot._("unexpected_error", "messages", locale=ctx.locale), ephemeral=True)
+            return
 
         await guild.purge(self.bot.cache)
 
@@ -98,17 +144,25 @@ class CogConfig(Cog):
         description_localizations=in_every_locale("description", "commands", "config_show"),
     )
     async def command_config_show(self, ctx: ApplicationContext) -> None:
-        guild: PycordGuild = await self.bot.find_guild(ctx.guild.id)
+        try:
+            guild: PycordGuild = await self.bot.find_guild(ctx.guild.id)
+        except (InvalidId, GuildNotFoundError):
+            await ctx.respond(self.bot._("unexpected_error", "messages", locale=ctx.locale), ephemeral=True)
+            return
 
         if not guild.is_configured():
-            await ctx.respond(self.bot._("guild_unconfigured_admin", "messages", locale=ctx.locale))
+            await ctx.respond(
+                self.bot._("guild_unconfigured_admin", "messages", locale=ctx.locale), ephemeral=True
+            )
             return
 
         await ctx.respond(
             self.bot._("config_show", "messages", locale=ctx.locale).format(
-                channel_id=guild.channel_id,
+                general_channel_id=guild.general_channel_id,
+                management_channel_id=guild.management_channel_id,
                 category_id=guild.category_id,
                 timezone=guild.timezone,
+                prefer_emojis=guild.prefer_emojis,
             )
         )
 

cogs/cog_event.py

@@ -11,8 +11,10 @@ from discord import (
 )
 from discord.ext.commands import Cog
 from discord.utils import basic_autocomplete
+from libbot.i18n import _, in_every_locale
 
 from classes import PycordEvent, PycordEventStage, PycordGuild
+from classes.errors import EventNotFoundError, GuildNotFoundError
 from classes.pycord_bot import PycordBot
 from modules.utils import (
     autocomplete_active_events,
@@ -28,18 +30,49 @@ class CogEvent(Cog):
     def __init__(self, bot: PycordBot):
         self.bot: PycordBot = bot
 
-    # TODO Introduce i18n
-    command_group: SlashCommandGroup = SlashCommandGroup("event", "Event management")
+    command_group: SlashCommandGroup = SlashCommandGroup(
+        "event",
+        description=_("description", "commands", "event"),
+        description_localizations=in_every_locale("description", "commands", "event"),
+    )
 
-    # TODO Introduce i18n
     @command_group.command(
         name="create",
-        description="Create new event",
+        description=_("description", "commands", "event_create"),
+        description_localizations=in_every_locale("description", "commands", "event_create"),
+    )
+    @option(
+        "name",
+        description=_("description", "commands", "event_create", "options", "name"),
+        description_localizations=in_every_locale(
+            "description", "commands", "event_create", "options", "name"
+        ),
+        required=True,
+    )
+    @option(
+        "start",
+        description=_("description", "commands", "event_create", "options", "start"),
+        description_localizations=in_every_locale(
+            "description", "commands", "event_create", "options", "start"
+        ),
+        required=True,
+    )
+    @option(
+        "end",
+        description=_("description", "commands", "event_create", "options", "end"),
+        description_localizations=in_every_locale(
+            "description", "commands", "event_create", "options", "end"
+        ),
+        required=True,
+    )
+    @option(
+        "thumbnail",
+        description=_("description", "commands", "event_create", "options", "thumbnail"),
+        description_localizations=in_every_locale(
+            "description", "commands", "event_create", "options", "thumbnail"
+        ),
+        required=False,
     )
-    @option("name", description="Name of the event", required=True)
-    @option("start", description="Date when the event starts (DD.MM.YYYY HH:MM)", required=True)
-    @option("end", description="Date when the event ends (DD.MM.YYYY HH:MM)", required=True)
-    @option("thumbnail", description="Thumbnail of the event", required=False)
     async def command_event_create(
         self,
         ctx: ApplicationContext,
@@ -48,28 +81,31 @@ class CogEvent(Cog):
         end: str,
         thumbnail: Attachment = None,
     ) -> None:
-        guild: PycordGuild = await self.bot.find_guild(ctx.guild.id)
+        try:
+            guild: PycordGuild = await self.bot.find_guild(ctx.guild.id)
+        except (InvalidId, GuildNotFoundError):
+            await ctx.respond(self.bot._("unexpected_error", "messages", locale=ctx.locale), ephemeral=True)
+            return
 
         if not guild.is_configured():
-            await ctx.respond(self.bot._("guild_unconfigured_admin", "messages", locale=ctx.locale))
+            await ctx.respond(
+                self.bot._("guild_unconfigured_admin", "messages", locale=ctx.locale), ephemeral=True
+            )
             return
 
         guild_timezone: ZoneInfo = ZoneInfo(guild.timezone)
 
         try:
-            start_date: datetime = datetime.strptime(start, "%d.%m.%Y %H:%M")
-            end_date: datetime = datetime.strptime(end, "%d.%m.%Y %H:%M")
-
-            start_date = start_date.replace(tzinfo=guild_timezone)
-            end_date = end_date.replace(tzinfo=guild_timezone)
+            start_date: datetime = datetime.strptime(start, "%d.%m.%Y %H:%M").replace(tzinfo=guild_timezone)
+            end_date: datetime = datetime.strptime(end, "%d.%m.%Y %H:%M").replace(tzinfo=guild_timezone)
         except ValueError:
-            # TODO Introduce i18n
             await ctx.respond(
-                "Could not parse start and end dates. Please, make sure these are provided in `DD.MM.YYYY HH:MM` format."
+                self.bot._("event_dates_parsing_failed", "messages", locale=ctx.locale), ephemeral=True
             )
             return
 
-        await validate_event_validity(ctx, name, start_date, end_date, guild_timezone)
+        if not await validate_event_validity(ctx, name, start_date, end_date, to_utc=True):
+            return
 
         processed_media: List[Dict[str, Any]] = (
             [] if thumbnail is None else await self.bot.process_attachments([thumbnail])
@@ -84,26 +120,58 @@ class CogEvent(Cog):
             thumbnail=processed_media[0] if thumbnail else None,
         )
 
-        # TODO Introduce i18n
         await ctx.respond(
-            f"Event **{event.name}** has been created and will take place <t:{get_unix_timestamp(event.starts)}:R>."
+            self.bot._("event_created", "messages", locale=ctx.locale).format(
+                event_name=event.name, start_time=get_unix_timestamp(event.starts, to_utc=True)
+            )
         )
 
-    # TODO Introduce i18n
     @command_group.command(
         name="edit",
-        description="Edit event",
+        description=_("description", "commands", "event_edit"),
+        description_localizations=in_every_locale("description", "commands", "event_edit"),
     )
     @option(
         "event",
-        description="Name of the event",
+        description=_("description", "commands", "event_edit", "options", "event"),
+        description_localizations=in_every_locale(
+            "description", "commands", "event_edit", "options", "event"
+        ),
         autocomplete=basic_autocomplete(autocomplete_active_events),
         required=True,
     )
-    @option("name", description="New name of the event", required=False)
-    @option("start", description="Date when the event starts (DD.MM.YYYY HH:MM)", required=False)
-    @option("end", description="Date when the event ends (DD.MM.YYYY HH:MM)", required=False)
-    @option("thumbnail", description="Thumbnail of the event", required=False)
+    @option(
+        "name",
+        description=_("description", "commands", "event_edit", "options", "name"),
+        description_localizations=in_every_locale(
+            "description", "commands", "event_edit", "options", "name"
+        ),
+        required=False,
+    )
+    @option(
+        "start",
+        description=_("description", "commands", "event_edit", "options", "start"),
+        description_localizations=in_every_locale(
+            "description", "commands", "event_edit", "options", "start"
+        ),
+        required=False,
+    )
+    @option(
+        "end",
+        description=_("description", "commands", "event_edit", "options", "end"),
+        description_localizations=in_every_locale(
+            "description", "commands", "event_edit", "options", "end"
+        ),
+        required=False,
+    )
+    @option(
+        "thumbnail",
+        description=_("description", "commands", "event_edit", "options", "thumbnail"),
+        description_localizations=in_every_locale(
+            "description", "commands", "event_edit", "options", "thumbnail"
+        ),
+        required=False,
+    )
     async def command_event_edit(
         self,
         ctx: ApplicationContext,
@@ -113,40 +181,59 @@ class CogEvent(Cog):
         end: str = None,
         thumbnail: Attachment = None,
     ) -> None:
-        guild: PycordGuild = await self.bot.find_guild(ctx.guild.id)
+        try:
+            guild: PycordGuild = await self.bot.find_guild(ctx.guild.id)
+        except (InvalidId, GuildNotFoundError):
+            await ctx.respond(self.bot._("unexpected_error", "messages", locale=ctx.locale), ephemeral=True)
+            return
 
         try:
             pycord_event: PycordEvent = await self.bot.find_event(event_id=event)
-        except (InvalidId, RuntimeError):
-            # TODO Make a nice message
-            await ctx.respond("Event was not found.")
+        except (InvalidId, EventNotFoundError):
+            await ctx.respond(self.bot._("event_not_found", "messages", locale=ctx.locale), ephemeral=True)
             return
 
         if not guild.is_configured():
-            await ctx.respond(self.bot._("guild_unconfigured_admin", "messages", locale=ctx.locale))
+            await ctx.respond(
+                self.bot._("guild_unconfigured_admin", "messages", locale=ctx.locale), ephemeral=True
+            )
             return
 
         guild_timezone: ZoneInfo = ZoneInfo(guild.timezone)
 
         try:
             start_date: datetime = (
-                pycord_event.starts if start is None else datetime.strptime(start, "%d.%m.%Y %H:%M")
+                pycord_event.starts.replace(tzinfo=ZoneInfo("UTC"))
+                if start is None
+                else datetime.strptime(start, "%d.%m.%Y %H:%M").replace(tzinfo=guild_timezone)
             )
-            start_date = start_date.replace(tzinfo=guild_timezone)
         except ValueError:
-            # TODO Make a nice message
-            await ctx.respond("Could not parse the start date.")
+            await ctx.respond(
+                self.bot._("event_start_date_parsing_failed", "messages", locale=ctx.locale), ephemeral=True
+            )
             return
 
         try:
-            end_date: datetime = pycord_event.ends if end is None else datetime.strptime(end, "%d.%m.%Y %H:%M")
-            end_date = end_date.replace(tzinfo=guild_timezone)
+            end_date: datetime = (
+                pycord_event.ends.replace(tzinfo=ZoneInfo("UTC"))
+                if end is None
+                else datetime.strptime(end, "%d.%m.%Y %H:%M").replace(tzinfo=guild_timezone)
+            )
         except ValueError:
-            # TODO Make a nice message
-            await ctx.respond("Could not parse the end date.")
+            await ctx.respond(
+                self.bot._("event_end_date_parsing_failed", "messages", locale=ctx.locale), ephemeral=True
+            )
             return
 
-        await validate_event_validity(ctx, name, start_date, end_date, guild_timezone)
+        if not await validate_event_validity(
+            ctx,
+            pycord_event.name if name is None else name,
+            start_date,
+            end_date,
+            event_id=pycord_event._id,
+            to_utc=True,
+        ):
+            return
 
         processed_media: List[Dict[str, Any]] = (
             [] if thumbnail is None else await self.bot.process_attachments([thumbnail])
@@ -154,31 +241,43 @@ class CogEvent(Cog):
 
         await pycord_event.update(
             self.bot.cache,
-            starts=start_date,
-            ends=end_date,
+            starts=start_date.astimezone(ZoneInfo("UTC")),
+            ends=end_date.astimezone(ZoneInfo("UTC")),
             name=pycord_event.name if name is None else name,
             thumbnail=pycord_event.thumbnail if thumbnail is None else processed_media[0],
         )
 
         # TODO Notify participants about time changes
 
-        # TODO Make a nice message
         await ctx.respond(
-            f"Event **{pycord_event.name}** has been updated and will take place <t:{get_unix_timestamp(pycord_event.starts)}:R>."
+            self.bot._("event_updated", "messages", locale=ctx.locale).format(
+                event_name=pycord_event.name,
+                start_time=get_unix_timestamp(pycord_event.starts, to_utc=True),
+            )
         )
 
-    # TODO Introduce i18n
     @command_group.command(
         name="cancel",
-        description="Cancel event",
+        description=_("description", "commands", "event_cancel"),
+        description_localizations=in_every_locale("description", "commands", "event_cancel"),
     )
     @option(
         "event",
-        description="Name of the event",
+        description=_("description", "commands", "event_cancel", "options", "event"),
+        description_localizations=in_every_locale(
+            "description", "commands", "event_cancel", "options", "event"
+        ),
         autocomplete=basic_autocomplete(autocomplete_active_events),
         required=True,
     )
-    @option("confirm", description="Confirmation of the operation", required=False)
+    @option(
+        "confirm",
+        description=_("description", "commands", "event_cancel", "options", "confirm"),
+        description_localizations=in_every_locale(
+            "description", "commands", "event_cancel", "options", "confirm"
+        ),
+        required=False,
+    )
     async def command_event_cancel(
         self,
         ctx: ApplicationContext,
@@ -188,17 +287,22 @@ class CogEvent(Cog):
         if not (await is_operation_confirmed(ctx, confirm)):
             return
 
-        guild: PycordGuild = await self.bot.find_guild(ctx.guild.id)
+        try:
+            guild: PycordGuild = await self.bot.find_guild(ctx.guild.id)
+        except (InvalidId, GuildNotFoundError):
+            await ctx.respond(self.bot._("unexpected_error", "messages", locale=ctx.locale), ephemeral=True)
+            return
 
         try:
             pycord_event: PycordEvent = await self.bot.find_event(event_id=event)
-        except (InvalidId, RuntimeError):
-            # TODO Make a nice message
-            await ctx.respond("Event was not found.")
+        except (InvalidId, EventNotFoundError):
+            await ctx.respond(self.bot._("event_not_found", "messages", locale=ctx.locale), ephemeral=True)
             return
 
         if not guild.is_configured():
-            await ctx.respond(self.bot._("guild_unconfigured_admin", "messages", locale=ctx.locale))
+            await ctx.respond(
+                self.bot._("guild_unconfigured_admin", "messages", locale=ctx.locale), ephemeral=True
+            )
             return
 
         start_date: datetime = pycord_event.starts.replace(tzinfo=ZoneInfo("UTC"))
@@ -210,56 +314,75 @@ class CogEvent(Cog):
             or end_date <= datetime.now(tz=ZoneInfo("UTC"))
             or start_date <= datetime.now(tz=ZoneInfo("UTC"))
         ):
-            # TODO Make a nice message
-            await ctx.respond("Finished or ongoing events cannot be cancelled.")
+            await ctx.respond(
+                self.bot._("event_not_editable", "messages", locale=ctx.locale).format(
+                    event_name=pycord_event.name
+                ),
+                ephemeral=True,
+            )
             return
 
         await pycord_event.cancel()
 
         # TODO Notify participants about cancellation
 
-        # TODO Make a nice message
-        await ctx.respond(f"Event **{pycord_event.name}** was cancelled.")
+        await ctx.respond(
+            self.bot._("event_cancelled", "messages", locale=ctx.locale).format(
+                event_name=pycord_event.name
+            )
+        )
 
-    # TODO Introduce i18n
     @command_group.command(
         name="show",
-        description="Show the details about certain event",
+        description=_("description", "commands", "event_show"),
+        description_localizations=in_every_locale("description", "commands", "event_show"),
     )
     @option(
         "event",
-        description="Name of the event",
+        description=_("description", "commands", "event_show", "options", "event"),
+        description_localizations=in_every_locale(
+            "description", "commands", "event_show", "options", "event"
+        ),
         autocomplete=basic_autocomplete(autocomplete_active_events),
         required=True,
     )
     async def command_event_show(self, ctx: ApplicationContext, event: str) -> None:
-        guild: PycordGuild = await self.bot.find_guild(ctx.guild.id)
-
         try:
             pycord_event: PycordEvent = await self.bot.find_event(event_id=event)
-        except (InvalidId, RuntimeError):
-            # TODO Make a nice message
-            await ctx.respond("Event was not found.")
+        except (InvalidId, EventNotFoundError):
+            await ctx.respond(self.bot._("event_not_found", "messages", locale=ctx.locale), ephemeral=True)
             return
 
-        starts_date: datetime = pycord_event.starts.replace(tzinfo=ZoneInfo("UTC"))
-        ends_date: datetime = pycord_event.ends.replace(tzinfo=ZoneInfo("UTC"))
+        starts_date: datetime = pycord_event.get_start_date_utc()
+        ends_date: datetime = pycord_event.get_end_date_utc()
 
         stages: List[PycordEventStage] = await self.bot.get_event_stages(pycord_event)
 
-        # TODO Make a nice message
         stages_string: str = "\n\n".join(
-            f"**Stage {stage.sequence+1}**\nQuestion: {stage.question}\nAnswer: ||{stage.answer}||"
+            self.bot._("stage_entry", "messages", locale=ctx.locale).format(
+                sequence=stage.sequence + 1, answer=stage.answer
+            )
             for stage in stages
         )
 
         # TODO Show users registered for the event
 
-        # TODO Introduce i18n
-        await ctx.respond(
-            f"**Event details**\n\nName: {pycord_event.name}\nStarts: <t:{get_unix_timestamp(starts_date)}>\nEnds: <t:{get_unix_timestamp(ends_date)}>\n\nStages:\n{stages_string}"
+        event_info_string: str = self.bot._("event_details", "messages", locale=ctx.locale).format(
+            event_name=pycord_event.name,
+            start_time=get_unix_timestamp(starts_date),
+            end_time=get_unix_timestamp(ends_date),
+            stages=stages_string,
         )
 
+        chunk_size: int = 2000
+
+        event_info_chunks: List[str] = [
+            event_info_string[i : i + chunk_size] for i in range(0, len(event_info_string), chunk_size)
+        ]
+
+        for chunk in event_info_chunks:
+            await ctx.respond(chunk)
+
 
 def setup(bot: PycordBot) -> None:
     bot.add_cog(CogEvent(bot))

cogs/cog_guess.py

@@ -3,8 +3,14 @@ from typing import List
 from bson import ObjectId
 from bson.errors import InvalidId
 from discord import ApplicationContext, Cog, File, option, slash_command
+from libbot.i18n import _, in_every_locale
 
 from classes import PycordEvent, PycordEventStage, PycordGuild, PycordUser
+from classes.errors import (
+    EventNotFoundError,
+    EventStageNotFoundError,
+    GuildNotFoundError,
+)
 from classes.pycord_bot import PycordBot
 
 
@@ -14,48 +20,58 @@ class CogGuess(Cog):
     def __init__(self, bot: PycordBot):
         self.bot: PycordBot = bot
 
-    # TODO Implement the command
     @slash_command(
         name="guess",
-        description="Propose an answer to the current event stage",
+        description=_("description", "commands", "guess"),
+        description_localizations=in_every_locale("description", "commands", "guess"),
+    )
+    @option(
+        "answer",
+        description=_("description", "commands", "guess", "options", "answer"),
+        description_localizations=in_every_locale("description", "commands", "guess", "options", "answer"),
     )
-    @option("answer", description="An answer to the current stage")
     async def command_guess(self, ctx: ApplicationContext, answer: str) -> None:
-        guild: PycordGuild = await self.bot.find_guild(ctx.guild.id)
+        try:
+            guild: PycordGuild = await self.bot.find_guild(ctx.guild.id)
+        except (InvalidId, GuildNotFoundError):
+            await ctx.respond(self.bot._("unexpected_error", "messages", locale=ctx.locale), ephemeral=True)
+            return
 
         if not guild.is_configured():
-            await ctx.respond(self.bot._("guild_unconfigured", "messages", locale=ctx.locale))
+            await ctx.respond(
+                self.bot._("guild_unconfigured", "messages", locale=ctx.locale), ephemeral=True
+            )
             return
 
         user: PycordUser = await self.bot.find_user(ctx.author, ctx.guild)
 
         if user.is_jailed:
-            # TODO Make a nice message
-            await ctx.respond("You are jailed and cannot interact with events. Please, contact the administrator.")
+            await ctx.respond(self.bot._("jailed_error", "messages", locale=ctx.locale))
             return
 
         if user.current_event_id is None or user.current_stage_id is None:
-            # TODO Make a nice message
-            await ctx.respond("You have no ongoing events.")
+            await ctx.respond(self.bot._("guess_unregistered", "messages", locale=ctx.locale))
             return
 
         try:
             event: PycordEvent = await self.bot.find_event(event_id=user.current_event_id)
             stage: PycordEventStage = await self.bot.find_event_stage(user.current_stage_id)
-        except (InvalidId, RuntimeError):
-            # TODO Make a nice message
-            await ctx.respond("Your event could not be found. Please, report this issue to the event's management.")
+        except (InvalidId, EventNotFoundError, EventStageNotFoundError):
+            await ctx.respond(self.bot._("guess_incorrect_event", "messages", locale=ctx.locale))
             return
 
         if ctx.channel_id != user.event_channels[str(event._id)]:
-            # TODO Make a nice message
-            await ctx.respond("Usage outside own event channel is not allowed.", ephemeral=True)
+            await ctx.respond(
+                self.bot._("guess_incorrect_channel", "messages", locale=ctx.locale), ephemeral=True
+            )
             return
 
         if answer.lower() != stage.answer.lower():
-            # TODO Make a nice message
-            # await ctx.respond("Provided answer is wrong.")
-            await ctx.respond(self.bot.config["emojis"]["guess_wrong"])
+            await ctx.respond(
+                self.bot.config["emojis"]["guess_wrong"]
+                if guild.prefer_emojis
+                else self.bot._("guess_incorrect", "messages", locale=ctx.locale)
+            )
             return
 
         next_stage_index = stage.sequence + 1
@@ -64,7 +80,6 @@ class CogGuess(Cog):
         )
 
         if next_stage_id is None:
-            # TODO Make a nice message
             user.completed_event_ids.append(event._id)
 
             await user._set(
@@ -74,30 +89,39 @@ class CogGuess(Cog):
                 completed_event_ids=user.completed_event_ids,
             )
 
-            await ctx.respond("Congratulations! You have completed the event!")
+            await ctx.respond(self.bot._("guess_completed_event", "messages", locale=ctx.locale))
 
             await self.bot.notify_admins(
                 ctx.guild,
                 guild,
-                f"User **{ctx.author.display_name}** ({ctx.author.mention}) has completed the event",
+                self.bot._("admin_user_completed_event", "messages", locale=ctx.locale).format(
+                    display_name=ctx.author.display_name, mention=ctx.author.mention, event_name=event.name
+                ),
             )
+
             return
 
         next_stage: PycordEventStage = await self.bot.find_event_stage(next_stage_id)
 
         files: List[File] | None = next_stage.get_media_files()
 
-        await ctx.respond(
-            f"Provided answer is correct! Next stage...\n\n{next_stage.question}",
-            files=files,
-        )
+        next_question_chunks: List[str] = next_stage.get_question_chunked(2000)
+        next_question_chunks_length: int = len(next_question_chunks)
+
+        for index, chunk in enumerate(next_question_chunks):
+            await ctx.respond(chunk, files=None if index != next_question_chunks_length - 1 else files)
 
         await user.set_event_stage(next_stage._id, cache=self.bot.cache)
 
         await self.bot.notify_admins(
             ctx.guild,
             guild,
-            f"User **{ctx.author.display_name}** ({ctx.author.mention}) has completed the stage {stage.sequence+1} of the event **{event.name}**.",
+            self.bot._("admin_user_completed_stage", "messages", locale=ctx.locale).format(
+                display_name=ctx.author.display_name,
+                mention=ctx.author.mention,
+                stage_sequence=stage.sequence + 1,
+                event_name=event.name,
+            ),
         )
 
 

cogs/cog_register.py

@@ -1,10 +1,19 @@
-from bson.errors import InvalidId
-from discord import ApplicationContext, Cog, option, slash_command
-from discord.utils import basic_autocomplete
+from datetime import datetime
+from logging import Logger
+from pathlib import Path
+from zoneinfo import ZoneInfo
 
-from classes import PycordEvent, PycordGuild, PycordUser
+from bson.errors import InvalidId
+from discord import ApplicationContext, Cog, File, TextChannel, option, slash_command
+from discord.utils import basic_autocomplete
+from libbot.i18n import _, in_every_locale
+
+from classes import PycordEvent, PycordEventStage, PycordGuild, PycordUser
+from classes.errors import EventNotFoundError, GuildNotFoundError
 from classes.pycord_bot import PycordBot
-from modules.utils import autocomplete_active_events, get_unix_timestamp
+from modules.utils import autocomplete_active_events, get_logger, get_unix_timestamp
+
+logger: Logger = get_logger(__name__)
 
 
 class CogRegister(Cog):
@@ -13,49 +22,115 @@ class CogRegister(Cog):
     def __init__(self, bot: PycordBot):
         self.bot: PycordBot = bot
 
-    # TODO Introduce i18n
     @slash_command(
         name="register",
-        description="Enter the selected event",
+        description=_("description", "commands", "register"),
+        description_localizations=in_every_locale("description", "commands", "register"),
     )
     @option(
         "event",
-        description="Name of the event",
+        description=_("description", "commands", "register", "options", "event"),
+        description_localizations=in_every_locale(
+            "description", "commands", "register", "options", "event"
+        ),
         autocomplete=basic_autocomplete(autocomplete_active_events),
     )
     async def command_register(self, ctx: ApplicationContext, event: str) -> None:
-        guild: PycordGuild = await self.bot.find_guild(ctx.guild.id)
+        try:
+            guild: PycordGuild = await self.bot.find_guild(ctx.guild.id)
+        except (InvalidId, GuildNotFoundError):
+            await ctx.respond(self.bot._("unexpected_error", "messages", locale=ctx.locale), ephemeral=True)
+            return
 
         try:
             pycord_event: PycordEvent = await self.bot.find_event(event_id=event)
-        except (InvalidId, RuntimeError):
-            # TODO Make a nice message
-            await ctx.respond("Event was not found.")
+        except (InvalidId, EventNotFoundError):
+            await ctx.respond(self.bot._("event_not_found", "messages", locale=ctx.locale), ephemeral=True)
             return
 
         if not guild.is_configured():
-            await ctx.respond(self.bot._("guild_unconfigured", "messages", locale=ctx.locale))
+            await ctx.respond(
+                self.bot._("guild_unconfigured", "messages", locale=ctx.locale), ephemeral=True
+            )
             return
 
         user: PycordUser = await self.bot.find_user(ctx.author, ctx.guild)
 
         if user.is_jailed:
-            # TODO Make a nice message
-            await ctx.respond("You are jailed and cannot interact with events. Please, contact the administrator.")
+            await ctx.respond(self.bot._("jailed_error", "messages", locale=ctx.locale), ephemeral=True)
             return
 
         if pycord_event._id in user.registered_event_ids:
-            # TODO Make a nice message
-            await ctx.respond("You are already registered for this event.")
+            await ctx.respond(
+                self.bot._("register_already_registered", "messages", locale=ctx.locale), ephemeral=True
+            )
             return
 
         await user.event_register(pycord_event._id, cache=self.bot.cache)
 
-        # TODO Make a nice message
-        await ctx.respond(
-            f"You are now registered for the event **{pycord_event.name}**.\n\nNew channel will be created for you and further instructions will be provided as soon as the event starts <t:{get_unix_timestamp(pycord_event.starts)}:R>. Good luck!"
+        event_ongoing: bool = pycord_event.starts.replace(tzinfo=ZoneInfo("UTC")) < datetime.now(
+            tz=ZoneInfo("UTC")
         )
 
+        registered_message: str = (
+            self.bot._("register_success_ongoing", "messages", locale=ctx.locale).format(
+                event_name=pycord_event.name
+            )
+            if event_ongoing
+            else self.bot._("register_success_scheduled", "messages", locale=ctx.locale).format(
+                event_name=pycord_event.name,
+                event_starts=get_unix_timestamp(pycord_event.starts, to_utc=True),
+            )
+        )
+
+        await ctx.respond(registered_message)
+
+        if event_ongoing:
+            await user.set_event(pycord_event._id, cache=self.bot.cache)
+
+            user_channel: TextChannel = await user.setup_event_channel(
+                self.bot, ctx.guild, guild, pycord_event, cache=self.bot.cache
+            )
+
+            if user_channel is None:
+                logger.error(
+                    "Event channel was not created for user %s from guild %s and event %s after registration.",
+                    ctx.author.id,
+                    guild.id,
+                    pycord_event._id,
+                )
+
+                await self.bot.notify_admins(
+                    ctx.guild,
+                    guild,
+                    self.bot._("admin_user_channel_creation_failed", "messages", locale=ctx.locale).format(
+                        display_name=ctx.author.display_name,
+                        mention=ctx.author.mention,
+                        event_name=pycord_event.name,
+                    ),
+                )
+
+                return
+
+            thumbnail: File | None = (
+                None
+                if pycord_event.thumbnail is None
+                else File(Path(f"data/{pycord_event.thumbnail['id']}"), pycord_event.thumbnail["filename"])
+            )
+
+            await user_channel.send(
+                self.bot._("notice_event_already_started", "messages", locale=ctx.locale).format(
+                    event_name=pycord_event.name
+                ),
+                file=thumbnail,
+            )
+
+            first_stage: PycordEventStage = await self.bot.find_event_stage(pycord_event.stage_ids[0])
+
+            await user.set_event_stage(first_stage._id, cache=self.bot.cache)
+
+            await self.bot.send_stage_question(user_channel, pycord_event, first_stage)
+
 
 def setup(bot: PycordBot) -> None:
     bot.add_cog(CogRegister(bot))

cogs/cog_stage.py

@@ -4,8 +4,14 @@ from bson.errors import InvalidId
 from discord import ApplicationContext, Attachment, SlashCommandGroup, option
 from discord.ext.commands import Cog
 from discord.utils import basic_autocomplete
+from libbot.i18n import _, in_every_locale
 
 from classes import PycordEvent, PycordEventStage, PycordGuild
+from classes.errors import (
+    EventNotFoundError,
+    EventStageNotFoundError,
+    GuildNotFoundError,
+)
 from classes.pycord_bot import PycordBot
 from modules.utils import (
     autocomplete_active_events,
@@ -21,23 +27,52 @@ class CogStage(Cog):
     def __init__(self, bot: PycordBot):
         self.bot: PycordBot = bot
 
-    command_group: SlashCommandGroup = SlashCommandGroup("stage", "Event stage management")
+    command_group: SlashCommandGroup = SlashCommandGroup(
+        "stage",
+        description=_("description", "commands", "stage"),
+        description_localizations=in_every_locale("description", "commands", "stage"),
+    )
 
-    # TODO Introduce i18n
     # TODO Maybe add an option for order?
     @command_group.command(
         name="add",
-        description="Add new event stage",
+        description=_("description", "commands", "stage_add"),
+        description_localizations=in_every_locale("description", "commands", "stage_add"),
     )
     @option(
         "event",
-        description="Name of the event",
+        description=_("description", "commands", "stage_add", "options", "event"),
+        description_localizations=in_every_locale(
+            "description", "commands", "stage_add", "options", "event"
+        ),
         autocomplete=basic_autocomplete(autocomplete_active_events),
         required=True,
     )
-    @option("question", description="Question to be answered", required=True)
-    @option("answer", description="Answer to the stage's question", required=True)
-    @option("media", description="Media file to be attached", required=False)
+    @option(
+        "question",
+        description=_("description", "commands", "stage_add", "options", "question"),
+        description_localizations=in_every_locale(
+            "description", "commands", "stage_add", "options", "question"
+        ),
+        required=True,
+    )
+    @option(
+        "answer",
+        description=_("description", "commands", "stage_add", "options", "answer"),
+        description_localizations=in_every_locale(
+            "description", "commands", "stage_add", "options", "answer"
+        ),
+        max_length=500,
+        required=True,
+    )
+    @option(
+        "media",
+        description=_("description", "commands", "stage_add", "options", "media"),
+        description_localizations=in_every_locale(
+            "description", "commands", "stage_add", "options", "media"
+        ),
+        required=False,
+    )
     async def command_stage_add(
         self,
         ctx: ApplicationContext,
@@ -46,23 +81,30 @@ class CogStage(Cog):
         answer: str,
         media: Attachment = None,
     ) -> None:
-        guild: PycordGuild = await self.bot.find_guild(ctx.guild.id)
+        try:
+            guild: PycordGuild = await self.bot.find_guild(ctx.guild.id)
+        except (InvalidId, GuildNotFoundError):
+            await ctx.respond(self.bot._("unexpected_error", "messages", locale=ctx.locale), ephemeral=True)
+            return
 
         if not guild.is_configured():
-            await ctx.respond(self.bot._("guild_unconfigured_admin", "messages", locale=ctx.locale))
+            await ctx.respond(
+                self.bot._("guild_unconfigured_admin", "messages", locale=ctx.locale), ephemeral=True
+            )
             return
 
         try:
             pycord_event: PycordEvent = await self.bot.find_event(event_id=event)
-        except (InvalidId, RuntimeError):
-            # TODO Make a nice message
-            await ctx.respond("Event was not found.")
+        except (InvalidId, EventStageNotFoundError):
+            await ctx.respond(self.bot._("event_not_found", "messages", locale=ctx.locale), ephemeral=True)
             return
 
         if not (await is_event_status_valid(ctx, pycord_event)):
             return
 
-        processed_media: List[Dict[str, Any]] = [] if media is None else await self.bot.process_attachments([media])
+        processed_media: List[Dict[str, Any]] = (
+            [] if media is None else await self.bot.process_attachments([media])
+        )
 
         event_stage: PycordEventStage = await self.bot.create_event_stage(
             event=pycord_event,
@@ -75,33 +117,73 @@ class CogStage(Cog):
             media=[] if media is None else processed_media,
         )
 
-        # TODO Make a nice message
-        await ctx.respond("Event stage has been created.")
+        await ctx.respond(self.bot._("stage_created", "messages", locale=ctx.locale))
 
-    # TODO Implement the command
-    #   /stage edit <event> <stage> <order> <question> <answer> <media>
     @command_group.command(
         name="edit",
-        description="Edit the event stage",
+        description=_("description", "commands", "stage_edit"),
+        description_localizations=in_every_locale("description", "commands", "stage_edit"),
     )
     @option(
         "event",
-        description="Name of the event",
+        description=_("description", "commands", "stage_edit", "options", "event"),
+        description_localizations=in_every_locale(
+            "description", "commands", "stage_edit", "options", "event"
+        ),
         autocomplete=basic_autocomplete(autocomplete_active_events),
         required=True,
     )
-    # TODO Add autofill
     @option(
         "stage",
-        description="Stage to edit",
+        description=_("description", "commands", "stage_edit", "options", "stage"),
+        description_localizations=in_every_locale(
+            "description", "commands", "stage_edit", "options", "stage"
+        ),
         autocomplete=basic_autocomplete(autocomplete_event_stages),
         required=True,
     )
-    @option("order", description="Number in the event stages' order", min_value=1, required=False)
-    @option("question", description="Question to be answered", required=False)
-    @option("answer", description="Answer to the stage's question", required=False)
-    @option("media", description="Media file to be attached", required=False)
-    @option("remove_media", description="Remove attached media", required=False)
+    @option(
+        "order",
+        description=_("description", "commands", "stage_edit", "options", "order"),
+        description_localizations=in_every_locale(
+            "description", "commands", "stage_edit", "options", "order"
+        ),
+        min_value=1,
+        required=False,
+    )
+    @option(
+        "question",
+        description=_("description", "commands", "stage_edit", "options", "question"),
+        description_localizations=in_every_locale(
+            "description", "commands", "stage_edit", "options", "question"
+        ),
+        required=False,
+    )
+    @option(
+        "answer",
+        description=_("description", "commands", "stage_edit", "options", "answer"),
+        description_localizations=in_every_locale(
+            "description", "commands", "stage_edit", "options", "answer"
+        ),
+        max_length=500,
+        required=False,
+    )
+    @option(
+        "media",
+        description=_("description", "commands", "stage_edit", "options", "media"),
+        description_localizations=in_every_locale(
+            "description", "commands", "stage_edit", "options", "media"
+        ),
+        required=False,
+    )
+    @option(
+        "remove_media",
+        description=_("description", "commands", "stage_edit", "options", "remove_media"),
+        description_localizations=in_every_locale(
+            "description", "commands", "stage_edit", "options", "remove_media"
+        ),
+        required=False,
+    )
     async def command_stage_edit(
         self,
         ctx: ApplicationContext,
@@ -113,17 +195,22 @@ class CogStage(Cog):
         media: Attachment = None,
         remove_media: bool = False,
     ) -> None:
-        guild: PycordGuild = await self.bot.find_guild(ctx.guild.id)
+        try:
+            guild: PycordGuild = await self.bot.find_guild(ctx.guild.id)
+        except (InvalidId, GuildNotFoundError):
+            await ctx.respond(self.bot._("unexpected_error", "messages", locale=ctx.locale), ephemeral=True)
+            return
 
         if not guild.is_configured():
-            await ctx.respond(self.bot._("guild_unconfigured_admin", "messages", locale=ctx.locale))
+            await ctx.respond(
+                self.bot._("guild_unconfigured_admin", "messages", locale=ctx.locale), ephemeral=True
+            )
             return
 
         try:
             pycord_event: PycordEvent = await self.bot.find_event(event_id=event)
-        except (InvalidId, RuntimeError):
-            # TODO Make a nice message
-            await ctx.respond("Event was not found.")
+        except (InvalidId, EventNotFoundError):
+            await ctx.respond(self.bot._("event_not_found", "messages", locale=ctx.locale), ephemeral=True)
             return
 
         if not (await is_event_status_valid(ctx, pycord_event)):
@@ -131,17 +218,19 @@ class CogStage(Cog):
 
         try:
             event_stage: PycordEventStage = await self.bot.find_event_stage(stage)
-        except (InvalidId, RuntimeError):
-            # TODO Make a nice message
-            await ctx.respond("Event stage was not found.")
+        except (InvalidId, EventStageNotFoundError):
+            await ctx.respond(self.bot._("stage_not_found", "messages", locale=ctx.locale), ephemeral=True)
             return
 
         if order is not None and order > len(pycord_event.stage_ids):
-            # TODO Make a nice message
-            await ctx.respond("Stage sequence out of range.")
+            await ctx.respond(
+                self.bot._("stage_sequence_out_of_range", "messages", locale=ctx.locale), ephemeral=True
+            )
             return
 
-        processed_media: List[Dict[str, Any]] = [] if media is None else await self.bot.process_attachments([media])
+        processed_media: List[Dict[str, Any]] = (
+            [] if media is None else await self.bot.process_attachments([media])
+        )
 
         if not (question is None and answer is None and media is None and remove_media is False):
             await event_stage.update(
@@ -153,44 +242,61 @@ class CogStage(Cog):
         if order is not None and order - 1 != event_stage.sequence:
             await pycord_event.reorder_stage(self.bot, event_stage._id, order - 1, cache=self.bot.cache)
 
-        await ctx.respond("Event stage has been updated.")
+        await ctx.respond(self.bot._("stage_updated", "messages", locale=ctx.locale))
 
-    # TODO Implement the command
-    #   /stage delete <event> <stage> <confirm>
     @command_group.command(
         name="delete",
-        description="Delete the event stage",
+        description=_("description", "commands", "stage_delete"),
+        description_localizations=in_every_locale("description", "commands", "stage_delete"),
     )
     @option(
         "event",
-        description="Name of the event",
+        description=_("description", "commands", "stage_delete", "options", "event"),
+        description_localizations=in_every_locale(
+            "description", "commands", "stage_delete", "options", "event"
+        ),
         autocomplete=basic_autocomplete(autocomplete_active_events),
         required=True,
     )
     @option(
         "stage",
-        description="Stage to delete",
+        description=_("description", "commands", "stage_delete", "options", "stage"),
+        description_localizations=in_every_locale(
+            "description", "commands", "stage_delete", "options", "stage"
+        ),
         autocomplete=basic_autocomplete(autocomplete_event_stages),
         required=True,
     )
-    @option("confirm", description="Confirmation of the operation", required=False)
+    @option(
+        "confirm",
+        description=_("description", "commands", "stage_delete", "options", "confirm"),
+        description_localizations=in_every_locale(
+            "description", "commands", "stage_delete", "options", "confirm"
+        ),
+        required=False,
+    )
     async def command_stage_delete(
         self, ctx: ApplicationContext, event: str, stage: str, confirm: bool = False
     ) -> None:
         if not (await is_operation_confirmed(ctx, confirm)):
             return
 
-        guild: PycordGuild = await self.bot.find_guild(ctx.guild.id)
+        try:
+            guild: PycordGuild = await self.bot.find_guild(ctx.guild.id)
+        except (InvalidId, GuildNotFoundError):
+            await ctx.respond(self.bot._("unexpected_error", "messages", locale=ctx.locale), ephemeral=True)
+            return
 
         if not guild.is_configured():
-            await ctx.respond(self.bot._("guild_unconfigured_admin", "messages", locale=ctx.locale))
+            await ctx.respond(
+                self.bot._("guild_unconfigured_admin", "messages", locale=ctx.locale), ephemeral=True
+            )
             return
 
         try:
             pycord_event: PycordEvent = await self.bot.find_event(event_id=event)
-        except (InvalidId, RuntimeError):
-            # TODO Make a nice message
-            await ctx.respond("Event was not found.")
+        except (InvalidId, EventNotFoundError):
+            await ctx.respond(self.bot._("event_not_found", "messages", locale=ctx.locale), ephemeral=True)
             return
 
         if not (await is_event_status_valid(ctx, pycord_event)):
@@ -198,16 +304,14 @@ class CogStage(Cog):
 
         try:
             event_stage: PycordEventStage = await self.bot.find_event_stage(stage)
-        except (InvalidId, RuntimeError):
-            # TODO Make a nice message
-            await ctx.respond("Event stage was not found.")
+        except (InvalidId, EventStageNotFoundError):
+            await ctx.respond(self.bot._("stage_not_found", "messages", locale=ctx.locale), ephemeral=True)
             return
 
         await pycord_event.remove_stage(self.bot, event_stage._id, cache=self.bot.cache)
         await event_stage.purge(cache=self.bot.cache)
 
-        # TODO Make a nice message
-        await ctx.respond("Okay.")
+        await ctx.respond(self.bot._("stage_deleted", "messages", locale=ctx.locale))
 
 
 def setup(bot: PycordBot) -> None:

cogs/cog_status.py

@@ -0,0 +1,42 @@
+from discord import ApplicationContext, Cog, slash_command
+from libbot.i18n import _, in_every_locale
+
+from classes.pycord_bot import PycordBot
+from modules.utils import get_current_commit, get_unix_timestamp
+
+
+class CogStatus(Cog):
+    """Cog with the status command."""
+
+    def __init__(self, bot: PycordBot):
+        self.bot: PycordBot = bot
+
+    @slash_command(
+        name="status",
+        description=_("description", "commands", "status"),
+        description_localizations=in_every_locale("description", "commands", "status"),
+    )
+    async def command_status(self, ctx: ApplicationContext) -> None:
+        current_commit: str | None = await get_current_commit()
+
+        if current_commit is None:
+            await ctx.respond(
+                self.bot._("status", "messages", locale=ctx.locale).format(
+                    version=self.bot.__version__,
+                    start_time=get_unix_timestamp(self.bot.started),
+                )
+            )
+
+            return
+
+        await ctx.respond(
+            self.bot._("status_git", "messages", locale=ctx.locale).format(
+                version=self.bot.__version__,
+                commit=current_commit if len(current_commit) < 10 else current_commit[:10],
+                start_time=get_unix_timestamp(self.bot.started),
+            )
+        )
+
+
+def setup(bot: PycordBot) -> None:
+    bot.add_cog(CogStatus(bot))

cogs/cog_unregister.py

@@ -1,8 +1,10 @@
 from bson.errors import InvalidId
 from discord import ApplicationContext, Cog, option, slash_command
 from discord.utils import basic_autocomplete
+from libbot.i18n import _, in_every_locale
 
 from classes import PycordEvent, PycordGuild, PycordUser
+from classes.errors import EventNotFoundError, GuildNotFoundError
 from classes.pycord_bot import PycordBot
 from modules.utils import autocomplete_user_registered_events, is_operation_confirmed
 
@@ -13,51 +15,66 @@ class CogUnregister(Cog):
     def __init__(self, bot: PycordBot):
         self.bot: PycordBot = bot
 
-    # TODO Introduce i18n
     @slash_command(
         name="unregister",
-        description="Leave the selected event",
+        description=_("description", "commands", "unregister"),
+        description_localizations=in_every_locale("description", "commands", "unregister"),
     )
     @option(
         "event",
-        description="Name of the event",
+        description=_("description", "commands", "unregister", "options", "event"),
+        description_localizations=in_every_locale(
+            "description", "commands", "unregister", "options", "event"
+        ),
         autocomplete=basic_autocomplete(autocomplete_user_registered_events),
     )
-    @option("confirm", description="Confirmation of the operation", required=False)
+    @option(
+        "confirm",
+        description=_("description", "commands", "unregister", "options", "confirm"),
+        description_localizations=in_every_locale(
+            "description", "commands", "unregister", "options", "confirm"
+        ),
+        required=False,
+    )
     async def command_unregister(self, ctx: ApplicationContext, event: str, confirm: bool = False) -> None:
         if not (await is_operation_confirmed(ctx, confirm)):
             return
 
-        guild: PycordGuild = await self.bot.find_guild(ctx.guild.id)
+        try:
+            guild: PycordGuild = await self.bot.find_guild(ctx.guild.id)
+        except (InvalidId, GuildNotFoundError):
+            await ctx.respond(self.bot._("unexpected_error", "messages", locale=ctx.locale), ephemeral=True)
+            return
 
         try:
             pycord_event: PycordEvent = await self.bot.find_event(event_id=event)
-        except (InvalidId, RuntimeError):
-            # TODO Make a nice message
-            await ctx.respond("Event was not found.")
+        except (InvalidId, EventNotFoundError):
+            await ctx.respond(self.bot._("event_not_found", "messages", locale=ctx.locale), ephemeral=True)
             return
 
         if not guild.is_configured():
-            await ctx.respond(self.bot._("guild_unconfigured", "messages", locale=ctx.locale))
+            await ctx.respond(
+                self.bot._("guild_unconfigured", "messages", locale=ctx.locale), ephemeral=True
+            )
             return
 
         user: PycordUser = await self.bot.find_user(ctx.author, ctx.guild)
 
         if user.is_jailed:
-            # TODO Make a nice message
-            await ctx.respond("You are jailed and cannot interact with events. Please, contact the administrator.")
+            await ctx.respond(self.bot._("jailed_error", "messages", locale=ctx.locale), ephemeral=True)
             return
 
         if pycord_event._id not in user.registered_event_ids:
-            # TODO Make a nice message
-            await ctx.respond("You are not registered for this event.")
+            await ctx.respond(
+                self.bot._("unregister_not_registered", "messages", locale=ctx.locale), ephemeral=True
+            )
             return
 
         await user.event_unregister(pycord_event._id, cache=self.bot.cache)
 
         # TODO Text channel must be locked and updated
 
-        await ctx.respond("Ok.")
+        await ctx.respond(self.bot._("unregister_unregistered", "messages", locale=ctx.locale))
 
 
 def setup(bot: PycordBot) -> None:

cogs/cog_user.py

@@ -1,14 +1,29 @@
+from datetime import datetime
+from logging import Logger
+from pathlib import Path
+from typing import Any, Dict, List
+from zoneinfo import ZoneInfo
+
+from bson import ObjectId
+from bson.errors import InvalidId
 from discord import (
     ApplicationContext,
+    File,
     SlashCommandGroup,
+    TextChannel,
     User,
     option,
 )
 from discord.ext.commands import Cog
+from libbot.i18n import _, in_every_locale
 
-from classes import PycordUser
+from classes import PycordEvent, PycordGuild, PycordUser
+from classes.errors import GuildNotFoundError
 from classes.pycord_bot import PycordBot
-from modules.utils import is_operation_confirmed
+from modules.database import col_users
+from modules.utils import get_logger, get_utc_now, is_operation_confirmed
+
+logger: Logger = get_logger(__name__)
 
 
 class CogUser(Cog):
@@ -17,56 +32,171 @@ class CogUser(Cog):
     def __init__(self, bot: PycordBot):
         self.bot: PycordBot = bot
 
-    # TODO Introduce i18n
-    command_group: SlashCommandGroup = SlashCommandGroup("user", "User management")
+    command_group: SlashCommandGroup = SlashCommandGroup(
+        "user",
+        description=_("description", "commands", "user"),
+        description_localizations=in_every_locale("description", "commands", "user"),
+    )
 
-    # TODO Implement the command
     @command_group.command(
-        name="create_channel",
-        description="Create channel for the user",
+        name="update_channels",
+        description=_("description", "commands", "user_update_channels"),
+        description_localizations=in_every_locale("description", "commands", "user_update_channels"),
     )
     @option(
         "user",
-        description="Selected user",
+        description=_("description", "commands", "user_update_channels", "options", "user"),
+        description_localizations=in_every_locale(
+            "description", "commands", "user_update_channels", "options", "user"
+        ),
     )
-    async def command_user_create_channel(self, ctx: ApplicationContext, user: User) -> None:
-        await ctx.respond("Not implemented.")
+    async def command_user_update_channels(self, ctx: ApplicationContext, user: User) -> None:
+        try:
+            guild: PycordGuild = await self.bot.find_guild(ctx.guild.id)
+        except (InvalidId, GuildNotFoundError):
+            await ctx.respond(self.bot._("unexpected_error", "messages", locale=ctx.locale), ephemeral=True)
+            return
+
+        pycord_user: PycordUser = await self.bot.find_user(user.id, ctx.guild.id)
+        events: List[PycordEvent] = []
+
+        utc_now: datetime = get_utc_now()
+
+        pipeline: List[Dict[str, Any]] = [
+            {"$match": {"id": pycord_user.id}},
+            {
+                "$lookup": {
+                    "from": "events",
+                    "let": {"event_ids": "$registered_event_ids"},
+                    "pipeline": [
+                        {
+                            "$match": {
+                                "$expr": {
+                                    "$and": [
+                                        {"$in": ["$_id", "$$event_ids"]},
+                                        {"$eq": ["$ended", None]},
+                                        {"$gt": ["$ends", utc_now]},
+                                        {"$lt": ["$starts", utc_now]},
+                                        {"$eq": ["$is_cancelled", False]},
+                                    ]
+                                }
+                            }
+                        }
+                    ],
+                    "as": "registered_events",
+                }
+            },
+            {"$match": {"registered_events.0": {"$exists": True}}},
+        ]
+
+        async with await col_users.aggregate(pipeline) as cursor:
+            async for result in cursor:
+                for registered_event in result["registered_events"]:
+                    events.append(PycordEvent(**registered_event))
+
+        for event in events:
+            if pycord_user.current_event_id is not None and pycord_user.current_event_id != event._id:
+                continue
+
+            if pycord_user.current_event_id is None:
+                await pycord_user.set_event(event._id, cache=self.bot.cache)
+
+            channel: TextChannel | None = await pycord_user.fix_event_channel(
+                self.bot, ctx.guild, guild, event, cache=self.bot.cache
+            )
+
+            try:
+                await self.bot.notify_admins(
+                    ctx.guild,
+                    guild,
+                    self.bot._("admin_user_channel_fixed", "messages", locale=ctx.locale).format(
+                        display_name=user.display_name, mention=user.mention, event_name=event.name
+                    ),
+                )
+            except Exception as exc:
+                logger.error(
+                    "Could not notify admins that user %s got their event channel for %s fixed due to: %s",
+                    user.id,
+                    event._id,
+                    exc,
+                    exc_info=exc,
+                )
+
+            if channel is None:
+                continue
+
+            thumbnail: File | None = (
+                None
+                if event.thumbnail is None
+                else File(Path(f"data/{event.thumbnail['id']}"), event.thumbnail["filename"])
+            )
+
+            await channel.send(
+                self.bot._("notice_event_already_started", "messages").format(event_name=event.name),
+                file=thumbnail,
+            )
+
+            stage_id: ObjectId = (
+                event.stage_ids[0] if pycord_user.current_stage_id is None else pycord_user.current_stage_id
+            )
+
+            await pycord_user.set_event_stage(stage_id, cache=self.bot.cache)
+
+            await self.bot.send_stage_question(channel, event, await self.bot.find_event_stage(stage_id))
+
+        await ctx.respond(
+            self.bot._("user_channels_updated", "messages", locale=ctx.locale).format(
+                display_name=user.display_name
+            )
+        )
 
     # TODO Implement the command
-    @command_group.command(
-        name="update_channel",
-        description="Update user's channel",
-    )
-    @option(
-        "user",
-        description="Selected user",
-    )
-    async def command_user_update_channel(self, ctx: ApplicationContext, user: User) -> None:
-        await ctx.respond("Not implemented.")
+    # @command_group.command(
+    #     name="create_channel",
+    #     description="Create channel for the user",
+    # )
+    # @option(
+    #     "user",
+    #     description="Selected user",
+    # )
+    # async def command_user_create_channel(self, ctx: ApplicationContext, user: User) -> None:
+    #     await ctx.respond("Not implemented.")
 
     # TODO Implement the command
-    @command_group.command(
-        name="delete_channel",
-        description="Delete user's channel",
-    )
-    @option(
-        "user",
-        description="Selected user",
-    )
-    @option("confirm", description="Confirmation of the operation", required=False)
-    async def command_user_delete_channel(self, ctx: ApplicationContext, user: User, confirm: bool = False) -> None:
-        await ctx.respond("Not implemented.")
+    # @command_group.command(
+    #     name="delete_channel",
+    #     description="Delete user's channel",
+    # )
+    # @option(
+    #     "user",
+    #     description="Selected user",
+    # )
+    # @option("confirm", description="Confirmation of the operation", required=False)
+    # async def command_user_delete_channel(
+    #     self, ctx: ApplicationContext, user: User, confirm: bool = False
+    # ) -> None:
+    #     await ctx.respond("Not implemented.")
 
-    # TODO Introduce i18n
     @command_group.command(
         name="jail",
-        description="Jail the user",
+        description=_("description", "commands", "user_jail"),
+        description_localizations=in_every_locale("description", "commands", "user_jail"),
     )
     @option(
         "user",
-        description="Selected user",
+        description=_("description", "commands", "user_jail", "options", "user"),
+        description_localizations=in_every_locale(
+            "description", "commands", "user_jail", "options", "user"
+        ),
+    )
+    @option(
+        "confirm",
+        description=_("description", "commands", "user_jail", "options", "confirm"),
+        description_localizations=in_every_locale(
+            "description", "commands", "user_jail", "options", "confirm"
+        ),
+        required=False,
     )
-    @option("confirm", description="Confirmation of the operation", required=False)
     async def command_user_jail(self, ctx: ApplicationContext, user: User, confirm: bool = False) -> None:
         if not (await is_operation_confirmed(ctx, confirm)):
             return
@@ -74,25 +204,42 @@ class CogUser(Cog):
         pycord_user: PycordUser = await self.bot.find_user(user, ctx.guild)
 
         if pycord_user.is_jailed:
-            # TODO Introduce i18n
-            await ctx.respond(f"User **{user.display_name}** is already jailed.")
+            await ctx.respond(
+                self.bot._("user_jail_already_jailed", "messages", locale=ctx.locale).format(
+                    display_name=user.display_name
+                ),
+                ephemeral=True,
+            )
             return
 
         await pycord_user.jail(self.bot.cache)
 
-        # TODO Introduce i18n
-        await ctx.respond(f"User **{user.display_name}** has been jailed and cannot interact with events anymore.")
+        await ctx.respond(
+            self.bot._("user_jail_successful", "messages", locale=ctx.locale).format(
+                display_name=user.display_name
+            )
+        )
 
-    # TODO Introduce i18n
     @command_group.command(
         name="unjail",
-        description="Unjail the user",
+        description=_("description", "commands", "user_unjail"),
+        description_localizations=in_every_locale("description", "commands", "user_unjail"),
     )
     @option(
         "user",
-        description="Selected user",
+        description=_("description", "commands", "user_unjail", "options", "user"),
+        description_localizations=in_every_locale(
+            "description", "commands", "user_unjail", "options", "user"
+        ),
+    )
+    @option(
+        "confirm",
+        description=_("description", "commands", "user_unjail", "options", "confirm"),
+        description_localizations=in_every_locale(
+            "description", "commands", "user_unjail", "options", "confirm"
+        ),
+        required=False,
     )
-    @option("confirm", description="Confirmation of the operation", required=False)
     async def command_user_unjail(self, ctx: ApplicationContext, user: User, confirm: bool = False) -> None:
         if not (await is_operation_confirmed(ctx, confirm)):
             return
@@ -100,14 +247,21 @@ class CogUser(Cog):
         pycord_user: PycordUser = await self.bot.find_user(user, ctx.guild)
 
         if not pycord_user.is_jailed:
-            # TODO Introduce i18n
-            await ctx.respond(f"User **{user.display_name}** is not jailed.")
+            await ctx.respond(
+                self.bot._("user_unjail_not_jailed", "messages", locale=ctx.locale).format(
+                    display_name=user.display_name
+                ),
+                ephemeral=True,
+            )
             return
 
         await pycord_user.unjail(self.bot.cache)
 
-        # TODO Introduce i18n
-        await ctx.respond(f"User **{user.display_name}** has been unjailed and can interact with events again.")
+        await ctx.respond(
+            self.bot._("user_unjail_successful", "messages", locale=ctx.locale).format(
+                display_name=user.display_name
+            )
+        )
 
 
 def setup(bot: PycordBot) -> None:

cogs/cog_utility.py

@@ -0,0 +1,150 @@
+from datetime import datetime
+from logging import Logger
+from pathlib import Path
+from typing import Any, Dict, List
+from zoneinfo import ZoneInfo
+
+from bson import ObjectId
+from bson.errors import InvalidId
+from discord import Activity, ActivityType, Cog, File, Member, TextChannel
+
+from classes import PycordEvent, PycordGuild, PycordUser
+from classes.errors import GuildNotFoundError
+from classes.pycord_bot import PycordBot
+from modules.database import col_users
+from modules.utils import get_logger, get_utc_now
+
+logger: Logger = get_logger(__name__)
+
+
+class CogUtility(Cog):
+    def __init__(self, bot: PycordBot):
+        self.bot: PycordBot = bot
+
+    @Cog.listener()
+    async def on_ready(self) -> None:
+        """Listener for the event when bot connects to Discord and becomes "ready"."""
+        logger.info("Logged in as %s", self.bot.user)
+
+        activity_enabled: bool = self.bot.config["bot"]["status"]["enabled"]
+        activity_type: str = self.bot.config["bot"]["status"]["activity_type"]
+        activity_message: str = self.bot.config["bot"]["status"]["activity_text"]
+
+        if not activity_enabled:
+            return
+
+        if activity_type == "playing":
+            await self.bot.change_presence(
+                activity=Activity(type=ActivityType.playing, name=activity_message)
+            )
+        elif activity_type == "watching":
+            await self.bot.change_presence(
+                activity=Activity(type=ActivityType.watching, name=activity_message)
+            )
+        elif activity_type == "listening":
+            await self.bot.change_presence(
+                activity=Activity(type=ActivityType.listening, name=activity_message)
+            )
+        elif activity_type == "streaming":
+            await self.bot.change_presence(
+                activity=Activity(type=ActivityType.streaming, name=activity_message)
+            )
+        elif activity_type == "competing":
+            await self.bot.change_presence(
+                activity=Activity(type=ActivityType.competing, name=activity_message)
+            )
+        elif activity_type == "custom":
+            await self.bot.change_presence(
+                activity=Activity(type=ActivityType.custom, name=activity_message)
+            )
+        else:
+            return
+
+        logger.info("Set activity type to %s with message %s", activity_type, activity_message)
+
+    @Cog.listener("on_member_join")
+    async def on_member_join(self, member: Member) -> None:
+        try:
+            guild: PycordGuild = await self.bot.find_guild(member.guild.id)
+        except (InvalidId, GuildNotFoundError) as exc:
+            logger.error(
+                "Could not process member join event for %s in %s due to: %s",
+                member.id,
+                member.guild.id,
+                exc,
+            )
+            return
+
+        user: PycordUser = await self.bot.find_user(member.id, member.guild.id)
+        events: List[PycordEvent] = []
+
+        utc_now: datetime = get_utc_now()
+
+        pipeline: List[Dict[str, Any]] = [
+            {"$match": {"id": user.id}},
+            {
+                "$lookup": {
+                    "from": "events",
+                    "let": {"event_ids": "$registered_event_ids"},
+                    "pipeline": [
+                        {
+                            "$match": {
+                                "$expr": {
+                                    "$and": [
+                                        {"$in": ["$_id", "$$event_ids"]},
+                                        {"$eq": ["$ended", None]},
+                                        {"$gt": ["$ends", utc_now]},
+                                        {"$lt": ["$starts", utc_now]},
+                                        {"$eq": ["$is_cancelled", False]},
+                                    ]
+                                }
+                            }
+                        }
+                    ],
+                    "as": "registered_events",
+                }
+            },
+            {"$match": {"registered_events.0": {"$exists": True}}},
+        ]
+
+        async with await col_users.aggregate(pipeline) as cursor:
+            async for result in cursor:
+                for registered_event in result["registered_events"]:
+                    events.append(PycordEvent(**registered_event))
+
+        for event in events:
+            if user.current_event_id is not None and user.current_event_id != event._id:
+                continue
+
+            if user.current_event_id is None:
+                await user.set_event(event._id, cache=self.bot.cache)
+
+            channel: TextChannel | None = await user.fix_event_channel(
+                self.bot, member.guild, guild, event, cache=self.bot.cache
+            )
+
+            if channel is None:
+                continue
+
+            thumbnail: File | None = (
+                None
+                if event.thumbnail is None
+                else File(Path(f"data/{event.thumbnail['id']}"), event.thumbnail["filename"])
+            )
+
+            await channel.send(
+                self.bot._("notice_event_already_started", "messages").format(event_name=event.name),
+                file=thumbnail,
+            )
+
+            stage_id: ObjectId = (
+                event.stage_ids[0] if user.current_stage_id is None else user.current_stage_id
+            )
+
+            await user.set_event_stage(stage_id, cache=self.bot.cache)
+
+            await self.bot.send_stage_question(channel, event, await self.bot.find_event_stage(stage_id))
+
+
+def setup(bot: PycordBot) -> None:
+    bot.add_cog(CogUtility(bot))

config_example.json

@@ -12,7 +12,7 @@
         "timezone": "UTC",
         "status": {
             "enabled": true,
-            "activity_type": 0,
+            "activity_type": "playing",
             "activity_text": "The Game Of Life"
         }
     },

locale/en-US.json

@@ -1,12 +1,68 @@
 {
     "messages": {
-        "operation_unconfirmed": "Operation not confirmed.",
+        "admin_channel_creation_failed": "Event channel could not be created for user **{display_name}** ({mention}) and event **{event_name}**.",
+        "admin_channel_creation_failed_no_user": "Event channel could not be created for user with ID `{user_id}` (<@{user_id}>) and event **{event_name}**: user was not found on the server.",
+        "admin_event_ended": "Event **{event_name}** has ended! Users can no longer submit their answers.",
+        "admin_event_no_stages_defined": "Could not start the event **{event_name}**: no event stages are defined.",
+        "admin_event_started": "Event **{event_name}** has started! Users have gotten their channels and can already start submitting their answers.",
+        "admin_user_channel_creation_failed": "Event channel could not be created for user **{display_name}** ({mention}) and event **{event_name}**.",
+        "admin_user_channel_fixed": "Fixed event channel of user **{display_name}** ({mention}) for the event **{event_name}**.",
+        "admin_user_completed_event": "User **{display_name}** ({mention}) has completed the event **{event_name}**",
+        "admin_user_completed_stage": "User **{display_name}** ({mention}) has completed the stage {stage_sequence} of the event **{event_name}**.",
+        "config_reset": "Configuration has been reset. You can update it using `/config set`, otherwise no events can be held.",
+        "config_set": "Configuration has been updated. You can review it anytime using `/config show`.",
+        "config_show": "**Guild config**\n\nCategory: <#{category_id}>\nGeneral channel: <#{general_channel_id}>\nManagement channel: <#{management_channel_id}>\nTimezone: `{timezone}`\nPrefer emojis: `{prefer_emojis}`",
+        "event_cancelled": "Event **{event_name}** was cancelled.",
+        "event_created": "Event **{event_name}** has been created and will take place <t:{start_time}:R>.",
+        "event_dates_parsing_failed": "Could not parse start and end dates. Please, make sure these are provided in `DD.MM.YYYY HH:MM` format.",
+        "event_details": "**Event details**\n\nName: {event_name}\nStarts: <t:{start_time}>\nEnds: <t:{end_time}>\n\nStages:\n{stages}",
+        "event_end_before_start": "Start date must be before end date",
+        "event_end_date_parsing_failed": "Could not parse the end date. Please, make sure it is provided in `DD.MM.YYYY HH:MM` format.",
+        "event_end_past": "End date must not be in the past",
+        "event_ended": "Event **{event_name}** has ended! Stages and respective answers are listed below.\n\n{stages}",
+        "event_ended_short": "Event **{event_name}** has ended! Stages and respective answers are listed below.",
+        "event_is_cancelled": "This event was cancelled.",
+        "event_is_starting": "Event **{event_name}** is starting!\n\nUse slash command `/guess` to suggest your answers to each event stage.",
+        "event_name_duplicate": "There can only be one active event with the same name",
+        "event_not_editable": "Finished or ongoing events cannot be cancelled.",
+        "event_not_found": "Event was not found.",
+        "event_ongoing_not_editable": "Ongoing events cannot be modified.",
+        "event_start_date_parsing_failed": "Could not parse the start date. Please, make sure it is provided in `DD.MM.YYYY HH:MM` format.",
+        "event_start_past": "Start date must not be in the past",
+        "event_started": "Event **{event_name}** has started! Use command `/register` to participate in the event.",
+        "event_updated": "Event **{event_name}** has been updated and will take place <t:{start_time}:R>.",
+        "guess_completed_event": "Congratulations! You have completed the event!\nPlease, do not share the answers with others until the event ends so that everyone can have fun. Thank you!",
+        "guess_incorrect": "Provided answer is wrong.",
+        "guess_incorrect_channel": "Usage outside own event channel is not allowed.",
+        "guess_incorrect_event": "Your event could not be found. Please, contact the administrator.",
+        "guess_unregistered": "You have no ongoing events. You can register for events using the `/register` command.",
         "guild_unconfigured": "Guild is not configured. Please, report this to the administrator.",
         "guild_unconfigured_admin": "Guild is not configured. Please, configure it using `/config set`.",
+        "jailed_error": "You are jailed and cannot interact with events. Please, contact the administrator.",
+        "notice_event_already_started": "Event **{event_name}** has already started!\n\nUse slash command `/guess` to suggest your answers to each event stage.",
+        "operation_unconfirmed": "Operation not confirmed.",
+        "register_already_registered": "You are already registered for this event.",
+        "register_success_ongoing": "You are now registered for the event **{event_name}**.\n\nNew channel has been created for you and further instructions will are provided in it. Good luck!",
+        "register_success_scheduled": "You are now registered for the event **{event_name}**.\n\nNew channel will be created for you and further instructions will be provided as soon as the event starts <t:{event_starts}:R>. Good luck!",
+        "stage_created": "Event stage has been created.",
+        "stage_deleted": "Event stage has been deleted.",
+        "stage_entry": "**Stage {sequence}**\nAnswer: ||{answer}||",
+        "stage_entry_footer": "Answer: ||{answer}||",
+        "stage_entry_header": "**Stage {sequence}**\nQuestion: {question}",
+        "stage_not_found": "Event stage was not found.",
+        "stage_sequence_out_of_range": "Stage sequence out of range.",
+        "stage_updated": "Event stage has been updated.",
+        "status": "**QuizBot** v{version}\n\nUptime: since <t:{start_time}>",
+        "status_git": "**QuizBot** v{version} (`{commit}`)\n\nUptime: up since <t:{start_time}>",
         "timezone_invalid": "Timezone **{timezone}** was not found. Please, select one of the timezones provided by the autocompletion.",
-        "config_set": "Configuration has been updated. You can review it anytime using `/config show`.",
-        "config_reset": "Configuration has been reset. You can update it using `/config set`, otherwise no events can be held.",
-        "config_show": "**Guild config**\n\nChannel: <#{channel_id}>\nCategory: <#{category_id}>\nTimezone: {timezone}"
+        "unexpected_error": "An unexpected error has occurred. Please, contact the administrator.",
+        "unregister_not_registered": "You are not registered for this event.",
+        "unregister_unregistered": "You are no longer registered for this event.",
+        "user_channels_updated": "Event channels of the user **{display_name}** were updated.",
+        "user_jail_already_jailed": "User **{display_name}** is already jailed.",
+        "user_jail_successful": "User **{display_name}** has been jailed and cannot interact with events anymore.",
+        "user_unjail_not_jailed": "User **{display_name}** is not jailed.",
+        "user_unjail_successful": "User **{display_name}** has been unjailed and can interact with events again."
     },
     "commands": {
         "config": {
@@ -18,11 +74,17 @@
                 "category": {
                     "description": "Category where channels for each user will be created"
                 },
-                "channel": {
+                "general_channel": {
+                    "description": "Text channel for general notifications and bot usage"
+                },
+                "management_channel": {
                     "description": "Text channel for admin notifications"
                 },
                 "timezone": {
                     "description": "Timezone in which events take place"
+                },
+                "prefer_emojis": {
+                    "description": "Prefer emojis over text messages where available"
                 }
             }
         },
@@ -36,6 +98,196 @@
         },
         "config_show": {
             "description": "Show the guild's configuration"
+        },
+        "event": {
+            "description": "Event management"
+        },
+        "event_create": {
+            "description": "Create new event",
+            "options": {
+                "name": {
+                    "description": "Name of the event"
+                },
+                "start": {
+                    "description": "Date when the event starts (DD.MM.YYYY HH:MM)"
+                },
+                "end": {
+                    "description": "Date when the event ends (DD.MM.YYYY HH:MM)"
+                },
+                "thumbnail": {
+                    "description": "Thumbnail of the event"
+                }
+            }
+        },
+        "event_edit": {
+            "description": "Edit the event",
+            "options": {
+                "event": {
+                    "description": "Name of the event"
+                },
+                "name": {
+                    "description": "New name of the event"
+                },
+                "start": {
+                    "description": "Date when the event starts (DD.MM.YYYY HH:MM)"
+                },
+                "end": {
+                    "description": "Date when the event ends (DD.MM.YYYY HH:MM)"
+                },
+                "thumbnail": {
+                    "description": "Thumbnail of the event"
+                }
+            }
+        },
+        "event_cancel": {
+            "description": "Cancel the event",
+            "options": {
+                "event": {
+                    "description": "Name of the event"
+                },
+                "confirm": {
+                    "description": "Confirmation of the operation"
+                }
+            }
+        },
+        "event_show": {
+            "description": "Show details about the event",
+            "options": {
+                "event": {
+                    "description": "Name of the event"
+                }
+            }
+        },
+        "guess": {
+            "description": "Provide an answer to the current event stage",
+            "options": {
+                "answer": {
+                    "description": "Answer to the current stage"
+                }
+            }
+        },
+        "register": {
+            "description": "Register for the selected event",
+            "options": {
+                "event": {
+                    "description": "Name of the event"
+                }
+            }
+        },
+        "stage": {
+            "description": "Event stage management"
+        },
+        "stage_add": {
+            "description": "Add new event stage",
+            "options": {
+                "event": {
+                    "description": "Name of the event"
+                },
+                "question": {
+                    "description": "Question to be answered"
+                },
+                "answer": {
+                    "description": "Answer to the stage's question"
+                },
+                "media": {
+                    "description": "Media file to be attached"
+                }
+            }
+        },
+        "stage_edit": {
+            "description": "Edit the event stage",
+            "options": {
+                "event": {
+                    "description": "Name of the event"
+                },
+                "stage": {
+                    "description": "Stage to edit"
+                },
+                "order": {
+                    "description": "Number in the event stages' order"
+                },
+                "question": {
+                    "description": "Question to be answered"
+                },
+                "answer": {
+                    "description": "Answer to the question"
+                },
+                "media": {
+                    "description": "Media file to be attached"
+                },
+                "remove_media": {
+                    "description": "Remove attached media"
+                }
+            }
+        },
+        "stage_delete": {
+            "description": "Delete the event stage",
+            "options": {
+                "event": {
+                    "description": "Name of the event"
+                },
+                "stage": {
+                    "description": "Stage to delete"
+                },
+                "confirm": {
+                    "description": "Confirmation of the operation"
+                }
+            }
+        },
+        "status": {
+            "description": "Get status of the bot"
+        },
+        "unregister": {
+            "description": "Leave the selected event",
+            "options": {
+                "event": {
+                    "description": "Name of the event"
+                },
+                "confirm": {
+                    "description": "Confirmation of the operation"
+                }
+            }
+        },
+        "user": {
+            "description": "User management"
+        },
+        "user_create_channel": {
+            "description": "Create channel for the user",
+            "options": {}
+        },
+        "user_update_channels": {
+            "description": "Update user's event channels",
+            "options": {
+                "user": {
+                    "description": "Selected user"
+                }
+            }
+        },
+        "user_delete_channel": {
+            "description": "Delete user's channel",
+            "options": {}
+        },
+        "user_jail": {
+            "description": "Jail the user",
+            "options": {
+                "user": {
+                    "description": "Selected user"
+                },
+                "confirm": {
+                    "description": "Confirmation of the operation"
+                }
+            }
+        },
+        "user_unjail": {
+            "description": "Unjail the user",
+            "options": {
+                "user": {
+                    "description": "Selected user"
+                },
+                "confirm": {
+                    "description": "Confirmation of the operation"
+                }
+            }
         }
     }
 }

main.py

@@ -1,3 +1,5 @@
+"""Main module with entry point that must be executed for the bot to start"""
+
 import contextlib
 import logging.config
 from argparse import ArgumentParser
@@ -39,7 +41,7 @@ with contextlib.suppress(ImportError):
     uvloop.install()
 
 
-def main():
+def main() -> None:
     # Perform migration if command line argument was provided
     if args.migrate:
         migrate_database()

modules/database.py

@@ -2,8 +2,10 @@
 
 from typing import Any, Mapping
 
-from async_pymongo import AsyncClient, AsyncCollection, AsyncDatabase
 from libbot.utils import config_get
+from pymongo import AsyncMongoClient
+from pymongo.asynchronous.collection import AsyncCollection
+from pymongo.asynchronous.database import AsyncDatabase
 
 db_config: Mapping[str, Any] = config_get("database")
 
@@ -19,7 +21,7 @@ else:
     con_string = "mongodb://{0}:{1}/{2}".format(db_config["host"], db_config["port"], db_config["name"])
 
 # Async declarations
-db_client = AsyncClient(con_string)
+db_client = AsyncMongoClient(con_string)
 db: AsyncDatabase = db_client.get_database(name=db_config["name"])
 
 col_users: AsyncCollection = db.get_collection("users")
@@ -27,10 +29,10 @@ col_guilds: AsyncCollection = db.get_collection("guilds")
 col_events: AsyncCollection = db.get_collection("events")
 col_stages: AsyncCollection = db.get_collection("stages")
 
+
 # Update indexes
-db.dispatch.get_collection("users").create_index("id", name="user_id", unique=True)
-db.dispatch.get_collection("guilds").create_index("id", name="guild_id", unique=True)
-db.dispatch.get_collection("events").create_index("guild_id", name="guild_id", unique=False)
-db.dispatch.get_collection("stages").create_index(
-    ["event_id", "guild_id"], name="event_id-and-guild_id", unique=False
-)
+async def _update_database_indexes() -> None:
+    await col_users.create_index("id", name="user_id", unique=True)
+    await col_guilds.create_index("id", name="guild_id", unique=True)
+    await col_events.create_index("guild_id", name="guild_id", unique=False)
+    await col_stages.create_index(["event_id", "guild_id"], name="event_id-and-guild_id", unique=False)

modules/utils/__init__.py

@@ -7,7 +7,8 @@ from .autocomplete_utils import (
     autocomplete_user_registered_events,
 )
 from .cache_utils import restore_from_cache
-from .datetime_utils import get_unix_timestamp
+from .datetime_utils import get_unix_timestamp, get_utc_now
 from .event_utils import validate_event_validity
+from .git_utils import get_current_commit
 from .logging_utils import get_logger, get_logging_config
 from .validation_utils import is_event_status_valid, is_operation_confirmed

modules/utils/autocomplete_utils.py

@@ -29,7 +29,7 @@ async def autocomplete_active_events(ctx: AutocompleteContext) -> List[OptionCho
     query: Dict[str, Any] = {
         "ended": None,
         "ends": {"$gt": datetime.now(tz=ZoneInfo("UTC"))},
-        "is_cancelled": {"$ne": True},
+        "is_cancelled": False,
     }
 
     event_names: List[OptionChoice] = []
@@ -49,30 +49,41 @@ async def autocomplete_user_available_events(ctx: AutocompleteContext) -> List[O
 async def autocomplete_user_registered_events(ctx: AutocompleteContext) -> List[OptionChoice]:
     """Return list of active events user is registered in"""
 
+    utc_now: datetime = datetime.now(tz=ZoneInfo("UTC"))
+
     pipeline: List[Dict[str, Any]] = [
+        {"$match": {"id": ctx.interaction.user.id}},
         {
             "$lookup": {
                 "from": "events",
-                "localField": "registered_event_ids",
-                "foreignField": "_id",
+                "let": {"event_ids": "$registered_event_ids"},
+                "pipeline": [
+                    {
+                        "$match": {
+                            "$expr": {
+                                "$and": [
+                                    {"$in": ["$_id", "$$event_ids"]},
+                                    {"$eq": ["$ended", None]},
+                                    {"$gt": ["$ends", utc_now]},
+                                    {"$gt": ["$starts", utc_now]},
+                                    {"$eq": ["$is_cancelled", False]},
+                                ]
+                            }
+                        }
+                    }
+                ],
                 "as": "registered_events",
             }
         },
-        {
-            "$match": {
-                "registered_events.ended": None,
-                "registered_events.ends": {"$gt": datetime.now(tz=ZoneInfo("UTC"))},
-                "registered_events.starts": {"$gt": datetime.now(tz=ZoneInfo("UTC"))},
-                "registered_events.is_cancelled": {"$ne": True},
-            }
-        },
+        {"$match": {"registered_events.0": {"$exists": True}}},
     ]
 
     event_names: List[OptionChoice] = []
 
-    async for result in col_users.aggregate(pipeline):
-        for registered_event in result["registered_events"]:
-            event_names.append(OptionChoice(registered_event["name"], str(registered_event["_id"])))
+    async with await col_users.aggregate(pipeline) as cursor:
+        async for result in cursor:
+            for registered_event in result["registered_events"]:
+                event_names.append(OptionChoice(registered_event["name"], str(registered_event["_id"])))
 
     return event_names
 
@@ -92,6 +103,11 @@ async def autocomplete_event_stages(ctx: AutocompleteContext) -> List[OptionChoi
     event_stages: List[OptionChoice] = []
 
     async for result in col_stages.find(query).sort([("sequence", ASCENDING)]):
-        event_stages.append(OptionChoice(f"{result['sequence']+1} ({result['question']})", str(result["_id"])))
+        event_stages.append(
+            OptionChoice(
+                f"{result['sequence']+1} ({result['question'] if len(result['question']) < 50 else result['question'][:47] + '...'})",
+                str(result["_id"]),
+            )
+        )
 
     return event_stages

modules/utils/datetime_utils.py

@@ -3,5 +3,10 @@ from zoneinfo import ZoneInfo
 
 
 # TODO Add documentation
-def get_unix_timestamp(date: datetime) -> int:
-    return int((date.replace(tzinfo=ZoneInfo("UTC"))).timestamp())
+def get_unix_timestamp(date: datetime, to_utc: bool = False) -> int:
+    return int((date if not to_utc else date.replace(tzinfo=ZoneInfo("UTC"))).timestamp())
+
+
+# TODO Add documentation
+def get_utc_now() -> datetime:
+    return datetime.now(tz=ZoneInfo("UTC"))

modules/utils/event_utils.py

@@ -1,11 +1,12 @@
 from datetime import datetime
-from typing import Any, Dict
+from typing import Any, Dict, Optional
 from zoneinfo import ZoneInfo
 
 from bson import ObjectId
 from discord import (
     ApplicationContext,
 )
+from libbot.i18n import _
 
 from modules.database import col_events
 
@@ -13,20 +14,25 @@ from modules.database import col_events
 async def validate_event_validity(
     ctx: ApplicationContext,
     name: str,
-    start_date: datetime | None,
-    finish_date: datetime | None,
-    guild_timezone: ZoneInfo,
-    event_id: ObjectId | None = None,
-) -> None:
-    if start_date > finish_date:
-        # TODO Make a nice message
-        await ctx.respond("Start date must be before finish date")
-        return
+    start_date: datetime,
+    end_date: datetime,
+    event_id: Optional[ObjectId] = None,
+    to_utc: bool = False,
+) -> bool:
+    start_date_internal: datetime = start_date.astimezone(ZoneInfo("UTC")) if to_utc else start_date
+    end_date_internal: datetime = end_date.astimezone(ZoneInfo("UTC")) if to_utc else end_date
 
-    if start_date < datetime.now(tz=guild_timezone):
-        # TODO Make a nice message
-        await ctx.respond("Start date must not be in the past")
-        return
+    if start_date_internal < datetime.now(tz=ZoneInfo("UTC")):
+        await ctx.respond(_("event_start_past", "messages", locale=ctx.locale), ephemeral=True)
+        return False
+
+    if end_date_internal < datetime.now(tz=ZoneInfo("UTC")):
+        await ctx.respond(_("event_end_past", "messages", locale=ctx.locale), ephemeral=True)
+        return False
+
+    if start_date_internal >= end_date_internal:
+        await ctx.respond(_("event_end_before_start", "messages", locale=ctx.locale), ephemeral=True)
+        return False
 
     # TODO Add validation for concurrent events.
     #  Only one event can take place at the same time.
@@ -41,6 +47,7 @@ async def validate_event_validity(
         query["_id"] = {"$ne": event_id}
 
     if (await col_events.find_one(query)) is not None:
-        # TODO Make a nice message
-        await ctx.respond("There can only be one active event with the same name")
-        return
+        await ctx.respond(_("event_name_duplicate", "messages", locale=ctx.locale), ephemeral=True)
+        return False
+
+    return True

modules/utils/git_utils.py

@@ -0,0 +1,27 @@
+from pathlib import Path
+
+import aiofiles
+
+
+# TODO Add documentation
+async def get_current_commit() -> str | None:
+    head_path: Path = Path(".git/HEAD")
+
+    if not head_path.exists():
+        return None
+
+    async with aiofiles.open(head_path, "r", encoding="utf-8") as head_file:
+        head_content: str = (await head_file.read()).strip()
+
+    if not head_content.startswith("ref:"):
+        return head_content
+
+    head_ref_path: Path = Path(".git/").joinpath(" ".join(head_content.split(" ")[1:]))
+
+    if not head_ref_path.exists():
+        return None
+
+    async with aiofiles.open(head_ref_path, "r", encoding="utf-8") as head_ref_file:
+        head_ref_content: str = (await head_ref_file.read()).strip()
+
+    return head_ref_content

modules/utils/validation_utils.py

@@ -2,11 +2,12 @@ from datetime import datetime
 from zoneinfo import ZoneInfo
 
 from discord import ApplicationContext
+from libbot.i18n import _
 
 
 async def is_operation_confirmed(ctx: ApplicationContext, confirm: bool) -> bool:
     if confirm is None or not confirm:
-        await ctx.respond(ctx.bot._("operation_unconfirmed", "messages", locale=ctx.locale))
+        await ctx.respond(ctx.bot._("operation_unconfirmed", "messages", locale=ctx.locale), ephemeral=True)
         return False
 
     return True
@@ -17,8 +18,7 @@ async def is_event_status_valid(
     event: "PycordEvent",
 ) -> bool:
     if event.is_cancelled:
-        # TODO Make a nice message
-        await ctx.respond("This event was cancelled.")
+        await ctx.respond(_("event_is_cancelled", "messages", locale=ctx.locale), ephemeral=True)
         return False
 
     if (
@@ -26,8 +26,7 @@ async def is_event_status_valid(
         <= datetime.now(tz=ZoneInfo("UTC"))
         <= event.ends.replace(tzinfo=ZoneInfo("UTC"))
     ):
-        # TODO Make a nice message
-        await ctx.respond("Ongoing events cannot be modified.")
+        await ctx.respond(_("event_ongoing_not_editable", "messages", locale=ctx.locale), ephemeral=True)
         return False
 
     return True

pyproject.toml

@@ -5,7 +5,7 @@ readme = "README.md"
 requires-python = ">=3.11"
 
 [tool.black]
-line-length = 118
+line-length = 108
 target-version = ["py311", "py312", "py313"]
 
 [tool.isort]

requirements.txt

@@ -1,5 +1,10 @@
+aiodns~=3.2.0
 apscheduler~=3.11.0
-async_pymongo==0.1.11
+brotlipy~=0.7.0
+faust-cchardet~=2.1.19
 libbot[speed,pycord,cache]==4.1.0
 mongodb-migrations==1.3.1
-pytz~=2025.1
+msgspec~=0.19.0
+pymongo~=4.12.1,>=4.9
+pytz~=2025.1
+typing_extensions>=4.11.0