from datetime import datetime
from os import sep
from uuid import uuid1
from requests import get
from traceback import print_exc
from app import app, isAnAdmin
from typing import Any, List, Literal, Union
from pyrogram.types import User, ChatMember, ChatPrivileges, Chat, Message, Photo, Video, Document, Animation, Voice, ForceReply, ReplyKeyboardMarkup
from pyrogram.errors import bad_request_400
from dateutil.relativedelta import relativedelta
from modules.database import col_tmp, col_users, col_context, col_warnings, col_applications, col_sponsorships, col_messages
from modules.logging import logWrite
from modules.utils import configGet, locale, should_quote

class DefaultApplicationTemp(dict):
    def __init__(self, user: int):
        super().__init__({})
        self.dict = {
            "user": user,
            "type": "application",
            "complete": False,
            "sent": False,
            "state": "fill",
            "reapply": False,
            "stage": 1,
            "application": {
                "1": None,
                "2": None,
                "3": None,
                "4": None,
                "5": None,
                "6": None,
                "7": None,
                "8": None,
                "9": None,
                "10": None
            }
        }

class DefaultSponsorshipTemp(dict):
    def __init__(self, user: int):
        super().__init__({})
        self.dict = {
            "user": user,
            "type": "sponsorship",
            "complete": False,
            "sent": False,
            "state": "fill",
            "stage": 1,
            "sponsorship": {
                "streamer": None,
                "expires": datetime.fromtimestamp(0),
                "proof": None,
                "label": ""
            }
        }

class UserNotFoundError(Exception):
    """HoloUser could not find user with such an ID in database"""
    def __init__(self, user, user_id):
        self.user = user
        self.user_id = user_id
        super().__init__(f"User of type {type(self.user)} with id {self.user_id} was not found")

class UserInvalidError(Exception):
    """Provided to HoloUser object is not supported"""    
    def __init__(self, user):
        self.user = user
        super().__init__(f"Could not find HoloUser by using {type(self.user)} as an input type")

class LabelTooLongError(Exception):
    def __init__(self, label: str) -> None:
        self.label = label
        super().__init__(f"Could not set label to '{label}' because it is {len(label)} characters long (16 is maximum)")

class HoloUser():
    """This object represents a user of HoloChecker bot.
    It is primarily used to interact with a database in a more python-friendly way,
    as well as provide better programming experience in case of adding new features, etc.
    """    

    def __init__(self, user: Union[User, List[User], ChatMember, int]) -> None:
        """A user of Holo bot. Used to simplify DB interaction.

        ### Args:
            * user (`Union[User, List[User], ChatMember, int]`): Any possible way to identify the user. Pass `User` object, user's telegram ID, etc...

        ### Raises:
            * UserInvalidError: Provided to `HoloUser` object is not supported
            * UserNotFoundError: `HoloUser` could not find user with such an ID in database
        """        

        # Determine input object class and extract id
        if isinstance(user, list) and len(user) != 0:
            self.id = user[0].id
        elif isinstance(user, User):
            self.id = user.id
        elif isinstance(user, ChatMember):
            self.id = user.user.id
        elif isinstance(user, int):
            self.id = user
        # elif isinstance(user, str):
        #     try:
        #         get_users = async_to_sync(app.get_users)
        #         self.id = get_users(user).id # this line requires testing though
        #     except bad_request_400.UsernameNotOccupied:
        #         raise UserInvalidError(user)
        #     except bad_request_400.PeerIdInvalid:
        #         raise UserInvalidError(user)
        else:
            raise UserInvalidError(user)

        # Find user record in DB
        holo_user = col_users.find_one({"user": self.id})

        if holo_user is None:
            raise UserNotFoundError(user=user, user_id=self.id)

        self.db_id = holo_user["_id"]

        self.link = holo_user["link"]
        self.label = holo_user["label"]
        self.name = holo_user["tg_name"]
        self.phone = holo_user["tg_phone"]
        self.locale = holo_user["tg_locale"]
        self.username = holo_user["tg_username"]

        if isinstance(user, User):

            if (self.name != user.first_name) and hasattr(user, "first_name") and (user.first_name is not None):
                self.set("name", user.first_name, db_key="tg_name")

            if (self.phone != user.phone_number) and hasattr(user, "phone") and (user.phone_number is not None):
                self.set("phone", user.phone_number, db_key="tg_phone")

            if (self.locale != user.language_code) and hasattr(user, "locale") and (user.language_code is not None):
                self.set("locale", user.language_code, db_key="tg_locale")

            if (self.username != user.username) and hasattr(user, "username") and (user.username is not None):
                self.set("username", user.username, db_key="tg_username")
    
    def set(self, key: str, value: Any, db_key: Union[str, None] = None) -> None:
        """Set attribute data and save it into database

        ### Args:
            * `key` (`str`): Attribute to be changed
            * `value` (`Any`): Value to set
        """        
        if not hasattr(self, key):
            raise AttributeError()
        setattr(self, key, value)
        db_key = key if db_key is None else db_key
        col_users.update_one(filter={"_id": self.db_id}, update={ "$set": { db_key: value } }, upsert=True)
        logWrite(f"Set attribute {key} of user {self.id} to {value}")

    async def message(self,
        context: Message,
        origin: Union[Message, None] = None,
        text: Union[str, None] = None,
        caption: Union[str, None] = None,
        photo: Union[str, Photo, None] = None,
        video: Union[str, Video, None] = None,
        file: Union[str, Document, None] = None,
        animation: Union[str, Animation, None] = None,
        voice: Union[str, Voice, None] = None,
        adm_origin: bool = False,
        adm_context: bool = False
    ) -> None:
        """Send a message to user

        ### Args:
            * context (`Message`): Context (mostly the message where this method is called)
            * origin (`Union[Message, None]`, *optional*): Origin message where to refer. None if called in a command. Defaults to None.
            * text (`Union[str, None]`, *optional*): Text if this is a simple text message. Defaults to None.
            * caption (`Union[str, None]`, *optional*): Text if this is a media message. Defaults to None.
            * photo (`Union[str, Photo, None]`, *optional*): Photo as a photo object or file_id as a string. Defaults to None.
            * video (`Union[str, Video, None]`, *optional*): Video as a video object or file_id as a string. Defaults to None.
            * file (`Union[str, Document, None]`, *optional*): File as a document object or file_id as a string. Defaults to None.
            * animation (`Union[str, Animation, None]`, *optional*): Animation as an animation object or file_id as a string. Defaults to None.
            * voice (`Union[str, Voice, None]`, *optional*): Voice as a voice object or file_id as a string. Defaults to None.
            * adm_origin (`bool`, *optional*): Whether origin sender is an admin. Defaults to False.
            * adm_context (`bool`, *optional*): Whether context sender is an admin. Defaults to False.
        """    

        # Check if any text available and log message sending
        if text is not None:
            logWrite(f"{context.from_user.id} sent message '{text}' to {self.id}")
        elif caption is not None:
            logWrite(f"{context.from_user.id} sent message '{caption}' to {self.id}")
        else:
            logWrite(f"{context.from_user.id} sent message to {self.id}")

        # Add notices for admin or user
        if text is not None:
            if adm_context:
                text += locale("message_reply_notice", "message")
            elif adm_origin:
                text = locale("message_from", "message").format(context.from_user.first_name, context.from_user.id) + text + locale("message_reply_notice", "message")
        else:
            text = locale("message_reply_notice", "message")

        if caption is not None:
            if adm_context:
                caption += locale("message_reply_notice", "message")
            elif adm_origin:
                caption = locale("message_from", "message").format(context.from_user.first_name, context.from_user.id) + caption + locale("message_reply_notice", "message")
        else:
            caption = locale("message_reply_notice", "message")

        # Try sending the message
        try:

            # Check if origin message exists
            # This check decides whether we send_ a message or reply_ to one
            if origin is not None:

                if photo is not None:
                    if isinstance(photo, Photo):
                        photo = photo.file_id
                    new_message = await origin.reply_photo(photo, caption=caption, quote=True)
                elif video is not None:
                    if isinstance(video, Video):
                        video = video.file_id
                    new_message = await origin.reply_video(video, caption=caption, quote=True)
                elif file is not None:
                    if isinstance(file, Document):
                        file = file.file_id
                    new_message = await origin.reply_document(file, caption=caption, quote=True)
                elif animation is not None:
                    if isinstance(animation, Animation):
                        animation = animation.file_id
                    new_message = await origin.reply_animation(animation, caption=caption, quote=True)
                elif voice is not None:
                    if isinstance(voice, Voice):
                        voice = voice.file_id
                    new_message = await origin.reply_voice(voice, caption=caption, quote=True)
                else:
                    new_message = await origin.reply_text(text, quote=True)

            else:

                if photo is not None:
                    if isinstance(photo, Photo):
                        photo = photo.file_id
                    new_message = await app.send_photo(self.id, photo, caption=caption)
                elif video is not None:
                    if isinstance(video, Video):
                        video = video.file_id
                    new_message = await app.send_video(self.id, video, caption=caption)
                elif file is not None:
                    if isinstance(file, Document):
                        file = file.file_id
                    new_message = await app.send_document(self.id, file, caption=caption)
                elif animation is not None:
                    if isinstance(animation, Animation):
                        animation = animation.file_id
                    new_message = await app.send_animation(animation, caption=caption, quote=True)
                elif voice is not None:
                    if isinstance(voice, Voice):
                        voice = voice.file_id
                    new_message = await app.send_voice(voice, caption=caption, quote=True)
                else:
                    new_message = await app.send_message(self.id, text)

            # Acknowledge sending a message and save entry into DB
            await context.reply_text(locale("message_sent", "message"), quote=should_quote(context))
            col_messages.insert_one({"origin": {"chat": context.chat.id, "id": context.id}, "destination": {"chat": new_message.chat.id, "id": new_message.id}})

        # Report to admin and to sender about message sending failure
        except Exception as exp:
            logWrite(f"Exception {exp} happened as {context.from_user.id} tried to send message to {self.id}. Traceback:\n{print_exc()}")
            try:
                await app.send_message(configGet("owner"), locale("message_traceback", "message").format(context.from_user.id, self.id, exp, print_exc()))
            except bad_request_400.PeerIdInvalid:
                logWrite(f"Could not notify admin about failure when sending message! Admin has never interacted with bot!")
            await context.reply_text(locale("message_error", "message"), quote=should_quote(context))

    async def label_set(self, chat: Chat, label: str) -> None:
        """Set label in destination group

        ### Args:
            * chat (`Chat`): Telegram chat
            * label (`str`): Label you want to set
        """        
        if len(label) > 16:
            raise LabelTooLongError(label)
        self.label = label
        self.set("label", label)
        await app.promote_chat_member(configGet("destination_group"), self.id, privileges=ChatPrivileges(can_pin_messages=True, can_manage_video_chats=True))
        if not await isAnAdmin(self.id):
            await app.set_administrator_title(configGet("destination_group"), self.id, label)

    async def label_reset(self, chat: Chat) -> None:
        """Reset label in destination group

        ### Args:
            * chat (`Chat`): Telegram chat
        """        
        self.label = ""
        self.set("label", "")
        await app.set_administrator_title(configGet("destination_group"), self.id, "")
        if not await isAnAdmin(self.id):
            await app.promote_chat_member(configGet("destination_group"), self.id, privileges=ChatPrivileges(
                can_manage_chat=False,
                can_pin_messages=False,
                can_manage_video_chats=False
            ))

    def application_state(self) -> tuple[Literal["none", "fill", "approved", "rejected"], bool]:
        """Check the current state of application in tmp collection

        ### Returns:
            * `tuple[Literal["none", "fill", "approved", "rejected"], bool]`: First element is an enum of a state and the second one is whether application is complete.
        """        
        tmp_application = col_tmp.find_one({"user": self.id, "type": "application"})
        if tmp_application is None:
            return "none", False
        else:
            return tmp_application["state"], tmp_application["complete"]

    def application_approved(self) -> bool:
        """Check whether user has a completed application and it got approved

        ### Returns:
            * `bool`: `True` if yes and `False` if no
        """        
        return True if col_applications.find_one({"user": self.id}) is not None else False

    def application_restart(self) -> None:
        """Reset application of a user in tmp collection and replace it with an empty one
        """        
        if col_tmp.find_one({"user": self.id, "type": "application"}) is None:
            col_tmp.insert_one(document=DefaultApplicationTemp(self.id).dict)
        else:
            col_tmp.delete_one({"user": self.id, "type": "application"})
            col_tmp.insert_one(document=DefaultApplicationTemp(self.id).dict)

    async def application_next(self, query: str, msg: Message) -> None:
        """Move on filling application of user

        ### Args:
            * query (`str`): Some kind of input
            * msg (`Message`): Message that should receive replies
        """           

        if col_tmp.find_one({"user": self.id, "type": "application"}) is None:

            col_tmp.insert_one(
                document=DefaultApplicationTemp(self.id).dict
            )

        progress = col_tmp.find_one({"user": self.id, "type": "application"})
        stage = progress["stage"]

        if progress["state"] == "fill":

            if stage == 2:

                try:
                    input_dt = datetime.strptime(query, "%d.%m.%Y")
                except ValueError:
                    logWrite(f"User {msg.from_user.id} failed stage {stage} due to sending invalid date format")
                    await msg.reply_text(locale(f"question2_invalid", "message", locale=self.locale), reply_markup=ForceReply(placeholder=str(locale(f"question{stage}", "force_reply", locale=self.locale))))
                    return

                if datetime.now() <= input_dt:
                    logWrite(f"User {msg.from_user.id} failed stage {stage} due to joking")
                    await msg.reply_text(locale("question2_joke", "message", locale=self.locale), reply_markup=ForceReply(placeholder=str(locale("question2", "force_reply", locale=self.locale))))
                    return

                elif ((datetime.now() - input_dt).days) < ((datetime.now() - datetime.now().replace(year=datetime.now().year - configGet("age_allowed"))).days):
                    logWrite(f"User {msg.from_user.id} failed stage {stage} due to being underage")
                    await msg.reply_text(locale("question2_underage", "message", locale=self.locale).format(str(configGet("age_allowed"))), reply_markup=ForceReply(placeholder=str(locale("question2", "force_reply", locale=self.locale))))
                    return

                else:
                    print(f'Look: {((datetime.now() - input_dt).days)} > {(datetime.now() - datetime.now().replace(year=datetime.now().year - configGet("age_allowed"))).days}')
                    progress["application"][str(stage)] = input_dt
                    col_tmp.update_one({"user": {"$eq": self.id}, "type": {"$eq": "application"}}, {"$set": {"application": progress["application"], "stage": progress["stage"]+1}})
                    await msg.reply_text(locale(f"question{stage+1}", "message", locale=self.locale), reply_markup=ForceReply(placeholder=str(locale(f"question{stage+1}", "force_reply", locale=self.locale))))

            elif stage == 3:
                try:
                    result = (get(f"http://api.geonames.org/searchJSON?q={query}&maxRows=1&countryBias=UA&lang=uk&orderby=relevance&featureClass=P&featureClass=A&username={configGet('username', 'geocoding')}")).json()
                    progress["application"][str(stage)] = result["geonames"][0]
                    col_tmp.update_one({"user": {"$eq": self.id}, "type": {"$eq": "application"}}, {"$set": {"application": progress["application"], "stage": progress["stage"]+1}})
                    await msg.reply_text(locale(f"question3_found", "message", locale=self.locale).format(result["geonames"][0]["name"], result["geonames"][0]["adminName1"]))
                    await msg.reply_text(locale(f"question{stage+1}", "message", locale=self.locale), reply_markup=ForceReply(placeholder=str(locale(f"question{stage+1}", "force_reply", locale=self.locale))))
                except (ValueError, KeyError, IndexError):
                    await msg.reply_text(locale(f"question3_invalid", "message", locale=self.locale), reply_markup=ForceReply(placeholder=str(locale(f"question{stage}", "force_reply", locale=self.locale))))
                    return
                except Exception as exp:
                    await msg.reply_text(locale("question3_error", "message", locale=self.locale), reply_markup=ForceReply(placeholder=str(locale(f"question{stage}", "force_reply", locale=self.locale))))
                    try:
                        await app.send_message(configGet("owner"), locale("question3_traceback", "message", locale=self.locale).format(query, exp, print_exc()))
                    except bad_request_400.PeerIdInvalid:
                        logWrite(f"Could not notify admin about failure when sending message! Admin has never interacted with bot!")
                    return

            elif stage == 10:
                progress["application"][str(stage)] = query
                col_tmp.update_one({"user": {"$eq": self.id}, "type": {"$eq": "application"}}, {"$set": {"application": progress["application"], "complete": True}})
                application_content = []
                i = 1
                for question in progress["application"]:
                    if i == 2:
                        age = relativedelta(datetime.now(), progress['application']['2'])
                        application_content.append(f"{locale('question'+str(i), 'message', 'question_titles', locale=self.locale)} {progress['application']['2'].strftime('%d.%m.%Y')} ({age.years} р.)")
                    elif i == 3:
                        if progress['application']['3']['countryCode'] == "UA":
                            application_content.append(f"{locale('question'+str(i), 'message', 'question_titles', locale=self.locale)} {progress['application']['3']['name']} ({progress['application']['3']['adminName1']})")
                        else:
                            application_content.append(f"{locale('question'+str(i), 'message', 'question_titles', locale=self.locale)} {progress['application']['3']['name']} ({progress['application']['3']['adminName1']}, {progress['application']['3']['countryName']})")
                    else:
                        application_content.append(f"{locale('question'+str(i), 'message', 'question_titles', locale=self.locale)} {progress['application'][question]}")
                    i += 1
                await msg.reply_text(locale("confirm", "message", locale=self.locale).format("\n".join(application_content)), reply_markup=ReplyKeyboardMarkup(locale("confirm", "keyboard", locale=self.locale), resize_keyboard=True))

            else:
                progress["application"][str(stage)] = query
                col_tmp.update_one({"user": {"$eq": self.id}, "type": {"$eq": "application"}}, {"$set": {"application": progress["application"], "stage": progress["stage"]+1}})
                await msg.reply_text(locale(f"question{stage+1}", "message", locale=self.locale), reply_markup=ForceReply(placeholder=str(locale(f"question{stage+1}", "force_reply", locale=self.locale))))

            logWrite(f"User {self.id} completed stage {stage} of application")

        else:
            return

    def sponsorship_state(self) -> tuple[Literal["none", "fill", "approved", "rejected"], bool]:
        """Check the current state of sponsorship in tmp collection

        ### Returns:
            * `tuple[Literal["none", "fill", "approved", "rejected"], bool]`: First element is an enum of a state and the second one is whether sponsorship application is complete.
        """        
        tmp_sponsorship = col_tmp.find_one({"user": self.id, "type": "sponsorship"})
        if tmp_sponsorship is None:
            return "none", False
        else:
            return tmp_sponsorship["state"], tmp_sponsorship["complete"]

    def sponsorship_valid(self) -> bool:
        """Check whether user has a valid sponsorship

        ### Returns:
            * `bool`: `True` if yes and `False` if no
        """        
        return True if col_sponsorships.find_one({"user": self.id, "expires": {"$gt": datetime.now()}}) is not None else False

    def sponsorship_restart(self) -> None:
        """Reset sponsorship of a user in tmp collection and replace it with an empty one
        """        
        if col_tmp.find_one({"user": self.id, "type": "sponsorship"}) is None:
            col_tmp.insert_one(document=DefaultSponsorshipTemp(self.id).dict)
        else:
            col_tmp.delete_one({"user": self.id, "type": "sponsorship"})
            col_tmp.insert_one(document=DefaultSponsorshipTemp(self.id).dict)

    async def sponsorship_next(self, query: str, msg: Message, photo: Union[Photo, None] = None) -> None:
        """Move on filling sponsorship of user

        ### Args:
            * query (`str`): Some kind of input
            * msg (`Message`): Message that should receive replies
        """           

        if col_tmp.find_one({"user": self.id, "type": "sponsorship"}) is not None:

            progress = col_tmp.find_one({"user": self.id, "type": "sponsorship"})
            stage = progress["stage"]

            if progress["state"] == "fill":

                if stage == 1:

                    progress["sponsorship"]["streamer"] = query
                    col_tmp.update_one({"user": {"$eq": self.id}, "type": {"$eq": "sponsorship"}}, {"$set": {"sponsorship": progress["sponsorship"], "stage": progress["stage"]+1}})
                    await msg.reply_text(locale(f"sponsor{stage+1}", "message", locale=self.locale), reply_markup=ForceReply(placeholder=str(locale(f"sponsor{stage+1}", "force_reply", locale=self.locale))))

                elif stage == 2:

                    try:
                        input_dt = datetime.strptime(query, "%d.%m.%Y")
                    except ValueError:
                        logWrite(f"User {msg.from_user.id} failed stage {stage} due to sending invalid date format")
                        await msg.reply_text(locale(f"sponsor2_invalid", "message", locale=self.locale), reply_markup=ForceReply(placeholder=str(locale(f"sponsor{stage}", "force_reply", locale=self.locale))))
                        return

                    if datetime.now() >= input_dt:
                        logWrite(f"User {msg.from_user.id} failed stage {stage} due to sending date in the past")
                        await msg.reply_text(locale("sponsor2_past", "message", locale=self.locale), reply_markup=ForceReply(placeholder=str(locale("sponsor2", "force_reply", locale=self.locale))))
                        return

                    else:
                        progress["sponsorship"]["expires"] = input_dt
                        col_tmp.update_one({"user": {"$eq": self.id}, "type": {"$eq": "sponsorship"}}, {"$set": {"sponsorship": progress["sponsorship"], "stage": progress["stage"]+1}})
                        await msg.reply_text(locale(f"sponsor{stage+1}", "message", locale=self.locale), reply_markup=ForceReply(placeholder=str(locale(f"sponsor{stage+1}", "force_reply", locale=self.locale))))

                elif stage == 3:

                    if photo is not None:
                        filename = uuid1()
                        await app.download_media(photo.file_id, f"tmp{sep}{filename}")
                        with open(f"tmp{sep}{filename}", "rb") as f:
                            photo_bytes = f.read()
                        progress["sponsorship"]["proof"] = photo_bytes
                        col_tmp.update_one({"user": {"$eq": self.id}, "type": {"$eq": "sponsorship"}}, {"$set": {"sponsorship": progress["sponsorship"], "stage": progress["stage"]+1}})
                        await msg.reply_text(locale(f"sponsor{stage+1}", "message", locale=self.locale), reply_markup=ForceReply(placeholder=str(locale(f"sponsor{stage+1}", "force_reply", locale=self.locale))))

                elif stage == 4:
                    if len(query) > 16:
                        await msg.reply_text(locale("label_too_long", "message"))
                        return
                    progress["sponsorship"]["label"] = query
                    col_tmp.update_one({"user": {"$eq": self.id}, "type": {"$eq": "sponsorship"}}, {"$set": {"sponsorship": progress["sponsorship"], "complete": True}})
                    await msg.reply_text("Sponsorship application is filled. Want to send it?", reply_markup=ReplyKeyboardMarkup(locale("confirm", "keyboard", locale=self.locale), resize_keyboard=True))

                else:
                    return

                logWrite(f"User {self.id} completed stage {stage} of sponsorship")

            else:
                return