import contextlib
import logging
from datetime import datetime
from io import BytesIO
from os import makedirs, remove, sep
from pathlib import Path
from shutil import rmtree
from time import time
from traceback import format_exc
from typing import Dict, List, Tuple, Union

import aiofiles
from aiohttp import ClientSession
from bson import ObjectId
from libbot import json_write
from libbot.i18n.sync import _
from photosapi_client.errors import UnexpectedStatus
from pyrogram.errors import bad_request_400
from pyrogram.types import Message
from pytimeparse.timeparse import timeparse
from ujson import dumps, loads

from classes.enums.submission_types import SubmissionType
from classes.exceptions import (
    SubmissionDuplicatesError,
    SubmissionUnavailableError,
    SubmissionUnsupportedError,
)
from modules.api_client import (
    BodyPhotoUpload,
    BodyVideoUpload,
    File,
    Photo,
    Video,
    client,
    photo_upload,
    video_upload,
)
from modules.database import col_submitted
from modules.http_client import http_session
from modules.sender import send_content

logger = logging.getLogger(__name__)


from datetime import datetime
from typing import List, Union

from apscheduler.schedulers.asyncio import AsyncIOScheduler
from libbot.pyrogram.classes import PyroClient


class PyroClient(PyroClient):
    def __init__(self, scheduler: AsyncIOScheduler):
        super().__init__(scheduler=scheduler)

        self.version: float = 0.2

        self.owner: int = self.config["bot"]["owner"]
        self.admins: List[int] = self.config["bot"]["admins"] + [
            self.config["bot"]["owner"]
        ]

        self.sender_session = ClientSession()

        self.scopes_placeholders: Dict[str, int] = {
            "owner": self.owner,
            "comments": self.config["posting"]["comments"],
        }

    async def start(self):
        await super().start()

        if self.config["reports"]["update"]:
            try:
                async with ClientSession(
                    json_serialize=dumps,
                ) as http_session:
                    check_update = await http_session.get(
                        "https://git.end-play.xyz/api/v1/repos/profitroll/TelegramPoster/releases?page=1&limit=1"
                    )

                response = await check_update.json()

                if len(response) == 0:
                    raise ValueError("No bot releases on git found.")

                if float(response[0]["tag_name"].replace("v", "")) > self.version:
                    logger.info(
                        "New version %s found (current %s)",
                        response[0]["tag_name"].replace("v", ""),
                        self.version,
                    )
                    await self.send_message(
                        self.owner,
                        self._(
                            "update_available",
                            "message",
                        ).format(
                            response[0]["tag_name"],
                            response[0]["html_url"],
                            response[0]["body"],
                        ),
                    )
                else:
                    logger.info("No updates found, bot is up to date.")
            except bad_request_400.PeerIdInvalid:
                logger.warning(
                    "Could not send startup message to bot owner. Perhaps user has not started the bot yet."
                )
            except Exception as exp:
                logger.exception("Update check failed due to %s: %s", exp, format_exc())

        if self.config["mode"]["post"]:
            if self.config["posting"]["use_interval"]:
                self.scheduler.add_job(
                    send_content,
                    "interval",
                    seconds=timeparse(self.config["posting"]["interval"]),
                    args=[self, self.sender_session],
                )
            else:
                for entry in self.config["posting"]["time"]:
                    dt_obj = datetime.strptime(entry, "%H:%M")
                    self.scheduler.add_job(
                        send_content,
                        "cron",
                        hour=dt_obj.hour,
                        minute=dt_obj.minute,
                        args=[self, self.sender_session],
                    )

    async def stop(self):
        makedirs(self.config["locations"]["cache"], exist_ok=True)
        await json_write(
            {"timestamp": time()},
            Path(f"{self.config['locations']['cache']}/shutdown_time"),
        )

        await http_session.close()
        await self.sender_session.close()

        await super().stop()

    async def submit_media(
        self, id: str
    ) -> Tuple[Union[Message, None], Union[str, None]]:
        db_entry = col_submitted.find_one({"_id": ObjectId(id)})
        submission = None

        if db_entry is None:
            raise SubmissionUnavailableError()

        if db_entry["temp"]["uuid"] is None:
            try:
                submission = await self.get_messages(
                    db_entry["user"], db_entry["telegram"]["msg_id"]
                )
                filepath = await self.download_media(
                    submission, file_name=self.config["locations"]["tmp"] + sep
                )
            except Exception as exp:
                raise SubmissionUnavailableError() from exp

        elif not Path(
            f"{self.config['locations']['data']}/submissions/{db_entry['temp']['uuid']}/{db_entry['temp']['file']}",
        ).exists():
            raise SubmissionUnavailableError()
        else:
            filepath = Path(
                f"{self.config['locations']['data']}/submissions/{db_entry['temp']['uuid']}/{db_entry['temp']['file']}",
            )
            with contextlib.suppress(Exception):
                submission = await self.get_messages(
                    db_entry["user"], db_entry["telegram"]["msg_id"]
                )

        async with aiofiles.open(str(filepath), "rb") as fh:
            media_bytes = BytesIO(await fh.read())

        try:
            if db_entry["type"] == SubmissionType.PHOTO.value:
                response = await photo_upload(
                    self.config["posting"]["api"]["album"],
                    client=client,
                    multipart_data=BodyPhotoUpload(
                        File(media_bytes, filepath.name, "image/jpeg")
                    ),
                    ignore_duplicates=self.config["submission"]["allow_duplicates"],
                    compress=False,
                    caption="queue",
                )
            elif db_entry["type"] == SubmissionType.VIDEO.value:
                response = await video_upload(
                    self.config["posting"]["api"]["album"],
                    client=client,
                    multipart_data=BodyVideoUpload(
                        File(media_bytes, filepath.name, "video/*")
                    ),
                    caption="queue",
                )
            elif db_entry["type"] == SubmissionType.ANIMATION.value:
                response = await video_upload(
                    self.config["posting"]["api"]["album"],
                    client=client,
                    multipart_data=BodyVideoUpload(
                        File(media_bytes, filepath.name, "video/*")
                    ),
                    caption="queue",
                )
        except UnexpectedStatus as exp:
            raise SubmissionUnsupportedError(str(filepath)) from exp

        response_dict = (
            {}
            if not hasattr(response, "content")
            else loads(response.content.decode("utf-8"))
        )

        if "duplicates" in response_dict and len(response_dict["duplicates"]) > 0:
            duplicates = []
            for index, duplicate in enumerate(response_dict["duplicates"]):  # type: ignore
                if response_dict["access_token"] is None:
                    duplicates.append(
                        f"`{duplicate['id']}`:\n{self.config['posting']['api']['address_external']}/photos/{duplicate['id']}"
                    )
                else:
                    duplicates.append(
                        f"`{duplicate['id']}`:\n{self.config['posting']['api']['address_external']}/token/photo/{response_dict['access_token']}?id={index}"
                    )
            raise SubmissionDuplicatesError(str(filepath), duplicates)

        col_submitted.find_one_and_update(
            {"_id": ObjectId(id)}, {"$set": {"done": True}}
        )

        try:
            if db_entry["temp"]["uuid"] is not None:
                rmtree(
                    Path(
                        f"{self.config['locations']['data']}/submissions/{db_entry['temp']['uuid']}",
                    ),
                    ignore_errors=True,
                )
            else:
                remove(str(filepath))
        except (FileNotFoundError, NotADirectoryError):
            logger.error("Could not delete '%s' on submission accepted", filepath)

        return (
            submission,
            response.id if not hasattr(response, "parsed") else response.parsed.id,
        )

    async def ban_user(self, id: int) -> None:
        pass

    async def unban_user(self, id: int) -> None:
        pass