from typing import Generator

from aiohttp import ClientSession
from telegram import (
    InlineQueryResultPhoto,
    InlineQueryResultVideo,
    InputMediaPhoto,
    InputMediaVideo
)
from common import x_url_regex, x_media_regex, x_tco_regex

twimg_url = 'https://pbs.twimg.com/'
vx_api_url = 'https://api.vxtwitter.com/status/'

message_raw_text = """{url}
<a href="{author_url}">{author}</a>: {text}
"""


async def fetch_json(session: ClientSession, url: str) -> dict:
    async with session.get(url) as response:
        assert response.status == 200
        return await response.json()


class TweetMedia:
    def __init__(self, url: str, thumb: str, media_type: str):
        self._url: str = url
        self._thumb: str = thumb
        self._type: str = media_type

    @property
    def _uri(self) -> str | None:
        match = x_media_regex.match(self._url)
        if match:
            return match.group(2).removesuffix('.jpg')
        return None

    @property
    def url(self) -> str:
        match self._type:
            case "image":
                return f"{twimg_url}{self._uri}?format=jpg&name=orig"
            case "video":
                return self._url

    @property
    def thumb(self) -> str:
        match self._type:
            case "image":
                return f"{twimg_url}{self._uri}?format=jpg&name=thumb"
            case "video":
                return self._thumb

    @property
    def type(self) -> str:
        return self._type


class Tweet:
    def __init__(
            self,
            tweet_id: str,
            author: str,
            author_id: str,
            text: str,
            media: list[TweetMedia],
            sensitive: bool = False
    ):
        self._id: str = tweet_id
        self._author: str = author
        self._author_id: str = author_id
        self._text: str = text
        self._media: list[TweetMedia] = media
        self._sensitive: bool = sensitive

    @property
    def id(self) -> str:
        return self._id

    @property
    def url(self) -> str:
        return f"https://twitter.com/{self._author_id}/status/{self._id}"

    @property
    def author(self) -> str:
        return self._author

    @property
    def author_url(self) -> str:
        return f"https://twitter.com/{self._author_id}"

    @property
    def text(self) -> str:
        return self._text

    @property
    def media(self) -> list[TweetMedia]:
        return self._media

    @property
    def sensitive(self) -> bool:
        return self._sensitive


class TGTweet(Tweet):
    def __init__(self, session: ClientSession, url: str):
        self._session: ClientSession = session
        self._url: str = url
        self._id: str = self._tweet_id
        assert self._id

    async def __aenter__(self):
        self._tweet: dict = await self._fetch_tweet(self._id)
        super().__init__(*self._init_properties)
        return self

    async def __aexit__(self, exc_type, exc_val, exc_tb):
        pass

    async def _fetch_tweet(self, tweet_id: str) -> dict:
        return await fetch_json(self._session, vx_api_url + tweet_id)

    @property
    def _tweet_id(self) -> str | None:
        match = x_url_regex.match(self._url)
        if match:
            return match.group(1).strip('/')
        return None

    @property
    def _tweet_text(self) -> str:
        match = x_tco_regex.search(self._tweet['text'])
        return self._tweet['text'][:match.start()].strip(" ") if match else self._tweet['text']

    @property
    def _tweet_media(self) -> list[TweetMedia]:
        return [
            TweetMedia(
                url=x['url'],
                thumb=x['thumbnail_url'],
                media_type=x['type']
            )
            for x in self._tweet['media_extended']
        ]

    @property
    def _init_properties(self) -> tuple:
        author = self._tweet['user_name']
        author_id = self._tweet['user_screen_name']
        text = self._tweet_text
        media = self._tweet_media
        sensitive = self._tweet['possibly_sensitive']
        return self._id, author, author_id, text, media, sensitive

    @property
    def message_text(self) -> str:
        return message_raw_text.format(
            url=self.url,
            author_url=self.author_url,
            author=self.author,
            text=self.text
        )

    @property
    def inline_query_generator(self) -> Generator[InlineQueryResultPhoto | InlineQueryResultVideo, None, None]:
        for i, tweet_media in enumerate(self.media):
            if tweet_media.type == "image":
                yield InlineQueryResultPhoto(
                    id=self.id,
                    photo_url=tweet_media.url,
                    thumbnail_url=tweet_media.thumb,
                    title=self.url,
                    description=self.text,
                    caption=self.message_text if not i else None
                )
            elif tweet_media.type == "video":
                yield InlineQueryResultVideo(
                    id=self.id,
                    video_url=tweet_media.url,
                    mime_type="video/mp4",
                    thumbnail_url=tweet_media.thumb,
                    title=self.url,
                    description=self.text,
                    caption=self.message_text if not i else None
                )

    @property
    def pm_media_generator(self) -> Generator[InputMediaPhoto | InputMediaVideo, None, None]:
        for tweet_media in self.media:
            if tweet_media.type == "image":
                yield InputMediaPhoto(
                    media=tweet_media.url,
                    has_spoiler=self.sensitive
                )
            elif tweet_media.type == "video":
                yield InputMediaVideo(
                    media=tweet_media.url,
                    has_spoiler=self.sensitive,
                    thumbnail=tweet_media.thumb
                )