import json
import re
from typing import Any, Optional

import httpx

from ..post import Post
from ..types import Category, RawPost, Tag, Target
from .platform import CategoryNotSupport, NewMessage, Platform


class Bilibili(NewMessage):

    categories = {
        1: "一般动态",
        2: "专栏文章",
        3: "视频",
        4: "纯文字",
        5: "转发"
        # 5: "短视频"
    }
    platform_name = "bilibili"
    enable_tag = True
    enabled = True
    is_common = True
    schedule_type = "interval"
    schedule_kw = {"seconds": 10}
    name = "B站"
    has_target = True
    parse_target_promot = "请输入用户主页的链接"

    async def get_target_name(self, target: Target) -> Optional[str]:
        async with httpx.AsyncClient() as client:
            res = await client.get(
                "https://api.bilibili.com/x/space/acc/info", params={"mid": target}
            )
            res_data = json.loads(res.text)
            if res_data["code"]:
                return None
            return res_data["data"]["name"]

    async def parse_target(self, target_text: str) -> Target:
        if re.match(r"\d+", target_text):
            return Target(target_text)
        elif match := re.match(r"(?:https://)?space.bilibili.com/(\d+)", target_text):
            return Target(match.group(1))
        else:
            raise Platform.ParseTargetException()

    async def get_sub_list(self, target: Target) -> list[RawPost]:
        async with httpx.AsyncClient() as client:
            params = {"host_uid": target, "offset": 0, "need_top": 0}
            res = await client.get(
                "https://api.vc.bilibili.com/dynamic_svr/v1/dynamic_svr/space_history",
                params=params,
                timeout=4.0,
            )
            res_dict = json.loads(res.text)
            if res_dict["code"] == 0:
                return res_dict["data"]["cards"]
            else:
                return []

    def get_id(self, post: RawPost) -> Any:
        return post["desc"]["dynamic_id"]

    def get_date(self, post: RawPost) -> int:
        return post["desc"]["timestamp"]

    def _do_get_category(self, post_type: int) -> Category:
        if post_type == 2:
            return Category(1)
        elif post_type == 64:
            return Category(2)
        elif post_type == 8:
            return Category(3)
        elif post_type == 4:
            return Category(4)
        elif post_type == 1:
            # 转发
            return Category(5)
        raise CategoryNotSupport()

    def get_category(self, post: RawPost) -> Category:
        post_type = post["desc"]["type"]
        return self._do_get_category(post_type)

    def get_tags(self, raw_post: RawPost) -> list[Tag]:
        return [
            *map(
                lambda tp: tp["topic_name"],
                raw_post["display"]["topic_info"]["topic_details"],
            )
        ]

    def _get_info(self, post_type: Category, card) -> tuple[str, list]:
        if post_type == 1:
            # 一般动态
            text = card["item"]["description"]
            pic = [img["img_src"] for img in card["item"]["pictures"]]
        elif post_type == 2:
            # 专栏文章
            text = "{} {}".format(card["title"], card["summary"])
            pic = card["image_urls"]
        elif post_type == 3:
            # 视频
            text = card["dynamic"]
            pic = [card["pic"]]
        elif post_type == 4:
            # 纯文字
            text = card["item"]["content"]
            pic = []
        else:
            raise CategoryNotSupport()
        return text, pic

    async def parse(self, raw_post: RawPost) -> Post:
        card_content = json.loads(raw_post["card"])
        post_type = self.get_category(raw_post)
        target_name = raw_post["desc"]["user_profile"]["info"]["uname"]
        if post_type >= 1 and post_type < 5:
            url = ""
            if post_type == 1:
                # 一般动态
                url = "https://t.bilibili.com/{}".format(
                    raw_post["desc"]["dynamic_id_str"]
                )
            elif post_type == 2:
                # 专栏文章
                url = "https://www.bilibili.com/read/cv{}".format(
                    raw_post["desc"]["rid"]
                )
            elif post_type == 3:
                # 视频
                url = "https://www.bilibili.com/video/{}".format(
                    raw_post["desc"]["bvid"]
                )
            elif post_type == 4:
                # 纯文字
                url = "https://t.bilibili.com/{}".format(
                    raw_post["desc"]["dynamic_id_str"]
                )
            text, pic = self._get_info(post_type, card_content)
        elif post_type == 5:
            # 转发
            url = "https://t.bilibili.com/{}".format(raw_post["desc"]["dynamic_id_str"])
            text = card_content["item"]["content"]
            orig_type = card_content["item"]["orig_type"]
            orig = json.loads(card_content["origin"])
            orig_text, _ = self._get_info(self._do_get_category(orig_type), orig)
            text += "\n--------------\n"
            text += orig_text
            pic = []
        else:
            raise CategoryNotSupport(post_type)
        return Post("bilibili", text=text, url=url, pics=pic, target_name=target_name)