import copy import json import re from typing import Any, Optional, Dict, Union from app.chain import ChainBase from app.chain.download import DownloadChain from app.chain.media import MediaChain from app.chain.search import SearchChain from app.chain.subscribe import SubscribeChain from app.core.config import settings from app.core.context import MediaInfo, Context from app.core.event import EventManager from app.core.meta import MetaBase from app.helper.torrent import TorrentHelper from app.log import logger from app.schemas import Notification, NotExistMediaInfo from app.schemas.types import EventType, MessageChannel, MediaType from app.utils.string import StringUtils # 当前页面 _current_page: int = 0 # 当前元数据 _current_meta: Optional[MetaBase] = None # 当前媒体信息 _current_media: Optional[MediaInfo] = None class MessageChain(ChainBase): """ 外来消息处理链 """ # 缓存的用户数据 {userid: {type: str, items: list}} _cache_file = "__user_messages__" # 每页数据量 _page_size: int = 8 def __init__(self): super().__init__() self.downloadchain = DownloadChain() self.subscribechain = SubscribeChain() self.searchchain = SearchChain() self.mediachain = MediaChain() self.eventmanager = EventManager() self.torrenthelper = TorrentHelper() @staticmethod def __get_noexits_info( _meta: MetaBase, _mediainfo: MediaInfo) -> Dict[Union[int, str], Dict[int, NotExistMediaInfo]]: """ 获取缺失的媒体信息 """ if _mediainfo.type == MediaType.TV: _mediakey = _mediainfo.tmdb_id or _mediainfo.douban_id _no_exists = { _mediakey: {} } if _meta.begin_season: episodes = _mediainfo.seasons.get(_meta.begin_season) if not episodes: return {} _no_exists[_mediakey][_meta.begin_season] = NotExistMediaInfo( season=_meta.begin_season, episodes=[], total_episode=len(episodes), start_episode=episodes[0] ) else: for sea, eps in _mediainfo.seasons.items(): if not eps: continue _no_exists[_mediakey][sea] = NotExistMediaInfo( season=sea, episodes=[], total_episode=len(eps), start_episode=eps[0] ) else: _no_exists = {} return _no_exists def process(self, body: Any, form: Any, args: Any) -> None: """ 识别消息内容，执行操作 """ # 申明全局变量 global _current_page, _current_meta, _current_media # 获取消息内容 info = self.message_parser(body=body, form=form, args=args) if not info: return # 渠道 channel = info.channel # 用户ID userid = info.userid # 用户名 username = info.username if not userid: logger.debug(f'未识别到用户ID：{body}{form}{args}') return # 消息内容 text = str(info.text).strip() if info.text else None if not text: logger.debug(f'未识别到消息内容：：{body}{form}{args}') return # 加载缓存 user_cache: Dict[str, dict] = self.load_cache(self._cache_file) or {} # 处理消息 logger.info(f'收到用户消息内容，用户：{userid}，内容：{text}') if text.startswith('/'): # 执行命令 self.eventmanager.send_event( EventType.CommandExcute, { "cmd": text, "user": userid, "channel": channel } ) elif text.isdigit(): # 用户选择了具体的条目 # 缓存 cache_data: dict = user_cache.get(userid) # 选择项目 if not cache_data \ or not cache_data.get('items') \ or len(cache_data.get('items')) < int(text): # 发送消息 self.post_message(Notification(channel=channel, title="输入有误！", userid=userid)) return # 选择的序号 _choice = int(text) + _current_page * self._page_size - 1 # 缓存类型 cache_type: str = cache_data.get('type') # 缓存列表 cache_list: list = copy.deepcopy(cache_data.get('items')) # 选择 if cache_type in ["Search", "ReSearch"]: # 当前媒体信息 mediainfo: MediaInfo = cache_list[_choice] _current_media = mediainfo # 查询缺失的媒体信息 exist_flag, no_exists = self.downloadchain.get_no_exists_info(meta=_current_meta, mediainfo=_current_media) if exist_flag and cache_type == "Search": # 媒体库中已存在 self.post_message( Notification(channel=channel, title=f"{_current_media.title_year}" f"{_current_meta.sea} 媒体库中已存在，如需重新下载请发送：搜索 XXX 或 下载 XXX", userid=userid)) return elif exist_flag: # 没有缺失，但要全量重新搜索和下载 no_exists = self.__get_noexits_info(_current_meta, _current_media) # 发送缺失的媒体信息 messages = [] if no_exists and cache_type == "Search": # 发送缺失消息 mediakey = mediainfo.tmdb_id or mediainfo.douban_id messages = [ f"第 {sea} 季缺失 {StringUtils.str_series(no_exist.episodes) if no_exist.episodes else no_exist.total_episode} 集" for sea, no_exist in no_exists.get(mediakey).items()] elif no_exists: # 发送总集数的消息 mediakey = mediainfo.tmdb_id or mediainfo.douban_id messages = [ f"第 {sea} 季总 {no_exist.total_episode} 集" for sea, no_exist in no_exists.get(mediakey).items()] if messages: self.post_message(Notification(channel=channel, title=f"{mediainfo.title_year}：\n" + "\n".join(messages), userid=userid)) # 搜索种子，过滤掉不需要的剧集，以便选择 logger.info(f"开始搜索 {mediainfo.title_year} ...") self.post_message( Notification(channel=channel, title=f"开始搜索 {mediainfo.type.value} {mediainfo.title_year} ...", userid=userid)) # 开始搜索 contexts = self.searchchain.process(mediainfo=mediainfo, no_exists=no_exists) if not contexts: # 没有数据 self.post_message(Notification( channel=channel, title=f"{mediainfo.title}" f"{_current_meta.sea} 未搜索到需要的资源！", userid=userid)) return # 搜索结果排序 contexts = self.torrenthelper.sort_torrents(contexts) # 判断是否设置自动下载 auto_download_user = settings.AUTO_DOWNLOAD_USER # 匹配到自动下载用户 if auto_download_user \ and (auto_download_user == "all" or any(userid == user for user in auto_download_user.split(","))): logger.info(f"用户 {userid} 在自动下载用户中，开始自动择优下载 ...") # 自动选择下载 self.__auto_download(channel=channel, cache_list=contexts, userid=userid, username=username, no_exists=no_exists) else: # 更新缓存 user_cache[userid] = { "type": "Torrent", "items": contexts } # 发送种子数据 logger.info(f"搜索到 {len(contexts)} 条数据，开始发送选择消息 ...") self.__post_torrents_message(channel=channel, title=mediainfo.title, items=contexts[:self._page_size], userid=userid, total=len(contexts)) elif cache_type in ["Subscribe", "ReSubscribe"]: # 订阅或洗版媒体 mediainfo: MediaInfo = cache_list[_choice] # 洗版标识 best_version = False # 查询缺失的媒体信息 if cache_type == "Subscribe": exist_flag, _ = self.downloadchain.get_no_exists_info(meta=_current_meta, mediainfo=mediainfo) if exist_flag: self.post_message(Notification( channel=channel, title=f"{mediainfo.title_year}" f"{_current_meta.sea} 媒体库中已存在，如需洗版请发送：洗版 XXX", userid=userid)) return else: best_version = True # 添加订阅，状态为N self.subscribechain.add(title=mediainfo.title, year=mediainfo.year, mtype=mediainfo.type, tmdbid=mediainfo.tmdb_id, season=_current_meta.begin_season, channel=channel, userid=userid, username=username, best_version=best_version) elif cache_type == "Torrent": if int(text) == 0: # 自动选择下载，强制下载模式 self.__auto_download(channel=channel, cache_list=cache_list, userid=userid, username=username) else: # 下载种子 context: Context = cache_list[_choice] # 下载 self.downloadchain.download_single(context, userid=userid, channel=channel, username=username) elif text.lower() == "p": # 上一页 cache_data: dict = user_cache.get(userid) if not cache_data: # 没有缓存 self.post_message(Notification( channel=channel, title="输入有误！", userid=userid)) return if _current_page == 0: # 第一页 self.post_message(Notification( channel=channel, title="已经是第一页了！", userid=userid)) return # 减一页 _current_page -= 1 cache_type: str = cache_data.get('type') # 产生副本，避免修改原值 cache_list: list = copy.deepcopy(cache_data.get('items')) if _current_page == 0: start = 0 end = self._page_size else: start = _current_page * self._page_size end = start + self._page_size if cache_type == "Torrent": # 发送种子数据 self.__post_torrents_message(channel=channel, title=_current_media.title, items=cache_list[start:end], userid=userid, total=len(cache_list)) else: # 发送媒体数据 self.__post_medias_message(channel=channel, title=_current_meta.name, items=cache_list[start:end], userid=userid, total=len(cache_list)) elif text.lower() == "n": # 下一页 cache_data: dict = user_cache.get(userid) if not cache_data: # 没有缓存 self.post_message(Notification( channel=channel, title="输入有误！", userid=userid)) return cache_type: str = cache_data.get('type') # 产生副本，避免修改原值 cache_list: list = copy.deepcopy(cache_data.get('items')) total = len(cache_list) # 加一页 cache_list = cache_list[ (_current_page + 1) * self._page_size:(_current_page + 2) * self._page_size] if not cache_list: # 没有数据 self.post_message(Notification( channel=channel, title="已经是最后一页了！", userid=userid)) return else: # 加一页 _current_page += 1 if cache_type == "Torrent": # 发送种子数据 self.__post_torrents_message(channel=channel, title=_current_media.title, items=cache_list, userid=userid, total=total) else: # 发送媒体数据 self.__post_medias_message(channel=channel, title=_current_meta.name, items=cache_list, userid=userid, total=total) else: # 搜索或订阅 if text.startswith("订阅"): # 订阅 content = re.sub(r"订阅[:：\s]*", "", text) action = "Subscribe" elif text.startswith("洗版"): # 洗版 content = re.sub(r"洗版[:：\s]*", "", text) action = "ReSubscribe" elif text.startswith("搜索") or text.startswith("下载"): # 重新搜索/下载 content = re.sub(r"(搜索|下载)[:：\s]*", "", text) action = "ReSearch" elif text.startswith("#") \ or re.search(r"^请[问帮你]", text) \ or re.search(r"[?？]$", text) \ or StringUtils.count_words(text) > 10 \ or text.find("继续") != -1: # 聊天 content = text action = "chat" else: # 搜索 content = text action = "Search" if action != "chat": # 搜索 meta, medias = self.mediachain.search(content) # 识别 if not meta.name: self.post_message(Notification( channel=channel, title="无法识别输入内容！", userid=userid)) return # 开始搜索 if not medias: self.post_message(Notification( channel=channel, title=f"{meta.name} 没有找到对应的媒体信息！", userid=userid)) return logger.info(f"搜索到 {len(medias)} 条相关媒体信息") # 记录当前状态 _current_meta = meta user_cache[userid] = { 'type': action, 'items': medias } _current_page = 0 _current_media = None # 发送媒体列表 self.__post_medias_message(channel=channel, title=meta.name, items=medias[:self._page_size], userid=userid, total=len(medias)) else: # 广播事件 self.eventmanager.send_event( EventType.UserMessage, { "text": content, "userid": userid, "channel": channel } ) # 保存缓存 self.save_cache(user_cache, self._cache_file) def __auto_download(self, channel: MessageChannel, cache_list: list[Context], userid: Union[str, int], username: str, no_exists: Optional[Dict[Union[int, str], Dict[int, NotExistMediaInfo]]] = None): """ 自动择优下载 """ if no_exists is None: # 查询缺失的媒体信息 exist_flag, no_exists = self.downloadchain.get_no_exists_info( meta=_current_meta, mediainfo=_current_media ) if exist_flag: # 媒体库中已存在，查询全量 no_exists = self.__get_noexits_info(_current_meta, _current_media) # 批量下载 downloads, lefts = self.downloadchain.batch_download(contexts=cache_list, no_exists=no_exists, channel=channel, userid=userid, username=username) if downloads and not lefts: # 全部下载完成 logger.info(f'{_current_media.title_year} 下载完成') else: # 未完成下载 logger.info(f'{_current_media.title_year} 未下载未完整，添加订阅 ...') if downloads and _current_media.type == MediaType.TV: # 获取已下载剧集 downloaded = [download.meta_info.begin_episode for download in downloads if download.meta_info.begin_episode] note = json.dumps(downloaded) else: note = None # 添加订阅，状态为R self.subscribechain.add(title=_current_media.title, year=_current_media.year, mtype=_current_media.type, tmdbid=_current_media.tmdb_id, season=_current_meta.begin_season, channel=channel, userid=userid, username=username, state="R", note=note) def __post_medias_message(self, channel: MessageChannel, title: str, items: list, userid: str, total: int): """ 发送媒体列表消息 """ if total > self._page_size: title = f"【{title}】共找到{total}条相关信息，请回复对应数字选择（p: 上一页 n: 下一页）" else: title = f"【{title}】共找到{total}条相关信息，请回复对应数字选择" self.post_medias_message(Notification( channel=channel, title=title, userid=userid ), medias=items) def __post_torrents_message(self, channel: MessageChannel, title: str, items: list, userid: str, total: int): """ 发送种子列表消息 """ if total > self._page_size: title = f"【{title}】共找到{total}条相关资源，请回复对应数字下载（0: 自动选择 p: 上一页 n: 下一页）" else: title = f"【{title}】共找到{total}条相关资源，请回复对应数字下载（0: 自动选择）" self.post_torrents_message(Notification( channel=channel, title=title, userid=userid ), torrents=items)