feat(python): 完成 Python 全量迁移——剩余平台、登录通道与公共层修复
- 新增 5sing/apple/xm/me/qt/lr 平台包与取流实现（含 xm-sign、MissEvan 签名、蜻蜓 HMAC、Apple developer token） - 新增 wy/kg/tx/lr 登录：扫码、手机号、账密（kg 20028 风控指纹）、cookie 绑定、kg/tx 续期 - request 层：保留多值 Set-Cookie；JSON body 紧凑化（修复 kg 网关验签）；直连不经系统代理（对齐 Node） - 登录路由统一 Body(embed=True)，修复扫码轮询 422；lifespan 接入登录续期调度 - ruff/format/pyright 全绿；14 平台真实联网与 HTTP 路由验证通过
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"""酷我歌单（对应 sdk/kw/playlist.ts）。
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在 `song_list` 之上做统一形状：
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* `get_playlist_detail(id, page, limit)` —— 服务端 1000 条/页，本地按 page/limit 开窗
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* `get_playlist_songs(id)` —— 聚合全部页曲目
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* `search_playlist` / `get_categories` / `get_category_playlists` / `get_recommended`
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推荐（getRcmPlayList）服务端 limit 固定 36，显式更小的 limit 在本地截断。
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"""
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from __future__ import annotations
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import math
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import re
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from typing import Any
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from app.sdk.platforms.kw import song_list
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SERVER_PAGE_SIZE = song_list.SONG_LIMIT
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MAX_SERVER_PAGES = 60
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_ID_PATTERNS = (
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re.compile(r"playlist_detail/(\d+)"),
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re.compile(r"/playlist/(\d+)"),
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re.compile(r"playlistId=(\d+)"),
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)
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_DIGEST_PREFIX_RE = re.compile(r"^digest-\w+__")
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def _js_number_or_raw(value: Any, default: Any = 0) -> Any:
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"""复现 JS 的 `Number(x) → isFinite ? 数字 : 原值` 语义。
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`format_play_count` 返回的是 `"1.2万"` 这类字符串，`Number("1.2万")` 是 NaN，
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原实现于是把原字符串原样传下去；能解析成数字的才转成数字。
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"""
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if value is None or value == "":
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return default
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try:
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num = float(value)
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except (TypeError, ValueError):
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return value
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if not math.isfinite(num):
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return value
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return int(num) if num.is_integer() else num
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def _to_number(value: Any) -> float:
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try:
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return float(value)
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except (TypeError, ValueError):
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return 0.0
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def _to_int(value: Any) -> int:
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return int(_to_number(value))
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def _first_non_empty(*values: Any) -> str:
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for value in values:
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if value is None:
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continue
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text = str(value).strip()
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if text:
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return text
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return ""
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def normalize_playlist_id(playlist_id: Any) -> str:
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"""歌单链接 → 裸 id；digest 前缀形态原样保留（交给 song_list 分流）。"""
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raw = "" if playlist_id is None else str(playlist_id).strip()
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if not raw:
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return ""
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for pattern in _ID_PATTERNS:
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match = pattern.search(raw)
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if match:
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return match.group(1)
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return raw
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def _to_summary(item: dict[str, Any]) -> dict[str, Any]:
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"""歌单摘要：在原始条目上补齐契约要求的 id/name/cover/trackCount/… 字段。"""
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playlist_id = str(item.get("id") or "").strip()
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plain_id = _DIGEST_PREFIX_RE.sub("", playlist_id)
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return {
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**item,
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"id": playlist_id,
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"name": str(item.get("name") or "").strip(),
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"cover": _first_non_empty(item.get("img"), item.get("cover")),
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# 原实现用 `??` 而非 `||`，total 为 0 时不会退化到 trackCount
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"trackCount": _to_int(item["total"] if item.get("total") is not None else item.get("trackCount")) or 0,
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"playCount": _js_number_or_raw(item.get("play_count")),
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"creator": _first_non_empty(item.get("author"), item.get("creator"), item.get("uname")),
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"description": _first_non_empty(item.get("desc"), item.get("description")),
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"link": f"http://www.kuwo.cn/playlist_detail/{plain_id}" if plain_id else "",
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"source": "kw",
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}
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def _windowed(result: dict[str, Any], page: int, limit: int) -> dict[str, Any]:
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"""推荐/分类接口的 limit 由服务端固定，显式更小时本地截断。"""
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requested = _to_int(limit)
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server_limit = _to_int(result.get("limit"))
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songs = [item for item in (_to_summary(raw) for raw in result.get("list") or []) if item["id"]]
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if requested > 0 and len(songs) > requested:
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songs = songs[:requested]
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effective = min(requested, server_limit) if requested > 0 and server_limit > 0 else server_limit
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return {
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"source": "kw",
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"list": songs,
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"page": page,
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"limit": effective or len(songs),
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"total": _to_int(result.get("total")) or len(songs),
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}
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async def search_playlist(keyword: str, page: int = 1, limit: int = 20) -> dict[str, Any]:
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word = str(keyword or "").strip()
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if not word:
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return {"source": "kw", "list": [], "page": page, "limit": limit, "total": 0}
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res = await song_list.search(word, page, limit)
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songs = [item for item in (_to_summary(raw) for raw in res.get("list") or []) if item["id"]]
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return {
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"source": "kw",
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"list": songs,
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"page": page,
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"limit": limit,
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"total": _to_int(res.get("total")) or len(songs),
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}
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async def get_playlist_detail(playlist_id: str, page: int = 1, limit: int = 50) -> dict[str, Any]:
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raw_id = normalize_playlist_id(playlist_id)
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if not raw_id:
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raise RuntimeError("酷我歌单 id 为空")
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page_no = max(1, _to_int(page) or 1)
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page_size = max(1, _to_int(limit) or 50)
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start = (page_no - 1) * page_size
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server_page = start // SERVER_PAGE_SIZE + 1
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skip = start % SERVER_PAGE_SIZE
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songs: list[dict[str, Any]] = []
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info: dict[str, Any] | None = None
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total = 0
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while len(songs) < page_size and server_page <= MAX_SERVER_PAGES:
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res = await song_list.get_list_detail(raw_id, server_page)
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if not res:
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break
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if info is None:
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info = res.get("info")
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total = _to_int(res.get("total")) or total
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raw_list = res.get("list") or []
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if not raw_list:
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break
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songs.extend(raw_list[skip : skip + (page_size - len(songs))])
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skip = 0
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if len(raw_list) < SERVER_PAGE_SIZE:
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break
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if total > 0 and server_page * SERVER_PAGE_SIZE >= total:
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break
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server_page += 1
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info = info or {}
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return {
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"source": "kw",
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"info": {
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"name": _first_non_empty(info.get("name"), raw_id),
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"img": _first_non_empty(info.get("img")),
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"desc": _first_non_empty(info.get("desc")),
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"author": _first_non_empty(info.get("author")),
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"play_count": info.get("play_count", ""),
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},
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"list": songs,
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"page": page_no,
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"limit": page_size,
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"total": total or len(songs),
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}
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async def get_playlist_songs(playlist_id: str) -> list[dict[str, Any]]:
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"""聚合全部页曲目并按 songmid 去重。"""
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raw_id = normalize_playlist_id(playlist_id)
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if not raw_id:
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raise RuntimeError("酷我歌单 id 为空")
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songs: list[dict[str, Any]] = []
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seen: set[str] = set()
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for server_page in range(1, MAX_SERVER_PAGES + 1):
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res = await song_list.get_list_detail(raw_id, server_page)
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raw_list = res.get("list") or []
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for song in raw_list:
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key = str(song.get("songmid") or "")
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if key and key in seen:
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continue
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if key:
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seen.add(key)
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songs.append(song)
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total = _to_int(res.get("total"))
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if len(raw_list) < SERVER_PAGE_SIZE:
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break
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if total > 0 and len(songs) >= total:
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break
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return songs
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async def get_categories() -> dict[str, Any]:
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tags_data = await song_list.get_tags()
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hot_ids = {str(item.get("id") or "") for item in tags_data.get("hotTag") or []}
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result: list[dict[str, Any]] = [{"id": "", "name": "全部", "group": "全部"}]
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for group in tags_data.get("tags") or []:
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for item in group.get("list") or []:
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tag_id = str(item.get("id") or "").strip()
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name = str(item.get("name") or "").strip()
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if not tag_id or not name:
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continue
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result.append(
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{
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"id": tag_id,
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"name": name,
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"group": str(group.get("name") or "").strip() or "其他",
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"hot": tag_id in hot_ids,
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}
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)
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return {"source": "kw", "list": result}
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async def get_category_playlists(category_id: str, page: int = 1, limit: int = 20) -> dict[str, Any]:
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tag_id = str(category_id or "").strip()
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page_no = max(1, _to_int(page) or 1)
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res = await song_list.get_list("hot", tag_id or None, page_no)
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return _windowed(res, page_no, limit)
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async def get_recommended(page: int = 1, limit: int = 30) -> dict[str, Any]:
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page_no = max(1, _to_int(page) or 1)
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res = await song_list.get_list("hot", None, page_no)
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return _windowed(res, page_no, limit)
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async def parse_playlist_link(link: str) -> dict[str, Any]:
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raw = str(link or "")
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for pattern in _ID_PATTERNS:
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match = pattern.search(raw)
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if match:
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return await get_playlist_detail(match.group(1), 1)
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raise RuntimeError("无效的酷我歌单链接")
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__all__ = [
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"get_categories",
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"get_category_playlists",
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"get_playlist_detail",
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"get_playlist_songs",
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"get_recommended",
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"normalize_playlist_id",
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"parse_playlist_link",
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"search_playlist",
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]
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