mirror of
https://github.com/jxxghp/MoviePilot.git
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69 lines
2.9 KiB
Python
69 lines
2.9 KiB
Python
"""AMLL 歌词来源的录音身份核对规则。"""
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import re
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import unicodedata
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from typing import Any
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from app.domain.context import MusicInfo
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from app.domain.meta.metamusic import MetaMusic
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def normalize_text(value: str) -> str:
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"""统一字形、大小写和标点，保留现场版等版本文字参与精确比较。"""
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return re.sub(r"[^\w]", "", unicodedata.normalize("NFKC", value).casefold())
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def normalize_isrc(value: str | None) -> str:
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"""接受带空格或连字符的 ISRC，拒绝不完整的录音标识。"""
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normalized = re.sub(r"[\s-]", "", value or "").upper()
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return normalized if re.fullmatch(r"[A-Z]{2}[A-Z0-9]{3}\d{7}", normalized) else ""
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def text_values(payload: dict[str, Any], key: str) -> list[str]:
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"""只接收来源声明的字符串列表，避免异常 JSON 值参与身份匹配。"""
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values = payload.get(key)
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if not isinstance(values, list):
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return []
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return [value.strip() for value in values if isinstance(value, str) and value.strip()]
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def search_identity(music: MetaMusic | MusicInfo) -> tuple[str, list[str], str]:
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"""提取当前单曲的完整标题、艺术家和专辑，不丢弃独立版本标记。"""
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title = str(music.title or "").strip()
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version = str(music.version or "").strip()
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suffix = re.search(r"[\[(（]([^\])）]+)[\])）]\s*$", title)
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has_version = suffix is not None and normalize_text(suffix.group(1)) == normalize_text(version)
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if version and not has_version:
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title = f"{title} ({version})" if title else ""
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artist_values = list(music.artists or [])
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if not artist_values and music.album_artist:
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artist_values.append(music.album_artist)
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artists = [artist.strip() for artist in artist_values if artist.strip()]
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return title, artists, str(music.album or "").strip()
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def match_score(music: MetaMusic | MusicInfo, payload: dict[str, Any]) -> int:
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"""严格核对标题别名、艺术家及已有专辑，AMLL 时间戳不用于音轨时长比较。"""
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title, artists, album = search_identity(music)
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if not title or not artists:
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return 0
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if normalize_text(title) not in {normalize_text(value) for value in text_values(payload, "musicNames")}:
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return 0
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expected_artists = {normalize_text(value) for value in artists}
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source_artists = {normalize_text(value) for value in text_values(payload, "artistNames")}
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if not expected_artists <= source_artists:
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return 0
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if album and normalize_text(album) not in {
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normalize_text(value) for value in text_values(payload, "albumNames")
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}:
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return 0
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return 95 if album else 90
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def lyric_id(payload: dict[str, Any]) -> str:
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"""校验原生 API 的正整数歌词 ID，用于下载与详情一致性检查。"""
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value = payload.get("id")
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if isinstance(value, bool) or not isinstance(value, int) or not 0 < value < 2 ** 53:
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return ""
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return str(value)
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