71 lines
2.4 KiB
TypeScript
71 lines
2.4 KiB
TypeScript
import parseTorrentName from 'parse-torrent-name';
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export interface ParsedVideoInfo {
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episode?: number;
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season?: number;
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title?: string;
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isOVA?: boolean;
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}
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/**
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* 解析视频文件名
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*/
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export function parseVideoFileName(fileName: string): ParsedVideoInfo {
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try {
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const parsed = parseTorrentName(fileName);
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// 如果 parse-torrent-name 成功解析出集数，直接返回
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if (parsed.episode) {
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return {
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episode: parsed.episode,
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season: parsed.season,
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title: parsed.title,
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};
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}
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} catch (error) {
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console.error('parse-torrent-name 解析失败:', fileName, error);
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}
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// 降级方案：使用多种正则模式提取集数
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// 按优先级排序：更具体的模式优先
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const patterns: Array<{ pattern: RegExp; isOVA?: boolean; extractSeason?: boolean }> = [
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// OVA01, OVA 01, ova01, ova 01 (OVA特殊处理) - 最优先
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{ pattern: /OVA\s*(\d+(?:\.\d+)?)/i, isOVA: true },
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// S01E01, s01e01, S01E1234, S01E01.5 (支持1-4位数字和小数) - 最具体
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{ pattern: /[Ss](\d+)[Ee](\d{1,4}(?:\.\d+)?)/, extractSeason: true },
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// [01], (01), [01.5], (01.5) (支持小数，但要排除中文括号内容) - 很具体
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{ pattern: /[[(](\d+(?:\.\d+)?)[)\]]/ },
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// E01, E1, e01, e1, E01.5 (支持小数)
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{ pattern: /[Ee](\d+(?:\.\d+)?)/ },
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// 第01集, 第1集, 第01话, 第1话, 第1.5集 (支持小数)
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{ pattern: /第(\d+(?:\.\d+)?)[集话]/ },
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// _01_, -01-, _01.5_, -01.5- (支持小数)
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{ pattern: /[_-](\d+(?:\.\d+)?)[_-]/ },
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// 01.mp4, 001.mp4, 01.5.mp4 (纯数字开头，支持小数) - 最不具体
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{ pattern: /^(\d+(?:\.\d+)?)[^\d.]/ },
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];
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for (const { pattern, isOVA, extractSeason } of patterns) {
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const match = fileName.match(pattern);
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if (match && match[1]) {
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if (extractSeason && match[2]) {
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// 同时提取 season 和 episode
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const season = parseInt(match[1]);
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const episode = parseFloat(match[2]);
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if (season > 0 && season < 100 && episode > 0 && episode < 10000) {
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return { season, episode };
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}
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} else {
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// 只提取 episode
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const episode = parseFloat(match[1]);
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if (episode > 0 && episode < 10000) {
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return { episode, isOVA };
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}
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}
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}
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}
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// 如果所有模式都失败，返回空对象（调用方会处理）
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return {};
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}
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