Fqzlrのblog

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export interface LrcLine {
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  time: number; // 秒
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  text: string;
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}
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export function parseLrc(raw: string): LrcLine[] {
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  const lines: LrcLine[] = [];
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  for (const line of raw.split(/\r?\n/)) {
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    // 一行可能有多个时间标签（合并重复句），全部展开
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    const times = [...line.matchAll(/\[(\d+):(\d+)(?:\.(\d+))?\]/g)];
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    if (times.length === 0) continue;
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    const text = line.replace(/\[(\d+):(\d+)(?:\.(\d+))?\]/g, "").trim();
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    for (const m of times) {
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      const time = Number(m[1]) * 60 + Number(m[2]) + Number(`0.${m[3] ?? "0"}`);
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      lines.push({ time, text });
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    }
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  }
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  return lines.sort((a, b) => a.time - b.time);
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}

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export function currentLrcIndexAt(lines: LrcLine[], t: number): number {
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  let index = -1;
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  for (let i = 0; i < lines.length; i++) {
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    if (lines[i].time <= t) index = i;
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    else break;
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  }
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  return index;
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}

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export const musicTracks = [
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  {
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    id: "koufue",
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    title: "口笛で愛は歌えない",
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    artist: "Dazbee",
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    cover: "/assets/music/cover/dazbee.webp",
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    src: "/assets/music/audio/koufue.mp3",
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    // 歌词：远端 .lrc 地址或内嵌 LRC 文本均可
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    lrc: "/assets/music/lrc/koufue.lrc",
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  },
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  // ...
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];

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// Meting 曲目解析时保留 lrc 字段
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if (metingLrc) {
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  track.lrc = metingLrc; // 透传，下游统一懒加载解析
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}