过滤嵌入、下载的翻译、罗马音歌词时间标签（#1358）

src/renderer/worker/download/common.ts

@@ -1,7 +1,8 @@
 import { setMeta } from '@common/utils/musicMeta'
+import { mergeLyrics } from './lrcTool'
 
-export const writeMeta = (filePath: string, meta: LX.Music.MusicFileMeta) => {
-  setMeta(filePath, meta)
+export const writeMeta = (filePath: string, meta: Omit<LX.Music.MusicFileMeta, 'lyrics'>, lyricData: { lrc: string, tlrc: string | null, rlrc: string | null }) => {
+  setMeta(filePath, { ...meta, lyrics: mergeLyrics(lyricData.lrc, lyricData.tlrc, lyricData.rlrc) || null })
 }
 
 export { saveLrc } from './utils'

src/renderer/worker/download/lrcTool.ts

@@ -0,0 +1,74 @@
+const timeFieldExp = /^(?:\[[\d:.]+\])+/g
+const timeExp = /\d{1,3}(:\d{1,3}){0,2}(?:\.\d{1,3})/g
+
+const t_rxp_1 = /^0+(\d+)/
+const t_rxp_2 = /:0+(\d+)/g
+const t_rxp_3 = /\.0+(\d+)/
+const formatTimeLabel = (label: string) => {
+  return label.replace(t_rxp_1, '$1')
+    .replace(t_rxp_2, ':$1')
+    .replace(t_rxp_3, '.$1')
+}
+
+const filterExtendedLyricLabel = (lrcTimeLabels: Set<string>, extendedLyric: string) => {
+  const extendedLines = extendedLyric.split(/\r\n|\n|\r/)
+  const lines: string[] = []
+  for (let i = 0; i < extendedLines.length; i++) {
+    let line = extendedLines[i].trim()
+    let result = timeFieldExp.exec(line)
+    if (!result) continue
+
+    const timeField = result[0]
+    const text = line.replace(timeFieldExp, '').trim()
+    if (!text) continue
+    let times = timeField.match(timeExp)
+    if (times == null) continue
+
+    const newTimes = times.filter(time => {
+      const timeStr = formatTimeLabel(time)
+      return lrcTimeLabels.has(timeStr)
+    })
+    if (newTimes.length != times.length) {
+      if (!newTimes.length) continue
+      line = `[${newTimes.join('][')}]${text}`
+    }
+    lines.push(line)
+  }
+
+  return lines.join('\n')
+}
+
+const parseLrcTimeLabel = (lrc: string) => {
+  const lines = lrc.split(/\r\n|\n|\r/)
+  const linesSet = new Set<string>()
+  const length = lines.length
+  for (let i = 0; i < length; i++) {
+    const line = lines[i].trim()
+    let result = timeFieldExp.exec(line)
+    if (result) {
+      const timeField = result[0]
+      const text = line.replace(timeFieldExp, '').trim()
+      if (text) {
+        const times = timeField.match(timeExp)
+        if (times == null) continue
+        for (let time of times) {
+          linesSet.add(formatTimeLabel(time))
+        }
+      }
+    }
+  }
+
+  return linesSet
+}
+
+
+export const mergeLyrics = (lrc: string, tlrc: string | null, rlrc: string | null) => {
+  if (!tlrc && !rlrc) return lrc
+
+  const lrcTimeLabels = parseLrcTimeLabel(lrc)
+  // console.log(lrcTimeLabels)
+  if (tlrc) lrc += `\n\n${filterExtendedLyricLabel(lrcTimeLabels, tlrc)}\n`
+  if (rlrc) lrc += `\n\n${filterExtendedLyricLabel(lrcTimeLabels, rlrc)}\n`
+  // console.log(lrc)
+  return lrc
+}

src/renderer/worker/download/utils.ts

@@ -1,6 +1,7 @@
 import { DOWNLOAD_STATUS, QUALITYS } from '@common/constants'
 import { filterFileName } from '@common/utils/common'
 import { joinPath } from '@common/utils/nodejs'
+import { mergeLyrics } from './lrcTool'
 import fs from 'fs'
 
 /**
@@ -9,8 +10,9 @@ import fs from 'fs'
  * @param {*} lrc
  * @param {*} format
  */
-export const saveLrc = async(filePath: string, lrc: string, format: LX.LyricFormat) => {
+export const saveLrc = async(lrcData: { lrc: string, tlrc: string | null, rlrc: string | null }, filePath: string, format: LX.LyricFormat) => {
   const iconv = await import('iconv-lite')
+  const lrc = mergeLyrics(lrcData.lrc, lrcData.tlrc, lrcData.rlrc)
   switch (format) {
     case 'gbk':
       fs.writeFile(filePath, iconv.encode(lrc, 'gbk', { addBOM: true }), err => {