refactor(sdk): musicSdk 全量迁移至 TypeScript
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import { httpFetch } from '../request.ts'
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import { decodeLyric, lrcTools } from './util.ts'
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import { decodeName } from '../index.ts'
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/*
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export default {
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formatTime(time) {
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let m = parseInt(time / 60)
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let s = (time % 60).toFixed(2)
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return (m < 10 ? '0' + m : m) + ':' + (s < 10 ? '0' + s : s)
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},
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sortLrcArr(arr) {
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const lrcSet = new Set()
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let lrc = []
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let lrcT = []
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for (const item of arr) {
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if (lrcSet.has(item.time)) {
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const tItem = lrc.pop()
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tItem.time = lrc[lrc.length - 1].time
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lrcT.push(tItem)
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lrc.push(item)
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} else {
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lrc.push(item)
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lrcSet.add(item.time)
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}
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}
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if (lrcT.length && lrc.length > lrcT.length) {
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const tItem = lrc.pop()
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tItem.time = lrc[lrc.length - 1].time
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lrcT.push(tItem)
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}
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return {
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lrc,
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lrcT,
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}
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},
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transformLrc(songinfo, lrclist) {
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return `[ti:${songinfo.songName}]\n[ar:${songinfo.artist}]\n[al:${songinfo.album}]\n[by:]\n[offset:0]\n${lrclist ? lrclist.map(l => `[${this.formatTime(l.time)}]${l.lineLyric}\n`).join('') : '暂无歌词'}`
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},
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getLyric(songId) {
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const requestObj = httpFetch(`http://m.kuwo.cn/newh5/singles/songinfoandlrc?musicId=${songId}`)
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requestObj.promise = requestObj.promise.then(({ body }) => {
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// console.log(body)
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if (!body.data?.lrclist?.length) return Promise.reject(new Error('Get lyric failed'))
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let lrcInfo
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try {
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lrcInfo = this.sortLrcArr(body.data.lrclist)
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} catch {
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return Promise.reject(new Error('Get lyric failed'))
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}
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// console.log(body.data.lrclist)
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// console.log(lrcInfo.lrc, lrcInfo.lrcT)
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// console.log({
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// lyric: decodeName(this.transformLrc(body.data.songinfo, lrc)),
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// tlyric: decodeName(this.transformLrc(body.data.songinfo, lrcT)),
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// })
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return {
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lyric: decodeName(this.transformLrc(body.data.songinfo, lrcInfo.lrc)),
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tlyric: lrcInfo.lrcT.length ? decodeName(this.transformLrc(body.data.songinfo, lrcInfo.lrcT)) : '',
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}
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})
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return requestObj
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},
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}
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*/
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const buf_key = Buffer.from('yeelion')
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const buf_key_len = buf_key.length
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const buildParams = (id: string, isGetLyricx: boolean): string => {
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let params = `user=12345,web,web,web&requester=localhost&req=1&rid=MUSIC_${id}`
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if (isGetLyricx) params += '&lrcx=1'
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const buf_str = Buffer.from(params)
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const buf_str_len = buf_str.length
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const output = new Uint16Array(buf_str_len)
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let i = 0
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while (i < buf_str_len) {
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let j = 0
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while (j < buf_key_len && i < buf_str_len) {
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output[i] = buf_key[j] ^ buf_str[i]
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i++
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j++
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}
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}
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return Buffer.from(output).toString('base64')
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}
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// console.log(buildParams('207527604', false))
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// console.log(buildParams('207527604', true))
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const timeExp = /^\[([\d:.]*)\]{1}/g
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const existTimeExp = /\[\d{1,2}:.*\d{1,4}\]/
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const lyricxTag = /^<-?\d+,-?\d+>/
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export default {
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/* sortLrcArr(arr) {
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const lrcSet = new Set()
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let lrc = []
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let lrcT = []
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let markIndex = []
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for (const item of arr) {
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if (lrcSet.has(item.time)) {
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if (lrc.length < 2) continue
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const index = lrc.findIndex(l => l.time == item.time)
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markIndex.push(index)
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if (index == lrc.length - 1) {
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lrcT.push({ ...lrc[index], time: item.time })
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lrc.push(item)
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} else {
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lrcT.push({ ...lrc[index], time: lrc[index + 1].time })
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if (item.text) {
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// const lastIndex = lrc.length - 1
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// markIndex.push(lastIndex)
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// lrcT.push({ ...lrc[lastIndex], time: lrc[lastIndex - 1].time })
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lrc.push(item)
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}
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}
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} else {
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lrc.push(item)
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lrcSet.add(item.time)
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}
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}
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// console.log(markIndex)
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markIndex = Array.from(new Set(markIndex))
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for (let index = markIndex.length - 1; index >= 0; index--) {
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lrc.splice(markIndex[index], 1)
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}
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// if (lrcT.length) {
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// if (lrc.length * 0.4 < lrcT.length) { // 翻译数量需大于歌词数量的0.4倍，否则认为没有翻译
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// const tItem = lrc.pop()
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// tItem.time = lrc[lrc.length - 1].time
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// lrcT.push(tItem)
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// } else {
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// lrc = arr
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// lrcT = []
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// }
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// }
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console.log(lrc, lrcT)
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return {
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lrc,
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lrcT,
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}
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}, */
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sortLrcArr(arr) {
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const lrcSet = new Set()
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let lrc: any[] = []
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let lrcT: any[] = []
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let isLyricx = false
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for (const item of arr) {
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if (lrcSet.has(item.time)) {
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if (lrc.length < 2) continue
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const tItem = lrc.pop()
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tItem.time = lrc[lrc.length - 1].time
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lrcT.push(tItem)
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lrc.push(item)
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} else {
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lrc.push(item)
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lrcSet.add(item.time)
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}
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if (!isLyricx && lyricxTag.test(item.text)) isLyricx = true
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}
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if (!isLyricx && lrcT.length > lrc.length * 0.3 && lrc.length - lrcT.length > 6) {
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throw new Error('failed')
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// if (lrc.length * 0.4 < lrcT.length) { // 翻译数量需大于歌词数量的0.4倍，否则认为没有翻译
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// const tItem = lrc.pop()
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// tItem.time = lrc[lrc.length - 1].time
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// lrcT.push(tItem)
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// } else {
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// lrc = arr
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// lrcT = []
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// }
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}
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return {
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lrc,
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lrcT,
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}
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},
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transformLrc(tags, lrclist) {
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return `${tags.join('\n')}\n${lrclist ? lrclist.map(l => `[${l.time}]${l.text}\n`).join('') : '暂无歌词'}`
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},
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parseLrc(lrc: string) {
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const lines = lrc.split(/\r\n|\r|\n/)
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let tags: string[] = []
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let lrcArr: Array<{ time: string; text: string }> = []
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for (let i = 0; i < lines.length; i++) {
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const line = lines[i].trim()
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let result = timeExp.exec(line)
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if (result) {
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const text = line.replace(timeExp, '').trim()
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let time = RegExp.$1
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if (/\.\d\d$/.test(time)) time += '0'
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lrcArr.push({
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time,
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text,
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})
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} else if (lrcTools.rxps.tagLine.test(line)) {
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tags.push(line)
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}
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}
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const lrcInfo = this.sortLrcArr(lrcArr)
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return {
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lyric: decodeName(this.transformLrc(tags, lrcInfo.lrc)),
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tlyric: lrcInfo.lrcT.length ? decodeName(this.transformLrc(tags, lrcInfo.lrcT)) : '',
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}
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},
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// getLyric2(musicInfo, isGetLyricx = true) {
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// const requestObj = httpFetch(`http://newlyric.kuwo.cn/newlyric.lrc?${buildParams(musicInfo.songmid, isGetLyricx)}`)
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// requestObj.promise = requestObj.promise.then(({ statusCode, body, raw }) => {
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// if (statusCode != 200) return Promise.reject(new Error(JSON.stringify(body)))
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// return decodeLyric({ lrcBase64: raw.toString('base64'), isGetLyricx }).then(base64Data => {
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// let lrcInfo
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// console.log(Buffer.from(base64Data, 'base64').toString())
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// try {
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// lrcInfo = this.parseLrc(Buffer.from(base64Data, 'base64').toString())
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// } catch {
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// return Promise.reject(new Error('Get lyric failed'))
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// }
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// if (lrcInfo.tlyric) lrcInfo.tlyric = lrcInfo.tlyric.replace(lrcTools.rxps.wordTimeAll, '')
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// lrcInfo.lxlyric = lrcTools.parse(lrcInfo.lyric)
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// // console.log(lrcInfo.lyric)
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// // console.log(lrcInfo.tlyric)
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// // console.log(lrcInfo.lxlyric)
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// // console.log(JSON.stringify(lrcInfo))
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// })
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// })
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// return requestObj
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// },
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getLyric(musicInfo, isGetLyricx = true) {
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// this.getLyric2(musicInfo)
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const requestObj = httpFetch(`http://newlyric.kuwo.cn/newlyric.lrc?${buildParams(musicInfo.songmid, isGetLyricx)}`)
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requestObj.promise = requestObj.promise.then(({ statusCode, body, raw }) => {
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if (statusCode != 200) return Promise.reject(new Error(JSON.stringify(body)))
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return decodeLyric({ lrcBase64: raw!.toString('base64'), isGetLyricx }).then(base64Data => {
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// let lrcInfo
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// try {
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// lrcInfo = this.parseLrc(Buffer.from(base64Data, 'base64').toString())
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// } catch {
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// return Promise.reject(new Error('Get lyric failed'))
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// }
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let lrcInfo
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// console.log(Buffer.from(base64Data, 'base64').toString())
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try {
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lrcInfo = this.parseLrc(Buffer.from(base64Data, 'base64').toString())
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} catch (err) {
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return Promise.reject(new Error('Get lyric failed'))
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}
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// console.log(lrcInfo)
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if (lrcInfo.tlyric) lrcInfo.tlyric = lrcInfo.tlyric.replace(lrcTools.rxps.wordTimeAll, '')
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try {
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lrcInfo.lxlyric = lrcTools.parse(lrcInfo.lyric)
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} catch {
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lrcInfo.lxlyric = ''
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}
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lrcInfo.lyric = lrcInfo.lyric.replace(lrcTools.rxps.wordTimeAll, '')
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if (!existTimeExp.test(lrcInfo.lyric)) return Promise.reject(new Error('Get lyric failed'))
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// console.log(lrcInfo)
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return lrcInfo
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})
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})
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return requestObj
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},
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}
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