YesPlayMusic/packages/electron/main/cache.ts
2022-06-05 01:58:54 +08:00

290 lines
8.0 KiB
TypeScript

import { db, Tables } from './db'
import type { FetchTracksResponse } from '@/shared/api/Track'
import { app } from 'electron'
import { Request, Response } from 'express'
import log from './log'
import fs from 'fs'
import * as musicMetadata from 'music-metadata'
import { APIs, APIsParams, APIsResponse } from '@/shared/CacheAPIs'
import { TablesStructures } from './db'
class Cache {
constructor() {
//
}
async set(api: string, data: any, query: any = {}) {
switch (api) {
case APIs.UserPlaylist:
case APIs.UserAccount:
case APIs.Personalized:
case APIs.RecommendResource:
case APIs.UserAlbums:
case APIs.UserArtists:
case APIs.Likelist: {
if (!data) return
db.upsert(Tables.AccountData, {
id: api,
json: JSON.stringify(data),
updatedAt: Date.now(),
})
break
}
case APIs.Track: {
if (!data.songs) return
const tracks = (data as FetchTracksResponse).songs.map(t => ({
id: t.id,
json: JSON.stringify(t),
updatedAt: Date.now(),
}))
db.upsertMany(Tables.Track, tracks)
break
}
case APIs.Album: {
if (!data.album) return
data.album.songs = data.songs
db.upsert(Tables.Album, {
id: data.album.id,
json: JSON.stringify(data.album),
updatedAt: Date.now(),
})
break
}
case APIs.Playlist: {
if (!data.playlist) return
db.upsert(Tables.Playlist, {
id: data.playlist.id,
json: JSON.stringify(data),
updatedAt: Date.now(),
})
break
}
case APIs.Artist: {
if (!data.artist) return
db.upsert(Tables.Artist, {
id: data.artist.id,
json: JSON.stringify(data),
updatedAt: Date.now(),
})
break
}
case APIs.ArtistAlbum: {
if (!data.hotAlbums) return
db.createMany(
Tables.Album,
data.hotAlbums.map((a: Album) => ({
id: a.id,
json: JSON.stringify(a),
updatedAt: Date.now(),
}))
)
const modifiedData = {
...data,
hotAlbums: data.hotAlbums.map((a: Album) => a.id),
}
db.upsert(Tables.ArtistAlbum, {
id: data.artist.id,
json: JSON.stringify(modifiedData),
updatedAt: Date.now(),
})
break
}
case APIs.Lyric: {
if (!data.lrc) return
db.upsert(Tables.Lyric, {
id: query.id,
json: JSON.stringify(data),
updatedAt: Date.now(),
})
break
}
case APIs.CoverColor: {
if (!data.id || !data.color) return
if (/^#([a-fA-F0-9]){3}$|[a-fA-F0-9]{6}$/.test(data.color) === false) {
return
}
db.upsert(Tables.CoverColor, {
id: data.id,
color: data.color,
})
}
}
}
get<T extends keyof APIsParams>(api: T, params: any): any {
switch (api) {
case APIs.UserPlaylist:
case APIs.UserAccount:
case APIs.Personalized:
case APIs.RecommendResource:
case APIs.UserArtists:
case APIs.Likelist: {
const data = db.find(Tables.AccountData, api)
if (data?.json) return JSON.parse(data.json)
break
}
case APIs.Track: {
const ids: number[] = params?.ids
.split(',')
.map((id: string) => Number(id))
if (ids.length === 0) return
if (ids.includes(NaN)) return
const tracksRaw = db.findMany(Tables.Track, ids)
if (tracksRaw.length !== ids.length) {
return
}
const tracks = ids.map(id => {
const track = tracksRaw.find(t => t.id === Number(id)) as any
return JSON.parse(track.json)
})
return {
code: 200,
songs: tracks,
privileges: {},
}
}
case APIs.Album: {
if (isNaN(Number(params?.id))) return
const data = db.find(Tables.Album, params.id)
if (data?.json)
return {
resourceState: true,
songs: [],
code: 200,
album: JSON.parse(data.json),
}
break
}
case APIs.Playlist: {
if (isNaN(Number(params?.id))) return
const data = db.find(Tables.Playlist, params.id)
if (data?.json) return JSON.parse(data.json)
break
}
case APIs.Artist: {
if (isNaN(Number(params?.id))) return
const data = db.find(Tables.Artist, params.id)
if (data?.json) return JSON.parse(data.json)
break
}
case APIs.ArtistAlbum: {
if (isNaN(Number(params?.id))) return
const artistAlbumsRaw = db.find(Tables.ArtistAlbum, params.id)
if (!artistAlbumsRaw?.json) return
const artistAlbums = JSON.parse(artistAlbumsRaw.json)
const albumsRaw = db.findMany(Tables.Album, artistAlbums.hotAlbums)
if (albumsRaw.length !== artistAlbums.hotAlbums.length) return
const albums = albumsRaw.map(a => JSON.parse(a.json))
artistAlbums.hotAlbums = artistAlbums.hotAlbums.map((id: number) =>
albums.find(a => a.id === id)
)
return artistAlbums
}
case APIs.Lyric: {
if (isNaN(Number(params?.id))) return
const data = db.find(Tables.Lyric, params.id)
if (data?.json) return JSON.parse(data.json)
break
}
case APIs.CoverColor: {
if (isNaN(Number(params?.id))) return
return db.find(Tables.CoverColor, params.id)?.color
}
}
}
getForExpress(api: string, req: Request) {
// Get track detail cache
if (api === APIs.Track) {
const cache = this.get(api, req.query)
if (cache) {
log.debug(`[cache] Cache hit for ${req.path}`)
return cache
}
}
}
getAudio(fileName: string, res: Response) {
if (!fileName) {
return res.status(400).send({ error: 'No filename provided' })
}
const id = Number(fileName.split('-')[0])
try {
const path = `${app.getPath('userData')}/audio_cache/${fileName}`
const audio = fs.readFileSync(path)
if (audio.byteLength === 0) {
db.delete(Tables.Audio, id)
fs.unlinkSync(path)
return res.status(404).send({ error: 'Audio not found' })
}
res
.status(206)
.setHeader('Accept-Ranges', 'bytes')
.setHeader('Connection', 'keep-alive')
.setHeader(
'Content-Range',
`bytes 0-${audio.byteLength - 1}/${audio.byteLength}`
)
.send(audio)
} catch (error) {
res.status(500).send({ error })
}
}
async setAudio(buffer: Buffer, { id, url }: { id: number; url: string }) {
const path = `${app.getPath('userData')}/audio_cache`
try {
fs.statSync(path)
} catch (e) {
fs.mkdirSync(path)
}
const meta = await musicMetadata.parseBuffer(buffer)
const br =
meta?.format?.codec === 'OPUS' ? 165000 : meta.format.bitrate ?? 0
const type =
{
'MPEG 1 Layer 3': 'mp3',
'Ogg Vorbis': 'ogg',
AAC: 'm4a',
FLAC: 'flac',
OPUS: 'opus',
}[meta.format.codec ?? ''] ?? 'unknown'
let source: TablesStructures[Tables.Audio]['source'] = 'unknown'
if (url.includes('googlevideo.com')) source = 'youtube'
if (url.includes('126.net')) source = 'netease'
if (url.includes('migu.cn')) source = 'migu'
if (url.includes('kuwo.cn')) source = 'kuwo'
if (url.includes('bilivideo.com')) source = 'bilibili'
// TODO: missing kugou qq joox
fs.writeFile(`${path}/${id}-${br}.${type}`, buffer, error => {
if (error) {
return log.error(`[cache] cacheAudio failed: ${error}`)
}
log.info(`Audio file ${id}-${br}.${type} cached!`)
db.upsert(Tables.Audio, {
id,
br,
type: type as TablesStructures[Tables.Audio]['type'],
source,
updatedAt: Date.now(),
})
log.info(`[cache] cacheAudio ${id}-${br}.${type}`)
})
}
}
export default new Cache()