396 lines
12 KiB
TypeScript
396 lines
12 KiB
TypeScript
import { computed, readonly, ref } from 'vue'
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export interface PlayableSong {
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id: number
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title: string
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artist: string
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musicUrl?: string | null
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cover?: string | null
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musicPlatform?: string
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musicId?: string
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playUrl?: string | null
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}
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interface PlaylistItem {
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id: number
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song: PlayableSong
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playDate?: string
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playTimeId?: number
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}
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// 创建一个单例实例
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const currentSong = ref<PlayableSong | null>(null)
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const isPlaying = ref(false)
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const currentPlaylist = ref<PlaylistItem[]>([])
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const currentPlaylistIndex = ref(-1)
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const currentPosition = ref(0) // 当前播放位置（秒）
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const duration = ref(0) // 歌曲总时长（秒）
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export function useAudioPlayer() {
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// 播放歌曲
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const playSong = (song: PlayableSong, playlist?: PlayableSong[], playlistIndex?: number) => {
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if (!song.musicUrl) {
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console.error('歌曲没有可播放的URL')
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return false
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}
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// 如果提供了播放列表，更新播放列表
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if (playlist && playlist.length > 0) {
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// 将PlayableSong数组转换为PlaylistItem数组
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currentPlaylist.value = playlist.map((s) => ({ song: s }))
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// 使用提供的索引或查找当前歌曲在播放列表中的位置
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if (
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typeof playlistIndex === 'number' &&
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playlistIndex >= 0 &&
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playlistIndex < playlist.length
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) {
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currentPlaylistIndex.value = playlistIndex
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} else {
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const index = playlist.findIndex((item) => item.id === song.id)
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currentPlaylistIndex.value = index >= 0 ? index : -1
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}
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} else if (currentSong.value && currentSong.value.id !== song.id) {
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// 如果没有提供播放列表且是新歌曲，清空播放列表
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currentPlaylist.value = []
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currentPlaylistIndex.value = -1
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}
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// 如果是同一首歌，则开始播放（不切换状态，由调用方决定）
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if (currentSong.value && currentSong.value.id === song.id) {
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// 保持当前歌曲的引用更新，以便获取可能更新的 URL 等信息
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currentSong.value = song
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isPlaying.value = true
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return true
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}
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// 播放新歌曲
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currentSong.value = song
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isPlaying.value = true
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currentPosition.value = 0
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duration.value = 0 // 重置时长，等待新歌曲加载后更新
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return true
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}
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// 暂停播放
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const pauseSong = () => {
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isPlaying.value = false
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}
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// 停止播放
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const stopSong = () => {
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isPlaying.value = false
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currentSong.value = null
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currentPosition.value = 0
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duration.value = 0
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}
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// 播放下一首歌曲
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const playNext = async () => {
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if (currentPlaylist.value.length === 0 || currentPlaylistIndex.value === -1) {
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console.log('没有播放列表或当前歌曲不在播放列表中')
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return false
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}
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let nextIndex = currentPlaylistIndex.value + 1
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let attempts = 0
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const maxAttempts = currentPlaylist.value.length // 最多尝试整个播放列表的长度
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// 循环尝试找到可播放的下一首歌曲
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while (nextIndex < currentPlaylist.value.length && attempts < maxAttempts) {
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const nextSong = currentPlaylist.value[nextIndex].song
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// 如果已经有播放URL，直接使用
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if (nextSong.musicUrl) {
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currentPlaylistIndex.value = nextIndex
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currentSong.value = nextSong
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currentPosition.value = 0
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duration.value = 0 // 重置时长
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isPlaying.value = true
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return true
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}
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// 如果没有播放URL，尝试动态获取
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if (nextSong.musicPlatform && nextSong.musicId) {
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try {
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const { getMusicUrl } = await import('~/utils/musicUrl')
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// 检查是否为播客内容
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const isPodcast =
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nextSong.musicPlatform === 'netease-podcast' ||
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nextSong.sourceInfo?.type === 'voice' ||
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(nextSong.sourceInfo?.source === 'netease-backup' &&
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nextSong.sourceInfo?.type === 'voice')
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const options = isPodcast ? { unblock: false } : {}
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const url = await getMusicUrl(
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nextSong.musicPlatform,
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nextSong.musicId,
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nextSong.playUrl,
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options
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)
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if (url) {
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nextSong.musicUrl = url
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currentPlaylistIndex.value = nextIndex
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currentSong.value = nextSong
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currentPosition.value = 0
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duration.value = 0 // 重置时长
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isPlaying.value = true
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return true
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} else {
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const msg = `无法获取《${nextSong.title}》的播放链接，已自动跳过`
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console.warn(msg)
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if (window.$showNotification) {
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window.$showNotification(msg, 'warning')
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}
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}
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} catch (error) {
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const msg = `《${nextSong.title}》获取播放链接失败，已自动跳过`
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console.warn(msg, error)
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if (window.$showNotification) {
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window.$showNotification(msg, 'error')
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}
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}
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} else {
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const msg = `《${nextSong.title}》缺少播放信息，已自动跳过`
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console.warn(msg)
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if (window.$showNotification) {
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window.$showNotification(msg, 'warning')
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}
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}
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// 尝试下一首
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nextIndex++
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attempts++
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}
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console.log('没有找到可播放的下一首歌曲')
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return false
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}
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// 播放上一首歌曲
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const playPrevious = async () => {
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if (currentPlaylist.value.length === 0 || currentPlaylistIndex.value === -1) {
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console.log('没有播放列表或当前歌曲不在播放列表中')
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return false
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}
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let prevIndex = currentPlaylistIndex.value - 1
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let attempts = 0
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const maxAttempts = currentPlaylist.value.length // 最多尝试整个播放列表的长度
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// 循环尝试找到可播放的上一首歌曲
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while (prevIndex >= 0 && attempts < maxAttempts) {
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const prevSong = currentPlaylist.value[prevIndex].song
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// 如果已经有播放URL，直接使用
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if (prevSong.musicUrl) {
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currentPlaylistIndex.value = prevIndex
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currentSong.value = prevSong
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currentPosition.value = 0
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duration.value = 0 // 重置时长
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isPlaying.value = true
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return true
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}
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// 如果没有播放URL，尝试动态获取
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if (prevSong.musicPlatform && prevSong.musicId) {
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try {
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const { getMusicUrl } = await import('~/utils/musicUrl')
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// 检查是否为播客内容
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const isPodcast =
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prevSong.musicPlatform === 'netease-podcast' ||
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prevSong.sourceInfo?.type === 'voice' ||
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(prevSong.sourceInfo?.source === 'netease-backup' &&
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prevSong.sourceInfo?.type === 'voice')
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const options = isPodcast ? { unblock: false } : {}
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const url = await getMusicUrl(
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prevSong.musicPlatform,
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prevSong.musicId,
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prevSong.playUrl,
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options
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)
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if (url) {
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prevSong.musicUrl = url
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currentPlaylistIndex.value = prevIndex
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currentSong.value = prevSong
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currentPosition.value = 0
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duration.value = 0 // 重置时长
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isPlaying.value = true
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return true
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} else {
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console.warn(`跳过第${prevIndex + 1}首歌曲：无法获取播放链接，可能是付费内容`)
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}
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} catch (error) {
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console.warn(`跳过第${prevIndex + 1}首歌曲：获取播放URL失败`, error)
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}
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} else {
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console.warn(`跳过第${prevIndex + 1}首歌曲：缺少音乐平台或ID信息`)
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}
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// 尝试上一首
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prevIndex--
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attempts++
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}
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console.log('没有找到可播放的上一首歌曲')
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return false
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}
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// 设置播放位置
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const setPosition = (position: number) => {
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currentPosition.value = Math.max(0, Math.min(position, duration.value))
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}
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// 设置歌曲总时长
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const setDuration = (newDuration: number) => {
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duration.value = Math.max(0, newDuration)
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}
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// 更新播放位置（由音频元素的timeupdate事件调用）
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const updatePosition = (position: number) => {
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currentPosition.value = position
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}
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// 检查指定ID的歌曲是否正在播放
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const isCurrentPlaying = (songId: number) => {
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return isPlaying.value && currentSong.value && currentSong.value.id === songId
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}
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// 检查指定ID的歌曲是否为当前歌曲（不管是否在播放）
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const isCurrentSong = (songId: number) => {
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return currentSong.value && currentSong.value.id === songId
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}
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// 检查是否有下一首歌曲
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const hasNext = computed(() => {
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return (
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currentPlaylist.value.length > 0 &&
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currentPlaylistIndex.value >= 0 &&
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currentPlaylistIndex.value < currentPlaylist.value.length - 1
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)
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})
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// 检查是否有上一首歌曲
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const hasPrevious = computed(() => {
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return currentPlaylist.value.length > 0 && currentPlaylistIndex.value > 0
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})
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// 提前预加载下一首歌曲的URL
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let isPrefetching = false
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const prefetchNextSong = async () => {
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if (isPrefetching || !hasNext.value) return false
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const nextIndex = currentPlaylistIndex.value + 1
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const nextSong = currentPlaylist.value[nextIndex]?.song
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if (!nextSong || nextSong.musicUrl || !nextSong.musicPlatform || !nextSong.musicId) {
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return false
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}
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isPrefetching = true
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try {
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const { getMusicUrl } = await import('~/utils/musicUrl')
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const isPodcast =
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nextSong.musicPlatform === 'netease-podcast' ||
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nextSong.sourceInfo?.type === 'voice' ||
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(nextSong.sourceInfo?.source === 'netease-backup' &&
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nextSong.sourceInfo?.type === 'voice')
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const options = isPodcast ? { unblock: false } : {}
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const url = await getMusicUrl(
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nextSong.musicPlatform,
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nextSong.musicId,
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nextSong.playUrl,
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options
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)
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if (url) {
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nextSong.musicUrl = url
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console.log(`成功预加载下一首歌曲: ${nextSong.title}`)
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}
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} catch (error) {
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console.warn(`预加载下一首歌曲《${nextSong.title}》失败:`, error)
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// 注意：这里不显示错误通知，失败会在真正尝试播放时处理并提示
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} finally {
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isPrefetching = false
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}
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return true
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}
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// 获取当前播放列表
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const getCurrentPlaylist = () => {
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return readonly(currentPlaylist)
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}
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// 获取当前播放列表索引
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const getCurrentPlaylistIndex = () => {
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return readonly(currentPlaylistIndex)
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}
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// 获取当前播放的歌曲信息
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const getCurrentSong = () => {
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return readonly(currentSong)
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}
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// 获取当前播放状态
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const getPlayingStatus = () => {
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return readonly(isPlaying)
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}
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// 获取当前播放位置
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const getCurrentPosition = () => {
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return readonly(currentPosition)
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}
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// 获取歌曲总时长
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const getDuration = () => {
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return readonly(duration)
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}
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// 获取播放进度百分比
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const getProgress = computed(() => {
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if (duration.value === 0) return 0
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return (currentPosition.value / duration.value) * 100
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})
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// 更新当前歌曲信息（用于音质切换等场景）
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const updateCurrentSong = (updatedSong: PlayableSong) => {
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if (currentSong.value && currentSong.value.id === updatedSong.id) {
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currentSong.value = updatedSong
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// 同时更新播放列表中的对应项
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if (currentPlaylistIndex.value !== -1 && currentPlaylist.value[currentPlaylistIndex.value]) {
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currentPlaylist.value[currentPlaylistIndex.value].song = updatedSong
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}
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return true
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}
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return false
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}
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return {
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playSong,
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pauseSong,
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stopSong,
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playNext,
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playPrevious,
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updateCurrentSong,
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setPosition,
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setDuration,
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updatePosition,
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isCurrentPlaying,
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isCurrentSong,
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getCurrentSong,
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getPlayingStatus,
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getCurrentPosition,
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getDuration,
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getProgress,
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hasNext,
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hasPrevious,
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prefetchNextSong,
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getCurrentPlaylist,
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getCurrentPlaylistIndex
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}
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}
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