1. 仿网易云音乐播放器（technical-architecture）

1. 架构设计

2. 技术描述

3. 路由定义

4. 核心组件架构

4.1 音频播放管理

// 音频状态管理
interface AudioState {
  currentSong: Song | null
  playlist: Song[]
  currentIndex: number
  isPlaying: boolean
  playMode: 'loop' | 'single' | 'random'
  volume: number
  progress: number
  duration: number
}

// 歌曲数据结构
interface Song {
  id: string
  title: string
  artist: string
  album: string
  duration: number
  cover: string
  url: string
  lyrics: LyricLine[]
}

interface LyricLine {
  time: number
  text: string
}

4.2 歌单管理

// 歌单数据结构
interface Playlist {
  id: string
  name: string
  description: string
  cover: string
  playCount: number
  songCount: number
  creator: User
  songs: Song[]
  createTime: number
}

interface User {
  id: string
  nickname: string
  avatar: string
  level: number
  followers: number
  followings: number
}

4.3 搜索功能

// 搜索结果类型
interface SearchResult {
  songs: Song[]
  playlists: Playlist[]
  artists: Artist[]
  albums: Album[]
}

interface Artist {
  id: string
  name: string
  avatar: string
  followers: number
}

interface Album {
  id: string
  name: string
  artist: string
  cover: string
  publishTime: number
}

5. 状态管理设计

5.1 Pinia Store结构

5.2 核心Store定义

// 播放器Store
export const usePlayerStore = defineStore('player', {
  state: () => ({
    currentSong: null as Song | null,
    playlist: [] as Song[],
    currentIndex: 0,
    isPlaying: false,
    playMode: 'loop' as 'loop' | 'single' | 'random',
    volume: 1,
    progress: 0,
    duration: 0
  }),
  
  actions: {
    playSong(song: Song) {
      this.currentSong = song
      this.isPlaying = true
    },
    
    togglePlay() {
      this.isPlaying = !this.isPlaying
    },
    
    nextSong() {
      // 根据播放模式切换歌曲逻辑
    },
    
    prevSong() {
      // 上一首歌曲逻辑
    }
  }
})

6. Mock数据设计

6.1 模拟API结构

// Mock数据配置
interface MockConfig {
  songs: Song[]
  playlists: Playlist[]
  artists: Artist[]
  albums: Album[]
  users: User[]
}

// 模拟API端点
const MOCK_APIS = {
  // 推荐歌单
  '/api/recommend/playlist': 'GET',
  
  // 歌单详情
  '/api/playlist/:id': 'GET',
  
  // 搜索
  '/api/search': 'GET',
  
  // 歌曲URL
  '/api/song/url/:id': 'GET',
  
  // 歌词
  '/api/lyric/:id': 'GET',
  
  // 排行榜
  '/api/toplist': 'GET'
}

6.2 音频播放技术实现

// Web Audio API播放器类
class AudioPlayer {
  private audioContext: AudioContext
  private audioElement: HTMLAudioElement
  private gainNode: GainNode
  private analyser: AnalyserNode
  
  constructor() {
    this.audioContext = new AudioContext()
    this.audioElement = new Audio()
    this.setupAudioNodes()
  }
  
  private setupAudioNodes() {
    const source = this.audioContext.createMediaElementSource(this.audioElement)
    this.gainNode = this.audioContext.createGain()
    this.analyser = this.audioContext.createAnalyser()
    
    source.connect(this.gainNode)
    this.gainNode.connect(this.analyser)
    this.analyser.connect(this.audioContext.destination)
  }
  
  play(url: string) {
    this.audioElement.src = url
    this.audioElement.play()
  }
  
  pause() {
    this.audioElement.pause()
  }
  
  setVolume(volume: number) {
    this.gainNode.gain.value = volume
  }
  
  getProgress(): number {
    return this.audioElement.currentTime / this.audioElement.duration
  }
}

7. 组件设计规范

7.1 基础组件结构

<!-- 歌曲列表项组件 -->
<template>
  <div class="song-item" @click="handlePlay">
    <img class="cover" :src="song.cover" />
    <div class="info">
      <h3 class="title">{{ song.title }}</h3>
      <p class="artist">{{ song.artist }}</p>
    </div>
    <div class="actions">
      <van-icon name="play-circle-o" @click.stop="handlePlay" />
      <van-icon name="ellipsis" @click.stop="showActions" />
    </div>
  </div>
</template>

<script setup lang="ts">
import { usePlayerStore } from '@/stores/player'

interface Props {
  song: Song
  showAlbum?: boolean
}

const props = defineProps<Props>()
const playerStore = usePlayerStore()

const handlePlay = () => {
  playerStore.playSong(props.song)
}
</script>

7.2 页面布局结构

<!-- 基础页面布局 -->
<template>
  <div class="page-container">
    <van-nav-bar
      :title="title"
      left-arrow
      @click-left="onClickLeft"
    />
    
    <div class="page-content">
      <router-view />
    </div>
    
    <PlayerBar />
    
    <van-tabbar v-model="activeTab" route>
      <van-tabbar-item icon="home-o" to="/">首页</van-tabbar-item>
      <van-tabbar-item icon="search" to="/discover">发现</van-tabbar-item>
      <van-tabbar-item icon="music-o" to="/mine">我的</van-tabbar-item>
      <van-tabbar-item icon="user-o" to="/music-hall">音乐馆</van-tabbar-item>
    </van-tabbar>
  </div>
</template>

8. 性能优化策略

8.1 懒加载实现

// 图片懒加载指令
const lazyLoad = {
  mounted(el: HTMLImageElement, binding: DirectiveBinding) {
    const observer = new IntersectionObserver((entries) => {
      entries.forEach(entry => {
        if (entry.isIntersecting) {
          el.src = binding.value
          observer.unobserve(el)
        }
      })
    })
    observer.observe(el)
  }
}

8.2 虚拟滚动

• 长列表使用虚拟滚动优化性能
• 歌曲列表、搜索结果等大数据量展示场景
• 使用第三方库如vue-virtual-scroller

8.3 音频预加载

• 预加载下一首歌曲
• 缓存常用音频资源
• 使用Service Worker进行资源缓存