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webapp/src/api/backend.js

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+// Midway后端API
+// 使用相对路径，通过Vite代理转发到后端
+const BASE_URL = ''
+
+async function request(path, options = {}) {
+  // 使用相对路径，Vite会通过代理转发到后端
+  const url = path.startsWith('/') ? path : `/${path}`
+  const { method = 'GET', body, params = {} } = options
+  
+  // 构建URL，添加查询参数
+  let requestUrl = url
+  if (method === 'GET' && params && Object.keys(params).length > 0) {
+    const searchParams = new URLSearchParams()
+    Object.entries(params).forEach(([k, v]) => {
+      if (v !== undefined && v !== null && v !== '') {
+        searchParams.append(k, v)
+      }
+    })
+    const queryString = searchParams.toString()
+    if (queryString) {
+      requestUrl += `?${queryString}`
+    }
+  }
+  
+  const config = {
+    method,
+    headers: {
+      'Content-Type': 'application/json',
+    },
+  }
+  
+  if (body && method !== 'GET') {
+    config.body = JSON.stringify(body)
+  }
+  
+  const res = await fetch(requestUrl, config)
+  if (!res.ok) throw new Error(`HTTP ${res.status}`)
+  const data = await res.json()
+  
+  if (!data.success) {
+    throw new Error(data.message || '请求失败')
+  }
+  
+  return data.data
+}
+
+/**
+ * 搜索歌曲
+ */
+export async function searchSongs(keywords, limit = 20) {
+  return await request('/api/music/search', {
+    method: 'GET',
+    params: { keywords, limit }
+  })
+}
+
+/**
+ * 获取歌曲详情
+ */
+export async function getSongDetail(id) {
+  return await request(`/api/music/song/${id}/detail`, {
+    method: 'GET'
+  })
+}
+
+/**
+ * 获取歌曲播放URL
+ */
+export async function getSongUrlV1(id, level = 'standard') {
+  const data = await request(`/api/music/song/${id}/url`, {
+    method: 'GET',
+    params: { level }
+  })
+  return data.url || ''
+}
+
+/**
+ * 获取播放队列
+ */
+export async function getQueue() {
+  return await request('/api/music/queue', {
+    method: 'GET'
+  })
+}
+
+/**
+ * 添加到播放队列
+ */
+export async function addToQueue(song) {
+  const result = await request('/api/music/queue/add', {
+    method: 'POST',
+    body: { song }
+  })
+  return result
+}
+
+/**
+ * 播放下一首
+ */
+export async function playNext() {
+  const result = await request('/api/music/queue/play-next', {
+    method: 'POST'
+  })
+  return result
+}
+
+/**
+ * 清空队列
+ */
+export async function clearQueue() {
+  return await request('/api/music/queue/clear', {
+    method: 'POST'
+  })
+}
+
+/**
+ * 从队列移除歌曲
+ */
+export async function removeFromQueue(songId) {
+  return await request('/api/music/queue/remove', {
+    method: 'POST',
+    body: { songId }
+  })
+}
+
+/**
+ * 获取歌词
+ */
+export async function getLyric(id) {
+  const data = await request(`/api/music/song/${id}/lyric`, {
+    method: 'GET'
+  })
+  return data || { raw: '', tlyric: '' }
+}
+
+/**
+ * 设置当前播放歌曲
+ */
+export async function setPlaybackSong(songId) {
+  return await request('/api/music/playback/set-song', {
+    method: 'POST',
+    body: { songId }
+  })
+}
+
+/**
+ * 播放控制 - 播放
+ */
+export async function play() {
+  return await request('/api/music/playback/play', {
+    method: 'POST'
+  })
+}
+
+/**
+ * 播放控制 - 暂停
+ */
+export async function pause() {
+  return await request('/api/music/playback/pause', {
+    method: 'POST'
+  })
+}
+
+/**
+ * 播放控制 - 跳转时间
+ */
+export async function seek(time) {
+  return await request('/api/music/playback/seek', {
+    method: 'POST',
+    body: { time }
+  })
+}
+
+/**
+ * 获取当前播放状态
+ */
+export async function getPlaybackState() {
+  return await request('/api/music/playback/state', {
+    method: 'GET'
+  })
+}
+
+export function getBaseUrl() {
+  // 返回空字符串，使用相对路径通过代理
+  return ''
+}
+