TTMusic/entry/src/ohosTest/ets/test/PlaybackStateBridge.test.ets

import { AppStorage } from '@kit.ArkUI'
import { describe, expect, it } from '@ohos/hypium'
import { PlaybackStateBridge } from '../../../main/ets/controller/PlaybackStateBridge'
import { VideoItem } from '../../../main/ets/viewmodel/VideoItem'

export default function playbackStateBridgeTest() {
  describe('PlaybackStateBridgeTest', () => {
    it('replaceQueueSyncsCurrentSongAndIndex', 0, () => {
      const bridge = PlaybackStateBridge.getInstance()
      const songs: VideoItem[] = [
        new VideoItem('Song A', '1', '/music/a.flac', 0, 0, '2026-04-02'),
        new VideoItem('Song B', '2', '/music/b.flac', 0, 0, '2026-04-02')
      ]

      bridge.reset()
      bridge.replaceQueue(songs, 99)

      const snapshot = bridge.getSnapshot()
      expect(snapshot.queue.length).assertEqual(2)
      expect(snapshot.currentIndex).assertEqual(1)
      expect(snapshot.currentSong?.filePath ?? '').assertEqual('/music/b.flac')
      const storedQueue = AppStorage.get<VideoItem[]>('currentQueue') ?? []
      expect(storedQueue.length).assertEqual(2)
      expect(storedQueue[1]?.filePath ?? '').assertEqual('/music/b.flac')
      expect(AppStorage.get<VideoItem>('currentSong')?.filePath ?? '').assertEqual('/music/b.flac')
      expect(AppStorage.get<number>('currentQueueIndex')).assertEqual(1)
    })

    it('updatePlaybackStateDoesNotDropQueue', 0, () => {
      const bridge = PlaybackStateBridge.getInstance()
      const songs: VideoItem[] = [
        new VideoItem('Song A', '1', '/music/a.flac', 0, 0, '2026-04-02')
      ]

      bridge.reset()
      bridge.replaceQueue(songs, 0)
      bridge.updatePlaybackState(true, 1350, 4200)

      const snapshot = bridge.getSnapshot()
      expect(snapshot.isPlaying).assertTrue()
      expect(snapshot.positionMs).assertEqual(1350)
      expect(snapshot.durationMs).assertEqual(4200)
      expect(snapshot.currentSong?.filePath ?? '').assertEqual('/music/a.flac')
      expect(AppStorage.get<boolean>('isPlaying')).assertTrue()
    })

    it('replaceQueueWithEmptyQueueResetsPlaybackState', 0, () => {
      const bridge = PlaybackStateBridge.getInstance()
      bridge.reset()

      bridge.replaceQueue([], 0)
      const snapshot = bridge.getSnapshot()

      expect(snapshot.queue.length).assertEqual(0)
      expect(snapshot.currentIndex).assertEqual(-1)
      expect(snapshot.isPlaying).assertFalse()
      expect(AppStorage.get<boolean>('isPlaying')).assertFalse()
    })
  })
}