05e5538945
Эквалайзер на плеере больше не декоративная синус-волна — реагирует на реальный звук. Через TeeAudioProcessor подключаемся к декодированному PCM в аудио-конвейере ExoPlayer (без разрешений/микрофона), считаем FFT → лог-полосы (AudioSpectrumAnalyzer), PlayerController отдаёт спектр StateFlow'ом, LiveEqualizer рисует столбики по уровням (с быстрым ростом/плавным спадом). Когда звука нет (пауза/float-выход) — фолбэк на прежнюю синус-волну. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
262 lines
11 KiB
Kotlin
262 lines
11 KiB
Kotlin
package com.radiola.ui.player
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import androidx.lifecycle.ViewModel
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import androidx.lifecycle.viewModelScope
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import com.radiola.domain.model.DeeplinkService
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import com.radiola.domain.model.Station
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import com.radiola.domain.model.StreamQuality
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import com.radiola.domain.model.Track
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import com.radiola.domain.repository.SettingsRepository
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import com.radiola.domain.repository.StationRepository
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import com.radiola.domain.repository.NowPlayingRepository
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import com.radiola.domain.repository.RecordingRepository
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import com.radiola.domain.usecase.GetNowPlayingUseCase
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import com.radiola.domain.usecase.GetStationsUseCase
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import com.radiola.domain.usecase.SearchTrackInServiceUseCase
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import com.radiola.domain.repository.TrackHistoryRepository
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import com.radiola.domain.usecase.ToggleFavoriteUseCase
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import com.radiola.domain.usecase.auth.PushHistoryUseCase
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import com.radiola.service.PlayerController
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import dagger.hilt.android.lifecycle.HiltViewModel
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import kotlinx.coroutines.Job
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import kotlinx.coroutines.delay
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import kotlinx.coroutines.flow.*
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import kotlinx.coroutines.launch
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import javax.inject.Inject
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@HiltViewModel
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class PlayerViewModel @Inject constructor(
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private val playerController: PlayerController,
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private val stationRepository: StationRepository,
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private val nowPlayingRepository: NowPlayingRepository,
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private val getStationsUseCase: GetStationsUseCase,
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private val getNowPlayingUseCase: GetNowPlayingUseCase,
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private val searchTrackInServiceUseCase: SearchTrackInServiceUseCase,
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private val toggleFavoriteUseCase: ToggleFavoriteUseCase,
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private val trackHistoryRepository: TrackHistoryRepository,
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private val settingsRepository: SettingsRepository,
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private val recordingRepository: RecordingRepository,
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private val pushHistoryUseCase: PushHistoryUseCase,
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private val loveStreamResolver: com.radiola.data.remote.LoveStreamResolver
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) : ViewModel() {
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val isPlaying: StateFlow<Boolean> = playerController.isPlaying
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val currentStationPrefix: StateFlow<String?> = playerController.currentStationPrefix
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val spectrum: StateFlow<FloatArray> = playerController.spectrum
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private val _currentStation = MutableStateFlow<Station?>(null)
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val currentStation: StateFlow<Station?> = _currentStation.asStateFlow()
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private val _currentTrack = MutableStateFlow<Track?>(null)
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val currentTrack: StateFlow<Track?> = _currentTrack.asStateFlow()
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private val _enabledServices = MutableStateFlow<List<DeeplinkService>>(emptyList())
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val enabledServices: StateFlow<List<DeeplinkService>> = _enabledServices.asStateFlow()
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private val _stations = MutableStateFlow<List<Station>>(emptyList())
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val stations: StateFlow<List<Station>> = _stations.asStateFlow()
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private val _playlist = MutableStateFlow<List<Station>>(emptyList())
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val playlist: StateFlow<List<Station>> = _playlist.asStateFlow()
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// Выбранное качество текущей станции (битрейт). null — у станции нет вариантов.
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private val _currentQuality = MutableStateFlow<StreamQuality?>(null)
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val currentQuality: StateFlow<StreamQuality?> = _currentQuality.asStateFlow()
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// Предпочитаемый битрейт пользователя (0 = авто/по умолчанию станции).
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private var preferredBitrate: Int = 0
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val isRecording: StateFlow<Boolean> = recordingRepository.isRecording
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private var nowPlayingJob: Job? = null
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init {
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playerController.onSkipToNext = { playNext() }
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playerController.onSkipToPrevious = { playPrevious() }
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viewModelScope.launch {
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getStationsUseCase().collect { _stations.value = it }
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}
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viewModelScope.launch {
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settingsRepository.getEnabledDeeplinkServices().collect { ids ->
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_enabledServices.value = DeeplinkService.entries.filter { it.serviceId in ids }
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}
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}
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viewModelScope.launch {
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settingsRepository.getPreferredBitrate().collect { preferredBitrate = it }
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}
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viewModelScope.launch {
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_currentTrack
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.filterNotNull()
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.distinctUntilChanged()
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.collect { track ->
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trackHistoryRepository.addTrack(track)
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}
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}
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}
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fun play(station: Station, playlist: List<Station>? = null) {
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_currentStation.value = station
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_currentTrack.value = null
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_playlist.value = playlist ?: _stations.value
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// Выбираем стартовое качество: предпочтение пользователя → совпадение с
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// потоком по умолчанию → высшее. Если вариантов нет — играем как есть.
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val quality = pickInitialQuality(station)
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_currentQuality.value = quality
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val streamUrl = quality?.url ?: station.streamUrl
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// Love Radio: подставляем сессионный UID (иначе поток отдаёт заглушку).
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// Для остальных resolve вернёт URL как есть.
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viewModelScope.launch {
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val url = loveStreamResolver.resolve(streamUrl)
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playerController.play(url, station.prefix, station.name, station.id)
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}
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viewModelScope.launch { pushHistoryUseCase(station.id) }
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nowPlayingJob?.cancel()
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nowPlayingJob = viewModelScope.launch {
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// Polling loop for Record API now playing
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launch {
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while (true) {
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nowPlayingRepository.refreshNowPlaying()
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delay(10_000)
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}
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}
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// Collect now playing for this station (API has priority: covers + accurate metadata)
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launch {
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getNowPlayingUseCase(station.id)
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.distinctUntilChanged()
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.collect { track ->
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if (track != null) {
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_currentTrack.value = track
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// Нет обложки — обогащаем приоритетно (играет прямо сейчас).
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if (track.coverUrl.isNullOrBlank()) {
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nowPlayingRepository.enrichCoverNow(track)
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}
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playerController.updateMetadata(
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track.song,
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track.artist,
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track.coverUrl ?: "",
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station.name
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)
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}
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}
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}
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// Fallback: Icy metadata from stream for stations not in Record API
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launch {
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playerController.icyTitle
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.filterNotNull()
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.distinctUntilChanged()
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.collect { icyTitle ->
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// Only use Icy if no API track is currently active
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if (_currentTrack.value == null) {
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val track = parseIcyTitle(icyTitle)
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if (track != null) {
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_currentTrack.value = track
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playerController.updateMetadata(
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track.song,
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track.artist,
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"",
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station.name
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)
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}
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}
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}
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}
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}
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}
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/** Стартовое качество станции с учётом предпочтения пользователя. */
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private fun pickInitialQuality(station: Station): StreamQuality? {
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val list = station.qualities
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if (list.size < 2) return null
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return list.firstOrNull { it.bitrate == preferredBitrate }
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?: list.firstOrNull { it.url == station.streamUrl }
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?: list.first()
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}
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/** Переключить качество текущей станции на лету (без сброса now-playing). */
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fun selectQuality(quality: StreamQuality) {
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val station = _currentStation.value ?: return
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if (_currentQuality.value?.bitrate == quality.bitrate) return
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_currentQuality.value = quality
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preferredBitrate = quality.bitrate
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viewModelScope.launch { settingsRepository.setPreferredBitrate(quality.bitrate) }
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viewModelScope.launch {
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val url = loveStreamResolver.resolve(quality.url)
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playerController.changeStream(url)
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}
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}
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private fun parseIcyTitle(title: String?): Track? {
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if (title.isNullOrBlank()) return null
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val separators = listOf(" - ", " — ", " – ")
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for (sep in separators) {
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val parts = title.split(sep, limit = 2)
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if (parts.size == 2) {
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return Track(
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artist = parts[0].trim(),
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song = parts[1].trim(),
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coverUrl = null,
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stationName = _currentStation.value?.name ?: ""
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)
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}
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}
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// No separator found: treat entire string as song title
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return Track(
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artist = "",
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song = title.trim(),
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coverUrl = null,
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stationName = _currentStation.value?.name ?: ""
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)
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}
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fun pause() {
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playerController.pause()
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}
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fun resume() {
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playerController.play()
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}
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fun togglePlayPause() {
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if (isPlaying.value) pause() else resume()
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}
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fun playNext() {
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val current = _currentStation.value ?: return
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val list = _playlist.value
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if (list.isEmpty()) return
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val index = list.indexOfFirst { it.id == current.id }
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val next = list.getOrNull((index + 1).mod(list.size))
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next?.let { play(it, list) }
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}
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fun playPrevious() {
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val current = _currentStation.value ?: return
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val list = _playlist.value
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if (list.isEmpty()) return
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val index = list.indexOfFirst { it.id == current.id }
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val prev = list.getOrNull((index - 1).mod(list.size))
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prev?.let { play(it, list) }
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}
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fun getDeeplinkUrl(track: Track, service: DeeplinkService): String {
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return searchTrackInServiceUseCase(track, service)
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}
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fun toggleFavorite(station: Station) {
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viewModelScope.launch {
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toggleFavoriteUseCase(station)
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}
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}
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fun toggleRecording() {
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viewModelScope.launch {
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if (recordingRepository.isRecording.value) {
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recordingRepository.stopRecording()
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} else {
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val station = _currentStation.value ?: return@launch
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recordingRepository.startRecording(station, _currentTrack.value)
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}
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}
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}
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}
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