feat(player): переключатель качества звука на экране воспроизведения

Перепроверены все 594 рабочие станции на наличие битрейт-вариантов
потока (скрипт-пробер). У 71 станции найдено по 2–4 качества
(Record-флагманы 96/64/32, zaycev 256/128/48, ВГТРК 192/128/64,
НАШЕ/Орфей/Шансон HQ и др.) — записаны в поле qualities в stations.json.
HLS (EMG) и Love (UID-привязка) корректно пропущены.

Клиент: модель StreamQuality, хранение в Room (миграция v5),
предпочтение битрейта в настройках. На экране плеера — чип текущего
качества (виден только если вариантов ≥2) и шторка «Качество звука»
со ступенями; переключение на лету без сброса now-playing, выбор
запоминается между станциями.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

app/src/main/java/com/radiola/data/local/AppDatabase.kt

@@ -44,9 +44,15 @@ val MIGRATION_3_4 = object : Migration(3, 4) {
     }
 }
 
+val MIGRATION_4_5 = object : Migration(4, 5) {
+    override fun migrate(database: SupportSQLiteDatabase) {
+        database.execSQL("ALTER TABLE stations ADD COLUMN qualities TEXT NOT NULL DEFAULT ''")
+    }
+}
+
 @Database(
     entities = [StationEntity::class, TrackHistoryEntity::class, TagEntity::class, RecordingEntity::class],
-    version = 4
+    version = 5
 )
 abstract class AppDatabase : RoomDatabase() {
     abstract fun stationDao(): StationDao

app/src/main/java/com/radiola/data/local/LocalStationDataSource.kt

@@ -41,7 +41,10 @@ class LocalStationDataSource @Inject constructor(
                     genre = group?.name ?: "",
                     tags = listOfNotNull(group?.name?.takeIf { it.isNotBlank() }),
                     sortOrder = dto.id,
-                    source = if (isRecord) "record" else "local"
+                    source = if (isRecord) "record" else "local",
+                    qualities = dto.qualities.orEmpty().map {
+                        com.radiola.domain.model.StreamQuality(it.bitrate, it.url, it.type)
+                    }
                 )
             }
     }

app/src/main/java/com/radiola/data/local/dto/LocalStationDto.kt

@@ -17,7 +17,15 @@ data class LocalStationDto(
     @SerialName("bgColor") val bgColor: String? = null,
     @SerialName("enabled") val enabled: Boolean = true,
     @SerialName("notWorked") val notWorked: Boolean = false,
-    @SerialName("isNew") val isNew: Boolean = false
+    @SerialName("isNew") val isNew: Boolean = false,
+    @SerialName("qualities") val qualities: List<LocalQualityDto>? = null
+)
+
+@Serializable
+data class LocalQualityDto(
+    @SerialName("bitrate") val bitrate: Int,
+    @SerialName("url") val url: String,
+    @SerialName("type") val type: String = "aac"
 )
 
 @Serializable

app/src/main/java/com/radiola/data/local/entity/StationEntity.kt

@@ -14,5 +14,7 @@ data class StationEntity(
     val tags: String,
     val sortOrder: Int,
     val source: String = "record",
-    val isFavorite: Boolean = false
+    val isFavorite: Boolean = false,
+    // Качества потока, закодированы строкой: строки "bitrate\ttype\turl", разделённые \n.
+    val qualities: String = ""
 )

app/src/main/java/com/radiola/data/repository/SettingsRepositoryImpl.kt

@@ -29,6 +29,7 @@ class SettingsRepositoryImpl @Inject constructor(
         private val ENABLED_SERVICES = stringSetPreferencesKey("enabled_deeplink_services")
         private val EQUALIZER_PRESET = stringPreferencesKey("equalizer_preset")
         private val RECORDING_ENABLED = booleanPreferencesKey("recording_enabled")
+        private val PREFERRED_BITRATE = intPreferencesKey("preferred_bitrate")
     }
 
     override fun getLastStationId(): Flow<Int?> = dataStore.data.map { it[LAST_STATION_ID] }
@@ -49,4 +50,7 @@ class SettingsRepositoryImpl @Inject constructor(
 
     override fun isRecordingEnabled(): Flow<Boolean> = dataStore.data.map { it[RECORDING_ENABLED] ?: false }
     override suspend fun setRecordingEnabled(enabled: Boolean) { dataStore.edit { it[RECORDING_ENABLED] = enabled } }
+
+    override fun getPreferredBitrate(): Flow<Int> = dataStore.data.map { it[PREFERRED_BITRATE] ?: 0 }
+    override suspend fun setPreferredBitrate(bitrate: Int) { dataStore.edit { it[PREFERRED_BITRATE] = bitrate } }
 }

app/src/main/java/com/radiola/data/repository/StationRepositoryImpl.kt

@@ -8,6 +8,7 @@ import com.radiola.data.remote.RecordApi
 import com.radiola.data.remote.RadiolaApi
 import com.radiola.data.remote.ApiMapper.toDomain
 import com.radiola.domain.model.Station
+import com.radiola.domain.model.StreamQuality
 import com.radiola.domain.repository.StationRepository
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.MutableStateFlow
@@ -84,7 +85,8 @@ class StationRepositoryImpl @Inject constructor(
                     tags = station.tags.joinToString(","),
                     sortOrder = index,
                     source = station.source,
-                    isFavorite = false
+                    isFavorite = false,
+                    qualities = encodeQualities(station.qualities)
                 )
             }
             db.stationDao().insertAll(entities)
@@ -133,6 +135,22 @@ class StationRepositoryImpl @Inject constructor(
         genre = genre,
         tags = tags.split(",").filter { it.isNotBlank() },
         sortOrder = sortOrder,
-        source = source
+        source = source,
+        qualities = decodeQualities(qualities)
     )
+
+    // Качества кодируем строкой "bitrate\ttype\turl" по строкам (URL может содержать ; и |,
+    // но не \t/\n — поэтому такие разделители безопасны).
+    private fun encodeQualities(list: List<StreamQuality>): String =
+        list.joinToString("\n") { "${it.bitrate}\t${it.type}\t${it.url}" }
+
+    private fun decodeQualities(raw: String): List<StreamQuality> {
+        if (raw.isBlank()) return emptyList()
+        return raw.split("\n").mapNotNull { line ->
+            val parts = line.split("\t")
+            if (parts.size != 3) return@mapNotNull null
+            val br = parts[0].toIntOrNull() ?: return@mapNotNull null
+            StreamQuality(br, parts[2], parts[1])
+        }
+    }
 }

app/src/main/java/com/radiola/di/AppModule.kt

@@ -7,6 +7,7 @@ import com.radiola.data.local.LocalStationDataSource
 import com.radiola.data.local.MIGRATION_1_2
 import com.radiola.data.local.MIGRATION_2_3
 import com.radiola.data.local.MIGRATION_3_4
+import com.radiola.data.local.MIGRATION_4_5
 import com.radiola.data.remote.AuthInterceptor
 import com.radiola.data.remote.LrcLibApi
 import com.radiola.data.remote.LoveApi
@@ -136,7 +137,7 @@ object AppModule {
     @Singleton
     fun provideDatabase(@ApplicationContext context: Context): AppDatabase =
         Room.databaseBuilder(context, AppDatabase::class.java, "radiola.db")
-            .addMigrations(MIGRATION_1_2, MIGRATION_2_3, MIGRATION_3_4)
+            .addMigrations(MIGRATION_1_2, MIGRATION_2_3, MIGRATION_3_4, MIGRATION_4_5)
             .build()
 
     @Provides

app/src/main/java/com/radiola/domain/model/Station.kt

@@ -9,5 +9,24 @@ data class Station(
     val genre: String,
     val tags: List<String>,
     val sortOrder: Int,
-    val source: String = "record"
+    val source: String = "record",
+    // Доступные качества потока (битрейты). Пусто или один элемент — переключателя нет.
+    val qualities: List<StreamQuality> = emptyList()
 )
+
+/** Один вариант качества потока станции. */
+data class StreamQuality(
+    val bitrate: Int,   // kbps
+    val url: String,
+    val type: String    // "aac" | "mp3"
+) {
+    /** Человекочитаемая ступень качества по битрейту. */
+    val tierLabel: String
+        get() = when {
+            bitrate >= 256 -> "Максимальное"
+            bitrate >= 128 -> "Высокое"
+            bitrate >= 96 -> "Среднее"
+            bitrate >= 64 -> "Экономно"
+            else -> "Минимальное"
+        }
+}

app/src/main/java/com/radiola/domain/repository/SettingsRepository.kt

@@ -14,4 +14,7 @@ interface SettingsRepository {
     suspend fun setEqualizerPreset(preset: String)
     fun isRecordingEnabled(): Flow<Boolean>
     suspend fun setRecordingEnabled(enabled: Boolean)
+    // Предпочитаемый битрейт (kbps). 0 = авто (брать качество по умолчанию станции).
+    fun getPreferredBitrate(): Flow<Int>
+    suspend fun setPreferredBitrate(bitrate: Int)
 }

app/src/main/java/com/radiola/service/PlayerController.kt

@@ -154,6 +154,18 @@ class PlayerController @Inject constructor(
         _currentStationPrefix.value = stationPrefix
     }
 
+    /** Сменить URL потока (переключение качества) без потери текущих метаданных/обложки. */
+    fun changeStream(url: String) {
+        Log.d("PlayerController", "changeStream() url=$url")
+        val keepMetadata = exoPlayer.currentMediaItem?.mediaMetadata
+        _icyTitle.value = null
+        val builder = MediaItem.Builder().setUri(url)
+        if (keepMetadata != null) builder.setMediaMetadata(keepMetadata)
+        exoPlayer.setMediaItem(builder.build())
+        exoPlayer.prepare()
+        exoPlayer.play()
+    }
+
     fun updateMetadata(song: String, artist: String, coverUrl: String, stationName: String) {
         val currentMediaItem = exoPlayer.currentMediaItem ?: return
         val artworkUri = coverUrl.takeIf { it.isNotBlank() }?.let { Uri.parse(it) }

app/src/main/java/com/radiola/ui/player/PlayerBottomSheet.kt

@@ -35,6 +35,7 @@ import coil.compose.AsyncImage
 import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.ModalBottomSheet
 import androidx.compose.material3.rememberModalBottomSheetState
+import com.composables.icons.lucide.Check
 import com.composables.icons.lucide.FileText
 import com.composables.icons.lucide.Heart
 import com.composables.icons.lucide.Lucide
@@ -46,6 +47,7 @@ import com.composables.icons.lucide.Play
 import com.composables.icons.lucide.Radio
 import com.composables.icons.lucide.SkipBack
 import com.composables.icons.lucide.SkipForward
+import com.composables.icons.lucide.SlidersHorizontal
 import com.radiola.deeplink.DeeplinkNavigator
 import com.radiola.domain.model.DeeplinkService
 import com.radiola.domain.model.Station
@@ -77,6 +79,8 @@ fun PlayerBottomSheet(
     val colors = RadiolaTheme.colors
     val haptics = LocalHapticFeedback.current
     var showLyrics by remember { mutableStateOf(false) }
+    var showQuality by remember { mutableStateOf(false) }
+    val currentQuality by viewModel.currentQuality.collectAsState()
 
     Column(
         modifier = modifier
@@ -86,14 +90,27 @@ fun PlayerBottomSheet(
             .padding(horizontal = 24.dp, vertical = 20.dp),
         horizontalAlignment = Alignment.CenterHorizontally
     ) {
-        // Метка «В ЭФИРЕ»
+        // Метка «В ЭФИРЕ» + чип качества справа (если у станции есть варианты)
-        Text(
+        Box(modifier = Modifier.fillMaxWidth(), contentAlignment = Alignment.Center) {
-            text = "В ЭФИРЕ",
+            Text(
-            style = MaterialTheme.typography.labelSmall,
+                text = "В ЭФИРЕ",
-            color = colors.accent,
+                style = MaterialTheme.typography.labelSmall,
-            letterSpacing = 2.sp,
+                color = colors.accent,
-            fontWeight = FontWeight.SemiBold
+                letterSpacing = 2.sp,
-        )
+                fontWeight = FontWeight.SemiBold
+            )
+            val qualities = station?.qualities.orEmpty()
+            if (qualities.size >= 2) {
+                QualityChip(
+                    label = "${(currentQuality?.bitrate ?: qualities.first().bitrate)}k",
+                    onClick = {
+                        haptics.performHapticFeedback(HapticFeedbackType.LongPress)
+                        showQuality = true
+                    },
+                    modifier = Modifier.align(Alignment.CenterEnd)
+                )
+            }
+        }
         Spacer(Modifier.height(6.dp))
 
         // Название радиостанции — под меткой, над обложкой
@@ -309,6 +326,43 @@ fun PlayerBottomSheet(
         }
     }
 
+    // Шторка выбора качества
+    if (showQuality && station != null) {
+        val qualities = station.qualities
+        ModalBottomSheet(
+            onDismissRequest = { showQuality = false },
+            containerColor = colors.bgBase,
+            sheetState = rememberModalBottomSheetState(skipPartiallyExpanded = true)
+        ) {
+            Column(
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .navigationBarsPadding()
+                    .padding(horizontal = 24.dp)
+                    .padding(bottom = 16.dp)
+            ) {
+                Text(
+                    text = "Качество звука",
+                    style = MaterialTheme.typography.titleMedium,
+                    color = colors.textPrimary,
+                    fontWeight = FontWeight.SemiBold,
+                    modifier = Modifier.padding(vertical = 12.dp)
+                )
+                qualities.forEach { q ->
+                    QualityRow(
+                        quality = q,
+                        selected = currentQuality?.bitrate == q.bitrate,
+                        onClick = {
+                            haptics.performHapticFeedback(HapticFeedbackType.LongPress)
+                            viewModel.selectQuality(q)
+                            showQuality = false
+                        }
+                    )
+                }
+            }
+        }
+    }
+
     // Шторка текста песни
     if (showLyrics && track != null) {
         ModalBottomSheet(
@@ -324,6 +378,80 @@ fun PlayerBottomSheet(
     }
 }
 
+/** Компактный чип текущего качества звука. */
+@Composable
+private fun QualityChip(
+    label: String,
+    onClick: () -> Unit,
+    modifier: Modifier = Modifier
+) {
+    val colors = RadiolaTheme.colors
+    val interaction = remember { MutableInteractionSource() }
+    Row(
+        modifier = modifier
+            .clip(RoundedCornerShape(50))
+            .background(colors.surface2)
+            .pressScale(interactionSource = interaction)
+            .clickable(interactionSource = interaction, indication = null, onClick = onClick)
+            .padding(horizontal = 10.dp, vertical = 5.dp),
+        verticalAlignment = Alignment.CenterVertically,
+        horizontalArrangement = Arrangement.spacedBy(4.dp)
+    ) {
+        Icon(
+            imageVector = Lucide.SlidersHorizontal,
+            contentDescription = "Качество",
+            tint = colors.accent,
+            modifier = Modifier.size(13.dp)
+        )
+        Text(
+            text = label,
+            style = MaterialTheme.typography.labelMedium,
+            color = colors.textPrimary,
+            fontWeight = FontWeight.SemiBold
+        )
+    }
+}
+
+/** Строка выбора одного качества в шторке. */
+@Composable
+private fun QualityRow(
+    quality: com.radiola.domain.model.StreamQuality,
+    selected: Boolean,
+    onClick: () -> Unit
+) {
+    val colors = RadiolaTheme.colors
+    Row(
+        modifier = Modifier
+            .fillMaxWidth()
+            .clip(RoundedCornerShape(14.dp))
+            .clickable(onClick = onClick)
+            .padding(horizontal = 14.dp, vertical = 14.dp),
+        verticalAlignment = Alignment.CenterVertically
+    ) {
+        Column(modifier = Modifier.weight(1f)) {
+            Text(
+                text = quality.tierLabel,
+                style = MaterialTheme.typography.bodyLarge,
+                color = if (selected) colors.accent else colors.textPrimary,
+                fontWeight = if (selected) FontWeight.SemiBold else FontWeight.Normal
+            )
+            Text(
+                text = "${quality.bitrate} kbps · ${quality.type.uppercase()}",
+                style = MaterialTheme.typography.bodySmall,
+                color = colors.textSecondary
+            )
+        }
+        if (selected) {
+            Icon(
+                imageVector = Lucide.Check,
+                contentDescription = "Выбрано",
+                tint = colors.accent,
+                modifier = Modifier.size(20.dp)
+            )
+        }
+    }
+}
+
 /** Обёртка для иконок-кнопок управления — прозрачный фон. */
 @Composable
 private fun PlayerIconBtn(

app/src/main/java/com/radiola/ui/player/PlayerViewModel.kt

@@ -4,6 +4,7 @@ import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import com.radiola.domain.model.DeeplinkService
 import com.radiola.domain.model.Station
+import com.radiola.domain.model.StreamQuality
 import com.radiola.domain.model.Track
 import com.radiola.domain.repository.SettingsRepository
 import com.radiola.domain.repository.StationRepository
@@ -57,6 +58,13 @@ class PlayerViewModel @Inject constructor(
     private val _playlist = MutableStateFlow<List<Station>>(emptyList())
     val playlist: StateFlow<List<Station>> = _playlist.asStateFlow()
 
+    // Выбранное качество текущей станции (битрейт). null — у станции нет вариантов.
+    private val _currentQuality = MutableStateFlow<StreamQuality?>(null)
+    val currentQuality: StateFlow<StreamQuality?> = _currentQuality.asStateFlow()
+
+    // Предпочитаемый битрейт пользователя (0 = авто/по умолчанию станции).
+    private var preferredBitrate: Int = 0
+
     val isRecording: StateFlow<Boolean> = recordingRepository.isRecording
 
     private var nowPlayingJob: Job? = null
@@ -72,6 +80,9 @@ class PlayerViewModel @Inject constructor(
                 _enabledServices.value = DeeplinkService.entries.filter { it.serviceId in ids }
             }
         }
+        viewModelScope.launch {
+            settingsRepository.getPreferredBitrate().collect { preferredBitrate = it }
+        }
         viewModelScope.launch {
             _currentTrack
                 .filterNotNull()
@@ -86,10 +97,15 @@ class PlayerViewModel @Inject constructor(
         _currentStation.value = station
         _currentTrack.value = null
         _playlist.value = playlist ?: _stations.value
+        // Выбираем стартовое качество: предпочтение пользователя → совпадение с
+        // потоком по умолчанию → высшее. Если вариантов нет — играем как есть.
+        val quality = pickInitialQuality(station)
+        _currentQuality.value = quality
+        val streamUrl = quality?.url ?: station.streamUrl
         // Love Radio: подставляем сессионный UID (иначе поток отдаёт заглушку).
         // Для остальных resolve вернёт URL как есть.
         viewModelScope.launch {
-            val url = loveStreamResolver.resolve(station.streamUrl)
+            val url = loveStreamResolver.resolve(streamUrl)
             playerController.play(url, station.prefix, station.name)
         }
         viewModelScope.launch { pushHistoryUseCase(station.id) }
@@ -142,6 +158,28 @@ class PlayerViewModel @Inject constructor(
         }
     }
 
+    /** Стартовое качество станции с учётом предпочтения пользователя. */
+    private fun pickInitialQuality(station: Station): StreamQuality? {
+        val list = station.qualities
+        if (list.size < 2) return null
+        return list.firstOrNull { it.bitrate == preferredBitrate }
+            ?: list.firstOrNull { it.url == station.streamUrl }
+            ?: list.first()
+    }
+
+    /** Переключить качество текущей станции на лету (без сброса now-playing). */
+    fun selectQuality(quality: StreamQuality) {
+        val station = _currentStation.value ?: return
+        if (_currentQuality.value?.bitrate == quality.bitrate) return
+        _currentQuality.value = quality
+        preferredBitrate = quality.bitrate
+        viewModelScope.launch { settingsRepository.setPreferredBitrate(quality.bitrate) }
+        viewModelScope.launch {
+            val url = loveStreamResolver.resolve(quality.url)
+            playerController.changeStream(url)
+        }
+    }
+
     private fun parseIcyTitle(title: String?): Track? {
         if (title.isNullOrBlank()) return null
         val separators = listOf(" - ", " — ", " – ")