new: add adjustable break between phrases in playback settings

data/preferences/src/commonMain/kotlin/fr/ajaury/gwenedeg/preferences/data/InMemoryPreferencesRepository.kt

@@ -7,6 +7,7 @@ import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.asStateFlow
 import kotlinx.coroutines.flow.update
+import kotlin.time.Duration
 
 /**
  * In-memory [PreferencesRepository] used on platforms without a DataStore artifact (web). Values do
@@ -34,4 +35,8 @@ internal class InMemoryPreferencesRepository : PreferencesRepository {
     override suspend fun setPlaybackSpeed(speed: Float) {
         playbackState.update { it.copy(speed = speed) }
     }
+
+    override suspend fun setBreakBetweenPhrases(duration: Duration) {
+        playbackState.update { it.copy(breakBetweenPhrases = duration) }
+    }
 }

data/preferences/src/commonMain/kotlin/fr/ajaury/gwenedeg/preferences/domain/PreferencesRepository.kt

@@ -3,6 +3,7 @@ package fr.ajaury.gwenedeg.preferences.domain
 import fr.ajaury.gwenedeg.preferences.model.PlaybackPreferences
 import fr.ajaury.gwenedeg.preferences.model.SubtitlePreferences
 import kotlinx.coroutines.flow.Flow
+import kotlin.time.Duration
 
 interface PreferencesRepository {
     val subtitlePreferences: Flow<SubtitlePreferences>
@@ -16,4 +17,6 @@ interface PreferencesRepository {
     suspend fun setSubtitleTextScale(scale: Float)
 
     suspend fun setPlaybackSpeed(speed: Float)
+
+    suspend fun setBreakBetweenPhrases(duration: Duration)
 }

data/preferences/src/commonMain/kotlin/fr/ajaury/gwenedeg/preferences/model/PlaybackPreferences.kt

@@ -1,18 +1,28 @@
 package fr.ajaury.gwenedeg.preferences.model
 
+import kotlin.time.Duration
+import kotlin.time.Duration.Companion.seconds
+
 /**
  * User preferences controlling audio playback.
  *
  * @property speed playback speed multiplier, clamped between [MIN_SPEED] and [MAX_SPEED] in
  * [SPEED_STEP] increments. [DEFAULT_SPEED] is the normal, unaltered speed.
+ * @property breakBetweenPhrases silent pause inserted when moving from one phrase to the next,
+ * between [DEFAULT_BREAK_BETWEEN_PHRASES] and [MAX_BREAK_BETWEEN_PHRASES] in [BREAK_STEP] steps.
  */
 data class PlaybackPreferences(
     val speed: Float = DEFAULT_SPEED,
+    val breakBetweenPhrases: Duration = DEFAULT_BREAK_BETWEEN_PHRASES,
 ) {
     companion object {
         const val DEFAULT_SPEED = 1f
         const val MIN_SPEED = 0.5f
         const val MAX_SPEED = 1f
         const val SPEED_STEP = 0.1f
+
+        val DEFAULT_BREAK_BETWEEN_PHRASES: Duration = Duration.ZERO
+        val MAX_BREAK_BETWEEN_PHRASES: Duration = 5.seconds
+        val BREAK_STEP: Duration = 1.seconds
     }
 }

data/preferences/src/dataStoreMain/kotlin/fr/ajaury/gwenedeg/preferences/data/DataStorePreferencesRepository.kt

@@ -6,12 +6,15 @@ import androidx.datastore.preferences.core.Preferences
 import androidx.datastore.preferences.core.booleanPreferencesKey
 import androidx.datastore.preferences.core.edit
 import androidx.datastore.preferences.core.floatPreferencesKey
+import androidx.datastore.preferences.core.intPreferencesKey
 import fr.ajaury.gwenedeg.preferences.domain.PreferencesRepository
 import fr.ajaury.gwenedeg.preferences.model.PlaybackPreferences
 import fr.ajaury.gwenedeg.preferences.model.SubtitlePreferences
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.map
+import kotlin.time.Duration
+import kotlin.time.Duration.Companion.seconds
 
 /**
  * [PreferencesRepository] persisting to a Preferences [DataStore]. Reads are exposed as hot
@@ -36,6 +39,9 @@ internal class DataStorePreferencesRepository(
 
     override suspend fun setPlaybackSpeed(speed: Float) = edit { it[PlaybackSpeedKey] = speed }
 
+    override suspend fun setBreakBetweenPhrases(duration: Duration) =
+        edit { it[BreakBetweenPhrasesSecondsKey] = duration.inWholeSeconds.toInt() }
+
     private suspend fun edit(transform: (MutablePreferences) -> Unit) {
         dataStore.edit(transform)
     }
@@ -52,6 +58,8 @@ internal class DataStorePreferencesRepository(
     private fun Preferences.toPlaybackPreferences(): PlaybackPreferences =
         PlaybackPreferences(
             speed = this[PlaybackSpeedKey] ?: PlaybackPreferences.DEFAULT_SPEED,
+            breakBetweenPhrases = this[BreakBetweenPhrasesSecondsKey]?.seconds
+                ?: PlaybackPreferences.DEFAULT_BREAK_BETWEEN_PHRASES,
         )
 
     private companion object {
@@ -59,5 +67,6 @@ internal class DataStorePreferencesRepository(
         val ShowTranslationKey = booleanPreferencesKey("show_translation")
         val SubtitleTextScaleKey = floatPreferencesKey("subtitle_text_scale")
         val PlaybackSpeedKey = floatPreferencesKey("playback_speed")
+        val BreakBetweenPhrasesSecondsKey = intPreferencesKey("break_between_phrases_seconds")
     }
 }