재생 중인 Session id를 저장/조회할 수 있도록 SessionRepository 수정 및 Usecase 구현

core/data/src/main/java/com/droidknights/app2023/core/data/di/DataModule.kt

@@ -11,6 +11,7 @@ import com.droidknights.app2023.core.data.repository.DefaultSponsorRepository
 import com.droidknights.app2023.core.data.repository.SessionRepository
 import com.droidknights.app2023.core.data.repository.SettingsRepository
 import com.droidknights.app2023.core.data.repository.SponsorRepository
+import com.droidknights.app2023.core.datastore.PlaybackPreferencesDataSource
 import dagger.Binds
 import dagger.Module
 import dagger.Provides
@@ -47,7 +48,8 @@ internal abstract class DataModule {
         @Singleton
         fun provideSessionRepository(
             githubRawApi: GithubRawApi,
-        ): SessionRepository = DefaultSessionRepository(githubRawApi)
+            playbackPreferencesDataSource: PlaybackPreferencesDataSource,
+        ): SessionRepository = DefaultSessionRepository(githubRawApi, playbackPreferencesDataSource)
 
         @Provides
         @Singleton

core/data/src/main/java/com/droidknights/app2023/core/data/repository/DefaultSessionRepository.kt

@@ -2,15 +2,18 @@ package com.droidknights.app2023.core.data.repository
 
 import com.droidknights.app2023.core.data.api.GithubRawApi
 import com.droidknights.app2023.core.data.mapper.toData
+import com.droidknights.app2023.core.datastore.PlaybackPreferencesDataSource
 import com.droidknights.app2023.core.model.Session
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.filterNotNull
+import kotlinx.coroutines.flow.map
 import kotlinx.coroutines.flow.update
 import javax.inject.Inject
 
 internal class DefaultSessionRepository @Inject constructor(
     private val githubRawApi: GithubRawApi,
+    private val preferencesDataSource: PlaybackPreferencesDataSource
 ) : SessionRepository {
     private var cachedSessions: List<Session> = emptyList()
 
@@ -48,4 +51,11 @@ internal class DefaultSessionRepository @Inject constructor(
             }
         }
     }
+
+    override fun getCurrentPlayingSessionId(): Flow<String?> =
+        preferencesDataSource.playbackData.map { it?.currentSessionId }
+
+    override suspend fun updateCurrentPlayingSessionId(sessionId: String) {
+        preferencesDataSource.updateCurrentSessionId(sessionId)
+    }
 }

core/data/src/main/java/com/droidknights/app2023/core/data/repository/SessionRepository.kt

@@ -12,4 +12,8 @@ interface SessionRepository {
     suspend fun getBookmarkedSessionIds(): Flow<Set<String>>
 
     suspend fun bookmarkSession(sessionId: String, bookmark: Boolean)
+
+    fun getCurrentPlayingSessionId(): Flow<String?>
+
+    suspend fun updateCurrentPlayingSessionId(sessionId: String)
 }

core/domain/src/main/java/com/droidknights/app2023/core/domain/usecase/GetCurrentPlayingSessionUseCase.kt

@@ -0,0 +1,13 @@
+package com.droidknights.app2023.core.domain.usecase
+
+import com.droidknights.app2023.core.data.repository.SessionRepository
+import kotlinx.coroutines.flow.firstOrNull
+import javax.inject.Inject
+
+class GetCurrentPlayingSessionUseCase @Inject constructor(
+    private val sessionRepository: SessionRepository,
+) {
+    suspend operator fun invoke(): String? {
+        return sessionRepository.getCurrentPlayingSessionId().firstOrNull()
+    }
+}

core/domain/src/main/java/com/droidknights/app2023/core/domain/usecase/UpdateCurrentPlayingSessionUseCase.kt

@@ -0,0 +1,13 @@
+package com.droidknights.app2023.core.domain.usecase
+
+import com.droidknights.app2023.core.data.repository.SessionRepository
+import javax.inject.Inject
+
+class UpdateCurrentPlayingSessionUseCase @Inject constructor(
+    private val sessionRepository: SessionRepository,
+) {
+
+    suspend operator fun invoke(sessionId: String) {
+        return sessionRepository.updateCurrentPlayingSessionId(sessionId)
+    }
+}