refactor: Include media data in HomeCache so the first startup is faster.

core/data/src/main/java/hu/bbara/purefin/core/data/HomeRepository.kt

@@ -2,8 +2,8 @@ package hu.bbara.purefin.core.data
 
 import hu.bbara.purefin.core.model.Library
 import hu.bbara.purefin.core.model.Media
-import java.util.UUID
 import kotlinx.coroutines.flow.StateFlow
+import java.util.UUID
 
 interface HomeRepository {
     val libraries: StateFlow<List<Library>>
@@ -11,6 +11,6 @@ interface HomeRepository {
     val continueWatching: StateFlow<List<Media>>
     val nextUp: StateFlow<List<Media>>
     val latestLibraryContent: StateFlow<Map<UUID, List<Media>>>
-    suspend fun ensureReady()
-    suspend fun refreshHomeData()
+    fun ensureReady()
+    fun refreshHomeData()
 }

data/catalog/src/main/java/hu/bbara/purefin/data/catalog/InMemoryAppContentRepository.kt

@@ -4,12 +4,9 @@ import android.util.Log
 import androidx.datastore.core.DataStore
 import hu.bbara.purefin.core.data.HomeRepository
 import hu.bbara.purefin.core.data.NetworkMonitor
-import hu.bbara.purefin.core.image.ArtworkKind
-import hu.bbara.purefin.data.offline.cache.CachedMediaItem
-import hu.bbara.purefin.data.offline.cache.HomeCache
-import hu.bbara.purefin.data.jellyfin.client.JellyfinApiClient
-import hu.bbara.purefin.core.image.ImageUrlBuilder
 import hu.bbara.purefin.core.data.session.UserSessionRepository
+import hu.bbara.purefin.core.image.ArtworkKind
+import hu.bbara.purefin.core.image.ImageUrlBuilder
 import hu.bbara.purefin.core.model.Episode
 import hu.bbara.purefin.core.model.Library
 import hu.bbara.purefin.core.model.LibraryKind
@@ -17,13 +14,18 @@ import hu.bbara.purefin.core.model.Media
 import hu.bbara.purefin.core.model.Movie
 import hu.bbara.purefin.core.model.Season
 import hu.bbara.purefin.core.model.Series
-import java.time.LocalDateTime
-import java.time.format.DateTimeFormatter
-import java.util.Locale
-import java.util.UUID
-import java.util.concurrent.TimeUnit
-import javax.inject.Inject
-import javax.inject.Singleton
+import hu.bbara.purefin.data.jellyfin.client.JellyfinApiClient
+import hu.bbara.purefin.data.offline.cache.HomeCache
+import hu.bbara.purefin.data.offline.cache.toCachedEpisode
+import hu.bbara.purefin.data.offline.cache.toCachedItem
+import hu.bbara.purefin.data.offline.cache.toCachedLibrary
+import hu.bbara.purefin.data.offline.cache.toCachedMovie
+import hu.bbara.purefin.data.offline.cache.toCachedSeries
+import hu.bbara.purefin.data.offline.cache.toEpisode
+import hu.bbara.purefin.data.offline.cache.toLibrary
+import hu.bbara.purefin.data.offline.cache.toMedia
+import hu.bbara.purefin.data.offline.cache.toMovie
+import hu.bbara.purefin.data.offline.cache.toSeries
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
@@ -33,11 +35,18 @@ import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.asStateFlow
 import kotlinx.coroutines.flow.first
 import kotlinx.coroutines.launch
-import kotlinx.coroutines.sync.Mutex
-import kotlinx.coroutines.sync.withLock
 import org.jellyfin.sdk.model.api.BaseItemDto
 import org.jellyfin.sdk.model.api.BaseItemKind
 import org.jellyfin.sdk.model.api.CollectionType
+import java.time.LocalDateTime
+import java.time.format.DateTimeFormatter
+import java.util.Locale
+import java.util.UUID
+import java.util.concurrent.TimeUnit
+import javax.inject.Inject
+import javax.inject.Singleton
+import kotlin.concurrent.atomics.AtomicBoolean
+import kotlin.concurrent.atomics.ExperimentalAtomicApi
 
 @Singleton
 class InMemoryAppContentRepository @Inject constructor(
@@ -48,10 +57,10 @@ class InMemoryAppContentRepository @Inject constructor(
     private val networkMonitor: NetworkMonitor,
 ) : HomeRepository {
     private val scope = CoroutineScope(SupervisorJob() + Dispatchers.IO)
-    private val ensureReadyMutex = Mutex()
     private var refreshJob: Job? = null
-    private var cacheHydrated = false
-    private var initialized = false
+
+    @OptIn(ExperimentalAtomicApi::class)
+    private val initialized = AtomicBoolean(false)
 
     private val librariesState = MutableStateFlow<List<Library>>(emptyList())
     override val libraries: StateFlow<List<Library>> = librariesState.asStateFlow()
@@ -74,27 +83,24 @@ class InMemoryAppContentRepository @Inject constructor(
         }
     }
 
-    override suspend fun ensureReady() {
-        ensureReadyMutex.withLock {
-            hydrateCacheIfNeeded()
-            if (initialized) {
-                return
-            }
-            initialized = true
+    @OptIn(ExperimentalAtomicApi::class)
+    override fun ensureReady() {
+        if (!initialized.compareAndSet(expectedValue = false, newValue = true)) {
+            return
         }
-        refreshHomeData()
+        Log.d(TAG, "Initializing home repository")
+        scope.launch { loadHomeCache() }
+        scope.launch { refreshHomeData() }
     }
 
-    override suspend fun refreshHomeData() {
-        ensureReadyMutex.withLock {
-            hydrateCacheIfNeeded()
-        }
+    @Synchronized
+    override fun refreshHomeData() {
         if (refreshJob?.isActive == true) {
-            refreshJob?.join()
             return
         }
         val job = scope.launch {
             runCatching {
+                Log.d(TAG, "Refreshing home data")
                 if (!networkMonitor.isOnline.first()) {
                     return@runCatching
                 }
@@ -103,23 +109,28 @@ class InMemoryAppContentRepository @Inject constructor(
                 loadContinueWatching()
                 loadNextUp()
                 loadLatestLibraryContent()
+                Log.d(TAG, "Home refresh successful")
                 persistHomeCache()
             }.onFailure { error ->
                 Log.w(TAG, "Home refresh failed; keeping cached content", error)
             }
         }
         refreshJob = job
-        job.join()
     }
 
-    private suspend fun hydrateCacheIfNeeded() {
-        if (cacheHydrated) return
-        loadFromCache()
-        cacheHydrated = true
-    }
-
-    private suspend fun loadFromCache() {
+    private suspend fun loadHomeCache() {
+        Log.d(TAG, "Loading home cache")
         val cache = homeCacheDataStore.data.first()
+        if (cache.libraries.isNotEmpty()) {
+            val libraries = cache.libraries.mapNotNull { it.toLibrary() }
+            librariesState.value = libraries
+            onlineMediaRepository.upsertMovies(
+                libraries.filter { it.type == LibraryKind.MOVIES }.flatMap { it.movies.orEmpty() }
+            )
+            onlineMediaRepository.upsertSeries(
+                libraries.filter { it.type == LibraryKind.SERIES }.flatMap { it.series.orEmpty() }
+            )
+        }
         if (cache.suggestions.isNotEmpty()) {
             suggestionsState.value = cache.suggestions.mapNotNull { it.toMedia() }
         }
@@ -135,9 +146,23 @@ class InMemoryAppContentRepository @Inject constructor(
                 uuid to items.mapNotNull { it.toMedia() }
             }.toMap()
         }
+        if (cache.movies.isNotEmpty()) {
+            onlineMediaRepository.upsertMovies(cache.movies.mapNotNull { it.toMovie() })
+        }
+        if (cache.series.isNotEmpty()) {
+            onlineMediaRepository.upsertSeries(cache.series.mapNotNull { it.toSeries() })
+        }
+        if (cache.episodes.isNotEmpty()) {
+            onlineMediaRepository.upsertEpisodes(cache.episodes.mapNotNull { it.toEpisode() })
+        }
+        Log.d(TAG, "Home cache loaded")
     }
 
     private suspend fun persistHomeCache() {
+        val referencedMediaIds = collectReferencedMediaIds()
+        val movies = onlineMediaRepository.movies.value
+        val series = onlineMediaRepository.series.value
+        val episodes = onlineMediaRepository.episodes.value
         val cache = HomeCache(
             suggestions = suggestionsState.value.map { it.toCachedItem() },
             continueWatching = continueWatchingState.value.map { it.toCachedItem() },
@@ -145,27 +170,39 @@ class InMemoryAppContentRepository @Inject constructor(
             latestLibraryContent = latestLibraryContentState.value.map { (uuid, items) ->
                 uuid.toString() to items.map { it.toCachedItem() }
             }.toMap(),
+            libraries = librariesState.value.map { it.toCachedLibrary() },
+            movies = referencedMediaIds.movieIds.mapNotNull { movies[it] }.map { it.toCachedMovie() },
+            series = referencedMediaIds.seriesIds.mapNotNull { series[it] }.map { it.toCachedSeries() },
+            episodes = referencedMediaIds.episodeIds.mapNotNull { episodes[it] }.map { it.toCachedEpisode() },
         )
         homeCacheDataStore.updateData { cache }
     }
 
-    private fun Media.toCachedItem(): CachedMediaItem = when (this) {
-        is Media.MovieMedia -> CachedMediaItem(type = "MOVIE", id = movieId.toString())
-        is Media.SeriesMedia -> CachedMediaItem(type = "SERIES", id = seriesId.toString())
-        is Media.SeasonMedia -> CachedMediaItem(type = "SEASON", id = seasonId.toString(), seriesId = seriesId.toString())
-        is Media.EpisodeMedia -> CachedMediaItem(type = "EPISODE", id = episodeId.toString(), seriesId = seriesId.toString())
-    }
-
-    private fun CachedMediaItem.toMedia(): Media? {
-        val uuid = runCatching { UUID.fromString(id) }.getOrNull() ?: return null
-        val seriesUuid = seriesId?.let { runCatching { UUID.fromString(it) }.getOrNull() }
-        return when (type) {
-            "MOVIE" -> Media.MovieMedia(movieId = uuid)
-            "SERIES" -> Media.SeriesMedia(seriesId = uuid)
-            "SEASON" -> Media.SeasonMedia(seasonId = uuid, seriesId = seriesUuid ?: return null)
-            "EPISODE" -> Media.EpisodeMedia(episodeId = uuid, seriesId = seriesUuid ?: return null)
-            else -> null
+    private fun collectReferencedMediaIds(): ReferencedHomeMediaIds {
+        val movieIds = mutableSetOf<UUID>()
+        val seriesIds = mutableSetOf<UUID>()
+        val episodeIds = mutableSetOf<UUID>()
+        val referencedMedia = buildList {
+            addAll(suggestionsState.value)
+            addAll(continueWatchingState.value)
+            addAll(nextUpState.value)
+            latestLibraryContentState.value.values.forEach { addAll(it) }
         }
+
+        referencedMedia.forEach { media ->
+            when (media) {
+                is Media.MovieMedia -> movieIds += media.movieId
+                is Media.SeriesMedia -> seriesIds += media.seriesId
+                is Media.SeasonMedia -> seriesIds += media.seriesId
+                is Media.EpisodeMedia -> episodeIds += media.episodeId
+            }
+        }
+
+        return ReferencedHomeMediaIds(
+            movieIds = movieIds,
+            seriesIds = seriesIds,
+            episodeIds = episodeIds,
+        )
     }
 
     suspend fun loadLibraries() {
@@ -419,3 +456,9 @@ class InMemoryAppContentRepository @Inject constructor(
         private const val TAG = "InMemoryAppContentRepo"
     }
 }
+
+private data class ReferencedHomeMediaIds(
+    val movieIds: Set<UUID>,
+    val seriesIds: Set<UUID>,
+    val episodeIds: Set<UUID>,
+)

data/offline/src/main/java/hu/bbara/purefin/data/offline/cache/HomeCache.kt

@@ -1,6 +1,70 @@
 package hu.bbara.purefin.data.offline.cache
 
+import hu.bbara.purefin.core.model.CastMember
+import hu.bbara.purefin.core.model.Episode
+import hu.bbara.purefin.core.model.Library
+import hu.bbara.purefin.core.model.LibraryKind
+import hu.bbara.purefin.core.model.Media
+import hu.bbara.purefin.core.model.Movie
+import hu.bbara.purefin.core.model.Series
 import kotlinx.serialization.Serializable
+import java.util.UUID
+
+@Serializable
+data class CachedCastMember(
+    val name: String,
+    val role: String,
+    val imageUrl: String? = null
+)
+
+@Serializable
+data class CachedMovie(
+    val id: String,
+    val libraryId: String,
+    val title: String,
+    val progress: Double? = null,
+    val watched: Boolean,
+    val year: String,
+    val rating: String,
+    val runtime: String,
+    val format: String,
+    val synopsis: String,
+    val imageUrlPrefix: String,
+    val audioTrack: String,
+    val subtitles: String,
+    val cast: List<CachedCastMember> = emptyList()
+)
+
+@Serializable
+data class CachedSeries(
+    val id: String,
+    val libraryId: String,
+    val name: String,
+    val synopsis: String,
+    val year: String,
+    val imageUrlPrefix: String,
+    val unwatchedEpisodeCount: Int,
+    val seasonCount: Int,
+    val cast: List<CachedCastMember> = emptyList()
+)
+
+@Serializable
+data class CachedEpisode(
+    val id: String,
+    val seriesId: String,
+    val seasonId: String,
+    val index: Int,
+    val title: String,
+    val synopsis: String,
+    val releaseDate: String,
+    val rating: String,
+    val runtime: String,
+    val progress: Double? = null,
+    val watched: Boolean,
+    val format: String,
+    val imageUrlPrefix: String,
+    val cast: List<CachedCastMember> = emptyList()
+)
 
 @Serializable
 data class CachedMediaItem(
@@ -9,10 +73,193 @@ data class CachedMediaItem(
     val seriesId: String? = null
 )
 
+@Serializable
+data class CachedLibrary(
+    val id: String,
+    val name: String,
+    val type: String,
+    val posterUrl: String,
+    val series: List<CachedSeries>? = null,
+    val movies: List<CachedMovie>? = null,
+)
+
 @Serializable
 data class HomeCache(
     val suggestions: List<CachedMediaItem> = emptyList(),
     val continueWatching: List<CachedMediaItem> = emptyList(),
     val nextUp: List<CachedMediaItem> = emptyList(),
-    val latestLibraryContent: Map<String, List<CachedMediaItem>> = emptyMap()
+    val latestLibraryContent: Map<String, List<CachedMediaItem>> = emptyMap(),
+    val libraries: List<CachedLibrary> = emptyList(),
+    val movies: List<CachedMovie> = emptyList(),
+    val series: List<CachedSeries> = emptyList(),
+    val episodes: List<CachedEpisode> = emptyList()
 )
+
+fun Library.toCachedLibrary() = CachedLibrary(
+    id = id.toString(),
+    name = name,
+    type = type.name,
+    posterUrl = posterUrl,
+    series = series?.map { it.toCachedSeries() },
+    movies = movies?.map { it.toCachedMovie() },
+)
+
+fun CachedLibrary.toLibrary(): Library? {
+    val libraryId = id.toUuidOrNull() ?: return null
+    return when (type) {
+        "MOVIES" -> Library(
+            id = libraryId,
+            name = name,
+            type = LibraryKind.MOVIES,
+            posterUrl = posterUrl,
+            movies = movies?.mapNotNull { it.toMovie() } ?: emptyList(),
+        )
+        "SERIES" -> Library(
+            id = libraryId,
+            name = name,
+            type = LibraryKind.SERIES,
+            posterUrl = posterUrl,
+            series = series?.mapNotNull { it.toSeries() } ?: emptyList(),
+        )
+        else -> null
+    }
+}
+
+fun Media.toCachedItem(): CachedMediaItem = when (this) {
+    is Media.MovieMedia -> CachedMediaItem(type = "MOVIE", id = movieId.toString())
+    is Media.SeriesMedia -> CachedMediaItem(type = "SERIES", id = seriesId.toString())
+    is Media.SeasonMedia -> CachedMediaItem(type = "SEASON", id = seasonId.toString(), seriesId = seriesId.toString())
+    is Media.EpisodeMedia -> CachedMediaItem(type = "EPISODE", id = episodeId.toString(), seriesId = seriesId.toString())
+}
+
+fun CachedMediaItem.toMedia(): Media? {
+    val uuid = runCatching { UUID.fromString(id) }.getOrNull() ?: return null
+    val seriesUuid = seriesId?.let { runCatching { UUID.fromString(it) }.getOrNull() }
+    return when (type) {
+        "MOVIE" -> Media.MovieMedia(movieId = uuid)
+        "SERIES" -> Media.SeriesMedia(seriesId = uuid)
+        "SEASON" -> Media.SeasonMedia(seasonId = uuid, seriesId = seriesUuid ?: return null)
+        "EPISODE" -> Media.EpisodeMedia(episodeId = uuid, seriesId = seriesUuid ?: return null)
+        else -> null
+    }
+}
+
+fun Movie.toCachedMovie() = CachedMovie(
+    id = id.toString(),
+    libraryId = libraryId.toString(),
+    title = title,
+    progress = progress,
+    watched = watched,
+    year = year,
+    rating = rating,
+    runtime = runtime,
+    format = format,
+    synopsis = synopsis,
+    imageUrlPrefix = imageUrlPrefix,
+    audioTrack = audioTrack,
+    subtitles = subtitles,
+    cast = cast.map { it.toCachedCastMember() },
+)
+
+fun CachedMovie.toMovie(): Movie? {
+    val movieId = id.toUuidOrNull() ?: return null
+    val libraryUuid = libraryId.toUuidOrNull() ?: return null
+    return Movie(
+        id = movieId,
+        libraryId = libraryUuid,
+        title = title,
+        progress = progress,
+        watched = watched,
+        year = year,
+        rating = rating,
+        runtime = runtime,
+        format = format,
+        synopsis = synopsis,
+        imageUrlPrefix = imageUrlPrefix,
+        audioTrack = audioTrack,
+        subtitles = subtitles,
+        cast = cast.map { it.toCastMember() },
+    )
+}
+
+fun Series.toCachedSeries() = CachedSeries(
+    id = id.toString(),
+    libraryId = libraryId.toString(),
+    name = name,
+    synopsis = synopsis,
+    year = year,
+    imageUrlPrefix = imageUrlPrefix,
+    unwatchedEpisodeCount = unwatchedEpisodeCount,
+    seasonCount = seasonCount,
+    cast = cast.map { it.toCachedCastMember() },
+)
+
+fun CachedSeries.toSeries(): Series? {
+    val seriesId = id.toUuidOrNull() ?: return null
+    val libraryUuid = libraryId.toUuidOrNull() ?: return null
+    return Series(
+        id = seriesId,
+        libraryId = libraryUuid,
+        name = name,
+        synopsis = synopsis,
+        year = year,
+        imageUrlPrefix = imageUrlPrefix,
+        unwatchedEpisodeCount = unwatchedEpisodeCount,
+        seasonCount = seasonCount,
+        seasons = emptyList(),
+        cast = cast.map { it.toCastMember() },
+    )
+}
+
+fun Episode.toCachedEpisode() = CachedEpisode(
+    id = id.toString(),
+    seriesId = seriesId.toString(),
+    seasonId = seasonId.toString(),
+    index = index,
+    title = title,
+    synopsis = synopsis,
+    releaseDate = releaseDate,
+    rating = rating,
+    runtime = runtime,
+    progress = progress,
+    watched = watched,
+    format = format,
+    imageUrlPrefix = imageUrlPrefix,
+    cast = cast.map { it.toCachedCastMember() },
+)
+
+fun CachedEpisode.toEpisode(): Episode? {
+    val episodeId = id.toUuidOrNull() ?: return null
+    val seriesUuid = seriesId.toUuidOrNull() ?: return null
+    val seasonUuid = seasonId.toUuidOrNull() ?: return null
+    return Episode(
+        id = episodeId,
+        seriesId = seriesUuid,
+        seasonId = seasonUuid,
+        index = index,
+        title = title,
+        synopsis = synopsis,
+        releaseDate = releaseDate,
+        rating = rating,
+        runtime = runtime,
+        progress = progress,
+        watched = watched,
+        format = format,
+        imageUrlPrefix = imageUrlPrefix,
+        cast = cast.map { it.toCastMember() },
+    )
+}
+
+private fun CastMember.toCachedCastMember() = CachedCastMember(
+    name = name,
+    role = role,
+    imageUrl = imageUrl,
+)
+
+private fun CachedCastMember.toCastMember() = CastMember(
+    name = name,
+    role = role,
+    imageUrl = imageUrl,
+)
+
+private fun String.toUuidOrNull(): UUID? = runCatching { UUID.fromString(this) }.getOrNull()