feat(domain): add gallery use cases and ThumbnailData entity

crim50n · crim50n · commit 3cca660ef11e · 2026-01-06T19:46:58.000+03:00
- Add ThumbnailData entity
- Add DeleteAllUnlikedUseCase for bulk delete
- Add GetGalleryItemsRawUseCase
- Add GetThumbnailInfoUseCase
- Add HideItemsUseCase
- Add LikeItemsUseCase
- Add ToggleLikeUseCase
- Update DomainModule with new use cases
- Update AiGenerationResult entity
- Update Grid entity
- Update GetGalleryPagedIdsUseCase
- Update GenerationResultRepository
- Update MediaStoreGateway
- Update GenerationResultDataSource
- Update BackgroundWorkObserver
diff --git a/domain/src/main/java/dev/minios/pdaiv1/domain/datasource/GenerationResultDataSource.kt b/domain/src/main/java/dev/minios/pdaiv1/domain/datasource/GenerationResultDataSource.kt
@@ -1,6 +1,7 @@
 package dev.minios.pdaiv1.domain.datasource
 
 import dev.minios.pdaiv1.domain.entity.AiGenerationResult
+import dev.minios.pdaiv1.domain.entity.ThumbnailData
 import io.reactivex.rxjava3.core.Completable
 import io.reactivex.rxjava3.core.Single
 
@@ -10,11 +11,16 @@ sealed interface GenerationResultDataSource {
         fun insert(result: AiGenerationResult): Single<Long>
         fun queryAll(): Single<List<AiGenerationResult>>
         fun queryAllIds(): Single<List<Long>>
+        fun queryAllIdsWithBlurHash(): Single<List<Pair<Long, String>>>
+        fun queryThumbnailInfoByIdList(idList: List<Long>): Single<List<ThumbnailData>>
         fun queryPage(limit: Int, offset: Int): Single<List<AiGenerationResult>>
         fun queryById(id: Long): Single<AiGenerationResult>
         fun queryByIdList(idList: List<Long>): Single<List<AiGenerationResult>>
         fun deleteById(id: Long): Completable
         fun deleteByIdList(idList: List<Long>): Completable
         fun deleteAll(): Completable
+        fun deleteAllUnliked(): Completable
+        fun likeByIds(idList: List<Long>): Completable
+        fun hideByIds(idList: List<Long>): Completable
     }
 }
diff --git a/domain/src/main/java/dev/minios/pdaiv1/domain/di/DomainModule.kt b/domain/src/main/java/dev/minios/pdaiv1/domain/di/DomainModule.kt
@@ -62,12 +62,24 @@ import dev.minios.pdaiv1.domain.usecase.gallery.GetAllGalleryUseCase
 import dev.minios.pdaiv1.domain.usecase.gallery.GetAllGalleryUseCaseImpl
 import dev.minios.pdaiv1.domain.usecase.gallery.GetGalleryItemsUseCase
 import dev.minios.pdaiv1.domain.usecase.gallery.GetGalleryItemsUseCaseImpl
+import dev.minios.pdaiv1.domain.usecase.gallery.GetGalleryItemsRawUseCase
+import dev.minios.pdaiv1.domain.usecase.gallery.GetGalleryItemsRawUseCaseImpl
 import dev.minios.pdaiv1.domain.usecase.gallery.GetGalleryPagedIdsUseCase
 import dev.minios.pdaiv1.domain.usecase.gallery.GetGalleryPagedIdsUseCaseImpl
 import dev.minios.pdaiv1.domain.usecase.gallery.GetMediaStoreInfoUseCase
 import dev.minios.pdaiv1.domain.usecase.gallery.GetMediaStoreInfoUseCaseImpl
+import dev.minios.pdaiv1.domain.usecase.gallery.GetThumbnailInfoUseCase
+import dev.minios.pdaiv1.domain.usecase.gallery.GetThumbnailInfoUseCaseImpl
 import dev.minios.pdaiv1.domain.usecase.gallery.ToggleImageVisibilityUseCase
 import dev.minios.pdaiv1.domain.usecase.gallery.ToggleImageVisibilityUseCaseImpl
+import dev.minios.pdaiv1.domain.usecase.gallery.ToggleLikeUseCase
+import dev.minios.pdaiv1.domain.usecase.gallery.ToggleLikeUseCaseImpl
+import dev.minios.pdaiv1.domain.usecase.gallery.DeleteAllUnlikedUseCase
+import dev.minios.pdaiv1.domain.usecase.gallery.DeleteAllUnlikedUseCaseImpl
+import dev.minios.pdaiv1.domain.usecase.gallery.LikeItemsUseCase
+import dev.minios.pdaiv1.domain.usecase.gallery.LikeItemsUseCaseImpl
+import dev.minios.pdaiv1.domain.usecase.gallery.HideItemsUseCase
+import dev.minios.pdaiv1.domain.usecase.gallery.HideItemsUseCaseImpl
 import dev.minios.pdaiv1.domain.usecase.generation.FalAiGenerationUseCase
 import dev.minios.pdaiv1.domain.usecase.generation.FalAiGenerationUseCaseImpl
 import dev.minios.pdaiv1.domain.usecase.generation.GetGenerationResultPagedUseCase
@@ -157,7 +169,9 @@ internal val useCasesModule = module {
     factoryOf(::GetGenerationResultPagedUseCaseImpl) bind GetGenerationResultPagedUseCase::class
     factoryOf(::GetAllGalleryUseCaseImpl) bind GetAllGalleryUseCase::class
     factoryOf(::GetGalleryItemsUseCaseImpl) bind GetGalleryItemsUseCase::class
+    factoryOf(::GetGalleryItemsRawUseCaseImpl) bind GetGalleryItemsRawUseCase::class
     factoryOf(::GetGalleryPagedIdsUseCaseImpl) bind GetGalleryPagedIdsUseCase::class
+    factoryOf(::GetThumbnailInfoUseCaseImpl) bind GetThumbnailInfoUseCase::class
     factoryOf(::GetGenerationResultUseCaseImpl) bind GetGenerationResultUseCase::class
     factoryOf(::DeleteGalleryItemUseCaseImpl) bind DeleteGalleryItemUseCase::class
     factoryOf(::DeleteGalleryItemsUseCaseImpl) bind DeleteGalleryItemsUseCase::class
@@ -182,6 +196,10 @@ internal val useCasesModule = module {
     factoryOf(::ObserveHordeProcessStatusUseCaseImpl) bind ObserveHordeProcessStatusUseCase::class
     factoryOf(::GetMediaStoreInfoUseCaseImpl) bind GetMediaStoreInfoUseCase::class
     factoryOf(::ToggleImageVisibilityUseCaseImpl) bind ToggleImageVisibilityUseCase::class
+    factoryOf(::ToggleLikeUseCaseImpl) bind ToggleLikeUseCase::class
+    factoryOf(::DeleteAllUnlikedUseCaseImpl) bind DeleteAllUnlikedUseCase::class
+    factoryOf(::LikeItemsUseCaseImpl) bind LikeItemsUseCase::class
+    factoryOf(::HideItemsUseCaseImpl) bind HideItemsUseCase::class
     factoryOf(::GetRandomImageUseCaseImpl) bind GetRandomImageUseCase::class
     factoryOf(::SaveLastResultToCacheUseCaseImpl) bind SaveLastResultToCacheUseCase::class
     factoryOf(::GetLastResultFromCacheUseCaseImpl) bind GetLastResultFromCacheUseCase::class
diff --git a/domain/src/main/java/dev/minios/pdaiv1/domain/entity/AiGenerationResult.kt b/domain/src/main/java/dev/minios/pdaiv1/domain/entity/AiGenerationResult.kt
@@ -21,10 +21,12 @@ data class AiGenerationResult(
     val subSeedStrength: Float,
     val denoisingStrength: Float,
     val hidden: Boolean,
+    val liked: Boolean = false,
     val mediaPath: String = "",
     val inputMediaPath: String = "",
     val mediaType: MediaType = MediaType.IMAGE,
     val modelName: String = "",
+    val blurHash: String = "",
 ) {
     enum class Type(val key: String) {
         TEXT_TO_IMAGE("txt2img"),
diff --git a/domain/src/main/java/dev/minios/pdaiv1/domain/entity/Grid.kt b/domain/src/main/java/dev/minios/pdaiv1/domain/entity/Grid.kt
@@ -1,8 +1,24 @@
 package dev.minios.pdaiv1.domain.entity
 
 enum class Grid(val size: Int) {
+    Fixed1(1),
     Fixed2(2),
     Fixed3(3),
     Fixed4(4),
-    Fixed5(5);
+    Fixed5(5),
+    Fixed6(6);
+
+    companion object {
+        fun fromSize(size: Int): Grid = entries.find { it.size == size } ?: Fixed3
+
+        fun zoomIn(current: Grid): Grid {
+            val index = entries.indexOf(current)
+            return if (index > 0) entries[index - 1] else current
+        }
+
+        fun zoomOut(current: Grid): Grid {
+            val index = entries.indexOf(current)
+            return if (index < entries.lastIndex) entries[index + 1] else current
+        }
+    }
 }
diff --git a/domain/src/main/java/dev/minios/pdaiv1/domain/entity/ThumbnailData.kt b/domain/src/main/java/dev/minios/pdaiv1/domain/entity/ThumbnailData.kt
@@ -0,0 +1,12 @@
+package dev.minios.pdaiv1.domain.entity
+
+/**
+ * Lightweight data class for thumbnail loading.
+ * Contains only necessary fields without heavy Base64 image data.
+ */
+data class ThumbnailData(
+    val id: Long,
+    val mediaPath: String,
+    val hidden: Boolean,
+    val blurHash: String,
+)
diff --git a/domain/src/main/java/dev/minios/pdaiv1/domain/feature/work/BackgroundWorkObserver.kt b/domain/src/main/java/dev/minios/pdaiv1/domain/feature/work/BackgroundWorkObserver.kt
@@ -8,10 +8,14 @@ import io.reactivex.rxjava3.core.Flowable
 interface BackgroundWorkObserver {
     fun observeStatus(): Flowable<BackgroundWorkStatus>
     fun observeResult(): Flowable<BackgroundWorkResult>
+    fun observeNewImage(): Flowable<Unit>
+    fun observeGalleryChanged(): Flowable<Unit>
     fun dismissResult()
     fun refreshStatus()
     fun postStatusMessage(title: String, subTitle: String)
     fun postSuccessSignal(result: List<AiGenerationResult>)
+    fun postNewImageSignal()
+    fun postGalleryChangedSignal()
     fun postCancelSignal()
     fun postFailedSignal(t: Throwable)
     fun hasActiveTasks(): Boolean
diff --git a/domain/src/main/java/dev/minios/pdaiv1/domain/gateway/MediaStoreGateway.kt b/domain/src/main/java/dev/minios/pdaiv1/domain/gateway/MediaStoreGateway.kt
@@ -1,8 +1,10 @@
 package dev.minios.pdaiv1.domain.gateway
 
 import dev.minios.pdaiv1.domain.entity.MediaStoreInfo
+import java.io.File
 
 interface MediaStoreGateway {
     fun exportToFile(fileName: String, content: ByteArray)
+    fun exportFromFile(fileName: String, sourceFile: File)
     fun getInfo(): MediaStoreInfo
 }
diff --git a/domain/src/main/java/dev/minios/pdaiv1/domain/repository/GenerationResultRepository.kt b/domain/src/main/java/dev/minios/pdaiv1/domain/repository/GenerationResultRepository.kt
@@ -2,6 +2,7 @@ package dev.minios.pdaiv1.domain.repository
 
 import dev.minios.pdaiv1.domain.entity.AiGenerationResult
 import dev.minios.pdaiv1.domain.entity.MediaStoreInfo
+import dev.minios.pdaiv1.domain.entity.ThumbnailData
 import io.reactivex.rxjava3.core.Completable
 import io.reactivex.rxjava3.core.Single
 
@@ -11,6 +12,10 @@ interface GenerationResultRepository {
 
     fun getAllIds(): Single<List<Long>>
 
+    fun getAllIdsWithBlurHash(): Single<List<Pair<Long, String>>>
+
+    fun getThumbnailInfoByIds(idList: List<Long>): Single<List<ThumbnailData>>
+
     fun getPage(limit: Int, offset: Int): Single<List<AiGenerationResult>>
 
     fun getMediaStoreInfo(): Single<MediaStoreInfo>
@@ -19,6 +24,12 @@ interface GenerationResultRepository {
 
     fun getByIds(idList: List<Long>): Single<List<AiGenerationResult>>
 
+    /**
+     * Returns raw data without loading full images from files.
+     * Use this for thumbnail loading where only mediaPath is needed.
+     */
+    fun getByIdsRaw(idList: List<Long>): Single<List<AiGenerationResult>>
+
     fun insert(result: AiGenerationResult): Single<Long>
 
     fun deleteById(id: Long): Completable
@@ -27,8 +38,16 @@ interface GenerationResultRepository {
 
     fun deleteAll(): Completable
 
+    fun deleteAllUnliked(): Completable
+
     fun toggleVisibility(id: Long): Single<Boolean>
 
+    fun toggleLike(id: Long): Single<Boolean>
+
+    fun likeByIds(idList: List<Long>): Completable
+
+    fun hideByIds(idList: List<Long>): Completable
+
     /**
      * Migrates existing gallery items from base64 storage to file-based storage.
      * This runs in the background at app startup.
diff --git a/domain/src/main/java/dev/minios/pdaiv1/domain/usecase/gallery/DeleteAllUnlikedUseCase.kt b/domain/src/main/java/dev/minios/pdaiv1/domain/usecase/gallery/DeleteAllUnlikedUseCase.kt
@@ -0,0 +1,7 @@
+package dev.minios.pdaiv1.domain.usecase.gallery
+
+import io.reactivex.rxjava3.core.Completable
+
+interface DeleteAllUnlikedUseCase {
+    operator fun invoke(): Completable
+}
diff --git a/domain/src/main/java/dev/minios/pdaiv1/domain/usecase/gallery/DeleteAllUnlikedUseCaseImpl.kt b/domain/src/main/java/dev/minios/pdaiv1/domain/usecase/gallery/DeleteAllUnlikedUseCaseImpl.kt
@@ -0,0 +1,10 @@
+package dev.minios.pdaiv1.domain.usecase.gallery
+
+import dev.minios.pdaiv1.domain.repository.GenerationResultRepository
+
+internal class DeleteAllUnlikedUseCaseImpl(
+    private val generationResultRepository: GenerationResultRepository,
+) : DeleteAllUnlikedUseCase {
+
+    override fun invoke() = generationResultRepository.deleteAllUnliked()
+}
diff --git a/domain/src/main/java/dev/minios/pdaiv1/domain/usecase/gallery/GetGalleryItemsRawUseCase.kt b/domain/src/main/java/dev/minios/pdaiv1/domain/usecase/gallery/GetGalleryItemsRawUseCase.kt
@@ -0,0 +1,12 @@
+package dev.minios.pdaiv1.domain.usecase.gallery
+
+import dev.minios.pdaiv1.domain.entity.AiGenerationResult
+import io.reactivex.rxjava3.core.Single
+
+/**
+ * Returns gallery items WITHOUT loading full images from files.
+ * Use this for thumbnail loading where only mediaPath is needed.
+ */
+interface GetGalleryItemsRawUseCase {
+    operator fun invoke(ids: List<Long>): Single<List<AiGenerationResult>>
+}
diff --git a/domain/src/main/java/dev/minios/pdaiv1/domain/usecase/gallery/GetGalleryItemsRawUseCaseImpl.kt b/domain/src/main/java/dev/minios/pdaiv1/domain/usecase/gallery/GetGalleryItemsRawUseCaseImpl.kt
@@ -0,0 +1,10 @@
+package dev.minios.pdaiv1.domain.usecase.gallery
+
+import dev.minios.pdaiv1.domain.repository.GenerationResultRepository
+
+internal class GetGalleryItemsRawUseCaseImpl(
+    private val generationResultRepository: GenerationResultRepository,
+) : GetGalleryItemsRawUseCase {
+
+    override fun invoke(ids: List<Long>) = generationResultRepository.getByIdsRaw(ids)
+}
diff --git a/domain/src/main/java/dev/minios/pdaiv1/domain/usecase/gallery/GetGalleryPagedIdsUseCase.kt b/domain/src/main/java/dev/minios/pdaiv1/domain/usecase/gallery/GetGalleryPagedIdsUseCase.kt
@@ -3,9 +3,10 @@ package dev.minios.pdaiv1.domain.usecase.gallery
 import io.reactivex.rxjava3.core.Single
 
 /**
- * Returns all gallery item IDs sorted by creation date (newest first).
- * This is a lightweight operation that only fetches IDs, not full items.
+ * Returns all gallery item IDs with BlurHash sorted by creation date (newest first).
+ * This is a lightweight operation that only fetches IDs and BlurHash strings.
  */
 interface GetGalleryPagedIdsUseCase {
     operator fun invoke(): Single<List<Long>>
+    fun withBlurHash(): Single<List<Pair<Long, String>>>
 }
diff --git a/domain/src/main/java/dev/minios/pdaiv1/domain/usecase/gallery/GetGalleryPagedIdsUseCaseImpl.kt b/domain/src/main/java/dev/minios/pdaiv1/domain/usecase/gallery/GetGalleryPagedIdsUseCaseImpl.kt
@@ -8,4 +8,6 @@ class GetGalleryPagedIdsUseCaseImpl(
 ) : GetGalleryPagedIdsUseCase {
 
     override fun invoke(): Single<List<Long>> = repository.getAllIds()
+
+    override fun withBlurHash(): Single<List<Pair<Long, String>>> = repository.getAllIdsWithBlurHash()
 }
diff --git a/domain/src/main/java/dev/minios/pdaiv1/domain/usecase/gallery/GetThumbnailInfoUseCase.kt b/domain/src/main/java/dev/minios/pdaiv1/domain/usecase/gallery/GetThumbnailInfoUseCase.kt
@@ -0,0 +1,8 @@
+package dev.minios.pdaiv1.domain.usecase.gallery
+
+import dev.minios.pdaiv1.domain.entity.ThumbnailData
+import io.reactivex.rxjava3.core.Single
+
+interface GetThumbnailInfoUseCase {
+    operator fun invoke(ids: List<Long>): Single<List<ThumbnailData>>
+}
diff --git a/domain/src/main/java/dev/minios/pdaiv1/domain/usecase/gallery/GetThumbnailInfoUseCaseImpl.kt b/domain/src/main/java/dev/minios/pdaiv1/domain/usecase/gallery/GetThumbnailInfoUseCaseImpl.kt
@@ -0,0 +1,10 @@
+package dev.minios.pdaiv1.domain.usecase.gallery
+
+import dev.minios.pdaiv1.domain.repository.GenerationResultRepository
+
+internal class GetThumbnailInfoUseCaseImpl(
+    private val generationResultRepository: GenerationResultRepository,
+) : GetThumbnailInfoUseCase {
+
+    override fun invoke(ids: List<Long>) = generationResultRepository.getThumbnailInfoByIds(ids)
+}
diff --git a/domain/src/main/java/dev/minios/pdaiv1/domain/usecase/gallery/HideItemsUseCase.kt b/domain/src/main/java/dev/minios/pdaiv1/domain/usecase/gallery/HideItemsUseCase.kt
@@ -0,0 +1,7 @@
+package dev.minios.pdaiv1.domain.usecase.gallery
+
+import io.reactivex.rxjava3.core.Completable
+
+interface HideItemsUseCase {
+    operator fun invoke(ids: List<Long>): Completable
+}
diff --git a/domain/src/main/java/dev/minios/pdaiv1/domain/usecase/gallery/HideItemsUseCaseImpl.kt b/domain/src/main/java/dev/minios/pdaiv1/domain/usecase/gallery/HideItemsUseCaseImpl.kt
@@ -0,0 +1,10 @@
+package dev.minios.pdaiv1.domain.usecase.gallery
+
+import dev.minios.pdaiv1.domain.repository.GenerationResultRepository
+
+internal class HideItemsUseCaseImpl(
+    private val generationResultRepository: GenerationResultRepository,
+) : HideItemsUseCase {
+
+    override fun invoke(ids: List<Long>) = generationResultRepository.hideByIds(ids)
+}
diff --git a/domain/src/main/java/dev/minios/pdaiv1/domain/usecase/gallery/LikeItemsUseCase.kt b/domain/src/main/java/dev/minios/pdaiv1/domain/usecase/gallery/LikeItemsUseCase.kt
@@ -0,0 +1,7 @@
+package dev.minios.pdaiv1.domain.usecase.gallery
+
+import io.reactivex.rxjava3.core.Completable
+
+interface LikeItemsUseCase {
+    operator fun invoke(ids: List<Long>): Completable
+}
diff --git a/domain/src/main/java/dev/minios/pdaiv1/domain/usecase/gallery/LikeItemsUseCaseImpl.kt b/domain/src/main/java/dev/minios/pdaiv1/domain/usecase/gallery/LikeItemsUseCaseImpl.kt
@@ -0,0 +1,10 @@
+package dev.minios.pdaiv1.domain.usecase.gallery
+
+import dev.minios.pdaiv1.domain.repository.GenerationResultRepository
+
+internal class LikeItemsUseCaseImpl(
+    private val generationResultRepository: GenerationResultRepository,
+) : LikeItemsUseCase {
+
+    override fun invoke(ids: List<Long>) = generationResultRepository.likeByIds(ids)
+}
diff --git a/domain/src/main/java/dev/minios/pdaiv1/domain/usecase/gallery/ToggleLikeUseCase.kt b/domain/src/main/java/dev/minios/pdaiv1/domain/usecase/gallery/ToggleLikeUseCase.kt
@@ -0,0 +1,7 @@
+package dev.minios.pdaiv1.domain.usecase.gallery
+
+import io.reactivex.rxjava3.core.Single
+
+interface ToggleLikeUseCase {
+    operator fun invoke(id: Long): Single<Boolean>
+}
diff --git a/domain/src/main/java/dev/minios/pdaiv1/domain/usecase/gallery/ToggleLikeUseCaseImpl.kt b/domain/src/main/java/dev/minios/pdaiv1/domain/usecase/gallery/ToggleLikeUseCaseImpl.kt
@@ -0,0 +1,10 @@
+package dev.minios.pdaiv1.domain.usecase.gallery
+
+import dev.minios.pdaiv1.domain.repository.GenerationResultRepository
+
+internal class ToggleLikeUseCaseImpl(
+    private val generationResultRepository: GenerationResultRepository,
+) : ToggleLikeUseCase {
+
+    override fun invoke(id: Long) = generationResultRepository.toggleLike(id)
+}

Original file line number	Diff line number	Diff line change
`@@ -1,8 +1,10 @@`
`1`	`1`	`package dev.minios.pdaiv1.domain.gateway`
`2`	`2`
`3`	`3`	`import dev.minios.pdaiv1.domain.entity.MediaStoreInfo`
	`4`	`+import java.io.File`
`4`	`5`
`5`	`6`	`interface MediaStoreGateway {`
`6`	`7`	`fun exportToFile(fileName: String, content: ByteArray)`
	`8`	`+ fun exportFromFile(fileName: String, sourceFile: File)`
`7`	`9`	`fun getInfo(): MediaStoreInfo`
`8`	`10`	`}`