Fix image handling

Fixes #703

app/src/main/kotlin/org/gameyfin/app/core/config/JpaConfiguration.kt

@@ -0,0 +1,18 @@
+package org.gameyfin.app.core.config
+
+import org.gameyfin.app.core.interceptors.EntityUpdateInterceptor
+import org.hibernate.cfg.AvailableSettings
+import org.springframework.boot.autoconfigure.orm.jpa.HibernatePropertiesCustomizer
+import org.springframework.context.annotation.Bean
+import org.springframework.context.annotation.Configuration
+
+@Configuration
+class JpaConfiguration {
+
+    @Bean
+    fun hibernatePropertiesCustomizer(entityUpdateInterceptor: EntityUpdateInterceptor): HibernatePropertiesCustomizer {
+        return HibernatePropertiesCustomizer { hibernateProperties ->
+            hibernateProperties[AvailableSettings.INTERCEPTOR] = entityUpdateInterceptor
+        }
+    }
+}

app/src/main/kotlin/org/gameyfin/app/core/events/Events.kt

@@ -22,8 +22,12 @@ class RegistrationAttemptWithExistingEmailEvent(source: Any, val existingUser: U
 class PasswordResetRequestEvent(source: Any, val token: Token<TokenType.PasswordReset>, val baseUrl: String) :
     ApplicationEvent(source)
 
-class AccountDeletedEvent(source: Any, val user: User, val baseUrl: String) : ApplicationEvent(source)
-
 class LibraryScanScheduleUpdatedEvent(source: Any) : ApplicationEvent(source)
 
-class GameCreatedEvent(source: Any, val game: Game) : ApplicationEvent(source)
+class UserDeletedEvent(source: Any, val user: User, val baseUrl: String) : ApplicationEvent(source)
+class UserUpdatedEvent(source: Any, val previousState: User, val currentState: User) : ApplicationEvent(source)
+
+class GameCreatedEvent(source: Any, val game: Game) : ApplicationEvent(source)
+class GameUpdatedEvent(source: Any, val previousState: Game, val currentState: Game) : ApplicationEvent(source)
+class GameDeletedEvent(source: Any, val game: Game) : ApplicationEvent(source)
+

app/src/main/kotlin/org/gameyfin/app/core/interceptors/EntityUpdateInterceptor.kt

@@ -0,0 +1,97 @@
+package org.gameyfin.app.core.interceptors
+
+import org.gameyfin.app.core.events.GameUpdatedEvent
+import org.gameyfin.app.core.events.UserUpdatedEvent
+import org.gameyfin.app.games.entities.Game
+import org.gameyfin.app.games.entities.Image
+import org.gameyfin.app.users.entities.User
+import org.gameyfin.app.util.EventPublisherHolder
+import org.hibernate.Interceptor
+import org.hibernate.type.Type
+import org.springframework.stereotype.Component
+
+@Component
+class EntityUpdateInterceptor() : Interceptor {
+
+    override fun onFlushDirty(
+        entity: Any?,
+        id: Any?,
+        currentState: Array<out Any?>?,
+        previousState: Array<out Any?>?,
+        propertyNames: Array<out String>?,
+        types: Array<out Type>?
+    ): Boolean {
+        if (entity == null || currentState == null || previousState == null || propertyNames == null) {
+            return false
+        }
+
+        when (entity) {
+            is Game -> {
+                val previousGame = reconstructGame(entity, previousState, propertyNames)
+                val currentGame = reconstructGame(entity, currentState, propertyNames)
+                EventPublisherHolder.publish(GameUpdatedEvent(this, previousGame, currentGame))
+            }
+
+            is User -> {
+                val previousUser = reconstructUser(entity, previousState, propertyNames)
+                val currentUser = reconstructUser(entity, currentState, propertyNames)
+                EventPublisherHolder.publish(UserUpdatedEvent(this, previousUser, currentUser))
+            }
+        }
+
+        return false
+    }
+
+    private fun reconstructGame(originalGame: Game, state: Array<out Any?>, propertyNames: Array<out String>): Game {
+        val reconstructed = Game(
+            library = originalGame.library,
+            metadata = originalGame.metadata
+        )
+
+        for (i in propertyNames.indices) {
+            when (propertyNames[i]) {
+                "id" -> reconstructed.id = state[i] as? Long
+                "createdAt" -> reconstructed.createdAt = state[i] as? java.time.Instant
+                "updatedAt" -> reconstructed.updatedAt = state[i] as? java.time.Instant
+                "title" -> reconstructed.title = state[i] as? String
+                "coverImage" -> reconstructed.coverImage = state[i] as? Image
+                "headerImage" -> reconstructed.headerImage = state[i] as? Image
+                "comment" -> reconstructed.comment = state[i] as? String
+                "summary" -> reconstructed.summary = state[i] as? String
+                "release" -> reconstructed.release = state[i] as? java.time.Instant
+                "userRating" -> reconstructed.userRating = state[i] as? Int
+                "criticRating" -> reconstructed.criticRating = state[i] as? Int
+                "images" -> {
+                    @Suppress("UNCHECKED_CAST")
+                    (state[i] as? MutableList<Image>)?.let { reconstructed.images = it }
+                }
+            }
+        }
+
+        return reconstructed
+    }
+
+    private fun reconstructUser(originalUser: User, state: Array<out Any?>, propertyNames: Array<out String>): User {
+        val reconstructed = User(
+            username = originalUser.username,
+            email = originalUser.email
+        )
+
+        for (i in propertyNames.indices) {
+            when (propertyNames[i]) {
+                "id" -> reconstructed.id = state[i] as? Long
+                "password" -> reconstructed.password = state[i] as? String
+                "oidcProviderId" -> reconstructed.oidcProviderId = state[i] as? String
+                "emailConfirmed" -> reconstructed.emailConfirmed = state[i] as? Boolean ?: false
+                "enabled" -> reconstructed.enabled = state[i] as? Boolean ?: false
+                "avatar" -> reconstructed.avatar = state[i] as? Image
+                "roles" -> {
+                    @Suppress("UNCHECKED_CAST")
+                    (state[i] as? List<org.gameyfin.app.core.Role>)?.let { reconstructed.roles = it }
+                }
+            }
+        }
+
+        return reconstructed
+    }
+}

app/src/main/kotlin/org/gameyfin/app/games/GameService.kt

@@ -33,7 +33,6 @@ import org.springframework.stereotype.Service
 import org.springframework.transaction.annotation.Transactional
 import reactor.core.publisher.Flux
 import reactor.core.publisher.Sinks
-import java.net.URI
 import java.nio.file.Path
 import java.time.ZoneId
 import java.time.ZoneOffset
@@ -105,10 +104,9 @@ class GameService(
         return entities.toDtos()
     }
 
-    @Transactional
+    private fun create(game: Game): Game {
-    fun create(game: Game): Game? {
+        game.publishers = game.publishers.map { companyService.createOrGet(it) }.toMutableList()
-        game.publishers = game.publishers.map { companyService.createOrGet(it) }
+        game.developers = game.developers.map { companyService.createOrGet(it) }.toMutableList()
-        game.developers = game.developers.map { companyService.createOrGet(it) }
 
         try {
             game.coverImage?.let {
@@ -125,7 +123,6 @@ class GameService(
         } catch (e: Exception) {
             log.error { "Error downloading images for game '${game.title}' (${game.id}): ${e.message}" }
             log.debug(e) {}
-            null
         }
 
         game.metadata.fileSize = filesystemService.calculateFileSize(game.metadata.path)
@@ -138,9 +135,11 @@ class GameService(
         val gamesToBePersisted = games.filter { it.id == null }
 
         gamesToBePersisted.forEach { game ->
-            game.publishers = game.publishers.map { companyService.createOrGet(it) }
+            game.publishers = game.publishers.map { companyService.createOrGet(it) }.toMutableList()
-            game.developers = game.developers.map { companyService.createOrGet(it) }
+            game.developers = game.developers.map { companyService.createOrGet(it) }.toMutableList()
-            game
+            game.coverImage?.let { game.coverImage = imageService.createOrGet(it) }
+            game.headerImage?.let { game.headerImage = imageService.createOrGet(it) }
+            game.images = game.images.map { imageService.createOrGet(it) }.toMutableList()
         }
 
         return gameRepository.saveAll(gamesToBePersisted)
@@ -166,14 +165,18 @@ class GameService(
             existingGame.metadata.fields["release"]?.source = GameFieldUserSource(user = user)
         }
         gameUpdateDto.coverUrl?.let {
-            val newCoverImage = Image(originalUrl = URI.create(it).toURL(), type = ImageType.COVER)
+            val newCoverImage = imageService.createOrGet(
+                Image(originalUrl = it, type = ImageType.COVER)
+            )
             imageService.downloadIfNew(newCoverImage)
 
             existingGame.coverImage = newCoverImage
             existingGame.metadata.fields["coverImage"]?.source = GameFieldUserSource(user = user)
         }
         gameUpdateDto.headerUrl?.let {
-            val newHeaderImage = Image(originalUrl = URI.create(it).toURL(), type = ImageType.HEADER)
+            val newHeaderImage = imageService.createOrGet(
+                Image(originalUrl = it, type = ImageType.HEADER)
+            )
             imageService.downloadIfNew(newHeaderImage)
 
             existingGame.headerImage = newHeaderImage
@@ -190,11 +193,13 @@ class GameService(
         gameUpdateDto.developers?.let {
             existingGame.developers =
                 it.map { name -> companyService.createOrGet(Company(name = name, type = CompanyType.DEVELOPER)) }
+                    .toMutableList()
             existingGame.metadata.fields["developers"]?.source = GameFieldUserSource(user = user)
         }
         gameUpdateDto.publishers?.let {
             existingGame.publishers =
                 it.map { name -> companyService.createOrGet(Company(name = name, type = CompanyType.PUBLISHER)) }
+                    .toMutableList()
             existingGame.metadata.fields["publishers"]?.source = GameFieldUserSource(user = user)
         }
         gameUpdateDto.genres?.let {
@@ -378,7 +383,7 @@ class GameService(
             "publishers",
             game.publishers,
             updatedGame.publishers,
-            { game.publishers = it ?: emptyList() },
+            { game.publishers = it ?: mutableListOf() },
             updatedGame.metadata.fields["publishers"]
         )
 
@@ -387,7 +392,7 @@ class GameService(
             "developers",
             game.developers,
             updatedGame.developers,
-            { game.developers = it ?: emptyList() },
+            { game.developers = it ?: mutableListOf() },
             updatedGame.metadata.fields["developers"]
         )
 
@@ -441,7 +446,7 @@ class GameService(
             "images",
             game.images,
             updatedGame.images,
-            { game.images = it ?: emptyList() },
+            { game.images = it ?: mutableListOf() },
             updatedGame.metadata.fields["images"]
         )
 
@@ -758,14 +763,18 @@ class GameService(
                 }
                 metadata.coverUrls?.firstOrNull()?.let { coverUrl ->
                     if (!metadataMap.containsKey("coverImage")) {
-                        mergedGame.coverImage = Image(originalUrl = coverUrl.toURL(), type = ImageType.COVER)
+                        mergedGame.coverImage = imageService.createOrGet(
+                            Image(originalUrl = coverUrl.toString(), type = ImageType.COVER)
+                        )
                         metadataMap["coverImage"] =
                             GameFieldMetadata(source = GameFieldPluginSource(plugin = sourcePlugin))
                     }
                 }
                 metadata.headerUrls?.firstOrNull()?.let { headerUrl ->
                     if (!metadataMap.containsKey("headerImage")) {
-                        mergedGame.headerImage = Image(originalUrl = headerUrl.toURL(), type = ImageType.HEADER)
+                        mergedGame.headerImage = imageService.createOrGet(
+                            Image(originalUrl = headerUrl.toString(), type = ImageType.HEADER)
+                        )
                         metadataMap["headerImage"] =
                             GameFieldMetadata(source = GameFieldPluginSource(plugin = sourcePlugin))
                     }
@@ -794,7 +803,7 @@ class GameService(
                 metadata.publishedBy?.takeIf { it.isNotEmpty() }?.let { publishedBy ->
                     if (!metadataMap.containsKey("publishers")) {
                         mergedGame.publishers =
-                            publishedBy.map { Company(name = it, type = CompanyType.PUBLISHER) }
+                            publishedBy.map { Company(name = it, type = CompanyType.PUBLISHER) }.toMutableList()
                         metadataMap["publishers"] =
                             GameFieldMetadata(source = GameFieldPluginSource(plugin = sourcePlugin))
                     }
@@ -802,7 +811,7 @@ class GameService(
                 metadata.developedBy?.takeIf { it.isNotEmpty() }?.let { developedBy ->
                     if (!metadataMap.containsKey("developers")) {
                         mergedGame.developers =
-                            developedBy.map { Company(name = it, type = CompanyType.DEVELOPER) }
+                            developedBy.map { Company(name = it, type = CompanyType.DEVELOPER) }.toMutableList()
                         metadataMap["developers"] =
                             GameFieldMetadata(source = GameFieldPluginSource(plugin = sourcePlugin))
                     }
@@ -843,7 +852,11 @@ class GameService(
                 metadata.screenshotUrls?.takeIf { it.isNotEmpty() }?.let { screenshotUrls ->
                     if (!metadataMap.containsKey("images")) {
                         mergedGame.images = runBlocking {
-                            screenshotUrls.map { Image(originalUrl = it.toURL(), type = ImageType.SCREENSHOT) }
+                            screenshotUrls.map {
+                                imageService.createOrGet(
+                                    Image(originalUrl = it.toString(), type = ImageType.SCREENSHOT)
+                                )
+                            }.toMutableList()
                         }
                         metadataMap["images"] = GameFieldMetadata(source = GameFieldPluginSource(plugin = sourcePlugin))
                     }

app/src/main/kotlin/org/gameyfin/app/games/entities/Game.kt

@@ -1,6 +1,7 @@
 package org.gameyfin.app.games.entities
 
 import jakarta.persistence.*
+import jakarta.persistence.CascadeType.*
 import org.gameyfin.app.libraries.entities.Library
 import org.gameyfin.pluginapi.gamemetadata.GameFeature
 import org.gameyfin.pluginapi.gamemetadata.Genre
@@ -28,15 +29,14 @@ class Game(
     var updatedAt: Instant? = null,
 
     @ManyToOne(fetch = FetchType.LAZY)
-    @JoinColumn(name = "library_id")
     val library: Library,
 
     var title: String? = null,
 
-    @OneToOne(cascade = [CascadeType.ALL], orphanRemoval = true)
+    @ManyToOne(cascade = [PERSIST, MERGE, REFRESH], fetch = FetchType.EAGER)
     var coverImage: Image? = null,
 
-    @OneToOne(cascade = [CascadeType.ALL], orphanRemoval = true)
+    @ManyToOne(cascade = [PERSIST, MERGE, REFRESH], fetch = FetchType.EAGER)
     var headerImage: Image? = null,
 
     @Lob
@@ -53,11 +53,11 @@ class Game(
 
     var criticRating: Int? = null,
 
-    @ManyToMany(cascade = [CascadeType.PERSIST, CascadeType.MERGE, CascadeType.REFRESH])
+    @ManyToMany(cascade = [PERSIST, MERGE, REFRESH], fetch = FetchType.EAGER)
-    var publishers: List<Company> = emptyList(),
+    var publishers: MutableList<Company> = mutableListOf(),
 
-    @ManyToMany(cascade = [CascadeType.PERSIST, CascadeType.MERGE, CascadeType.REFRESH])
+    @ManyToMany(cascade = [PERSIST, MERGE, REFRESH], fetch = FetchType.EAGER)
-    var developers: List<Company> = emptyList(),
+    var developers: MutableList<Company> = mutableListOf(),
 
     @ElementCollection(targetClass = Genre::class)
     var genres: List<Genre> = emptyList(),
@@ -74,16 +74,14 @@ class Game(
     @ElementCollection(targetClass = PlayerPerspective::class)
     var perspectives: List<PlayerPerspective> = emptyList(),
 
-    @OneToMany(cascade = [CascadeType.ALL], orphanRemoval = true)
+    @ManyToMany(cascade = [PERSIST, MERGE, REFRESH], fetch = FetchType.EAGER)
-    var images: List<Image> = emptyList(),
+    var images: MutableList<Image> = mutableListOf(),
 
     @ElementCollection
     var videoUrls: List<URI> = emptyList(),
 
     @Embedded
     var metadata: GameMetadata
-
-
 ) {
     constructor(path: Path, library: Library) : this(library = library, metadata = GameMetadata(path = path.toString()))
 }

app/src/main/kotlin/org/gameyfin/app/games/entities/GameEntityListener.kt

@@ -4,6 +4,7 @@ import jakarta.persistence.PostPersist
 import jakarta.persistence.PostRemove
 import jakarta.persistence.PostUpdate
 import org.gameyfin.app.core.events.GameCreatedEvent
+import org.gameyfin.app.core.events.GameDeletedEvent
 import org.gameyfin.app.games.GameService
 import org.gameyfin.app.games.dto.GameAdminEvent
 import org.gameyfin.app.games.dto.GameUserEvent
@@ -24,11 +25,13 @@ class GameEntityListener {
     fun updated(game: Game) {
         GameService.emitUser(GameUserEvent.Updated(game.toUserDto()))
         GameService.emitAdmin(GameAdminEvent.Updated(game.toAdminDto()))
+        // GameUpdateEvent triggered via {@link org.gameyfin.app.core.interceptors.EntityUpdateInterceptor#onFlushDirty}
     }
 
     @PostRemove
     fun deleted(game: Game) {
         GameService.emitUser(GameUserEvent.Deleted(game.id!!))
         GameService.emitAdmin(GameAdminEvent.Deleted(game.id!!))
+        EventPublisherHolder.publish(GameDeletedEvent(this, game))
     }
 }

app/src/main/kotlin/org/gameyfin/app/games/entities/Image.kt

@@ -1,19 +1,20 @@
 package org.gameyfin.app.games.entities
 
-import jakarta.persistence.*
+import jakarta.persistence.Entity
+import jakarta.persistence.GeneratedValue
+import jakarta.persistence.GenerationType
+import jakarta.persistence.Id
 import org.springframework.content.commons.annotations.ContentId
 import org.springframework.content.commons.annotations.ContentLength
 import org.springframework.content.commons.annotations.MimeType
-import java.net.URL
 
 @Entity
-@EntityListeners(ImageEntityListener::class)
 class Image(
     @Id
     @GeneratedValue(strategy = GenerationType.AUTO)
     var id: Long? = null,
 
-    val originalUrl: URL? = null,
+    val originalUrl: String? = null,
 
     val type: ImageType,
 
@@ -25,19 +26,7 @@ class Image(
 
     @MimeType
     var mimeType: String? = null
-) {
+)
-    override fun equals(other: Any?): Boolean {
-        if (this === other) return true
-        if (other !is Image) return false
-        return originalUrl.toString() == other.originalUrl.toString()
-    }
-
-    override fun hashCode(): Int {
-        var result = id?.hashCode() ?: 0
-        result = 31 * result + originalUrl?.toString().hashCode()
-        return result
-    }
-}
 
 enum class ImageType {
     COVER,

app/src/main/kotlin/org/gameyfin/app/games/entities/ImageEntityListener.kt

@@ -1,27 +0,0 @@
-package org.gameyfin.app.games.entities
-
-import jakarta.persistence.PostRemove
-import org.gameyfin.app.media.ImageService
-import org.springframework.context.ApplicationContext
-import org.springframework.context.ApplicationContextAware
-import org.springframework.stereotype.Component
-
-@Component
-class ImageEntityListener : ApplicationContextAware {
-    companion object {
-        private lateinit var applicationContext: ApplicationContext
-    }
-
-    override fun setApplicationContext(context: ApplicationContext) {
-        applicationContext = context
-    }
-
-    private fun getImageService(): ImageService {
-        return applicationContext.getBean(ImageService::class.java)
-    }
-
-    @PostRemove
-    fun deleted(image: Image) {
-        getImageService().deleteFile(image)
-    }
-}

app/src/main/kotlin/org/gameyfin/app/games/repositories/GameRepository.kt

@@ -12,4 +12,7 @@ interface GameRepository : JpaRepository<Game, Long> {
         @Param("title") title: String,
         @Param("release") release: Instant?
     ): List<Game>
+
+    @Query("SELECT CASE WHEN COUNT(g) > 0 THEN true ELSE false END FROM Game g WHERE g.coverImage.id = :imageId OR g.headerImage.id = :imageId OR :imageId IN (SELECT i.id FROM g.images i)")
+    fun existsByImage(@Param("imageId") imageId: Long): Boolean
 }

app/src/main/kotlin/org/gameyfin/app/games/repositories/ImageRepository.kt

@@ -2,8 +2,7 @@ package org.gameyfin.app.games.repositories
 
 import org.gameyfin.app.games.entities.Image
 import org.springframework.data.jpa.repository.JpaRepository
-import java.net.URL
 
 interface ImageRepository : JpaRepository<Image, Long> {
-    fun findByOriginalUrl(originalUrl: URL): Image?
+    fun findByOriginalUrl(originalUrl: String): Image?
 }

app/src/main/kotlin/org/gameyfin/app/libraries/LibraryScanService.kt

@@ -13,7 +13,6 @@ import org.gameyfin.app.media.ImageService
 import org.springframework.stereotype.Service
 import reactor.core.publisher.Flux
 import reactor.core.publisher.Sinks
-import java.net.URL
 import java.nio.file.Path
 import java.time.Instant
 import java.util.concurrent.Callable
@@ -344,19 +343,13 @@ class LibraryScanService(
         // Deduplicate by originalUrl
         val uniqueImages = allImages
             .filter { it.originalUrl != null }
-            .distinctBy { it.originalUrl }
+            .distinctBy { it.originalUrl.toString() }
-
-        // Map to track which Image entity was used for download per originalUrl
-        val downloadedImageMap = ConcurrentHashMap<URL, Image>()
 
         // Download each unique image in parallel
         val imageDownloadTasks = uniqueImages.map { image ->
             Callable {
                 try {
                     imageService.downloadIfNew(image)
-                    image.originalUrl?.let { url ->
-                        downloadedImageMap[url] = image
-                    }
                 } catch (e: Exception) {
                     log.error { "Error downloading image '${image.originalUrl}': ${e.message}" }
                     log.debug(e) {}
@@ -368,18 +361,20 @@ class LibraryScanService(
         }
         executor.invokeAll(imageDownloadTasks)
 
-        // After downloads, associate the contentId with all other Image entities in the batch with the same originalUrl
+        // For remaining duplicate images, just copy the content metadata from the downloaded unique image
-        for ((url, downloadedImage) in downloadedImageMap) {
+        val uniqueImagesByUrl = uniqueImages.associateBy { it.originalUrl.toString() }
-            val contentId = downloadedImage.contentId
+
-            if (contentId != null) {
+        allImages.filter { it.originalUrl != null && it !in uniqueImages }
-                allImages.filter { it.originalUrl.toString() == url.toString() && it !== downloadedImage }
+            .forEach { duplicateImage ->
-                    .forEach { image ->
+                val downloadedImage = uniqueImagesByUrl[duplicateImage.originalUrl.toString()]
-                        imageService.downloadIfNew(image)
+                if (downloadedImage != null && downloadedImage.contentId != null) {
-                        progress.currentStep.current = completedImageDownload.incrementAndGet()
+                    duplicateImage.contentId = downloadedImage.contentId
-                        emit(progress)
+                    duplicateImage.contentLength = downloadedImage.contentLength
-                    }
+                    duplicateImage.mimeType = downloadedImage.mimeType
+                }
+                progress.currentStep.current = completedImageDownload.incrementAndGet()
+                emit(progress)
             }
-        }
 
         return DownloadImagesResult(gamesWithImages = games)
     }

app/src/main/kotlin/org/gameyfin/app/media/ImageEndpoint.kt

@@ -47,7 +47,7 @@ class ImageEndpoint(
     @GetMapping("/plugins/{id}/logo")
     fun getPluginLogo(@PathVariable("id") pluginId: String): ResponseEntity<ByteArrayResource>? {
         val logo = pluginService.getLogo(pluginId)
-        return Utils.Companion.inputStreamToResponseEntity(logo)
+        return Utils.inputStreamToResponseEntity(logo)
     }
 
     @GetMapping("/avatar")
@@ -63,7 +63,7 @@ class ImageEndpoint(
         val auth = getCurrentAuth() ?: throw IllegalStateException("No authentication found")
 
         val image: Image = if (!userService.hasAvatar(auth.name)) {
-            imageService.createFile(ImageType.AVATAR, file.inputStream, file.contentType!!)
+            imageService.createFromInputStream(ImageType.AVATAR, file.inputStream, file.contentType!!)
         } else {
             val existingAvatar = userService.getAvatar(auth.name)!!
             imageService.updateFileContent(existingAvatar, file.inputStream, file.contentType!!)
@@ -85,7 +85,7 @@ class ImageEndpoint(
         userService.deleteAvatar(name)
     }
 
-    private fun getImageContent(id: Long): ResponseEntity<InputStreamResource>? {
+    private fun getImageContent(id: Long): ResponseEntity<InputStreamResource> {
         val image = imageService.getImage(id) ?: return ResponseEntity.notFound().build()
 
         val file = image.let { imageService.getFileContent(it) }

app/src/main/kotlin/org/gameyfin/app/media/ImageService.kt

@@ -2,40 +2,119 @@ package org.gameyfin.app.media
 
 import org.apache.tika.Tika
 import org.apache.tika.io.TikaInputStream
+import org.gameyfin.app.core.events.GameDeletedEvent
+import org.gameyfin.app.core.events.GameUpdatedEvent
+import org.gameyfin.app.core.events.UserDeletedEvent
+import org.gameyfin.app.core.events.UserUpdatedEvent
 import org.gameyfin.app.games.entities.Image
 import org.gameyfin.app.games.entities.ImageType
+import org.gameyfin.app.games.repositories.GameRepository
 import org.gameyfin.app.games.repositories.ImageContentStore
 import org.gameyfin.app.games.repositories.ImageRepository
+import org.gameyfin.app.users.persistence.UserRepository
 import org.springframework.data.repository.findByIdOrNull
 import org.springframework.stereotype.Service
+import org.springframework.transaction.event.TransactionPhase
+import org.springframework.transaction.event.TransactionalEventListener
 import java.io.InputStream
+import java.net.URI
 
 @Service
 class ImageService(
     private val imageRepository: ImageRepository,
-    private val imageContentStore: ImageContentStore
+    private val imageContentStore: ImageContentStore,
+    private val gameRepository: GameRepository,
+    private val userRepository: UserRepository
 ) {
     companion object {
-        private val tika = Tika();
+        private val tika = Tika()
+    }
+
+    @TransactionalEventListener(
+        classes = [GameDeletedEvent::class],
+        phase = TransactionPhase.AFTER_COMPLETION
+    )
+    fun onGameDeleted(event: GameDeletedEvent) {
+        val imagesToDelete = listOfNotNull(event.game.coverImage, event.game.headerImage)
+            .toMutableList()
+            .apply { addAll(event.game.images) }
+
+        imagesToDelete.forEach { deleteImageIfUnused(it) }
+    }
+
+    @TransactionalEventListener(
+        classes = [GameUpdatedEvent::class],
+        phase = TransactionPhase.AFTER_COMPLETION
+    )
+    fun onGameUpdated(event: GameUpdatedEvent) {
+        val imagesBeforeUpdate = listOfNotNull(event.previousState.coverImage, event.previousState.headerImage)
+            .toMutableList()
+            .apply { addAll(event.previousState.images) }
+            .toSet()
+
+        val imagesStillInUse = listOfNotNull(event.currentState.coverImage, event.currentState.headerImage)
+            .toMutableList()
+            .apply { addAll(event.currentState.images) }
+            .toSet()
+
+        imagesBeforeUpdate.minus(imagesStillInUse).forEach { deleteImageIfUnused(it) }
+    }
+
+    @TransactionalEventListener(
+        classes = [UserDeletedEvent::class],
+        phase = TransactionPhase.AFTER_COMPLETION
+    )
+    fun onAccountDeleted(event: UserDeletedEvent) {
+        event.user.avatar?.let { deleteImageIfUnused(it) }
+    }
+
+    @TransactionalEventListener(
+        classes = [UserUpdatedEvent::class],
+        phase = TransactionPhase.AFTER_COMPLETION
+    )
+    fun onUserUpdated(event: UserUpdatedEvent) {
+        event.previousState.avatar?.let { previousAvatar ->
+            if (previousAvatar != event.currentState.avatar) {
+                deleteImageIfUnused(previousAvatar)
+            }
+        }
+    }
+
+    fun createOrGet(image: Image): Image {
+        if (image.originalUrl != null) {
+            imageRepository.findByOriginalUrl(image.originalUrl)?.let { return it }
+        }
+
+        return imageRepository.save(image)
     }
 
     fun downloadIfNew(image: Image) {
         if (image.originalUrl == null) throw IllegalArgumentException("Image must have an original URL")
 
+        // Always try to get existing image first to avoid detached entity issues
         val existingImage = imageRepository.findByOriginalUrl(image.originalUrl)
 
         if (existingImage != null && existingImage.contentId != null) {
+            // If we have an existing image with content, associate it with the current image
             imageContentStore.associate(image, existingImage.contentId)
+            // Update the current image's content metadata
+            image.contentId = existingImage.contentId
+            image.contentLength = existingImage.contentLength
+            image.mimeType = existingImage.mimeType
             return
         }
 
-        TikaInputStream.get { image.originalUrl.openStream() }.use { input ->
+        // If no existing image or existing image has no content, download it
+        TikaInputStream.get { URI.create(image.originalUrl).toURL().openStream() }.use { input ->
             image.mimeType = tika.detect(input)
             imageContentStore.setContent(image, input)
         }
+
+        // Save the image to ensure it's persisted
+        imageRepository.save(image)
     }
 
-    fun createFile(type: ImageType, content: InputStream, mimeType: String): Image {
+    fun createFromInputStream(type: ImageType, content: InputStream, mimeType: String): Image {
         val image = Image(type = type, mimeType = mimeType)
         imageRepository.save(image)
         return imageContentStore.setContent(image, content)
@@ -45,19 +124,20 @@ class ImageService(
         return imageRepository.findByIdOrNull(id)
     }
 
-    fun getFileContent(id: Long): InputStream? {
-        val image = getImage(id) ?: return null
-        return getFileContent(image)
-    }
-
     fun getFileContent(image: Image): InputStream? {
         return imageContentStore.getContent(image)
 
     }
 
-    fun deleteFile(image: Image) {
+    fun deleteImageIfUnused(image: Image) {
-        imageContentStore.unsetContent(image)
+        val imageId = image.id ?: return
-        imageRepository.delete(image)
+
+        val isImageStillInUse = gameRepository.existsByImage(imageId) || userRepository.existsByAvatar(imageId)
+
+        if (!isImageStillInUse) {
+            imageContentStore.unsetContent(image)
+            imageRepository.delete(image)
+        }
     }
 
     fun updateFileContent(image: Image, content: InputStream, mimeType: String? = null): Image {

app/src/main/kotlin/org/gameyfin/app/messages/MessageService.kt

@@ -206,8 +206,8 @@ class MessageService(
     }
 
     @Async
-    @EventListener(AccountDeletedEvent::class)
+    @EventListener(UserDeletedEvent::class)
-    fun onAccountDeletion(event: AccountDeletedEvent) {
+    fun onAccountDeletion(event: UserDeletedEvent) {
 
         if (!enabled) {
             log.error { "No message provider available, can't send account deletion message" }

app/src/main/kotlin/org/gameyfin/app/users/UserService.kt

@@ -5,7 +5,10 @@ import org.gameyfin.app.config.ConfigProperties
 import org.gameyfin.app.config.ConfigService
 import org.gameyfin.app.core.Role
 import org.gameyfin.app.core.Utils
-import org.gameyfin.app.core.events.*
+import org.gameyfin.app.core.events.AccountStatusChangedEvent
+import org.gameyfin.app.core.events.EmailNeedsConfirmationEvent
+import org.gameyfin.app.core.events.RegistrationAttemptWithExistingEmailEvent
+import org.gameyfin.app.core.events.UserRegistrationWaitingForApprovalEvent
 import org.gameyfin.app.core.security.getCurrentAuth
 import org.gameyfin.app.games.entities.Image
 import org.gameyfin.app.media.ImageService
@@ -126,7 +129,7 @@ class UserService(
         val user = getByUsernameNonNull(username)
 
         if (user.avatar == null) return
-        imageService.deleteFile(user.avatar!!)
+        imageService.deleteImageIfUnused(user.avatar!!)
         user.avatar = null
 
         userRepository.save(user)
@@ -284,6 +287,5 @@ class UserService(
     fun deleteUser(username: String) {
         val user = getByUsernameNonNull(username)
         userRepository.delete(user)
-        eventPublisher.publishEvent(AccountDeletedEvent(this, user, Utils.getBaseUrl()))
     }
 }

app/src/main/kotlin/org/gameyfin/app/users/entities/UserEntityListener.kt

@@ -1,9 +1,13 @@
 package org.gameyfin.app.users.entities
 
 import jakarta.persistence.EntityManager
+import jakarta.persistence.PostRemove
 import jakarta.persistence.PreRemove
+import org.gameyfin.app.core.Utils
+import org.gameyfin.app.core.events.UserDeletedEvent
 import org.gameyfin.app.requests.entities.GameRequest
 import org.gameyfin.app.util.EntityManagerHolder
+import org.gameyfin.app.util.EventPublisherHolder
 
 class UserEntityListener {
 
@@ -22,4 +26,11 @@ class UserEntityListener {
             entityManager.merge(gr)
         }
     }
+
+    // UserUpdateEvent triggered via {@link org.gameyfin.app.core.interceptors.EntityUpdateInterceptor#onFlushDirty}
+
+    @PostRemove
+    fun postRemove(user: User) {
+        EventPublisherHolder.publish(UserDeletedEvent(this, user, Utils.getBaseUrl()))
+    }
 }

app/src/main/kotlin/org/gameyfin/app/users/persistence/UserRepository.kt

@@ -3,6 +3,8 @@ package org.gameyfin.app.users.persistence
 import org.gameyfin.app.core.Role
 import org.gameyfin.app.users.entities.User
 import org.springframework.data.jpa.repository.JpaRepository
+import org.springframework.data.jpa.repository.Query
+import org.springframework.data.repository.query.Param
 
 interface UserRepository : JpaRepository<User, Long> {
     fun existsByUsername(userName: String): Boolean
@@ -11,4 +13,7 @@ interface UserRepository : JpaRepository<User, Long> {
     fun findByEmail(email: String): User?
     fun findByOidcProviderId(oidcProviderId: String): User?
     fun countUserByRolesContains(role: Role): Int
+
+    @Query("SELECT CASE WHEN COUNT(u) > 0 THEN true ELSE false END FROM User u WHERE u.avatar.id = :imageId")
+    fun existsByAvatar(@Param("imageId") imageId: Long): Boolean
 }