feat: 削除された投稿はレコードを完全に削除せず、返信などの情報を維持したまま削除されるように

src/main/kotlin/dev/usbharu/hideout/activitypub/service/activity/delete/APDeleteProcessor.kt

@@ -8,15 +8,15 @@ import dev.usbharu.hideout.activitypub.service.common.ActivityPubProcessContext
 import dev.usbharu.hideout.activitypub.service.common.ActivityType
 import dev.usbharu.hideout.application.external.Transaction
 import dev.usbharu.hideout.core.domain.exception.FailedToGetResourcesException
-import dev.usbharu.hideout.core.domain.model.post.PostRepository
 import dev.usbharu.hideout.core.query.PostQueryService
+import dev.usbharu.hideout.core.service.post.PostService
 import org.springframework.stereotype.Service
 
 @Service
 class APDeleteProcessor(
     transaction: Transaction,
     private val postQueryService: PostQueryService,
-    private val postRepository: PostRepository
+    private val postService: PostService
 ) :
     AbstractActivityPubProcessor<Delete>(transaction) {
     override suspend fun internalProcess(activity: ActivityPubProcessContext<Delete>) {
@@ -33,7 +33,7 @@ class APDeleteProcessor(
             return
         }
 
-        postRepository.delete(post.id)
+        postService.deleteRemote(post)
     }
 
     override fun isSupported(activityType: ActivityType): Boolean = activityType == ActivityType.Delete

src/main/kotlin/dev/usbharu/hideout/activitypub/service/activity/delete/APDeliverDeleteJobProcessor.kt

@@ -0,0 +1,23 @@
+package dev.usbharu.hideout.activitypub.service.activity.delete
+
+import dev.usbharu.hideout.activitypub.service.common.APRequestService
+import dev.usbharu.hideout.application.external.Transaction
+import dev.usbharu.hideout.core.external.job.DeliverDeleteJob
+import dev.usbharu.hideout.core.external.job.DeliverDeleteJobParam
+import dev.usbharu.hideout.core.query.ActorQueryService
+import dev.usbharu.hideout.core.service.job.JobProcessor
+import org.springframework.stereotype.Service
+
+@Service
+class APDeliverDeleteJobProcessor(
+    private val apRequestService: APRequestService,
+    private val actorQueryService: ActorQueryService,
+    private val transaction: Transaction,
+    private val deliverDeleteJob: DeliverDeleteJob
+) : JobProcessor<DeliverDeleteJobParam, DeliverDeleteJob> {
+    override suspend fun process(param: DeliverDeleteJobParam): Unit = transaction.transaction {
+        apRequestService.apPost(param.inbox, param.delete, actorQueryService.findById(param.signer))
+    }
+
+    override fun job(): DeliverDeleteJob = deliverDeleteJob
+}

src/main/kotlin/dev/usbharu/hideout/activitypub/service/activity/delete/APSendDeleteService.kt

@@ -0,0 +1,50 @@
+package dev.usbharu.hideout.activitypub.service.activity.delete
+
+import dev.usbharu.hideout.activitypub.domain.model.Delete
+import dev.usbharu.hideout.activitypub.domain.model.Tombstone
+import dev.usbharu.hideout.application.config.ApplicationConfig
+import dev.usbharu.hideout.core.domain.model.post.Post
+import dev.usbharu.hideout.core.external.job.DeliverDeleteJob
+import dev.usbharu.hideout.core.external.job.DeliverDeleteJobParam
+import dev.usbharu.hideout.core.query.ActorQueryService
+import dev.usbharu.hideout.core.query.FollowerQueryService
+import dev.usbharu.hideout.core.service.job.JobQueueParentService
+import org.springframework.stereotype.Service
+import java.time.Instant
+
+interface APSendDeleteService {
+    suspend fun sendDeleteNote(deletedPost: Post)
+}
+
+@Service
+class APSendDeleteServiceImpl(
+    private val jobQueueParentService: JobQueueParentService,
+    private val delverDeleteJob: DeliverDeleteJob,
+    private val followerQueryService: FollowerQueryService,
+    private val actorQueryService: ActorQueryService,
+    private val applicationConfig: ApplicationConfig
+) : APSendDeleteService {
+    override suspend fun sendDeleteNote(deletedPost: Post) {
+
+
+        val actor = actorQueryService.findById(deletedPost.actorId)
+        val followersById = followerQueryService.findFollowersById(deletedPost.actorId)
+
+        val delete = Delete(
+            actor = actor.url,
+            id = "${applicationConfig.url}/delete/note/${deletedPost.id}",
+            published = Instant.now().toString(),
+            `object` = Tombstone(id = deletedPost.apId)
+        )
+
+        followersById.forEach {
+            val jobProps = DeliverDeleteJobParam(
+                delete,
+                it.inbox,
+                actor.id
+            )
+            jobQueueParentService.scheduleTypeSafe(delverDeleteJob, jobProps)
+        }
+    }
+
+}

src/main/kotlin/dev/usbharu/hideout/core/domain/model/post/Post.kt

@@ -2,6 +2,7 @@ package dev.usbharu.hideout.core.domain.model.post
 
 import dev.usbharu.hideout.application.config.CharacterLimit
 import org.springframework.stereotype.Component
+import java.time.Instant
 
 data class Post private constructor(
     val id: Long,
@@ -15,7 +16,8 @@ data class Post private constructor(
     val replyId: Long? = null,
     val sensitive: Boolean = false,
     val apId: String = url,
-    val mediaIds: List<Long> = emptyList()
+    val mediaIds: List<Long> = emptyList(),
+    val delted: Boolean = false
 ) {
 
     @Component
@@ -71,8 +73,52 @@ data class Post private constructor(
                 replyId = replyId,
                 sensitive = sensitive,
                 apId = apId,
-                mediaIds = mediaIds
+                mediaIds = mediaIds,
+                delted = false
+            )
+        }
+
+        fun deleteOf(
+            id: Long,
+            visibility: Visibility,
+            url: String,
+            repostId: Long?,
+            replyId: Long?,
+            apId: String
+        ): Post {
+            return Post(
+                id = id,
+                actorId = 0,
+                overview = null,
+                text = "",
+                createdAt = Instant.EPOCH.toEpochMilli(),
+                visibility = visibility,
+                url = url,
+                repostId = repostId,
+                replyId = replyId,
+                sensitive = false,
+                apId = apId,
+                mediaIds = emptyList(),
+                delted = true
             )
         }
     }
+
+    fun delete(): Post {
+        return Post(
+            id = this.id,
+            actorId = 0,
+            overview = null,
+            text = "",
+            createdAt = Instant.EPOCH.toEpochMilli(),
+            visibility = visibility,
+            url = url,
+            repostId = repostId,
+            replyId = replyId,
+            sensitive = false,
+            apId = apId,
+            mediaIds = emptyList(),
+            delted = true
+        )
+    }
 }

src/main/kotlin/dev/usbharu/hideout/core/domain/model/reaction/ReactionRepository.kt

@@ -7,4 +7,6 @@ interface ReactionRepository {
     suspend fun generateId(): Long
     suspend fun save(reaction: Reaction): Reaction
     suspend fun delete(reaction: Reaction): Reaction
+    suspend fun deleteByPostId(postId: Long): Int
+    suspend fun deleteByActorId(actorId: Long): Int
 }

src/main/kotlin/dev/usbharu/hideout/core/external/job/DeliverDeleteJob.kt

@@ -0,0 +1,36 @@
+package dev.usbharu.hideout.core.external.job
+
+import com.fasterxml.jackson.databind.ObjectMapper
+import com.fasterxml.jackson.module.kotlin.readValue
+import dev.usbharu.hideout.activitypub.domain.model.Delete
+import kjob.core.dsl.ScheduleContext
+import kjob.core.job.JobProps
+import org.springframework.beans.factory.annotation.Qualifier
+import org.springframework.stereotype.Component
+
+data class DeliverDeleteJobParam(
+    val delete: Delete,
+    val inbox: String,
+    val signer: Long
+)
+
+@Component
+class DeliverDeleteJob(@Qualifier("activitypub") private val objectMapper: ObjectMapper) :
+    HideoutJob<DeliverDeleteJobParam, DeliverDeleteJob>("DeliverDeleteJob") {
+
+    val delete = string("delete")
+    val inbox = string("inbox")
+    val signer = long("signer")
+
+    override fun convert(value: DeliverDeleteJobParam): ScheduleContext<DeliverDeleteJob>.(DeliverDeleteJob) -> Unit = {
+        props[delete] = objectMapper.writeValueAsString(value.delete)
+        props[inbox] = value.inbox
+        props[signer] = value.signer
+    }
+
+    override fun convert(props: JobProps<DeliverDeleteJob>): DeliverDeleteJobParam = DeliverDeleteJobParam(
+        objectMapper.readValue(props[delete]),
+        props[inbox],
+        props[signer]
+    )
+}

src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposed/PostResultRowMapper.kt

@@ -10,6 +10,17 @@ import org.springframework.stereotype.Component
 @Component
 class PostResultRowMapper(private val postBuilder: Post.PostBuilder) : ResultRowMapper<Post> {
     override fun map(resultRow: ResultRow): Post {
+        if (resultRow[Posts.deleted]) {
+            return postBuilder.deleteOf(
+                resultRow[Posts.id],
+                Visibility.values().first { it.ordinal == resultRow[Posts.visibility] },
+                url = resultRow[Posts.url],
+                repostId = resultRow[Posts.repostId],
+                replyId = resultRow[Posts.replyId],
+                apId = resultRow[Posts.apId]
+            )
+        }
+
         return postBuilder.of(
             id = resultRow[Posts.id],
             actorId = resultRow[Posts.actorId],

src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/PostRepositoryImpl.kt

@@ -85,6 +85,7 @@ object Posts : Table() {
     val replyId: Column<Long?> = long("reply_id").references(id).nullable()
     val sensitive: Column<Boolean> = bool("sensitive").default(false)
     val apId: Column<String> = varchar("ap_id", 100).uniqueIndex()
+    val deleted = bool("deleted").default(false)
     override val primaryKey: PrimaryKey = PrimaryKey(id)
 }
 

src/main/kotlin/dev/usbharu/hideout/core/infrastructure/exposedrepository/ReactionRepositoryImpl.kt

@@ -42,6 +42,18 @@ class ReactionRepositoryImpl(
         }
         return reaction
     }
+
+    override suspend fun deleteByPostId(postId: Long): Int {
+        return Reactions.deleteWhere {
+            Reactions.postId eq postId
+        }
+    }
+
+    override suspend fun deleteByActorId(actorId: Long): Int {
+        return Reactions.deleteWhere {
+            Reactions.actorId eq actorId
+        }
+    }
 }
 
 fun ResultRow.toReaction(): Reaction {
@@ -55,8 +67,10 @@ fun ResultRow.toReaction(): Reaction {
 
 object Reactions : LongIdTable("reactions") {
     val emojiId: Column<Long> = long("emoji_id")
-    val postId: Column<Long> = long("post_id").references(Posts.id)
-    val actorId: Column<Long> = long("actor_id").references(Actors.id)
+    val postId: Column<Long> = long("post_id")
+        .references(Posts.id, onDelete = ReferenceOption.CASCADE, onUpdate = ReferenceOption.CASCADE)
+    val actorId: Column<Long> = long("actor_id")
+        .references(Actors.id, onDelete = ReferenceOption.CASCADE, onUpdate = ReferenceOption.CASCADE)
 
     init {
         uniqueIndex(emojiId, postId, actorId)

src/main/kotlin/dev/usbharu/hideout/core/service/post/PostService.kt

@@ -7,4 +7,6 @@ import org.springframework.stereotype.Service
 interface PostService {
     suspend fun createLocal(post: PostCreateDto): Post
     suspend fun createRemote(post: Post): Post
+    suspend fun deleteLocal(post: Post)
+    suspend fun deleteRemote(post: Post)
 }

src/main/kotlin/dev/usbharu/hideout/core/service/post/PostServiceImpl.kt

@@ -5,6 +5,7 @@ import dev.usbharu.hideout.core.domain.exception.UserNotFoundException
 import dev.usbharu.hideout.core.domain.model.actor.ActorRepository
 import dev.usbharu.hideout.core.domain.model.post.Post
 import dev.usbharu.hideout.core.domain.model.post.PostRepository
+import dev.usbharu.hideout.core.domain.model.reaction.ReactionRepository
 import dev.usbharu.hideout.core.query.PostQueryService
 import dev.usbharu.hideout.core.service.timeline.TimelineService
 import org.jetbrains.exposed.exceptions.ExposedSQLException
@@ -20,7 +21,8 @@ class PostServiceImpl(
     private val timelineService: TimelineService,
     private val postQueryService: PostQueryService,
     private val postBuilder: Post.PostBuilder,
-    private val apSendCreateService: ApSendCreateService
+    private val apSendCreateService: ApSendCreateService,
+    private val reactionRepository: ReactionRepository
 ) : PostService {
 
     override suspend fun createLocal(post: PostCreateDto): Post {
@@ -38,6 +40,16 @@ class PostServiceImpl(
         return createdPost
     }
 
+    override suspend fun deleteLocal(post: Post) {
+        reactionRepository.deleteByPostId(post.id)
+        postRepository.save(post.delete())
+    }
+
+    override suspend fun deleteRemote(post: Post) {
+        reactionRepository.deleteByPostId(post.id)
+        postRepository.save(post.delete())
+    }
+
     private suspend fun internalCreate(post: Post, isLocal: Boolean): Post {
         return try {
             if (postRepository.save(post)) {

src/main/resources/db/migration/V1__Init_DB.sql

@@ -76,7 +76,8 @@ create table if not exists posts
     repost_id   bigint                null,
     reply_id    bigint                null,
     "sensitive" boolean default false not null,
-    ap_id    varchar(100) not null unique
+    ap_id    varchar(100)          not null unique,
+    deleted  boolean default false not null
 );
 alter table posts
     add constraint fk_posts_actor_id__id foreign key (actor_id) references actors (id) on delete restrict on update restrict;
@@ -196,4 +197,8 @@ create table if not exists relationships
     constraint fk_relationships_actor_id__id foreign key (actor_id) references actors (id) on delete restrict on update restrict,
     constraint fk_relationships_target_actor_id__id foreign key (target_actor_id) references actors (id) on delete restrict on update restrict,
     unique (actor_id, target_actor_id)
-)
+);
+
+insert into actors (id, name, domain, screen_name, description, inbox, outbox, url, public_key, private_key, created_at,
+                    key_id, following, followers, instance, locked)
+values (0, 'ghost', '', '', '', '', '', '', '', null, 0, '', '', '', null, true);