feat: Postのドメイン知識を追加

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

@@ -1,6 +1,8 @@
 package dev.usbharu.hideout.domain.model.hideout.entity
 
-data class Post(
+import dev.usbharu.hideout.config.Config
+
+data class Post private constructor(
     val id: Long,
     val userId: Long,
     val overview: String? = null,
@@ -12,4 +14,60 @@ data class Post(
     val replyId: Long? = null,
     val sensitive: Boolean = false,
     val apId: String = url
-)
+) {
+    companion object {
+        fun of(
+            id: Long,
+            userId: Long,
+            overview: String? = null,
+            text: String,
+            createdAt: Long,
+            visibility: Visibility,
+            url: String,
+            repostId: Long? = null,
+            replyId: Long? = null,
+            sensitive: Boolean = false,
+            apId: String = url
+        ): Post {
+            val characterLimit = Config.configData.characterLimit
+
+            require(id >= 0) { "id must be greater than or equal to 0." }
+
+            require(userId >= 0) { "userId must be greater than or equal to 0." }
+
+            val limitedOverview = if ((overview?.length ?: 0) >= characterLimit.post.overview) {
+                overview?.substring(0, characterLimit.post.overview)
+            } else {
+                overview
+            }
+
+            val limitedText = if (text.length >= characterLimit.post.text) {
+                text.substring(0, characterLimit.post.text)
+            } else {
+                text
+            }
+
+            require(url.isNotBlank()) { "url must contain non-blank characters" }
+            require(url.length <= characterLimit.general.url) {
+                "url must not exceed ${characterLimit.general.url} characters."
+            }
+
+            require((repostId ?: 0) >= 0) { "repostId must be greater then or equal to 0." }
+            require((replyId ?: 0) >= 0) { "replyId must be greater then or equal to 0." }
+
+            return Post(
+                id = id,
+                userId = userId,
+                overview = limitedOverview,
+                text = limitedText,
+                createdAt = createdAt,
+                visibility = visibility,
+                url = url,
+                repostId = repostId,
+                replyId = replyId,
+                sensitive = sensitive,
+                apId = apId
+            )
+        }
+    }
+}

src/main/kotlin/dev/usbharu/hideout/repository/PostRepositoryImpl.kt

@@ -78,7 +78,7 @@ object Posts : Table() {
 }
 
 fun ResultRow.toPost(): Post {
-    return Post(
+    return Post.of(
         id = this[Posts.id],
         userId = this[Posts.userId],
         overview = this[Posts.overview],

src/main/kotlin/dev/usbharu/hideout/service/ap/APLikeService.kt

@@ -5,7 +5,6 @@ import dev.usbharu.hideout.domain.model.ActivityPubStringResponse
 import dev.usbharu.hideout.domain.model.ap.Like
 import dev.usbharu.hideout.exception.ap.IllegalActivityPubObjectException
 import dev.usbharu.hideout.query.PostQueryService
-import dev.usbharu.hideout.query.UserQueryService
 import dev.usbharu.hideout.service.core.Transaction
 import dev.usbharu.hideout.service.reaction.ReactionService
 import io.ktor.http.*
@@ -20,7 +19,6 @@ class APLikeServiceImpl(
     private val reactionService: ReactionService,
     private val apUserService: APUserService,
     private val apNoteService: APNoteService,
-    private val userQueryService: UserQueryService,
     private val postQueryService: PostQueryService,
     private val transaction: Transaction
 ) : APLikeService {
@@ -32,7 +30,6 @@ class APLikeServiceImpl(
             val person = apUserService.fetchPersonWithEntity(actor)
             apNoteService.fetchNote(like.`object`!!)
 
-
             val post = postQueryService.findByUrl(like.`object`!!)
 
             reactionService.receiveReaction(

src/main/kotlin/dev/usbharu/hideout/service/ap/APNoteService.kt

@@ -155,7 +155,7 @@ class APNoteServiceImpl(
         }
 
         postRepository.save(
-            Post(
+            Post.of(
                 id = postRepository.generateId(),
                 userId = person.second.id,
                 overview = null,

src/main/kotlin/dev/usbharu/hideout/service/ap/APReactionService.kt

@@ -11,7 +11,6 @@ import dev.usbharu.hideout.plugins.postAp
 import dev.usbharu.hideout.query.FollowerQueryService
 import dev.usbharu.hideout.query.PostQueryService
 import dev.usbharu.hideout.query.UserQueryService
-import dev.usbharu.hideout.repository.PostRepository
 import dev.usbharu.hideout.service.job.JobQueueParentService
 import io.ktor.client.*
 import kjob.core.job.JobProps
@@ -28,7 +27,6 @@ interface APReactionService {
 @Single
 class APReactionServiceImpl(
     private val jobQueueParentService: JobQueueParentService,
-    private val postRepository: PostRepository,
     private val httpClient: HttpClient,
     private val userQueryService: UserQueryService,
     private val followerQueryService: FollowerQueryService,

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

@@ -18,7 +18,7 @@ class PostServiceImpl(
     override suspend fun createLocal(post: PostCreateDto): Post {
         val user = userRepository.findById(post.userId) ?: throw UserNotFoundException("${post.userId} was not found")
         val id = postRepository.generateId()
-        val createPost = Post(
+        val createPost = Post.of(
             id = id,
             userId = post.userId,
             overview = post.overview,

src/test/kotlin/dev/usbharu/hideout/service/ap/APNoteServiceImplTest.kt

@@ -86,7 +86,7 @@ class APNoteServiceImplTest {
                 followerQueryService,
                 mock()
             )
-        val postEntity = Post(
+        val postEntity = Post.of(
             1L,
             1L,
             null,