Add validation on route CreateCommentArticle

src/main/kotlin/fr/dcproject/component/comment/article/routes/CreateCommentArticle.kt

@@ -1,6 +1,6 @@
 package fr.dcproject.component.comment.article.routes
 
-import fr.dcproject.common.response.toOutput
+import fr.dcproject.application.http.badRequestIfNotValid
 import fr.dcproject.common.security.assert
 import fr.dcproject.common.utils.receiveOrBadRequest
 import fr.dcproject.component.article.database.ArticleRef
@@ -12,6 +12,9 @@ import fr.dcproject.component.comment.article.routes.CreateCommentArticle.PostAr
 import fr.dcproject.component.comment.generic.CommentAccessControl
 import fr.dcproject.component.comment.generic.database.CommentForUpdate
 import fr.dcproject.component.comment.toOutput
+import io.konform.validation.Validation
+import io.konform.validation.jsonschema.maxLength
+import io.konform.validation.jsonschema.minLength
 import io.ktor.application.call
 import io.ktor.http.HttpStatusCode
 import io.ktor.locations.KtorExperimentalLocationsAPI
@@ -26,27 +29,36 @@ object CreateCommentArticle {
     @Location("/articles/{article}/comments")
     class PostArticleCommentRequest(article: UUID) {
         val article = ArticleRef(article)
-        class Input(val content: String)
+        class Input(val content: String) {
+            fun validate() = Validation<Input> {
+                Input::content {
+                    minLength(20)
+                    maxLength(6000)
+                }
+            }.validate(this)
+        }
     }
 
     fun Route.createCommentArticle(repo: CommentArticleRepository, ac: CommentAccessControl) {
         post<PostArticleCommentRequest> {
             mustBeAuth()
-            call.receiveOrBadRequest<Input>().run {
-                CommentForUpdate(
-                    target = it.article,
-                    createdBy = citizen,
-                    content = content
-                )
-            }.let { comment ->
-                ac.assert { canCreate(comment, citizenOrNull) }
-                repo.comment(comment)
+            call.receiveOrBadRequest<Input>()
+                .apply { validate().badRequestIfNotValid() }
+                .run {
+                    CommentForUpdate(
+                        target = it.article,
+                        createdBy = citizen,
+                        content = content
+                    )
+                }.let { comment ->
+                    ac.assert { canCreate(comment, citizenOrNull) }
+                    repo.comment(comment)
 
-                call.respond(
-                    HttpStatusCode.Created,
-                    comment.toOutput()
-                )
-            }
+                    call.respond(
+                        HttpStatusCode.Created,
+                        comment.toOutput()
+                    )
+                }
         }
     }
 }