feature #7: Add routes for comment article

src/main/kotlin/fr/dcproject/routes/Comment.kt

@@ -0,0 +1,45 @@
+package fr.dcproject.routes
+
+import fr.dcproject.security.voter.CommentVoter.Action.UPDATE
+import fr.dcproject.security.voter.CommentVoter.Action.VIEW
+import fr.dcproject.security.voter.assertCan
+import fr.postgresjson.entity.UuidEntity
+import io.ktor.application.call
+import io.ktor.http.HttpStatusCode
+import io.ktor.locations.KtorExperimentalLocationsAPI
+import io.ktor.locations.Location
+import io.ktor.locations.get
+import io.ktor.locations.put
+import io.ktor.request.receiveText
+import io.ktor.response.respond
+import io.ktor.routing.Route
+import java.util.*
+import fr.dcproject.entity.Comment as CommentEntity
+import fr.dcproject.repository.CommentGeneric as CommentRepository
+
+typealias CommentEntityGeneric = CommentEntity<UuidEntity>
+@KtorExperimentalLocationsAPI
+object CommentPaths {
+    // TODO: change UUID by entity converter
+    @Location("/comments/{comment}") class CommentRequest(val comment: UUID)
+}
+
+@KtorExperimentalLocationsAPI
+fun Route.comment(repo: CommentRepository) {
+    get<CommentPaths.CommentRequest> {
+        val comment = repo.findById(it.comment)!!
+        assertCan(VIEW, comment)
+
+        call.respond(HttpStatusCode.OK, comment)
+    }
+
+    put<CommentPaths.CommentRequest> {
+        val comment = repo.findById(it.comment)!!
+        assertCan(UPDATE,comment)
+
+        comment.content = call.receiveText()
+        repo.edit(comment as fr.dcproject.entity.Comment<UuidEntity>)
+
+        call.respond(HttpStatusCode.OK, comment)
+    }
+}