1 files changed, 79 insertions, 2 deletions

diff --git a/server/helpers/custom-validators/video-comments.ts b/server/helpers/custom-validators/video-comments.ts
index 846f28b17..a01680cbe 100644
--- a/server/helpers/custom-validators/video-comments.ts
+++ b/server/helpers/custom-validators/video-comments.ts
@@ -1,6 +1,8 @@
-import 'multer'
+import * as express from 'express'
 import validator from 'validator'
+import { VideoCommentModel } from '@server/models/video/video-comment'
 import { CONSTRAINTS_FIELDS } from '../../initializers/constants'
+import { MVideoId } from '@server/types/models'
 
 const VIDEO_COMMENTS_CONSTRAINTS_FIELDS = CONSTRAINTS_FIELDS.VIDEO_COMMENTS
 
@@ -8,8 +10,83 @@ function isValidVideoCommentText (value: string) {
   return value === null || validator.isLength(value, VIDEO_COMMENTS_CONSTRAINTS_FIELDS.TEXT)
 }
 
+async function doesVideoCommentThreadExist (idArg: number | string, video: MVideoId, res: express.Response) {
+  const id = parseInt(idArg + '', 10)
+  const videoComment = await VideoCommentModel.loadById(id)
+
+  if (!videoComment) {
+    res.status(404)
+      .json({ error: 'Video comment thread not found' })
+      .end()
+
+    return false
+  }
+
+  if (videoComment.videoId !== video.id) {
+    res.status(400)
+      .json({ error: 'Video comment is not associated to this video.' })
+      .end()
+
+    return false
+  }
+
+  if (videoComment.inReplyToCommentId !== null) {
+    res.status(400)
+      .json({ error: 'Video comment is not a thread.' })
+      .end()
+
+    return false
+  }
+
+  res.locals.videoCommentThread = videoComment
+  return true
+}
+
+async function doesVideoCommentExist (idArg: number | string, video: MVideoId, res: express.Response) {
+  const id = parseInt(idArg + '', 10)
+  const videoComment = await VideoCommentModel.loadByIdAndPopulateVideoAndAccountAndReply(id)
+
+  if (!videoComment) {
+    res.status(404)
+      .json({ error: 'Video comment thread not found' })
+      .end()
+
+    return false
+  }
+
+  if (videoComment.videoId !== video.id) {
+    res.status(400)
+      .json({ error: 'Video comment is not associated to this video.' })
+      .end()
+
+    return false
+  }
+
+  res.locals.videoCommentFull = videoComment
+  return true
+}
+
+async function doesCommentIdExist (idArg: number | string, res: express.Response) {
+  const id = parseInt(idArg + '', 10)
+  const videoComment = await VideoCommentModel.loadById(id)
+
+  if (!videoComment) {
+    res.status(404)
+      .json({ error: 'Video comment thread not found' })
+
+    return false
+  }
+
+  res.locals.videoComment = videoComment
+
+  return true
+}
+
 // ---------------------------------------------------------------------------
 
 export {
-  isValidVideoCommentText
+  isValidVideoCommentText,
+  doesVideoCommentThreadExist,
+  doesVideoCommentExist,
+  doesCommentIdExist
 }