댓글 시스템 복구

backend/src/routes/tierlists.js

@@ -16,6 +16,11 @@ const {
   favoriteTierList,
   unfavoriteTierList,
   duplicateTierListForUser,
+  listTierListComments,
+  findTierListCommentById,
+  createTierListComment,
+  deleteTierListComment,
+  createCommentNotificationsForComment,
 } = require('../db')
 const { requireAuth } = require('../middleware/auth')
 const { createMemoryUpload, writeOptimizedImage } = require('../lib/image-storage')
@@ -122,6 +127,22 @@ const tierListUpsertSchema = z.object({
   }
 })
 
+const tierListCommentSchema = z.object({
+  content: z.string().trim().min(1).max(2000),
+  parentCommentId: z.string().trim().max(64).optional().default(''),
+})
+
+async function getTierListAccessContext(req, tierListId) {
+  const tierList = await findTierListById(tierListId, req.session?.userId || '')
+  if (!tierList) return { error: 'not_found' }
+  if (tierList.isPublic) return { tierList, canRead: true, canEdit: req.session?.userId === tierList.authorId }
+  if (!req.session?.userId) return { error: 'forbidden' }
+  if (req.session.userId === tierList.authorId) return { tierList, canRead: true, canEdit: true }
+  const currentUser = await findUserById(req.session.userId)
+  if (!currentUser?.isAdmin) return { error: 'forbidden' }
+  return { tierList, canRead: true, canEdit: true, isAdmin: true }
+}
+
 router.get('/public', async (req, res) => {
   const topicId = typeof req.query.topicId === 'string' ? req.query.topicId : ''
   const queryText = typeof req.query.q === 'string' ? req.query.q : ''
@@ -142,14 +163,10 @@ router.get('/favorites/me', requireAuth, async (req, res) => {
 })
 
 router.get('/:id', async (req, res) => {
-  const t = await findTierListById(req.params.id, req.session?.userId || '')
-  if (!t) return res.status(404).json({ error: 'not_found' })
-  if (!t.isPublic) {
-    if (!req.session?.userId) return res.status(403).json({ error: 'forbidden' })
-    const currentUser = req.session.userId === t.authorId ? { isAdmin: false } : await findUserById(req.session.userId)
-    if (req.session.userId !== t.authorId && !currentUser?.isAdmin) return res.status(403).json({ error: 'forbidden' })
-  }
-  res.json({ tierList: normalizeTierList(t) })
+  const access = await getTierListAccessContext(req, req.params.id)
+  if (access.error === 'not_found') return res.status(404).json({ error: 'not_found' })
+  if (access.error === 'forbidden') return res.status(403).json({ error: 'forbidden' })
+  res.json({ tierList: normalizeTierList(access.tierList) })
 })
 
 router.post('/:id/duplicate', requireAuth, async (req, res) => {
@@ -189,6 +206,62 @@ router.delete('/:id/favorite', requireAuth, async (req, res) => {
   res.json({ tierList: normalizeTierList(updated) })
 })
 
+router.get('/:id/comments', async (req, res) => {
+  const access = await getTierListAccessContext(req, req.params.id)
+  if (access.error === 'not_found') return res.status(404).json({ error: 'not_found' })
+  if (access.error === 'forbidden') return res.status(403).json({ error: 'forbidden' })
+
+  const comments = await listTierListComments(access.tierList.id)
+  res.json({ comments })
+})
+
+router.post('/:id/comments', requireAuth, async (req, res) => {
+  const parsed = tierListCommentSchema.safeParse(req.body)
+  if (!parsed.success) return res.status(400).json({ error: 'bad_request' })
+
+  const access = await getTierListAccessContext(req, req.params.id)
+  if (access.error === 'not_found') return res.status(404).json({ error: 'not_found' })
+  if (access.error === 'forbidden') return res.status(403).json({ error: 'forbidden' })
+
+  try {
+    const commentId = await createTierListComment({
+      tierListId: access.tierList.id,
+      authorId: req.session.userId,
+      parentCommentId: parsed.data.parentCommentId,
+      content: parsed.data.content,
+    })
+    await createCommentNotificationsForComment(commentId)
+    const comments = await listTierListComments(access.tierList.id)
+    res.json({ comments, createdCommentId: commentId })
+  } catch (error) {
+    if (error?.code === 'COMMENT_PARENT_INVALID') {
+      return res.status(400).json({ error: 'comment_parent_invalid' })
+    }
+    if (error?.code === 'COMMENT_REPLY_DEPTH_INVALID') {
+      return res.status(400).json({ error: 'comment_reply_depth_invalid' })
+    }
+    throw error
+  }
+})
+
+router.delete('/:id/comments/:commentId', requireAuth, async (req, res) => {
+  const access = await getTierListAccessContext(req, req.params.id)
+  if (access.error === 'not_found') return res.status(404).json({ error: 'not_found' })
+  if (access.error === 'forbidden') return res.status(403).json({ error: 'forbidden' })
+
+  const comment = await findTierListCommentById(req.params.commentId)
+  if (!comment || comment.tierListId !== access.tierList.id) return res.status(404).json({ error: 'not_found' })
+
+  const currentUser = req.session.userId === comment.authorId ? { isAdmin: false } : await findUserById(req.session.userId)
+  if (req.session.userId !== comment.authorId && !currentUser?.isAdmin) {
+    return res.status(403).json({ error: 'forbidden' })
+  }
+
+  await deleteTierListComment(comment.id)
+  const comments = await listTierListComments(access.tierList.id)
+  res.json({ comments })
+})
+
 router.post('/custom-items', requireAuth, upload.single('image'), async (req, res) => {
   if (!req.file) return res.status(400).json({ error: 'file_required' })