Order comments in Firestore instead of on client

web/lib/firebase/comments.ts

@@ -92,17 +92,15 @@ function getCommentsOnGroupCollection(groupId: string) {
 }
 
 export async function listAllComments(contractId: string) {
-  const comments = await getValues<Comment>(getCommentsCollection(contractId))
+  return await getValues<Comment>(
-  comments.sort((c1, c2) => c1.createdTime - c2.createdTime)
+    query(getCommentsCollection(contractId), orderBy('createdTime', 'desc'))
-  return comments
+  )
 }
 
 export async function listAllCommentsOnGroup(groupId: string) {
-  const comments = await getValues<GroupComment>(
+  return await getValues<GroupComment>(
-    getCommentsOnGroupCollection(groupId)
+    query(getCommentsOnGroupCollection(groupId), orderBy('createdTime', 'desc'))
   )
-  comments.sort((c1, c2) => c1.createdTime - c2.createdTime)
-  return comments
 }
 
 export function listenForCommentsOnContract(
@@ -110,23 +108,21 @@ export function listenForCommentsOnContract(
   setComments: (comments: ContractComment[]) => void
 ) {
   return listenForValues<ContractComment>(
-    getCommentsCollection(contractId),
+    query(getCommentsCollection(contractId), orderBy('createdTime', 'desc')),
-    (comments) => {
+    setComments
-      comments.sort((c1, c2) => c1.createdTime - c2.createdTime)
-      setComments(comments)
-    }
   )
 }
+
 export function listenForCommentsOnGroup(
   groupId: string,
   setComments: (comments: GroupComment[]) => void
 ) {
   return listenForValues<GroupComment>(
+    query(
       getCommentsOnGroupCollection(groupId),
-    (comments) => {
+      orderBy('createdTime', 'desc')
-      comments.sort((c1, c2) => c1.createdTime - c2.createdTime)
+    ),
-      setComments(comments)
+    setComments
-    }
   )
 }
 

web/pages/[username]/[contractSlug].tsx

@@ -168,9 +168,6 @@ export function ContractPageContent(
     [bets]
   )
 
-  // Sort for now to see if bug is fixed.
-  comments.sort((c1, c2) => c1.createdTime - c2.createdTime)
-
   const tips = useTipTxns({ contractId: contract.id })
 
   const [showConfetti, setShowConfetti] = useState(false)