commenting on a post now works

lib/pages/full_post.dart

@@ -9,6 +9,7 @@ import '../util/extensions/api.dart';
 import '../widgets/comment_section.dart';
 import '../widgets/post.dart';
 import '../widgets/save_post_button.dart';
+import '../widgets/write_comment.dart';
 
 class FullPostPage extends HookWidget {
   final int id;
@@ -29,6 +30,7 @@ class FullPostPage extends HookWidget {
     final fullPostSnap = useMemoFuture(() => LemmyApi(instanceUrl)
         .v1
         .getPost(id: id, auth: accStore.defaultTokenFor(instanceUrl)?.raw));
+    final newComments = useState(const <CommentView>[]);
 
     // FALLBACK VIEW
 
@@ -59,6 +61,16 @@ class FullPostPage extends HookWidget {
 
     sharePost() => Share.text('Share post', post.apId, 'text/plain');
 
+    comment() async {
+      final newComment = await showDialog<CommentView>(
+        context: context,
+        child: WriteComment.toPost(post),
+      );
+      if (newComment != null) {
+        newComments.value = [...newComments.value, newComment];
+      }
+    }
+
     return Scaffold(
         appBar: AppBar(
           leading: BackButton(),
@@ -70,12 +82,15 @@ class FullPostPage extends HookWidget {
                 onPressed: () => Post.showMoreMenu(context, post)),
           ],
         ),
+        floatingActionButton: FloatingActionButton(
+            onPressed: comment, child: Icon(Icons.comment)),
         body: ListView(
           physics: const AlwaysScrollableScrollPhysics(),
           children: [
             Post(post, fullPost: true),
             if (fullPostSnap.hasData)
-              CommentSection(fullPost.comments,
+              CommentSection(
+                  newComments.value.followedBy(fullPost.comments).toList(),
                   postCreatorId: fullPost.post.creatorId)
             else if (fullPostSnap.hasError)
               Padding(

lib/widgets/comment_section.dart

@@ -35,12 +35,10 @@ class CommentSection extends HookWidget {
   @override
   Widget build(BuildContext context) {
     final sorting = useState(sortType);
-    final rawComms = useState(rawComments);
-    final comms = useState(comments);
 
     void sortComments(CommentSortType sort) {
       if (sort != sorting.value && sort != CommentSortType.chat) {
-        CommentTree.sortList(sort, comms.value);
+        CommentTree.sortList(sort, comments);
       }
 
       sorting.value = sort;
@@ -100,14 +98,13 @@ class CommentSection extends HookWidget {
           ),
         )
       else if (sorting.value == CommentSortType.chat)
-        for (final com in rawComms.value)
+        for (final com in rawComments)
           Comment(
             CommentTree(com),
             postCreatorId: postCreatorId,
           )
       else
-        for (final com in comms.value)
-          Comment(com, postCreatorId: postCreatorId),
+        for (final com in comments) Comment(com, postCreatorId: postCreatorId),
     ]);
   }
 }