automatic ats! finally!

lib/business_logic/timeline/timeline.dart

@@ -122,6 +122,11 @@ class PostModel implements Comparable {
     }
   }
 
+  // get instance of account that received this post
+  String getReceiverInstance() {
+    return identity.substring(identity.indexOf("@"));
+  }
+
   @override
   int compareTo(dynamic b) {
     return id.compareTo(b.id);

lib/dialogues/makepost.dart

@@ -16,6 +16,7 @@ class MakePost extends StatefulWidget {
 }
 
 class _MakePostState extends State<MakePost> {
+  String replyAts = "";
   String accountid = global.settings!.activeIdentity;
   int? maxLength;
   String text = "";
@@ -45,18 +46,32 @@ class _MakePostState extends State<MakePost> {
     if (widget.inReplyTo != null) {
       global.settings!.identities.forEach((key, value) async {
         final post = await getPostFromUrl(key, widget.inReplyTo!.uri);
-        if (post.keys.first == 200) {
-          setState(() {
-            identitiesAvailable.addAll({key: post.values.first!.id});
-          });
+        if (mounted) {
+          if (post.keys.first == 200) {
+            setState(() {
+              identitiesAvailable.addAll({key: post.values.first!.id});
+            });
+          }
         }
       });
     }
   }
 
+  void addAt(String at) {
+    if (!at.contains("@")) {
+      at = "$at${widget.inReplyTo!.getReceiverInstance()} ";
+    }
+    replyAts = "$replyAts@$at ";
+  }
+
   @override
   void initState() {
     if (widget.inReplyTo != null) {
+      addAt(widget.inReplyTo!.account.acct);
+      for (var element in widget.inReplyTo!.mentions) {
+        addAt(element.acct);
+      }
+
       accountid = widget.inReplyTo!.identity;
       identitiesAvailable.addAll({
         widget.inReplyTo!.identity: widget.inReplyTo!.id,
@@ -188,6 +203,7 @@ class _MakePostState extends State<MakePost> {
       SizedBox(
         height: MediaQuery.of(context).size.height * 0.6,
         child: TextFormField(
+          initialValue: replyAts,
           style: Theme.of(context).textTheme.bodyMedium,
           maxLines: null,
           expands: true,