sort the timlines i guess

lib/business_logic/timeline/timeline.dart

@@ -11,7 +11,7 @@ class TimelinePartModel {
 
 enum Visibility { public, unlisted, private, direct }
 
-class PostModel {
+class PostModel implements Comparable {
   late String id;
   late String uri;
   late String content;
@@ -34,6 +34,11 @@ class PostModel {
     reblogged = json["reblogged"] as bool;
   }
 
+  @override
+  int compareTo(dynamic b) {
+    return id.compareTo(b.id);
+  }
+
   Future<ThreadModel> getThread() async {
     final token = await settings.loadToken();
     final baseUrl = await settings.loadInstanceUrl();
@@ -66,28 +71,32 @@ class PostModel {
 class ThreadModel {
   late List<PostModel> posts;
   ThreadModel(List<PostModel> allPosts) {
+    allPosts.sort();
     posts = allPosts;
   }
 }
 
-Future<ThreadModel> getTimelineFromServer() async {
+Future<ThreadModel> getTimelineFromServer(String? olderThan) async {
   final token = await settings.loadToken();
+
+  Map<String, String> query = {"limit": 1.toString()};
+  if (olderThan != null) {
+    query.addAll({"max_id": olderThan});
+  }
+
   final baseUrl = await settings.loadInstanceUrl();
   final url = Uri(
     scheme: "https",
     host: baseUrl,
     path: "/api/v1/timelines/home",
-    queryParameters: {"limit": 1.toString()},
+    queryParameters: query,
   );
+
   Map<String, String> headers = {"Authorization": "Bearer $token"};
   headers.addAll(global.defaultHeaders);
 
   final response = await http.get(url, headers: headers);
   final List<dynamic> json = jsonDecode(response.body);
-
-  List<String> ids = [];
-
-  ids.add(json[0]["id"]);
   final post = PostModel.fromJson(json[0]);
 
   return await post.getThread();

lib/pages/timeline/timeline.dart

@@ -5,12 +5,12 @@ import '../../business_logic/timeline/timeline.dart' as tl;
 
 class Timeline extends StatefulWidget {
   const Timeline({Key? key}) : super(key: key);
-
   @override
   State<Timeline> createState() => _TimelineState();
 }
 
 class _TimelineState extends State<Timeline> {
+  String? id;
   final controller = ScrollController();
   List<Widget> children = [];
   bool loading = false;
@@ -30,7 +30,8 @@ class _TimelineState extends State<Timeline> {
   Future fetchMore() async {
     loading = true;
 
-    final model = await tl.getTimelineFromServer();
+    final model = await tl.getTimelineFromServer(id);
+    id = model.posts[model.posts.length - 1].id;
 
     setState(() {
       if (children.isNotEmpty) {