Fix request history

lib/matrix_api/model/sync_update.dart

@@ -33,6 +33,8 @@ class SyncUpdate {
   DeviceListsUpdate deviceLists;
   Map<String, int> deviceOneTimeKeysCount;
 
+  SyncUpdate();
+
   SyncUpdate.fromJson(Map<String, dynamic> json) {
     nextBatch = json['next_batch'];
     rooms = json['rooms'] != null ? RoomsUpdate.fromJson(json['rooms']) : null;
@@ -97,6 +99,8 @@ class RoomsUpdate {
   Map<String, InvitedRoomUpdate> invite;
   Map<String, LeftRoomUpdate> leave;
 
+  RoomsUpdate();
+
   RoomsUpdate.fromJson(Map<String, dynamic> json) {
     join = json['join'] != null
         ? (json['join'] as Map)
@@ -136,6 +140,8 @@ class JoinedRoomUpdate extends SyncRoomUpdate {
   List<BasicRoomEvent> accountData;
   UnreadNotificationCounts unreadNotifications;
 
+  JoinedRoomUpdate();
+
   JoinedRoomUpdate.fromJson(Map<String, dynamic> json) {
     summary =
         json['summary'] != null ? RoomSummary.fromJson(json['summary']) : null;
@@ -260,6 +266,9 @@ class TimelineUpdate {
   List<MatrixEvent> events;
   bool limited;
   String prevBatch;
+
+  TimelineUpdate();
+
   TimelineUpdate.fromJson(Map<String, dynamic> json) {
     events = json['events'] != null
         ? (json['events'] as List).map((i) => MatrixEvent.fromJson(i)).toList()
@@ -267,6 +276,7 @@ class TimelineUpdate {
     limited = json['limited'];
     prevBatch = json['prev_batch'];
   }
+
   Map<String, dynamic> toJson() {
     final data = <String, dynamic>{};
     if (events != null) {

lib/src/client.dart

@@ -737,19 +737,22 @@ class Client {
   }
 
   /// Use this method only for testing utilities!
-  Future<void> handleSync(SyncUpdate sync) async {
+  Future<void> handleSync(SyncUpdate sync, {bool sortAtTheEnd = false}) async {
     if (sync.toDevice != null) {
       await _handleToDeviceEvents(sync.toDevice);
     }
     if (sync.rooms != null) {
       if (sync.rooms.join != null) {
-        await _handleRooms(sync.rooms.join, Membership.join);
+        await _handleRooms(sync.rooms.join, Membership.join,
+            sortAtTheEnd: sortAtTheEnd);
       }
       if (sync.rooms.invite != null) {
-        await _handleRooms(sync.rooms.invite, Membership.invite);
+        await _handleRooms(sync.rooms.invite, Membership.invite,
+            sortAtTheEnd: sortAtTheEnd);
       }
       if (sync.rooms.leave != null) {
-        await _handleRooms(sync.rooms.leave, Membership.leave);
+        await _handleRooms(sync.rooms.leave, Membership.leave,
+            sortAtTheEnd: sortAtTheEnd);
       }
     }
     if (sync.presence != null) {
@@ -827,7 +830,8 @@ class Client {
   }
 
   Future<void> _handleRooms(
-      Map<String, SyncRoomUpdate> rooms, Membership membership) async {
+      Map<String, SyncRoomUpdate> rooms, Membership membership,
+      {bool sortAtTheEnd = false}) async {
     for (final entry in rooms.entries) {
       final id = entry.key;
       final room = entry.value;
@@ -853,8 +857,11 @@ class Client {
           handledEvents = true;
         }
         if (room.timeline?.events?.isNotEmpty ?? false) {
-          await _handleRoomEvents(id,
-              room.timeline.events.map((i) => i.toJson()).toList(), 'timeline');
+          await _handleRoomEvents(
+              id,
+              room.timeline.events.map((i) => i.toJson()).toList(),
+              sortAtTheEnd ? 'history' : 'timeline',
+              sortAtTheEnd: sortAtTheEnd);
           handledEvents = true;
         }
         if (room.ephemeral?.isNotEmpty ?? false) {
@@ -938,14 +945,16 @@ class Client {
   }
 
   Future<void> _handleRoomEvents(
-      String chat_id, List<dynamic> events, String type) async {
+      String chat_id, List<dynamic> events, String type,
+      {bool sortAtTheEnd = false}) async {
     for (num i = 0; i < events.length; i++) {
-      await _handleEvent(events[i], chat_id, type);
+      await _handleEvent(events[i], chat_id, type, sortAtTheEnd: sortAtTheEnd);
     }
   }
 
   Future<void> _handleEvent(
-      Map<String, dynamic> event, String roomID, String type) async {
+      Map<String, dynamic> event, String roomID, String type,
+      {bool sortAtTheEnd = false}) async {
     if (event['type'] is String && event['content'] is Map<String, dynamic>) {
       // The client must ignore any new m.room.encryption event to prevent
       // man-in-the-middle attacks!
@@ -960,7 +969,9 @@ class Client {
 
       // ephemeral events aren't persisted and don't need a sort order - they are
       // expected to be processed as soon as they come in
-      final sortOrder = type != 'ephemeral' ? room.newSortOrder : 0.0;
+      final sortOrder = type != 'ephemeral'
+          ? (sortAtTheEnd ? room.oldSortOrder : room.newSortOrder)
+          : 0.0;
       var update = EventUpdate(
         eventType: event['type'],
         roomID: roomID,

lib/src/room.dart

@@ -791,28 +791,17 @@ class Room {
     final loadFn = () async {
       if (!((resp.chunk?.isNotEmpty ?? false) && resp.end != null)) return;
 
-      if (resp.state != null) {
-        for (final state in resp.state) {
-          await EventUpdate(
-            type: 'state',
-            roomID: id,
-            eventType: state.type,
-            content: state.toJson(),
-            sortOrder: oldSortOrder,
-          ).decrypt(this, store: true);
-        }
-      }
-
-      for (final hist in resp.chunk) {
-        final eventUpdate = await EventUpdate(
-          type: 'history',
-          roomID: id,
-          eventType: hist.type,
-          content: hist.toJson(),
-          sortOrder: oldSortOrder,
-        ).decrypt(this, store: true);
-        client.onEvent.add(eventUpdate);
-      }
+      await client.handleSync(
+          SyncUpdate()
+            ..rooms = (RoomsUpdate()
+              ..join = {
+                '$id': (JoinedRoomUpdate()
+                  ..state = resp.state
+                  ..timeline = (TimelineUpdate()
+                    ..events = resp.chunk
+                    ..prevBatch = resp.end)),
+              }),
+          sortAtTheEnd: true);
     };
 
     if (client.database != null) {
@@ -824,15 +813,6 @@ class Room {
     } else {
       await loadFn();
     }
-    client.onRoomUpdate.add(
-      RoomUpdate(
-        id: id,
-        membership: membership,
-        prev_batch: resp.end,
-        notification_count: notificationCount,
-        highlight_count: highlightCount,
-      ),
-    );
   }
 
   /// Sets this room as a direct chat for this user if not already.

test/timeline_test.dart

@@ -49,19 +49,6 @@ void main() {
 
     test('Create', () async {
       await client.checkServer('https://fakeServer.notExisting');
-      client.onEvent.add(EventUpdate(
-          type: 'timeline',
-          roomID: roomID,
-          eventType: 'm.room.message',
-          content: {
-            'type': 'm.room.message',
-            'content': {'msgtype': 'm.text', 'body': 'Testcase'},
-            'sender': '@alice:example.com',
-            'status': 2,
-            'event_id': '1',
-            'origin_server_ts': testTimeStamp
-          },
-          sortOrder: room.newSortOrder));
 
       client.onEvent.add(EventUpdate(
           type: 'timeline',
@@ -75,7 +62,20 @@ void main() {
             'event_id': '2',
             'origin_server_ts': testTimeStamp - 1000
           },
-          sortOrder: room.oldSortOrder));
+          sortOrder: room.newSortOrder));
+      client.onEvent.add(EventUpdate(
+          type: 'timeline',
+          roomID: roomID,
+          eventType: 'm.room.message',
+          content: {
+            'type': 'm.room.message',
+            'content': {'msgtype': 'm.text', 'body': 'Testcase'},
+            'sender': '@alice:example.com',
+            'status': 2,
+            'event_id': '1',
+            'origin_server_ts': testTimeStamp
+          },
+          sortOrder: room.newSortOrder));
 
       expect(timeline.sub != null, true);