show next activity after completing activity

lib/pangea/widgets/chat/message_toolbar.dart

@@ -297,8 +297,10 @@ class MessageToolbarState extends State<MessageToolbar> {
   }
 
   void showPracticeActivity() {
-    toolbarContent =
-        PracticeActivityCard(pangeaMessageEvent: widget.pangeaMessageEvent);
+    toolbarContent = PracticeActivityCard(
+      pangeaMessageEvent: widget.pangeaMessageEvent,
+      controller: this,
+    );
   }
 
   void showImage() {}

lib/pangea/widgets/practice_activity/practice_activity_card.dart

@@ -1,8 +1,11 @@
 import 'dart:developer';
 
+import 'package:collection/collection.dart';
+import 'package:fluffychat/pangea/enum/message_mode_enum.dart';
 import 'package:fluffychat/pangea/matrix_event_wrappers/pangea_message_event.dart';
 import 'package:fluffychat/pangea/matrix_event_wrappers/practice_activity_event.dart';
 import 'package:fluffychat/pangea/utils/bot_style.dart';
+import 'package:fluffychat/pangea/widgets/chat/message_toolbar.dart';
 import 'package:fluffychat/pangea/widgets/practice_activity/practice_activity_content.dart';
 import 'package:fluffychat/widgets/matrix.dart';
 import 'package:flutter/foundation.dart';
@@ -11,10 +14,12 @@ import 'package:flutter_gen/gen_l10n/l10n.dart';
 
 class PracticeActivityCard extends StatefulWidget {
   final PangeaMessageEvent pangeaMessageEvent;
+  final MessageToolbarState controller;
 
   const PracticeActivityCard({
     super.key,
     required this.pangeaMessageEvent,
+    required this.controller,
   });
 
   @override
@@ -31,7 +36,7 @@ class MessagePracticeActivityCardState extends State<PracticeActivityCard> {
     loadInitialData();
   }
 
-  void loadInitialData() {
+  String? get langCode {
     final String? langCode = MatrixState.pangeaController.languageController
         .activeL2Model()
         ?.langCode;
@@ -41,24 +46,48 @@ class MessagePracticeActivityCardState extends State<PracticeActivityCard> {
         SnackBar(content: Text(L10n.of(context)!.noLanguagesSet)),
       );
       debugger(when: kDebugMode);
-      return;
+      return null;
     }
+    return langCode;
+  }
 
-    practiceEvent =
-        widget.pangeaMessageEvent.practiceActivities(langCode).firstOrNull;
+  void loadInitialData() {
+    if (langCode == null) return;
+    debugPrint(
+      "total events: ${widget.pangeaMessageEvent.practiceActivities(langCode!).length}",
+    );
+    debugPrint(
+      "incomplete practice events: ${widget.pangeaMessageEvent.practiceActivities(langCode!).where((element) => !element.isComplete).length}",
+    );
+    updatePracticeActivity();
+    // practiceEvent = widget.pangeaMessageEvent
+    //     .practiceActivities(langCode)
+    //     .firstWhereOrNull((activity) => !activity.isComplete);
 
     if (practiceEvent == null) {
       debugger(when: kDebugMode);
     }
-    setState(() {});
   }
 
-  void updatePracticeActivity(PracticeActivityEvent? newEvent) {
+  void updatePracticeActivity() {
+    if (langCode == null) return;
     setState(() {
-      practiceEvent = newEvent;
+      practiceEvent = widget.pangeaMessageEvent
+          .practiceActivities(langCode!)
+          .firstWhereOrNull(
+            (activity) =>
+                activity.event.eventId != practiceEvent?.event.eventId &&
+                !activity.isComplete,
+          );
     });
   }
 
+  void showNextActivity() {
+    if (langCode == null) return;
+    updatePracticeActivity();
+    widget.controller.updateMode(MessageMode.practiceActivity);
+  }
+
   @override
   Widget build(BuildContext context) {
     if (practiceEvent == null) {
@@ -74,6 +103,7 @@ class MessagePracticeActivityCardState extends State<PracticeActivityCard> {
     return PracticeActivityContent(
       practiceEvent: practiceEvent!,
       pangeaMessageEvent: widget.pangeaMessageEvent,
+      controller: this,
     );
   }
 }

lib/pangea/widgets/practice_activity/practice_activity_content.dart

@@ -7,6 +7,7 @@ import 'package:fluffychat/pangea/matrix_event_wrappers/practice_activity_event.
 import 'package:fluffychat/pangea/models/practice_activities.dart/practice_activity_record_model.dart';
 import 'package:fluffychat/pangea/utils/error_handler.dart';
 import 'package:fluffychat/pangea/widgets/practice_activity/multiple_choice_activity.dart';
+import 'package:fluffychat/pangea/widgets/practice_activity/practice_activity_card.dart';
 import 'package:fluffychat/widgets/matrix.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_gen/gen_l10n/l10n.dart';
@@ -14,11 +15,13 @@ import 'package:flutter_gen/gen_l10n/l10n.dart';
 class PracticeActivityContent extends StatefulWidget {
   final PracticeActivityEvent practiceEvent;
   final PangeaMessageEvent pangeaMessageEvent;
+  final MessagePracticeActivityCardState controller;
 
   const PracticeActivityContent({
     super.key,
     required this.practiceEvent,
     required this.pangeaMessageEvent,
+    required this.controller,
   });
 
   @override
@@ -93,7 +96,7 @@ class MessagePracticeActivityContentState
         },
       );
       return null;
-    });
+    }).then((_) => widget.controller.showNextActivity());
 
     setState(() {
       recordSubmittedThisSession = true;