From b060725ffebdf97f3379fa603da8d614a7a4e0d5 Mon Sep 17 00:00:00 2001
From: Simon Binder <simon@journeyapps.com>
Date: Fri, 21 Feb 2025 17:31:25 +0100
Subject: [PATCH] Adopt priorities in example app

---
 demos/supabase-todolist/README.md             | 19 +++++++++++++++++++
 .../lib/widgets/lists_page.dart               |  5 ++++-
 .../lib/widgets/todo_list_page.dart           | 19 ++++++++++++++-----
 .../xcshareddata/xcschemes/Runner.xcscheme    |  1 +
 demos/supabase-todolist/pubspec.lock          |  8 ++++----
 5 files changed, 42 insertions(+), 10 deletions(-)

diff --git a/demos/supabase-todolist/README.md b/demos/supabase-todolist/README.md
index 542aa14d..4845b3e1 100644
--- a/demos/supabase-todolist/README.md
+++ b/demos/supabase-todolist/README.md
@@ -29,6 +29,25 @@ Create a new PowerSync instance, connecting to the database of the Supabase proj
 
 Then deploy the following sync rules:
 
+```yaml
+bucket_definitions:
+  user_lists:
+    priority: 1
+    parameters: select id as list_id from lists where owner_id = request.user_id()
+    data:
+      - select * from lists where id = bucket.list_id
+
+  user_todos:
+    parameters: select id as list_id from lists where owner_id = request.user_id()
+    data:
+      - select * from todos where list_id = bucket.list_id
+```
+
+The rules synchronize list with a higher priority the items within the list. This can be
+useful to keep the list overview page reactive during a large sync cycle affecting many
+rows in the `user_todos` bucket. The two buckets can also be unified into a single one if
+priorities are not important (the app will work without changes):
+
 ```yaml
 bucket_definitions:
   user_lists:
diff --git a/demos/supabase-todolist/lib/widgets/lists_page.dart b/demos/supabase-todolist/lib/widgets/lists_page.dart
index 142d9e9f..5b237b4e 100644
--- a/demos/supabase-todolist/lib/widgets/lists_page.dart
+++ b/demos/supabase-todolist/lib/widgets/lists_page.dart
@@ -1,6 +1,7 @@
 import 'dart:async';
 
 import 'package:flutter/material.dart';
+import 'package:powersync/powersync.dart';
 
 import './list_item.dart';
 import './list_item_dialog.dart';
@@ -51,6 +52,8 @@ class ListsWidget extends StatefulWidget {
 }
 
 class _ListsWidgetState extends State<ListsWidget> {
+  static final _listsPriority = BucketPriority(1);
+
   List<TodoList> _data = [];
   bool hasSynced = false;
   StreamSubscription? _subscription;
@@ -75,7 +78,7 @@ class _ListsWidgetState extends State<ListsWidget> {
         return;
       }
       setState(() {
-        hasSynced = status.hasSynced ?? false;
+        hasSynced = status.statusForPriority(_listsPriority).hasSynced ?? false;
       });
     });
   }
diff --git a/demos/supabase-todolist/lib/widgets/todo_list_page.dart b/demos/supabase-todolist/lib/widgets/todo_list_page.dart
index e36e1867..70dde161 100644
--- a/demos/supabase-todolist/lib/widgets/todo_list_page.dart
+++ b/demos/supabase-todolist/lib/widgets/todo_list_page.dart
@@ -79,11 +79,20 @@ class TodoListWidgetState extends State<TodoListWidget> {
 
   @override
   Widget build(BuildContext context) {
-    return ListView(
-      padding: const EdgeInsets.symmetric(vertical: 8.0),
-      children: _data.map((todo) {
-        return TodoItemWidget(todo: todo);
-      }).toList(),
+    return StreamBuilder(
+      stream: TodoList.watchSyncStatus().map((e) => e.hasSynced),
+      builder: (context, snapshot) {
+        if (snapshot.data ?? false) {
+          return const Text('Busy with sync');
+        }
+
+        return ListView(
+          padding: const EdgeInsets.symmetric(vertical: 8.0),
+          children: _data.map((todo) {
+            return TodoItemWidget(todo: todo);
+          }).toList(),
+        );
+      },
     );
   }
 }
diff --git a/demos/supabase-todolist/macos/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme b/demos/supabase-todolist/macos/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
index 992a778b..943aed19 100644
--- a/demos/supabase-todolist/macos/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
+++ b/demos/supabase-todolist/macos/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
@@ -59,6 +59,7 @@
       ignoresPersistentStateOnLaunch = "NO"
       debugDocumentVersioning = "YES"
       debugServiceExtension = "internal"
+      enableGPUValidationMode = "1"
       allowLocationSimulation = "YES">
       <BuildableProductRunnable
          runnableDebuggingMode = "0">
diff --git a/demos/supabase-todolist/pubspec.lock b/demos/supabase-todolist/pubspec.lock
index c6d85781..969bb7bd 100644
--- a/demos/supabase-todolist/pubspec.lock
+++ b/demos/supabase-todolist/pubspec.lock
@@ -478,28 +478,28 @@ packages:
       path: "../../packages/powersync"
       relative: true
     source: path
-    version: "1.11.2"
+    version: "1.11.3"
   powersync_attachments_helper:
     dependency: "direct main"
     description:
       path: "../../packages/powersync_attachments_helper"
       relative: true
     source: path
-    version: "0.6.18"
+    version: "0.6.18+1"
   powersync_core:
     dependency: "direct overridden"
     description:
       path: "../../packages/powersync_core"
       relative: true
     source: path
-    version: "1.1.2"
+    version: "1.1.3"
   powersync_flutter_libs:
     dependency: "direct overridden"
     description:
       path: "../../packages/powersync_flutter_libs"
       relative: true
     source: path
-    version: "0.4.4"
+    version: "0.4.5"
   pub_semver:
     dependency: transitive
     description: