wip

Author: Dieterbe

lib/models/nutrition/log_powersync.dart

@@ -0,0 +1,68 @@
+import 'package:powersync/sqlite3.dart' as sqlite;
+import 'package:wger/models/schema.dart';
+
+import '../../powersync.dart';
+
+/// TodoItem represents a result row of a query on "todos".
+///
+/// This class is immutable - methods on this class do not modify the instance
+/// directly. Instead, watch or re-query the data to get the updated item.
+/// confirm how the watch works. this seems like a weird pattern
+class TodoItem {
+  final String id;
+  final String description;
+  final String? photoId;
+  final bool completed;
+
+  TodoItem(
+      {required this.id,
+      required this.description,
+      required this.completed,
+      required this.photoId});
+
+  factory TodoItem.fromRow(sqlite.Row row) {
+    return TodoItem(
+        id: row['id'],
+        description: row['description'],
+        photoId: row['photo_id'],
+        completed: row['completed'] == 1);
+  }
+
+  Future<void> toggle() async {
+    if (completed) {
+      await db.execute(
+          'UPDATE $logItemsTable SET completed = FALSE, completed_by = NULL, completed_at = NULL WHERE id = ?',
+          [id]);
+    } else {
+      await db.execute(
+          'UPDATE $logItemsTable SET completed = TRUE, completed_by = ?, completed_at = datetime() WHERE id = ?',
+          [await getUserId(), id]);
+    }
+  }
+
+  Future<void> delete() async {
+    await db.execute('DELETE FROM $logItemsTable WHERE id = ?', [id]);
+  }
+
+  static Future<void> addPhoto(String photoId, String id) async {
+    await db.execute('UPDATE $logItemsTable SET photo_id = ? WHERE id = ?', [photoId, id]);
+  }
+}
+/*
+  static Stream<List<TodoList>> watchLists() {
+    // This query is automatically re-run when data in "lists" or "todos" is modified.
+    return db.watch('SELECT * FROM lists ORDER BY created_at, id').map((results) {
+      return results.map(TodoList.fromRow).toList(growable: false);
+    });
+  }
+  
+ static Future<TodoList> create(String name) async {
+    final results = await db.execute('''
+      INSERT INTO
+        lists(id, created_at, name, owner_id)
+        VALUES(uuid(), datetime(), ?, ?)
+      RETURNING *
+      ''', [name, await getUserId()]);
+    return TodoList.fromRow(results.first);
+  }
+  */

lib/models/schema.dart

@@ -2,9 +2,41 @@ import 'package:powersync/powersync.dart';
 
 const todosTable = 'todos';
 const musclesTable = 'muscles';
+const logItemsTable = 'nutrition_logitem';
 
-// these are the same ones as in postgres, except for 'id'
+/* 
+Postgres:
+wger@localhost:wger> \d nutrition_logitem;
++----------------+--------------------------+--------------------------------------------+
+| Column         | Type                     | Modifiers                                  |
+|----------------+--------------------------+--------------------------------------------|
+| id             | integer                  |  not null generated by default as identity |
+| datetime       | timestamp with time zone |  not null                                  |
+| comment        | text                     |                                            |
+| amount         | numeric(6,2)             |  not null                                  |
+| ingredient_id  | integer                  |  not null                                  |
+| plan_id        | integer                  |  not null                                  |
+| weight_unit_id | integer                  |                                            |
+| meal_id        | integer                  |                                            |
++----------------+--------------------------+--------------------------------------------+
+*/
+// these are the same ones as in postgres, except for 'id', because that is implied
 Schema schema = const Schema([
+  Table(
+    logItemsTable,
+    [
+      Column.text('datetime'),
+      Column.text('comment'),
+      Column.integer('amount'),
+      Column.integer('ingredient_id'),
+      Column.integer('plan_id'),
+      Column.integer('weight_unit_id'),
+      Column.integer('meal_id'),
+    ],
+    indexes: [
+      // Index('plan', [IndexedColumn('plan_id')])
+    ],
+  ),
   Table(
     todosTable,
     [
@@ -31,11 +63,7 @@ Schema schema = const Schema([
   ),
   Table(
     'muscles',
-    [
-      Column.text('name'),
-      Column.text('name_en'),
-      Column.text('is_front'),
-    ],
+    [Column.text('name'), Column.text('name_en'), Column.text('is_front')],
   ),
 ]);
 

lib/models/todo_item.dart

@@ -52,7 +52,7 @@ class DjangoConnector extends PowerSyncBackendConnector {
     }
 
     try {
-      for (var op in transaction.crud) {
+      for (final op in transaction.crud) {
         final record = {
           'table': op.table,
           'data': {'id': op.id, ...?op.opData},
@@ -86,9 +86,14 @@ late final PowerSyncDatabase db;
 // Hacky flag to ensure the database is only initialized once, better to do this with listeners
 bool _dbInitialized = false;
 
+/// id of the user currently logged in
+Future<String?> getUserId() async {
+  final prefs = await SharedPreferences.getInstance();
+  return prefs.getString('id');
+}
+
 Future<bool> isLoggedIn() async {
-  final prefs = await SharedPreferences.getInstance(); // Initialize SharedPreferences
-  final userId = prefs.getString('id');
+  final userId = await getUserId();
   return userId != null;
 }
 
@@ -113,16 +118,13 @@ Future<void> openDatabase() async {
     // Otherwise, connect once logged in.
     currentConnector = DjangoConnector(db);
     db.connect(connector: currentConnector);
+
+    // TODO: should we respond to login state changing? like here:
+    // https://www.powersync.com/blog/flutter-tutorial-building-an-offline-first-chat-app-with-supabase-and-powersync#implement-auth-methods
   }
 }
 
 /// Explicit sign out - clear database and log out.
 Future<void> logout() async {
   await db.disconnectAndClear();
 }
-
-/// id of the user currently logged in
-Future<String?> getUserId() async {
-  final prefs = await SharedPreferences.getInstance();
-  return prefs.getString('id');
-}