Feat offline support

.gitignore

@@ -31,9 +31,10 @@ migrate_working_dir/
 .pub-cache/
 .pub/
 /build/
-
-# Web related
-lib/generated_plugin_registrant.dart
+generated_plugin_registrant.cc
+generated_plugin_registrant.h
+generated_plugins.cmake
+GeneratedPluginRegistrant.swift
 
 # Symbolication related
 app.*.symbols
@@ -46,4 +47,4 @@ app.*.map.json
 /android/app/profile
 /android/app/release
 
-constants.dart
+constants.dart

README.md

@@ -16,12 +16,13 @@ Note: If you setup Appwrite on your local machine, you will need to create a pub
 
 We need to make a few configuration changes to your Appwrite server.
 
-1. Add a new Flutter App (Android or iOS or both) in Appwrite:
+1. Add a new Flutter App in Appwrite:
 
    ![Console - Add platform](docs/Console%20-%20Add%20platform.png)
 
    1. Android - `io.appwrite.demo_todo_with_flutter`
    2. iOS/Mac OS - `io.appwrite.demoTodoWithFlutter`
+   3. Linux - `demo_todo_with_flutter`
 
 2. Create a project in the Appwrite Console with id `demo-todos`.
 

android/app/src/main/AndroidManifest.xml

@@ -31,4 +31,5 @@
             android:name="flutterEmbedding"
             android:value="2" />
     </application>
+    <uses-permission android:name="android.permission.INTERNET"/>
 </manifest>

ios/Flutter/AppFrameworkInfo.plist

@@ -21,6 +21,6 @@
   <key>CFBundleVersion</key>
   <string>1.0</string>
   <key>MinimumOSVersion</key>
-  <string>9.0</string>
+  <string>11.0</string>
 </dict>
 </plist>

ios/Podfile

@@ -1,5 +1,5 @@
 # Uncomment this line to define a global platform for your project
-# platform :ios, '9.0'
+# platform :ios, '11.0'
 
 # CocoaPods analytics sends network stats synchronously affecting flutter build latency.
 ENV['COCOAPODS_DISABLE_STATS'] = 'true'

ios/Podfile.lock

@@ -1,25 +1,45 @@
 PODS:
+  - connectivity_plus (0.0.1):
+    - Flutter
+    - ReachabilitySwift
   - device_info_plus (0.0.1):
     - Flutter
   - Flutter (1.0.0)
   - flutter_web_auth_2 (1.1.1):
     - Flutter
+  - FMDB (2.7.5):
+    - FMDB/standard (= 2.7.5)
+  - FMDB/standard (2.7.5)
   - package_info_plus (0.4.5):
     - Flutter
-  - path_provider_ios (0.0.1):
+  - path_provider_foundation (0.0.1):
+    - Flutter
+    - FlutterMacOS
+  - ReachabilitySwift (5.0.0)
+  - sqflite (0.0.2):
     - Flutter
+    - FMDB (>= 2.7.5)
   - url_launcher_ios (0.0.1):
     - Flutter
 
 DEPENDENCIES:
+  - connectivity_plus (from `.symlinks/plugins/connectivity_plus/ios`)
   - device_info_plus (from `.symlinks/plugins/device_info_plus/ios`)
   - Flutter (from `Flutter`)
   - flutter_web_auth_2 (from `.symlinks/plugins/flutter_web_auth_2/ios`)
   - package_info_plus (from `.symlinks/plugins/package_info_plus/ios`)
-  - path_provider_ios (from `.symlinks/plugins/path_provider_ios/ios`)
+  - path_provider_foundation (from `.symlinks/plugins/path_provider_foundation/ios`)
+  - sqflite (from `.symlinks/plugins/sqflite/ios`)
   - url_launcher_ios (from `.symlinks/plugins/url_launcher_ios/ios`)
 
+SPEC REPOS:
+  trunk:
+    - FMDB
+    - ReachabilitySwift
+
 EXTERNAL SOURCES:
+  connectivity_plus:
+    :path: ".symlinks/plugins/connectivity_plus/ios"
   device_info_plus:
     :path: ".symlinks/plugins/device_info_plus/ios"
   Flutter:
@@ -28,19 +48,25 @@ EXTERNAL SOURCES:
     :path: ".symlinks/plugins/flutter_web_auth_2/ios"
   package_info_plus:
     :path: ".symlinks/plugins/package_info_plus/ios"
-  path_provider_ios:
-    :path: ".symlinks/plugins/path_provider_ios/ios"
+  path_provider_foundation:
+    :path: ".symlinks/plugins/path_provider_foundation/ios"
+  sqflite:
+    :path: ".symlinks/plugins/sqflite/ios"
   url_launcher_ios:
     :path: ".symlinks/plugins/url_launcher_ios/ios"
 
 SPEC CHECKSUMS:
+  connectivity_plus: 413a8857dd5d9f1c399a39130850d02fe0feaf7e
   device_info_plus: e5c5da33f982a436e103237c0c85f9031142abed
-  Flutter: 50d75fe2f02b26cc09d224853bb45737f8b3214a
+  Flutter: f04841e97a9d0b0a8025694d0796dd46242b2854
   flutter_web_auth_2: a1bc00762c408a8f80b72a538cd7ff5b601c3e71
+  FMDB: 2ce00b547f966261cd18927a3ddb07cb6f3db82a
   package_info_plus: 6c92f08e1f853dc01228d6f553146438dafcd14e
-  path_provider_ios: 14f3d2fd28c4fdb42f44e0f751d12861c43cee02
+  path_provider_foundation: c68054786f1b4f3343858c1e1d0caaded73f0be9
+  ReachabilitySwift: 985039c6f7b23a1da463388634119492ff86c825
+  sqflite: 6d358c025f5b867b29ed92fc697fd34924e11904
   url_launcher_ios: 839c58cdb4279282219f5e248c3321761ff3c4de
 
-PODFILE CHECKSUM: aafe91acc616949ddb318b77800a7f51bffa2a4c
+PODFILE CHECKSUM: ef19549a9bc3046e7bb7d2fab4d021637c0c58a3
 
 COCOAPODS: 1.11.3

ios/Runner.xcodeproj/project.pbxproj

@@ -340,7 +340,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 9.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				SDKROOT = iphoneos;
 				SUPPORTED_PLATFORMS = iphoneos;
@@ -417,7 +417,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 9.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
 				MTL_ENABLE_DEBUG_INFO = YES;
 				ONLY_ACTIVE_ARCH = YES;
 				SDKROOT = iphoneos;
@@ -466,7 +466,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 9.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				SDKROOT = iphoneos;
 				SUPPORTED_PLATFORMS = iphoneos;

lib/entities/todo.dart

@@ -23,7 +23,7 @@ class Todo {
 
   factory Todo.fromMap(Map<String, dynamic> json) => Todo(
         content: json["content"],
-        isComplete: json["isComplete"],
+        isComplete: json["isComplete"] ?? false,
         id: json["\u0024id"],
         createdAt: DateTime.parse(json["\u0024createdAt"]),
         updatedAt: DateTime.parse(json["\u0024updatedAt"]),

lib/routes/landing.dart

@@ -1,8 +1,13 @@
+import 'package:appwrite/appwrite.dart';
+import 'package:demo_todo_with_flutter/utilities.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_svg/flutter_svg.dart';
 
+import '../services/appwrite.dart';
+import '../services/auth.dart';
 import '../widgets/animated_icon_button.dart';
 import 'auth.dart';
+import 'todos.dart';
 
 class Landing extends StatelessWidget {
   const Landing({Key? key}) : super(key: key);
@@ -92,10 +97,25 @@ class Landing extends StatelessWidget {
               ),
               const SizedBox(height: spacing),
               ElevatedButton(
-                onPressed: () {
-                  Navigator.push(
-                    context,
-                    MaterialPageRoute(builder: (context) => const Auth()),
+                onPressed: () async {
+                  final navigator = Navigator.of(context);
+                  final messenger = ScaffoldMessenger.of(context);
+                  await Appwrite.instance.initialize();
+                  final authService = AuthService();
+                  Widget nextRoute = const Auth();
+
+                  try {
+                    await authService.getUser();
+                    nextRoute = const Todos();
+                  } on AppwriteException catch (e) {
+                    if (e.code == 0) {
+                      messenger.showSnackBar(createErrorSnackBar(e.message));
+                      return;
+                    }
+                  }
+
+                  navigator.push(
+                    MaterialPageRoute(builder: (context) => nextRoute),
                   );
                 },
                 child: const Text('Get Started'),

lib/routes/todos.dart

@@ -1,3 +1,4 @@
+import 'package:appwrite/appwrite.dart';
 import 'package:demo_todo_with_flutter/utilities.dart';
 import 'package:flutter/material.dart';
 
@@ -48,19 +49,19 @@ class _TodosState extends State<Todos> {
   void submitTodo() async {
     if (inputController.text.isEmpty || isLoading) return;
     final messenger = ScaffoldMessenger.of(context);
-    try {
-      final newTodo = await todosService.create(content: inputController.text);
-      inputController.text = '';
-      setState(() {
-        todos.add(newTodo);
-      });
-    } catch (e) {
+    final newTodo = Todo(
+      content: inputController.text,
+      id: ID.unique(),
+    );
+    todosService.create(todo: newTodo).catchError((e) {
       messenger.showSnackBar(createErrorSnackBar(e.toString()));
-    } finally {
-      setState(() {
-        isLoading = false;
-      });
-    }
+      todos.remove(newTodo);
+    });
+    inputController.text = '';
+    setState(() {
+      todos.add(newTodo);
+      isLoading = false;
+    });
   }
 
   @override
@@ -161,43 +162,40 @@ class _TodosState extends State<Todos> {
                           });
                           final messenger = ScaffoldMessenger.of(context);
                           todos[index].isComplete = !todos[index].isComplete;
-                          try {
-                            final updated =
-                                await todosService.update(todo: todos[index]);
-                            setState(() {
-                              todos[index] = updated;
-                            });
-                          } catch (e) {
-                            // restore value
-                            todos[index].isComplete = !todos[index].isComplete;
-                            messenger.showSnackBar(
-                                createErrorSnackBar(e.toString()));
-                          } finally {
-                            setState(() {
-                              isLoading = false;
-                            });
-                          }
+                          todosService.update(todo: todos[index]).catchError(
+                            (e) {
+                              // restore value
+                              setState(() {
+                                todos[index].isComplete =
+                                    !todos[index].isComplete;
+                              });
+                              messenger.showSnackBar(
+                                  createErrorSnackBar(e.toString()));
+                            },
+                          );
+
+                          setState(() {
+                            isLoading = false;
+                          });
                         },
                         delete: () async {
                           setState(() {
                             isLoading = true;
                           });
                           final messenger = ScaffoldMessenger.of(context);
-                          try {
-                            await todosService.delete(id: todos[index].id);
+                          final todo = todos[index];
+                          todosService.delete(id: todo.id).catchError((e) {
+                            // restore value
                             setState(() {
-                              todos.removeAt(index);
+                              todos.insert(index, todo);
                             });
-                          } catch (e) {
-                            // restore value
-                            todos[index].isComplete = !todos[index].isComplete;
                             messenger.showSnackBar(
                                 createErrorSnackBar(e.toString()));
-                          } finally {
-                            setState(() {
-                              isLoading = false;
-                            });
-                          }
+                          });
+                          setState(() {
+                            todos.removeAt(index);
+                            isLoading = false;
+                          });
                         },
                       );
                     },

lib/services/appwrite.dart

@@ -11,10 +11,20 @@ class Appwrite {
     return instance;
   }
 
+  Future<void> initialize() {
+    return client.setOfflinePersistency(
+      status: true,
+      onWriteQueueError: (e) {
+        print(e);
+      },
+    );
+  }
+
   Appwrite._internal() {
     client = Client()
         .setEndpoint(constants.appwriteEndpoint)
         .setProject(constants.appwriteProjectId)
-        .setSelfSigned(status: constants.appwriteSelfSigned);
+        .setSelfSigned(status: constants.appwriteSelfSigned)
+        .setOfflineCacheSize(2500);
   }
 }

lib/services/auth.dart

@@ -29,4 +29,8 @@ class AuthService {
   Future<void> logout() {
     return _account.deleteSession(sessionId: 'current');
   }
+
+  Future<models.Account> getUser() async {
+    return _account.get();
+  }
 }

lib/services/todos.dart

@@ -15,12 +15,12 @@ class TodosService {
     return documentList.documents.map((d) => Todo.fromMap(d.data)).toList();
   }
 
-  Future<Todo> create({required String content}) async {
+  Future<Todo> create({required Todo todo}) async {
     final document = await _databases.createDocument(
       databaseId: constants.appwriteDatabaseId,
       collectionId: constants.appwriteCollectionId,
-      documentId: ID.unique(),
-      data: {"content": content},
+      documentId: todo.id,
+      data: {"content": todo.content, "isComplete": todo.isComplete},
     );
 
     return Todo.fromMap(document.data);

lib/widgets/todo_list_tile.dart

@@ -44,6 +44,7 @@ class TodoListTile extends StatelessWidget {
                   : TextDecoration.none,
             ),
       ),
+      subtitle: Text(todo.id),
     );
   }
 }