✨ Navigation

lib/auth.dart

@@ -0,0 +1,121 @@
+import 'dart:io';
+
+import 'package:flutter/material.dart';
+import 'package:flutter_secure_storage/flutter_secure_storage.dart';
+import 'package:webview_flutter/webview_flutter.dart';
+import 'package:oauth2/oauth2.dart' as oauth2;
+
+class LoginPage extends StatelessWidget {
+  const LoginPage({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('Goatworks Login'),
+      ),
+      body: Center(
+        child: ElevatedButton(
+          onPressed: () async {
+            await _login(context);
+          },
+          child: const Text('Login with Goatpass'),
+        ),
+      ),
+    );
+  }
+
+  Future<void> _login(BuildContext context) async {
+    final authorizationEndpoint =
+        Uri.parse('https://id.smartsheep.studio/auth/o/connect');
+    final tokenEndpoint =
+        Uri.parse('https://id.smartsheep.studio/api/auth/token');
+    final userinfoEndpoint =
+        Uri.parse('https://id.smartsheep.studio/api/users/me');
+    final redirectUrl = Uri.parse('goatagent://auth');
+
+    const clientId = "goatagent";
+    const clientSecret = "_F4%q2Eea3";
+
+    const storage = FlutterSecureStorage();
+    const storageKey = "identity";
+
+    Future<oauth2.Client> createClient() async {
+      // If logged in
+      if (await storage.containsKey(key: storageKey)) {
+        var credentials = oauth2.Credentials.fromJson(
+            storage.read(key: storageKey) as String);
+        return oauth2.Client(credentials,
+            identifier: clientId, secret: clientSecret);
+      }
+
+      var grant = oauth2.AuthorizationCodeGrant(
+        clientId,
+        authorizationEndpoint,
+        tokenEndpoint,
+        secret: clientSecret,
+        basicAuth: false,
+      );
+
+      var authorizationUrl = grant.getAuthorizationUrl(redirectUrl);
+
+      if (Platform.isAndroid || Platform.isIOS) {
+        // Let Goatpass know it is embed in an app
+        authorizationUrl.replace(
+            queryParameters: {"embedded": "yes"}
+              ..addAll(authorizationUrl.queryParameters));
+
+        // Use WebView to get authorization url
+        var responseUrl = await Navigator.of(context).push(MaterialPageRoute(
+          builder: (context) => AuthorizationPage(authorizationUrl),
+        ));
+
+        var responseUri = Uri.parse(responseUrl);
+        return await grant
+            .handleAuthorizationResponse(responseUri.queryParameters);
+      } else {
+        // TODO Use system browser to get url
+        throw UnimplementedError("unsupported platform");
+      }
+    }
+
+    try {
+      var client = await createClient();
+      var response = await client.read(userinfoEndpoint);
+
+      print('Logged in: $response');
+    } catch (e) {
+      print(e);
+    }
+  }
+}
+
+class AuthorizationPage extends StatelessWidget {
+  final Uri authorizationUrl;
+
+  const AuthorizationPage(this.authorizationUrl, {super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('Connect with Goatpass'),
+      ),
+      body: WebViewWidget(
+        controller: WebViewController()
+          ..setJavaScriptMode(JavaScriptMode.unrestricted)
+          ..setBackgroundColor(Colors.indigo)
+          ..setNavigationDelegate(NavigationDelegate(
+            onNavigationRequest: (NavigationRequest request) {
+              if (request.url.startsWith('goatagent://auth')) {
+                Navigator.of(context).pop(request.url);
+                return NavigationDecision.prevent;
+              }
+              return NavigationDecision.navigate;
+            },
+          ))
+          ..loadRequest(authorizationUrl),
+      ),
+    );
+  }
+}

lib/firebase.dart

@@ -0,0 +1,31 @@
+import 'dart:ui';
+
+import 'package:firebase_crashlytics/firebase_crashlytics.dart';
+import 'package:firebase_messaging/firebase_messaging.dart';
+import 'package:firebase_core/firebase_core.dart';
+import 'package:flutter/material.dart';
+import 'firebase_options.dart';
+
+void initializeFirebase() async {
+  await Firebase.initializeApp(
+    options: DefaultFirebaseOptions.currentPlatform,
+  );
+
+  FlutterError.onError = (errorDetails) {
+    FirebaseCrashlytics.instance.recordFlutterFatalError(errorDetails);
+  };
+  PlatformDispatcher.instance.onError = (error, stack) {
+    FirebaseCrashlytics.instance.recordError(error, stack, fatal: true);
+    return true;
+  };
+}
+
+Future<String?> initializeFirebaseMessaging() async {
+  try {
+    final fcmToken = await FirebaseMessaging.instance.getToken();
+    return fcmToken;
+  } catch (e) {
+    print("failed to setup firebase messaging: $e");
+    return null;
+  }
+}

lib/firebase_options.dart

@@ -0,0 +1,81 @@
+// File generated by FlutterFire CLI.
+// ignore_for_file: lines_longer_than_80_chars, avoid_classes_with_only_static_members
+import 'package:firebase_core/firebase_core.dart' show FirebaseOptions;
+import 'package:flutter/foundation.dart'
+    show defaultTargetPlatform, kIsWeb, TargetPlatform;
+
+/// Default [FirebaseOptions] for use with your Firebase apps.
+///
+/// Example:
+/// ```dart
+/// import 'firebase_options.dart';
+/// // ...
+/// await Firebase.initializeApp(
+///   options: DefaultFirebaseOptions.currentPlatform,
+/// );
+/// ```
+class DefaultFirebaseOptions {
+  static FirebaseOptions get currentPlatform {
+    if (kIsWeb) {
+      return web;
+    }
+    switch (defaultTargetPlatform) {
+      case TargetPlatform.android:
+        return android;
+      case TargetPlatform.iOS:
+        return ios;
+      case TargetPlatform.macOS:
+        return macos;
+      case TargetPlatform.windows:
+        throw UnsupportedError(
+          'DefaultFirebaseOptions have not been configured for windows - '
+          'you can reconfigure this by running the FlutterFire CLI again.',
+        );
+      case TargetPlatform.linux:
+        throw UnsupportedError(
+          'DefaultFirebaseOptions have not been configured for linux - '
+          'you can reconfigure this by running the FlutterFire CLI again.',
+        );
+      default:
+        throw UnsupportedError(
+          'DefaultFirebaseOptions are not supported for this platform.',
+        );
+    }
+  }
+
+  static const FirebaseOptions web = FirebaseOptions(
+    apiKey: 'AIzaSyCjTtCsk3Jo98gDiU2Zh8hX2Y-r2CCsT6g',
+    appId: '1:659822066072:web:2fbe2e4dc1186e00c013ed',
+    messagingSenderId: '659822066072',
+    projectId: 'smartsheep-hydrogen',
+    authDomain: 'smartsheep-hydrogen.firebaseapp.com',
+    storageBucket: 'smartsheep-hydrogen.appspot.com',
+    measurementId: 'G-8HVJ5TVQG8',
+  );
+
+  static const FirebaseOptions android = FirebaseOptions(
+    apiKey: 'AIzaSyBLPaAK4CVW9umXIdUoGOGHO42jKnwZkKo',
+    appId: '1:659822066072:android:39e699282c97a7cfc013ed',
+    messagingSenderId: '659822066072',
+    projectId: 'smartsheep-hydrogen',
+    storageBucket: 'smartsheep-hydrogen.appspot.com',
+  );
+
+  static const FirebaseOptions ios = FirebaseOptions(
+    apiKey: 'AIzaSyBQB4u2KKe1P5jMG_zWGiUFtpcjQKhG3jY',
+    appId: '1:659822066072:ios:90dff099ef47fc8fc013ed',
+    messagingSenderId: '659822066072',
+    projectId: 'smartsheep-hydrogen',
+    storageBucket: 'smartsheep-hydrogen.appspot.com',
+    iosBundleId: 'studio.smartsheep.goatagent',
+  );
+
+  static const FirebaseOptions macos = FirebaseOptions(
+    apiKey: 'AIzaSyBQB4u2KKe1P5jMG_zWGiUFtpcjQKhG3jY',
+    appId: '1:659822066072:ios:17efa96a78467043c013ed',
+    messagingSenderId: '659822066072',
+    projectId: 'smartsheep-hydrogen',
+    storageBucket: 'smartsheep-hydrogen.appspot.com',
+    iosBundleId: 'studio.smartsheep.goatagent.RunnerTests',
+  );
+}

lib/layouts/navigation.dart

@@ -0,0 +1,43 @@
+import 'package:flutter/material.dart';
+import 'package:go_router/go_router.dart';
+
+class AgentNavigation extends StatefulWidget {
+  const AgentNavigation({super.key, required this.router});
+
+  final GoRouter router;
+
+  static const items = [
+    NavigationDestination(
+      icon: Icon(Icons.home),
+      label: 'Dashboard',
+    ),
+    NavigationDestination(
+      icon: Icon(Icons.account_circle),
+      label: 'Account',
+    )
+  ];
+
+  static const destinations = ["/", "/account"];
+
+  @override
+  State<AgentNavigation> createState() => _AgentNavigationState();
+}
+
+class _AgentNavigationState extends State<AgentNavigation> {
+  int _selected = 0;
+
+  @override
+  Widget build(BuildContext context) {
+    return NavigationBar(
+      selectedIndex: _selected,
+      labelBehavior: NavigationDestinationLabelBehavior.onlyShowSelected,
+      destinations: AgentNavigation.items,
+      onDestinationSelected: (index) {
+        widget.router.push(AgentNavigation.destinations[index]);
+        setState(() {
+          _selected = index;
+        });
+      },
+    );
+  }
+}

lib/main.dart

@@ -0,0 +1,51 @@
+import 'package:flutter/material.dart';
+import 'package:go_router/go_router.dart';
+import 'package:goatagent/auth.dart';
+import 'package:goatagent/firebase.dart';
+import 'package:goatagent/screens/account.dart';
+import 'package:goatagent/screens/dashboard.dart';
+
+import 'layouts/navigation.dart';
+
+void main() async {
+  WidgetsFlutterBinding.ensureInitialized();
+
+  initializeFirebase();
+
+  runApp(GoatAgent());
+}
+
+class GoatAgent extends StatelessWidget {
+  final _router = GoRouter(
+    navigatorKey: GlobalKey<NavigatorState>(),
+    routes: [
+      GoRoute(path: '/', builder: (context, state) => const DashboardScreen()),
+      GoRoute(
+          path: '/account', builder: (context, state) => const AccountScreen())
+    ],
+  );
+
+  GoatAgent({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp.router(
+      routerConfig: _router,
+      title: 'GoatAgent',
+      theme: ThemeData(
+        colorScheme: ColorScheme.fromSeed(seedColor: Colors.indigo),
+        useMaterial3: true,
+      ),
+      builder: (BuildContext context, Widget? child) {
+        return Overlay(initialEntries: [
+          OverlayEntry(
+              builder: (context) => Scaffold(
+                    body: child,
+                    // bottomNavigationBar: const AgentBottomNavigation()
+                    bottomNavigationBar: AgentNavigation(router: _router),
+                  ))
+        ]);
+      },
+    );
+  }
+}

lib/screens/account.dart

@@ -0,0 +1,15 @@
+import 'package:flutter/material.dart';
+
+class AccountScreen extends StatelessWidget {
+  const AccountScreen({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return const Scaffold(
+      body: Center(
+        child: Text("你好"),
+      ),
+    );
+  }
+
+}

lib/screens/dashboard.dart

@@ -0,0 +1,15 @@
+import 'package:flutter/material.dart';
+
+class DashboardScreen extends StatelessWidget {
+  const DashboardScreen({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return const Scaffold(
+      body: Center(
+        child: Text("你好"),
+      ),
+    );
+  }
+
+}