feat: Add routeings for the different FlutterFire authentication states

Author: md-weber

lib/app/routes/router_config.dart

@@ -0,0 +1,78 @@
+import 'package:community_app/counter/view/counter_page.dart';
+import 'package:firebase_auth/firebase_auth.dart'
+    show ActionCodeSettings, FirebaseAuth;
+import 'package:firebase_ui_auth/firebase_ui_auth.dart';
+import 'package:flutter/cupertino.dart';
+import 'package:go_router/go_router.dart';
+
+final providers = <AuthProvider>[
+  EmailAuthProvider(),
+  EmailLinkAuthProvider(
+    actionCodeSettings: ActionCodeSettings(
+      url: 'http://localhost',
+      handleCodeInApp: true,
+      androidMinimumVersion: '1',
+      androidPackageName: 'dev.flutterexplained.community_app.dev',
+      iOSBundleId: 'dev.flutterexplained.community_app.dev',
+    ),
+  ),
+];
+
+final GoRouter routerConfig = GoRouter(
+  routes: <RouteBase>[
+    GoRoute(
+      path: '/',
+      builder: (BuildContext context, GoRouterState state) {
+        return FirebaseAuth.instance.currentUser != null
+            ? const CounterPage()
+            : SignInScreen(
+                providers: providers,
+                actions: [
+                  EmailLinkSignInAction((context) {
+                    context.go('/email-link-sign-in');
+                  })
+                ],
+              );
+      },
+    ),
+    GoRoute(
+      path: '/sign-in',
+      builder: (BuildContext context, GoRouterState state) {
+        return SignInScreen(
+          providers: providers,
+          actions: [
+            EmailLinkSignInAction((context) {
+              context.go('/email-link-sign-in');
+            }),
+            AuthStateChangeAction((context, state) {
+              context.go('/profile');
+            })
+          ],
+        );
+      },
+    ),
+    GoRoute(
+      path: '/email-link-sign-in',
+      builder: (context, state) => EmailLinkSignInScreen(
+        actions: [
+          AuthStateChangeAction((context, state) {
+            context.go('/profile');
+          })
+        ],
+      ),
+    ),
+    GoRoute(
+      path: '/profile',
+      builder: (BuildContext context, GoRouterState state) {
+        return ProfileScreen(
+          providers: providers,
+          actions: [
+            SignedOutAction((context) {
+              context.go('/sign-in');
+            })
+          ],
+        );
+      },
+    )
+  ],
+);

lib/app/routes/routes.dart

@@ -0,0 +1 @@
+export './router_config.dart';

lib/app/view/app.dart

@@ -1,4 +1,4 @@
-import 'package:community_app/counter/counter.dart';
+import 'package:community_app/app/routes/router_config.dart';
 import 'package:community_app/l10n/l10n.dart';
 import 'package:flutter/material.dart';
 
@@ -7,7 +7,7 @@ class App extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    return MaterialApp(
+    return MaterialApp.router(
       theme: ThemeData(
         appBarTheme: const AppBarTheme(color: Color(0xFF13B9FF)),
         colorScheme: ColorScheme.fromSwatch(
@@ -16,7 +16,7 @@ class App extends StatelessWidget {
       ),
       localizationsDelegates: AppLocalizations.localizationsDelegates,
       supportedLocales: AppLocalizations.supportedLocales,
-      home: const CounterPage(),
+      routerConfig: routerConfig,
     );
   }
 }