#70 use different main files for configuration

.cirrus.yml

@@ -44,7 +44,7 @@ fe_build_ios_task:
       image: catalina-flutter
   build_script:
     - cd frontend
-    - flutter build ios --release --no-codesign
+    - flutter build ios --release --no-codesign -t lib/main_prod.dart
   iOS_app_artifacts:
     path: ./frontend/build/ios/iphoneos/Runner.app
 
@@ -56,7 +56,7 @@ fe_build_android_task:
     - "FE: test"
   build_script:
     - cd frontend
-    - flutter build appbundle
+    - flutter build appbundle -t lib/main_prod.dart
   android_app_artifacts:
     path: ./frontend/build/app/outputs/bundle/release/app-release.aab
 

frontend/lib/app.dart

@@ -1,16 +1,35 @@
 import 'package:flutter/material.dart';
+import 'package:graphql_flutter/graphql_flutter.dart';
 
 import 'home/home_page.dart';
+import 'configuration.dart';
 
 class App extends StatelessWidget {
+  const App({Key key}) : super(key: key);
+
   @override
   Widget build(BuildContext context) {
-    return MaterialApp(
-        title: 'Digitale Ehrenamtskarte',
-        theme: ThemeData(
-            primarySwatch: Colors.blue,
-            brightness: Brightness.light,
-            visualDensity: VisualDensity.adaptivePlatformDensity),
-        home: HomePage(title: "Digitale Ehrenamtskarte"));
+    final config = Configuration.of(context);
+    final client = ValueNotifier(
+      GraphQLClient(
+        cache: InMemoryCache(),
+        link: Link.from([
+          HttpLink(
+            uri: config.graphqlUrl,
+          )
+        ]),
+      ),
+    );
+    final theme = ThemeData(
+        primarySwatch: Colors.blue,
+        brightness: Brightness.light,
+        visualDensity: VisualDensity.adaptivePlatformDensity);
+    return GraphQLProvider(
+        child: CacheProvider(
+            child: MaterialApp(
+                title: 'Digitale Ehrenamtskarte',
+                theme: theme,
+                home: HomePage(title: "Digitale Ehrenamtskarte"))),
+        client: client);
   }
 }

frontend/lib/configuration.dart

@@ -0,0 +1,23 @@
+import 'package:flutter/widgets.dart';
+
+class Configuration extends InheritedWidget {
+  final String mapStyleUrl;
+  final String graphqlUrl;
+
+  const Configuration({
+    Key key,
+    @required this.mapStyleUrl,
+    @required this.graphqlUrl,
+    @required Widget child,
+  })  : assert(mapStyleUrl != null),
+        assert(graphqlUrl != null),
+        super(key: key, child: child);
+
+  @override
+  bool updateShouldNotify(covariant Configuration oldWidget) =>
+      mapStyleUrl != oldWidget.mapStyleUrl ||
+      graphqlUrl != oldWidget.graphqlUrl;
+
+  static Configuration of(BuildContext context) =>
+      context.dependOnInheritedWidgetOfExactType<Configuration>();
+}

frontend/lib/main_local.dart

@@ -0,0 +1,12 @@
+import 'package:ehrenamtskarte/configuration.dart';
+import 'package:flutter/material.dart';
+
+import 'app.dart';
+
+Future<void> main() async {
+  WidgetsFlutterBinding.ensureInitialized();
+  runApp(Configuration(
+      mapStyleUrl: "https://vector.ehrenamtskarte.app/style.json",
+      graphqlUrl: "http://10.0.2.2:7000",
+      child: App()));
+}

frontend/lib/main_prod.dart

@@ -0,0 +1,12 @@
+import 'package:ehrenamtskarte/configuration.dart';
+import 'package:flutter/material.dart';
+
+import 'app.dart';
+
+Future<void> main() async {
+  WidgetsFlutterBinding.ensureInitialized();
+  runApp(Configuration(
+      mapStyleUrl: "https://vector.ehrenamtskarte.app/style.json",
+      graphqlUrl: "https://api.ehrenamtskarte.app",
+      child: App()));
+}

frontend/lib/map/map/map.dart

@@ -5,6 +5,8 @@ import 'dart:math';
 import 'package:flutter/material.dart';
 import 'package:mapbox_gl/mapbox_gl.dart';
 
+import '../../configuration.dart';
+
 typedef void OnFeatureClickCallback(dynamic feature);
 typedef void OnNoFeatureClickCallback();
 
@@ -32,10 +34,11 @@ class _MapState extends State<Map> {
 
   @override
   Widget build(BuildContext context) {
+    final config = Configuration.of(context);
     return new MapboxMap(
       initialCameraPosition: const CameraPosition(
           target: Map.initialLocation, zoom: Map.initialZoomLevel),
-      styleString: "https://vector.ehrenamtskarte.app/style.json",
+      styleString: config.mapStyleUrl,
       myLocationEnabled: widget.myLocationEnabled,
       onMapCreated: (controller) {
         setState(() {