fix: gorouter improvements (#4)

example/lib/src/configuration/configuration.dart

@@ -15,7 +15,12 @@ final ProductService<MyProduct> productService = ProductService([]);
 FlutterShoppingConfiguration getFlutterShoppingConfiguration() =>
     FlutterShoppingConfiguration(
       // (REQUIRED): Shop builder configuration
-      shopBuilder: (BuildContext context) => ProductPageScreen(
+      shopBuilder: (
+        BuildContext context,
+        String? initialBuildShopId,
+        String? streetName,
+      ) =>
+          ProductPageScreen(
         configuration: ProductPageConfiguration(
           // (REQUIRED): List of shops that should be displayed
           // If there is only one, make a list with just one shop.
@@ -71,6 +76,9 @@ FlutterShoppingConfiguration getFlutterShoppingConfiguration() =>
             ),
           ),
         ),
+
+        // (OPTIONAL): Initial build shop id that overrides the initialShop
+        initialBuildShopId: initialBuildShopId,
       ),
 
       // (REQUIRED): Shopping cart builder configuration
@@ -128,7 +136,7 @@ FlutterShoppingConfiguration getFlutterShoppingConfiguration() =>
                 color: Colors.white,
               ),
               onPressed: () {
-                context.go(FlutterShoppingRoutes.shop);
+                context.go(FlutterShoppingPathRoutes.shop);
               },
             ),
           ),

example/lib/src/ui/homepage.dart

@@ -12,7 +12,7 @@ class Homepage extends StatelessWidget {
             label: const Text("1"),
             child: IconButton(
               icon: const Icon(Icons.shopping_cart_outlined, size: 50),
-              onPressed: () => context.go(FlutterShoppingRoutes.shop),
+              onPressed: () => context.go(FlutterShoppingPathRoutes.shop),
             ),
           ),
         ),

lib/src/config/default_order_detail_configuration.dart

@@ -63,7 +63,7 @@ OrderDetailConfiguration getDefaultOrderDetailConfiguration(
         title: const Text("Order Details"),
         leading: IconButton(
           icon: const Icon(Icons.close, color: Colors.white),
-          onPressed: () => context.go(FlutterShoppingRoutes.shoppingCart),
+          onPressed: () => context.go(FlutterShoppingPathRoutes.shoppingCart),
         ),
       ),
     );

lib/src/config/flutter_shopping_configuration.dart

@@ -15,7 +15,11 @@ class FlutterShoppingConfiguration {
   });
 
   /// Builder for the shop/product page.
-  final Widget Function(BuildContext context) shopBuilder;
+  final Widget Function(
+    BuildContext context,
+    String? initialBuildShopId,
+    String? streetName,
+  ) shopBuilder;
 
   /// Builder for the shopping cart page.
   final Widget Function(BuildContext context) shoppingCartBuilder;

lib/src/routes.dart

@@ -1,5 +1,23 @@
-/// All the routes used in the user-story.
-mixin FlutterShoppingRoutes {
+/// All the name routes used in the user-story.
+mixin FlutterShoppingNameRoutes {
+  /// The shop name route.
+  static const String shop = "shop";
+
+  /// The shopping cart name route.
+  static const String shoppingCart = "shoppingcart";
+
+  /// The order details name route.
+  static const String orderDetails = "orderdetails";
+
+  /// The order success name route.
+  static const String orderSuccess = "ordersuccess";
+
+  /// The order failed name route.
+  static const String orderFailed = "orderfailed";
+}
+
+/// All the path routes used in the user-story.
+mixin FlutterShoppingPathRoutes {
   /// The shop page route.
   static const String shop = "/shop";
 

lib/src/user_stores/flutter_shopping_userstory_go_router.dart

@@ -1,8 +1,6 @@
-import "package:flutter/material.dart";
 import "package:flutter_order_details/flutter_order_details.dart";
 import "package:flutter_shopping/flutter_shopping.dart";
 import "package:flutter_shopping/src/config/default_order_detail_configuration.dart";
-import "package:flutter_shopping/src/go_router.dart";
 import "package:flutter_shopping/src/widgets/default_order_failed_widget.dart";
 import "package:flutter_shopping/src/widgets/default_order_succes_widget.dart";
 import "package:go_router/go_router.dart";
@@ -13,85 +11,41 @@ List<GoRoute> getShoppingStoryRoutes({
 }) =>
     <GoRoute>[
       GoRoute(
-        name: "shop",
-        path: FlutterShoppingRoutes.shop,
-        pageBuilder: (BuildContext context, GoRouterState state) =>
-            buildScreenWithFadeTransition(
-          context: context,
-          state: state,
-          child: configuration.shopBuilder(context),
+        name: FlutterShoppingNameRoutes.shop,
+        path: FlutterShoppingPathRoutes.shop,
+        builder: (context, state) => configuration.shopBuilder(
+          context,
+          state.uri.queryParameters["id"],
+          state.uri.queryParameters["street"],
         ),
       ),
       GoRoute(
-        name: "shoppingCart",
-        path: FlutterShoppingRoutes.shoppingCart,
-        pageBuilder: (BuildContext context, GoRouterState state) =>
-            buildScreenWithFadeTransition(
-          context: context,
-          state: state,
-          child: configuration.shoppingCartBuilder(context),
-        ),
+        name: FlutterShoppingNameRoutes.shoppingCart,
+        path: FlutterShoppingPathRoutes.shoppingCart,
+        builder: (context, state) => configuration.shoppingCartBuilder(context),
       ),
       GoRoute(
-        name: "orderDetails",
-        path: FlutterShoppingRoutes.orderDetails,
-        pageBuilder: (BuildContext context, GoRouterState state) {
-          if (configuration.orderDetailsBuilder != null) {
-            return buildScreenWithFadeTransition(
-              context: context,
-              state: state,
-              child: configuration.orderDetailsBuilder!(context),
-            );
-          }
-
-          return buildScreenWithFadeTransition(
-            context: context,
-            state: state,
-            child: OrderDetailScreen(
-              configuration:
-                  getDefaultOrderDetailConfiguration(context, configuration),
-            ),
-          );
-        },
+        name: FlutterShoppingNameRoutes.orderDetails,
+        path: FlutterShoppingPathRoutes.orderDetails,
+        builder: (context, state) => configuration.orderDetailsBuilder != null
+            ? configuration.orderDetailsBuilder!(context)
+            : OrderDetailScreen(
+                configuration:
+                    getDefaultOrderDetailConfiguration(context, configuration),
+              ),
       ),
       GoRoute(
-        name: "orderSuccess",
-        path: FlutterShoppingRoutes.orderSuccess,
-        pageBuilder: (BuildContext context, GoRouterState state) {
-          if (configuration.orderSuccessBuilder != null) {
-            return buildScreenWithFadeTransition(
-              context: context,
-              state: state,
-              child: configuration.orderSuccessBuilder!(context),
-            );
-          }
-
-          return buildScreenWithFadeTransition(
-            context: context,
-            state: state,
-            child: DefaultOrderSucces(configuration: configuration),
-          );
-        },
+        name: FlutterShoppingNameRoutes.orderSuccess,
+        path: FlutterShoppingPathRoutes.orderSuccess,
+        builder: (context, state) => configuration.orderSuccessBuilder != null
+            ? configuration.orderSuccessBuilder!(context)
+            : DefaultOrderSucces(configuration: configuration),
       ),
       GoRoute(
-        name: "orderFailed",
-        path: FlutterShoppingRoutes.orderFailed,
-        pageBuilder: (BuildContext context, GoRouterState state) {
-          if (configuration.orderFailedBuilder != null) {
-            return buildScreenWithFadeTransition(
-              context: context,
-              state: state,
-              child: configuration.orderFailedBuilder!(context),
-            );
-          }
-
-          return buildScreenWithFadeTransition(
-            context: context,
-            state: state,
-            child: DefaultOrderFailed(
-              configuration: configuration,
-            ),
-          );
-        },
+        name: FlutterShoppingNameRoutes.orderFailed,
+        path: FlutterShoppingPathRoutes.orderFailed,
+        builder: (context, state) => configuration.orderFailedBuilder != null
+            ? configuration.orderFailedBuilder!(context)
+            : DefaultOrderFailed(configuration: configuration),
       ),
     ];

lib/src/user_stores/flutter_shopping_userstory_navigation.dart

@@ -26,9 +26,9 @@ Future<void> onCompleteOrderDetails(
   }
 
   if (succesful) {
-    go(FlutterShoppingRoutes.orderSuccess);
+    go(FlutterShoppingPathRoutes.orderSuccess);
   } else {
-    go(FlutterShoppingRoutes.orderFailed);
+    go(FlutterShoppingPathRoutes.orderFailed);
   }
 }
 
@@ -39,7 +39,7 @@ Future<void> onCompleteOrderDetails(
 void onCompleteShoppingCart(
   BuildContext context,
 ) {
-  context.go(FlutterShoppingRoutes.orderDetails);
+  context.go(FlutterShoppingPathRoutes.orderDetails);
 }
 
 /// Default on complete product page function.
@@ -49,5 +49,5 @@ void onCompleteShoppingCart(
 void onCompleteProductPage(
   BuildContext context,
 ) {
-  context.go(FlutterShoppingRoutes.shoppingCart);
+  context.go(FlutterShoppingPathRoutes.shoppingCart);
 }