Получение информации о пользователе, разные исправления

lib/purchase.dart

@@ -9,12 +9,41 @@ import 'purchase_success.dart';
 
 /// Экран проведения покупки.
 class PurchaseScreen extends StatefulWidget {
-  @override State createState() => new PurchaseScreenState<PurchaseScreen>();
+
+  PurchaseScreen(this.response, this.card);
+
+  Map response;
+  String card;
+
+  @override State createState() => new PurchaseScreenState<PurchaseScreen>(response, card);
 }
 
-class PurchaseScreenState<T> extends BaseState<T> {
+class PurchaseScreenState<T> extends BaseState<PurchaseScreen> {
 
+  PurchaseScreenState(Map user, String card) {
+    this.user = user;
+    this.card = card;
+    getLoyality(user['loyalty_url']);
+  }
+
+  Map user;
+  String card;
   String integerPart = '', fractionalPart = '';
+  String loyality = '';
+
+  @override Widget getScreenContent() {
+    return new Container(height: 412.0,
+        child: new ListView(reverse: true, children: <Widget>[
+          new Column(children: <Widget>[
+            getValueWithTitle('ФИО', user['first_name']),
+            getValueWithTitle('Карта', card),
+            getValueWithTitle('Вознаграждение', loyality),
+            getHintLabel(),
+            getDecoratedTextWidget(),
+            buildButton(new EdgeInsets.only(top: 36.0, left: buttonVerticalMargin, right: buttonVerticalMargin), buildRaisedButton(context, 'ЗАВЕРШИТЬ ПОКУПКУ', () => _purchase(context))),
+            buildButton(new EdgeInsets.only(top: 24.0, left: buttonVerticalMargin, right: buttonVerticalMargin), buildFlatButton(context, 'СКАНИРОВАТЬ', primaryColor))])
+        ].reversed.toList()));
+  }
 
   @override String getTitle() {
     return "Проведение покупки";
@@ -25,24 +54,7 @@ class PurchaseScreenState<T> extends BaseState<T> {
   }
 
   @overide getMenuButtons(BuildContext context) {
-    return <Widget>[
-      new getFaqButton(), 
-      new getLogoutButton()
-    ];
-  }
-
-  @override Widget getScreenContent() {
-    return new Container(height: 412.0,
-        child: new ListView(reverse: true, children: <Widget>[
-          new Column(children: <Widget>[
-            getValueWithTitle('ФИО', 'Знаменитый Рокер Паук'),
-            getValueWithTitle('Карта', 'B0399900702'),
-            getValueWithTitle('Вознаграждение', '100%'),
-            getHintLabel(),
-            getDecoratedTextWidget(),
-            buildButton(new EdgeInsets.only(top: 36.0, left: buttonVerticalMargin, right: buttonVerticalMargin), buildRaisedButton(context, 'ЗАВЕРШИТЬ ПОКУПКУ', () => _purchase(context))),
-            buildButton(new EdgeInsets.only(top: 24.0, left: buttonVerticalMargin, right: buttonVerticalMargin), buildFlatButton(context, 'СКАНИРОВАТЬ', primaryColor))])
-        ].reversed.toList()));
+    return <Widget>[getFaqButton(), getLogoutButton()];
   }
 
   @override Color getTextFilledBackground() {
@@ -71,6 +83,35 @@ class PurchaseScreenState<T> extends BaseState<T> {
     });
   }
 
+  getLoyality(String url) {
+
+     var headers = {
+        'DM-Authorization': 'dmapptoken 9fec83cdca38c357e6b65dbb17514cdd36bf2a08',
+        'Authorization': 'dmtoken ${token}'
+      };
+
+      httpClient.get(url, headers: headers).then((response) {
+        
+        print(response.body);
+        
+        Map bonuses = JSON.decode(response.body);
+        String type = bonuses['type'];
+
+        setState(() {
+          if (type == 'amount') {
+            this.loyality = user['discount'];
+          } else {
+            List bonusToAmount = bonuses['bonus_to_amount'];
+            this.loyality = (bonusToAmount[1].toInt() / bonusToAmount[0].toInt()  ).toString();
+          }
+        });
+
+      }).catchError((error) {
+        print(error.toString());
+      });
+
+  }
+
   _buildSum() {
     String temporaryInteger = integerPart;
     String temporaryFractional = fractionalPart;
@@ -84,6 +125,7 @@ class PurchaseScreenState<T> extends BaseState<T> {
 
   _purchase(BuildContext context) {
     String val = _buildSum();
+    print(val);
     showDialog(context: context, child: new AlertDialog(
       title: new Text('Подтверждение'),
       content: new Text('Вы подтверждаете покупку на ${val} руб?'),
@@ -97,7 +139,8 @@ class PurchaseScreenState<T> extends BaseState<T> {
         new FlatButton(
           child: new Text('Да'),
           onPressed: () {
-            pushRoute(context, new PurchaseSuccessScreen(val));
+            Navigator.of(context).pop();
+            pushRoute(context, new PurchaseSuccessScreen(val, user['first_name']));
           },
         )
       ]));