From beb3732b63ee64b13a0c35fa1939507b76405bb1 Mon Sep 17 00:00:00 2001
From: Ivan Murashov <ivan.murashov@u-s.su>
Date: Sun, 20 May 2018 13:47:17 +0300
Subject: [PATCH] Purchase screen

---
 lib/screens/purchase.dart | 102 ++++++++++++++++++++------------------
 1 file changed, 54 insertions(+), 48 deletions(-)

diff --git a/lib/screens/purchase.dart b/lib/screens/purchase.dart
index 7552ec0..5dc4190 100644
--- a/lib/screens/purchase.dart
+++ b/lib/screens/purchase.dart
@@ -69,8 +69,8 @@ class PurchaseScreenState<T> extends BaseState<PurchaseScreen> {
   Widget getScreenContent() {
     List<Widget> widgetList = [];
     widgetList.add(getValueWithDescription(
-        StringsLocalization.buyer(),
-        user['first_name'] == null ? '' : user['first_name']
+      StringsLocalization.buyer(),
+      user['first_name'] == null ? '' : user['first_name']
     ));
     widgetList.add(getValueWithDescription(StringsLocalization.card(), card));
 
@@ -115,14 +115,18 @@ class PurchaseScreenState<T> extends BaseState<PurchaseScreen> {
     widgetList.add(wrapButton(getScreenMargins(36.0), getCompleteButton()));
 
     widgetList.add(wrapButton(
-        getScreenMargins(24.0),
-        getScanButton(
-            context,
-            StringsLocalization.scan(),
-            Resources.getPrimaryColor(app)
-        )
+      getScreenMargins(24.0),
+      getScanButton(
+        context,
+        StringsLocalization.scan(),
+        Resources.getPrimaryColor(app)
+      )
     ));
 
+    if (this.coupons.length == 0) {
+      widgetList.add(new Container(height: 50.0,));
+    }
+
     listView = new ListView(children: widgetList, controller: scrollController);
     return listView;
   }
@@ -178,19 +182,19 @@ class PurchaseScreenState<T> extends BaseState<PurchaseScreen> {
 
   getCompleteButton() {
     return buildRaisedButton(
-        StringsLocalization.completePurchase(), () => onPurchaseClick());
+      StringsLocalization.completePurchase(), () => onPurchaseClick());
   }
 
   Widget getScanButton(BuildContext context, String title, Color textColor) {
     return new Container(
-        height: buttonHeight,
-        child: new FlatButton(
-            child: new Text(title, style: new TextStyle(color: textColor)),
-            onPressed: () => restartScanner()),
-        decoration: new BoxDecoration(
-            border: new Border.all(
-                color: Resources.getButtonColor(app), width: 1.0),
-            borderRadius: new BorderRadius.all(new Radius.circular(4.0))));
+      height: buttonHeight,
+      child: new FlatButton(
+        child: new Text(title, style: new TextStyle(color: textColor)),
+        onPressed: () => restartScanner()),
+      decoration: new BoxDecoration(
+        border: new Border.all(
+          color: Resources.getButtonColor(app), width: 1.0),
+        borderRadius: new BorderRadius.all(new Radius.circular(4.0))));
   }
 
   @override
@@ -208,8 +212,8 @@ class PurchaseScreenState<T> extends BaseState<PurchaseScreen> {
     return new TextField(
       keyboardType: TextInputType.number,
       decoration: new InputDecoration.collapsed(
-          hintText: getHintString(),
-          hintStyle: new TextStyle(color: greyTextColor, fontSize: 16.0)),
+        hintText: getHintString(),
+        hintStyle: new TextStyle(color: greyTextColor, fontSize: 16.0)),
       controller: controller,
       focusNode: sumFocusNode,
       onSubmitted: (String text) {
@@ -253,10 +257,10 @@ class PurchaseScreenState<T> extends BaseState<PurchaseScreen> {
   // TODO: Переделать, если потребуется
   String _cleanupNumber(String text) {
     String tmp = text
-        .replaceAll(' ', '')
-        .replaceAll('-', '')
-        .replaceAll(',', '.')
-        .replaceAll('..', '.');
+      .replaceAll(' ', '')
+      .replaceAll('-', '')
+      .replaceAll(',', '.')
+      .replaceAll('..', '.');
 
     while (tmp.indexOf('..') != -1) {
       tmp = tmp.replaceAll('..', '.');
@@ -293,28 +297,28 @@ class PurchaseScreenState<T> extends BaseState<PurchaseScreen> {
     helper.getCurrency().then((currency) {
       print(currency.toString());
       showDialog(
-          context: context,
-          child: new AlertDialog(
-              title: new Text(StringsLocalization.confirmation()),
-              content:
-              new Text(
-                StringsLocalization.confirmPurchase(val, currency)
-              ),
-              actions: <Widget>[
-                new FlatButton(
-                  child: new Text(StringsLocalization.no()),
-                  onPressed: () {
-                    Navigator.of(context).pop();
-                  },
-                ),
-                new FlatButton(
-                  child: new Text(StringsLocalization.yes()),
-                  onPressed: () {
-                    Navigator.of(context).pop();
-                    purchase(val);
-                  },
-                )
-              ]));
+        context: context,
+        child: new AlertDialog(
+          title: new Text(StringsLocalization.confirmation()),
+          content:
+          new Text(
+            StringsLocalization.confirmPurchase(val, currency)
+          ),
+          actions: <Widget>[
+            new FlatButton(
+              child: new Text(StringsLocalization.no()),
+              onPressed: () {
+                Navigator.of(context).pop();
+              },
+            ),
+            new FlatButton(
+              child: new Text(StringsLocalization.yes()),
+              onPressed: () {
+                Navigator.of(context).pop();
+                purchase(val);
+              },
+            )
+          ]));
     });
   }
 
@@ -425,7 +429,7 @@ class PurchaseScreenState<T> extends BaseState<PurchaseScreen> {
       this.loyalty = '${user['discount']}%';
     } else {
       double loyaltyVal = (double.parse(bonuses['amount_to_bonus'][1]) /
-          bonuses['amount_to_bonus'][0]) * 100;
+        bonuses['amount_to_bonus'][0]) * 100;
       this.loyalty = '${loyaltyVal.toStringAsFixed(0)}%';
     }
 
@@ -448,6 +452,8 @@ class PurchaseScreenState<T> extends BaseState<PurchaseScreen> {
   // TODO: Удалить дублирующийся код.
   void buildFocusNode() {
 
+    var pos = this.coupons.length > 0 ? 150.0 : 100.0;
+
     sumFocusNode.addListener(() {
       setState(() {
 
@@ -456,7 +462,7 @@ class PurchaseScreenState<T> extends BaseState<PurchaseScreen> {
         }
 
         if (sumFocusNode.hasFocus) {
-          scrollController.animateTo(150.0, duration: new Duration(seconds: 1), curve: Curves.ease);
+          scrollController.animateTo(pos, duration: new Duration(seconds: 1), curve: Curves.ease);
         }
 
       });
@@ -470,7 +476,7 @@ class PurchaseScreenState<T> extends BaseState<PurchaseScreen> {
         }
 
         if (bonusFocusNode.hasFocus) {
-          scrollController.animateTo(150.0, duration: new Duration(seconds: 1), curve: Curves.ease);
+          scrollController.animateTo(pos, duration: new Duration(seconds: 1), curve: Curves.ease);
         }
 
       });