update rate

lib/pages/discount/discount_editor.dart

@@ -1,7 +1,9 @@
 import 'package:fcs/domain/entities/discount.dart';
 import 'package:fcs/helpers/theme.dart';
 import 'package:fcs/localization/app_translations.dart';
+import 'package:fcs/pages/discount/model/discount_model.dart';
 import 'package:fcs/pages/main/util.dart';
+import 'package:fcs/pages/rates/model/shipment_rate_model.dart';
 import 'package:fcs/pages/widgets/display_text.dart';
 import 'package:fcs/pages/widgets/input_text.dart';
 import 'package:fcs/pages/widgets/progress.dart';
@@ -9,6 +11,7 @@ import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_icons/flutter_icons.dart';
 import 'package:font_awesome_flutter/font_awesome_flutter.dart';
+import 'package:provider/provider.dart';
 
 class DiscountEditor extends StatefulWidget {
   final Discount discount;
@@ -26,7 +29,7 @@ class _DiscountEditorState extends State<DiscountEditor> {
   TextEditingController _statusController = new TextEditingController();
   TextEditingController _customerController = new TextEditingController();
 
-  bool isNew = false;
+  bool _isNew = false;
 
   @override
   void initState() {
@@ -38,7 +41,7 @@ class _DiscountEditorState extends State<DiscountEditor> {
       _statusController.text = _discount.status;
       _customerController.text = 'Ko Nyi';
     } else {
-      isNew = true;
+      _isNew = true;
       _customerController.text = '';
     }
   }
@@ -49,17 +52,20 @@ class _DiscountEditorState extends State<DiscountEditor> {
         labelTextKey: 'discount.code',
         iconData: FontAwesomeIcons.algolia,
         controller: _codeController);
+
     final nameBox = InputText(
         labelTextKey: 'discount.name',
         iconData: Feather.user,
         controller: _customerController);
+
     final amountBox = InputText(
         labelTextKey: 'discount.amount',
         iconData: FontAwesomeIcons.moneyBill,
         controller: _amountController);
+
     final statusBox = DisplayText(
       text: _statusController.text,
-      labelTextKey: getLocalString(context, "discount.status"),
+      labelTextKey: "discount.status",
       iconData: Icons.av_timer,
     );
 
@@ -77,10 +83,15 @@ class _DiscountEditorState extends State<DiscountEditor> {
               onPressed: () => Navigator.of(context).pop(),
             ),
             backgroundColor: primaryColor,
-            actions: <Widget>[],
+            actions: [
+              IconButton(
+                icon: Icon(Icons.delete),
+                onPressed: _delete,
+              )
+            ],
           ),
           body: Padding(
-            padding: const EdgeInsets.only(left: 20.0),
+            padding: const EdgeInsets.all(8.0),
             child: Column(
               children: <Widget>[
                 Expanded(
@@ -98,35 +109,8 @@ class _DiscountEditorState extends State<DiscountEditor> {
                     ],
                   ),
                 ),
-                widget.discount == null
-                    ? Align(
-                        alignment: Alignment.bottomCenter,
-                        child: Center(
-                            child: Container(
-                          width: 250,
-                          child: FlatButton(
-                            child: Text('Add Discount'),
-                            color: primaryColor,
-                            textColor: Colors.white,
-                            onPressed: () {
-                              Navigator.pop(context);
-                            },
-                          ),
-                        )))
-                    : Align(
-                        alignment: Alignment.bottomCenter,
-                        child: Center(
-                            child: Container(
-                          width: 250,
-                          child: FlatButton(
-                            child: Text('Save box'),
-                            color: primaryColor,
-                            textColor: Colors.white,
-                            onPressed: () {
-                              Navigator.pop(context);
-                            },
-                          ),
-                        ))),
+                fcsButton(context, getLocalString(context, "btn.save"),
+                    callack: _save),
                 SizedBox(
                   height: 30,
                 )
@@ -135,4 +119,53 @@ class _DiscountEditorState extends State<DiscountEditor> {
           )),
     );
   }
+
+  _save() async {
+    setState(() {
+      _isLoading = true;
+    });
+    try {
+      DiscountModel discountModel =
+          Provider.of<DiscountModel>(context, listen: false);
+      Discount _discount = Discount(
+          code: _codeController.text,
+          customer: _customerController.text,
+          amount: double.parse(_amountController.text));
+      if (_isNew) {
+        await discountModel.addDiscount(_discount);
+      } else {
+        _discount.id = widget.discount.id;
+        await discountModel.updateDiscount(_discount);
+      }
+      Navigator.pop(context);
+    } catch (e) {
+      showMsgDialog(context, "Error", e.toString());
+    } finally {
+      setState(() {
+        _isLoading = false;
+      });
+    }
+  }
+
+  _delete() {
+    showConfirmDialog(
+        context, "cargo_type.edit.delete.confirm", _deleteCargoType);
+  }
+
+  _deleteCargoType() async {
+    setState(() {
+      _isLoading = true;
+    });
+    try {
+      var discountModel = Provider.of<DiscountModel>(context, listen: false);
+      await discountModel.deleteCargoType(widget.discount.id);
+      Navigator.pop(context);
+    } catch (e) {
+      showMsgDialog(context, "Error", e.toString());
+    } finally {
+      setState(() {
+        _isLoading = false;
+      });
+    }
+  }
 }