add paginator

lib/pages/rates/shipment_rates_calculate.dart

@@ -1,17 +1,18 @@
+import 'package:fcs/domain/entities/box.dart';
+import 'package:fcs/domain/entities/cargo_type.dart';
+import 'package:fcs/domain/entities/rate.dart';
 import 'package:fcs/helpers/theme.dart';
-import 'package:fcs/localization/app_translations.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/length_picker.dart';
 import 'package:fcs/pages/widgets/local_text.dart';
-import 'package:fcs/pages/widgets/local_title.dart';
 import 'package:fcs/pages/widgets/progress.dart';
 import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
 import 'package:flutter_icons/flutter_icons.dart';
 import 'package:provider/provider.dart';
 
-import 'package:flutter/material.dart';
-
 class ShipmentRatesCal extends StatefulWidget {
   ShipmentRatesCal();
 
@@ -21,27 +22,52 @@ class ShipmentRatesCal extends StatefulWidget {
 
 class _ShipmentRatesCalState extends State<ShipmentRatesCal> {
   bool _isLoading = false;
-  String cargoType;
+  CargoType _cargoType;
   TextEditingController _widthController = new TextEditingController();
   TextEditingController _heightController = new TextEditingController();
   TextEditingController _lengthController = new TextEditingController();
-  double shipmentWeight = 0;
-  double volumetricRatio = 0;
+  TextEditingController _actualWeightCtl = new TextEditingController();
+  double _shipmentWeight = 0;
+  double _amount = 0;
+  double _deliveryFee = 0;
 
   @override
   void initState() {
     super.initState();
 
     //for shipment weight
-    volumetricRatio = Provider.of<ShipmentRateModel>(context, listen: false)
-        .rate
-        .volumetricRatio;
-    // _lengthController.addListener(_calShipmentWeight);
-    // _widthController.addListener(_calShipmentWeight);
-    // _heightController.addListener(_calShipmentWeight);
-    _lengthController.text = '10';
-    _widthController.text = '10';
-    _heightController.text = '10';
+    Rate rate = Provider.of<ShipmentRateModel>(context, listen: false).rate;
+    _lengthController.addListener(_calShipmentWeight);
+    _widthController.addListener(_calShipmentWeight);
+    _heightController.addListener(_calShipmentWeight);
+    _actualWeightCtl.addListener(_calShipmentWeight);
+    _cargoType = rate.defaultCargoType;
+    _lengthController.text = '12';
+    _widthController.text = '12';
+    _heightController.text = '12';
+    _actualWeightCtl.text = "10";
+    _calShipmentWeight();
+  }
+
+  _calShipmentWeight() {
+    Rate rate = Provider.of<ShipmentRateModel>(context, listen: false).rate;
+
+    double l = double.parse(_lengthController.text, (s) => 0);
+    double w = double.parse(_widthController.text, (s) => 0);
+    double h = double.parse(_heightController.text, (s) => 0);
+    _cargoType.weight = double.tryParse(_actualWeightCtl.text) ?? 0;
+    Box box = Box(cargoTypes: [_cargoType], length: l, width: w, height: h);
+    var amount = box.calAmount(rate);
+    var shipmentWeight = box.getShipmentWeight(rate.volumetricRatio);
+    var effectiveWeight =
+        _cargoType.weight > shipmentWeight ? _cargoType.weight : shipmentWeight;
+
+    setState(() {
+      _deliveryFee =
+          effectiveWeight > rate.freeDeliveryWeight ? 0 : rate.deliveryFee;
+      _amount = amount == null ? 0 : amount + _deliveryFee;
+      _shipmentWeight = shipmentWeight;
+    });
   }
 
   @override
@@ -80,15 +106,16 @@ class _ShipmentRatesCalState extends State<ShipmentRatesCal> {
     );
 
     final shipmentWeightBox = DisplayText(
-      text: shipmentWeight != null ? shipmentWeight.toStringAsFixed(0) : "6",
+      text: _shipmentWeight != null ? _shipmentWeight.toStringAsFixed(2) : "0",
       labelTextKey: "box.shipment_weight",
       iconData: MaterialCommunityIcons.weight,
     );
 
-    final actualWeightBox = DisplayText(
-      text: shipmentWeight != null ? shipmentWeight.toStringAsFixed(0) : "",
+    final actualWeightBox = InputText(
+      controller: _actualWeightCtl,
       labelTextKey: "box.actual_weight",
       iconData: MaterialCommunityIcons.weight,
+      textInputType: TextInputType.number,
     );
 
     return LocalProgress(
@@ -119,17 +146,19 @@ class _ShipmentRatesCalState extends State<ShipmentRatesCal> {
                     Container(
                       width: 150.0,
                       child: DropdownButtonFormField(
+                        value: _cargoType,
                         decoration: InputDecoration(
                             fillColor: Colors.white,
                             hintText: shipmentRateModel.rate.cargoTypes[0].name,
                             hintStyle: TextStyle(color: Colors.black87)),
                         items: shipmentRateModel.rate.cargoTypes
-                            .map((e) => DropdownMenuItem(
-                                child: Text(e.name), value: e.name))
+                            .map((e) =>
+                                DropdownMenuItem(child: Text(e.name), value: e))
                             .toList(),
                         onChanged: (selected) => {
                           setState(() {
-                            cargoType = selected;
+                            _cargoType = selected;
+                            _calShipmentWeight();
                           })
                         },
                       ),
@@ -137,51 +166,40 @@ class _ShipmentRatesCalState extends State<ShipmentRatesCal> {
                   ],
                 ),
               ),
+              actualWeightBox,
               // LocalTitle(textKey: "box.dimension"),
               dimBox,
               shipmentWeightBox,
-              actualWeightBox,
-
               SizedBox(height: 50),
-              Center(
-                  child: Container(
-                alignment: Alignment.center,
-                width: 150,
-                child: Row(
-                  crossAxisAlignment: CrossAxisAlignment.center,
-                  children: [
-                    LocalText(context, "rate.delivery_fee",
-                        color: primaryColor, fontSize: 16),
-                    Text(
-                      ':\$ 5',
-                      style: TextStyle(
-                        color: primaryColor,
-                        fontSize: 16,
-                      ),
-                    )
-                  ],
-                ),
-              )),
+              Row(
+                mainAxisAlignment: MainAxisAlignment.center,
+                children: [
+                  LocalText(context, "rate.delivery_fee",
+                      color: primaryColor, fontSize: 16),
+                  Text(
+                    ':\$ $_deliveryFee',
+                    style: TextStyle(
+                      color: primaryColor,
+                      fontSize: 16,
+                    ),
+                  )
+                ],
+              ),
               SizedBox(height: 20),
-              Center(
-                  child: Container(
-                width: 220,
-                alignment: Alignment.center,
-                child: Row(
-                  crossAxisAlignment: CrossAxisAlignment.center,
-                  children: [
-                    LocalText(context, "rate.total_estimated_amount",
-                        color: primaryColor, fontSize: 16),
-                    Text(
-                      ':\$ 41',
-                      style: TextStyle(
-                        color: primaryColor,
-                        fontSize: 16,
-                      ),
-                    )
-                  ],
-                ),
-              ))
+              Row(
+                mainAxisAlignment: MainAxisAlignment.center,
+                children: [
+                  LocalText(context, "rate.total_estimated_amount",
+                      color: primaryColor, fontSize: 16),
+                  Text(
+                    ':\$${_amount.toStringAsFixed(2)}',
+                    style: TextStyle(
+                      color: primaryColor,
+                      fontSize: 16,
+                    ),
+                  )
+                ],
+              )
             ],
           ),
         ),