fcs/lib/pages/rates/shipment_rates.dart

import 'package:fcs/domain/entities/cargo_type.dart';
import 'package:fcs/domain/entities/discount_by_weight.dart';
import 'package:fcs/domain/entities/rate.dart';
import 'package:fcs/helpers/theme.dart';
import 'package:fcs/pages/main/model/main_model.dart';
import 'package:fcs/pages/rates/cargo_type_list.dart';
import 'package:fcs/pages/rates/custom_list.dart';
import 'package:fcs/pages/rates/model/shipment_rate_model.dart';
import 'package:fcs/pages/widgets/local_app_bar.dart';
import 'package:fcs/pages/widgets/local_text.dart';
import 'package:fcs/pages/widgets/progress.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';

import '../main/util.dart';
import 'discount_by weight_list.dart';
import 'shipment_rates_calculate.dart';
import 'shipment_rates_edit.dart';

class ShipmentRates extends StatefulWidget {
  ShipmentRates();

  @override
  _ShipmentRatesState createState() => _ShipmentRatesState();
}

class _ShipmentRatesState extends State<ShipmentRates> {
  bool _isLoading = false;

  @override
  void initState() {
    super.initState();
  }

  @override
  void dispose() {
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    var shipmentRateModel = Provider.of<ShipmentRateModel>(context);
    Rate rate = shipmentRateModel.rate;
    bool isEditable = context.select((MainModel m) => m.rateEditable());

    return LocalProgress(
      inAsyncCall: _isLoading,
      child: Scaffold(
        appBar: LocalAppBar(
            labelKey: "rate.title",
            backgroundColor: Colors.white,
            labelColor: primaryColor,
            arrowColor: primaryColor,
            actions: isEditable
                ? [
                    IconButton(
                        onPressed: () => Navigator.of(context).push(
                            CupertinoPageRoute(
                                builder: (context) => ShipmentRatesEdit())),
                        icon: Icon(Icons.edit, color: primaryColor))
                  ]
                : []),
        body: Padding(
          padding: const EdgeInsets.all(8.0),
          child: ListView(
            children: <Widget>[
              fcsButton(context, getLocalString(context, "rate.cal.title"),
                  callack: () {
                Navigator.of(context).push(CupertinoPageRoute(
                    builder: (context) => ShipmentRatesCal()));
              }),
              Divider(
                color: Colors.grey,
              ),
              Container(
                padding: EdgeInsets.only(left: 25, top: 10, right: 25),
                child: Row(
                  children: [
                    LocalText(context, "rate.cargo.type",
                        color: primaryColor,
                        fontWeight: FontWeight.bold,
                        fontSize: 15),
                    Spacer(),
                    isEditable
                        ? IconButton(
                            icon: Icon(Icons.edit, color: primaryColor),
                            onPressed: () {
                              Navigator.of(context).push(CupertinoPageRoute(
                                  builder: (context) => CargoTypeList()));
                            })
                        : Container()
                  ],
                ),
              ),
              Column(
                children: getCargoWidget(shipmentRateModel.rate.cargoTypes),
              ),
              Divider(
                color: Colors.grey,
              ),
              Container(
                padding: EdgeInsets.only(left: 25, top: 10, right: 25),
                child: Row(
                  children: [
                    LocalText(context, "rate.discount_by_weight",
                        color: primaryColor,
                        fontWeight: FontWeight.bold,
                        fontSize: 15),
                    Spacer(),
                    isEditable
                        ? IconButton(
                            icon: Icon(Icons.edit, color: primaryColor),
                            onPressed: () {
                              Navigator.of(context).push(CupertinoPageRoute(
                                  builder: (context) =>
                                      DiscountByWeightList()));
                            })
                        : Container()
                  ],
                ),
              ),
              Column(
                children:
                    getDiscountWidget(shipmentRateModel.rate.discountByWeights),
              ),
              Divider(
                color: Colors.grey,
              ),
              _row("Free delivery within Yangon \nfor shipments over",
                  "${rate.freeDeliveryWeight.toStringAsFixed(2)}", "pounds"),
              _row("Delivery fees", "\$ ${rate.deliveryFee.toStringAsFixed(2)}",
                  "below ${rate.freeDeliveryWeight.toStringAsFixed(2)} pounds"),
              _row(
                  "Volumetric Ratio",
                  "${rate.volumetricRatio.toStringAsFixed(2)}",
                  "in3 per pound"),
              _row("Weight difference discount",
                  "${rate.diffDiscountWeight.toStringAsFixed(2)}", "pounds"),
              _row("Weight difference rate",
                  "\$ ${rate.diffWeightRate.toStringAsFixed(2)}", ""),
              Divider(
                color: Colors.grey,
              ),
              Container(
                padding: EdgeInsets.only(left: 25, top: 10, right: 25),
                child: Row(
                  children: [
                    LocalText(context, "rate.custom_duty",
                        color: primaryColor,
                        fontWeight: FontWeight.bold,
                        fontSize: 15),
                    Spacer(),
                    isEditable
                        ? IconButton(
                            icon: Icon(Icons.edit, color: primaryColor),
                            onPressed: () {
                              Navigator.of(context).push(CupertinoPageRoute(
                                  builder: (context) => CustomList()));
                            })
                        : Container()
                  ],
                ),
              ),
              Column(
                children: getCustonWidget(shipmentRateModel.rate.customDuties),
              ),
            ],
          ),
        ),
      ),
    );
  }

  List<Widget> getCargoWidget(List<CargoType> cargos) {
    return cargos.map((cargo) {
      return Container(
        child: _row(cargo.name ?? "", "\$ " + cargo.rate.toStringAsFixed(2),
            'per pound'),
      );
    }).toList();
  }

  List<Widget> getCustonWidget(List<CargoType> customs) {
    return customs.map((c) {
      return Container(
        child:
            _row(c.name ?? "", "\$ " + c.customDutyFee.toStringAsFixed(2), ''),
      );
    }).toList();
  }

  List<Widget> getDiscountWidget(List<DiscountByWeight> discounts) {
    if (discounts.isEmpty) return [];
    return discounts.map((d) {
      return Container(
        child: _row("${d.weight.toStringAsFixed(2)} lb",
            "\$ " + d.discount.toStringAsFixed(2), ''),
      );
    }).toList();
  }

  _row(String desc, String price, String unit) {
    return Container(
        padding: EdgeInsets.only(left: 25, top: 5, bottom: 5),
        child: Row(
          children: <Widget>[
            Text('$desc ', style: TextStyle(fontSize: 15)),
            Spacer(),
            Column(
              crossAxisAlignment: CrossAxisAlignment.end,
              children: <Widget>[
                Padding(
                  padding: const EdgeInsets.only(bottom: 3.0),
                  child: Text(
                    '$price',
                    style: TextStyle(color: primaryColor, fontSize: 14),
                  ),
                ),
                Text(
                  '$unit',
                  style: TextStyle(color: Colors.grey, fontSize: 14),
                ),
              ],
            ),
            SizedBox(
              width: 50,
            ),
          ],
        ));
  }
}