fcs/lib/pages/product_edit_item.dart

import 'package:flutter/material.dart';
import 'package:font_awesome_flutter/font_awesome_flutter.dart';
import 'package:provider/provider.dart';
import 'package:fcs/model/language_model.dart';
import 'package:fcs/model/product_model.dart';
import 'package:fcs/pages/util.dart';
import 'package:fcs/vo/product.dart';
import 'package:fcs/widget/localization/app_translations.dart';
import 'package:fcs/widget/progress.dart';

import '../fcs/common/theme.dart';

class ProductEditItem extends StatefulWidget {
  final Product product;

  const ProductEditItem({Key key, this.product}) : super(key: key);
  @override
  _ProductEditItemState createState() => _ProductEditItemState();
}

class _ProductEditItemState extends State<ProductEditItem> {
  TextEditingController nameController = new TextEditingController();
  TextEditingController priceController = new TextEditingController();
  TextEditingController orderController = new TextEditingController();
  int color = primaryColor.value;
  bool isDisable = false;

  final _formKey = GlobalKey<FormState>();
  bool _isLoading = false;

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

    if (widget.product != null) {
      this.color = widget.product.color;
      nameController.text = widget.product.name;
      priceController.text = widget.product.price.toString();
      orderController.text = widget.product.displayOrder.toString();
      if (widget.product.isDisable != null) {
        isDisable = widget.product.isDisable;
      } else {
        isDisable = false;
      }
    }
  }

  @override
  Widget build(BuildContext context) {
    var maingModel = Provider.of<LanguageModel>(context);
    final nameWidget = Container(
      padding: EdgeInsets.only(top: 10),
      child: TextFormField(
        controller: nameController,
        autofocus: true,
        cursorColor: primaryColor,
        style: textStyle,
        decoration: new InputDecoration(
          icon: InkWell(
            child: Icon(
              FontAwesomeIcons.tag,
              color: Color(this.color),
              size: 25,
            ),
            onTap: () => showColorPicker(context, Color(this.color), (color) {
              setState(() {
                this.color = color.value;
              });
            }),
          ),
          labelText: AppTranslations.of(context).text("product.name"),
          labelStyle: maingModel.isEng ? labelStyle : labelStyleMM,
          enabledBorder: UnderlineInputBorder(
              borderSide: BorderSide(color: primaryColor, width: 1.0)),
          focusedBorder: UnderlineInputBorder(
              borderSide: BorderSide(color: primaryColor, width: 1.0)),
        ),
        validator: (value) {
          if (value.isEmpty) {
            return AppTranslations.of(context).text("product.name_empty");
          }
          return null;
        },
      ),
    );

    final priceInput = Container(
      child: TextFormField(
        controller: priceController,
        style: TextStyle(fontSize: 16.0, fontStyle: FontStyle.normal),
        keyboardType: TextInputType.number,
        cursorColor: primaryColor,
        decoration: new InputDecoration(
          icon: Icon(
            FontAwesomeIcons.moneyBill,
            color: primaryColor,
            size: 25,
          ),
          border: InputBorder.none,
          labelText: AppTranslations.of(context).text("product.new_price"),
          labelStyle: maingModel.isEng ? labelStyle : labelStyleMM,
          enabledBorder: UnderlineInputBorder(
              borderSide: BorderSide(color: primaryColor, width: 1.0)),
          focusedBorder: UnderlineInputBorder(
              borderSide: BorderSide(color: primaryColor, width: 1.0)),
        ),
        validator: (value) {
          if (value.isEmpty) {
            return AppTranslations.of(context).text("product.price_empty");
          }
          return null;
        },
      ),
    );

    final orderInput = Container(
      child: TextFormField(
        controller: orderController,
        style: TextStyle(fontSize: 16.0, fontStyle: FontStyle.normal),
        keyboardType: TextInputType.number,
        cursorColor: primaryColor,
        decoration: new InputDecoration(
          icon: Icon(
            Icons.sort,
            color: primaryColor,
            size: 25,
          ),
          border: InputBorder.none,
          labelText: AppTranslations.of(context).text("product.order"),
          labelStyle: maingModel.isEng ? labelStyle : labelStyleMM,
          enabledBorder: UnderlineInputBorder(
              borderSide: BorderSide(color: primaryColor, width: 1.0)),
          focusedBorder: UnderlineInputBorder(
              borderSide: BorderSide(color: primaryColor, width: 1.0)),
        ),
        validator: (value) {
          if (value.isEmpty) {
            return AppTranslations.of(context).text("product.order_empty");
          }
          return null;
        },
      ),
    );

    final disableBox = Container(
        padding: EdgeInsets.only(top: 10),
        child: CheckboxListTile(
          title: Text("Disable"),
          value: isDisable,
          activeColor: primaryColor,
          onChanged: (value) {
            setState(() {
              isDisable = value;
            });
          },
          controlAffinity: ListTileControlAffinity.leading,
        ));
    return LocalProgress(
      inAsyncCall: _isLoading,
      child: Scaffold(
        appBar: AppBar(
          title: Text(AppTranslations.of(context).text("product.item"),
              style: maingModel.isEng
                  ? TextStyle(color: Colors.white, fontSize: 20.0)
                  : TextStyle(
                      color: Colors.white,
                      fontSize: 20.0,
                      fontFamily: 'MyanmarUnicode')),
          actions: <Widget>[
            IconButton(
              icon: Icon(Icons.save),
              onPressed: () {
                if (!_formKey.currentState.validate()) return;
                Provider.of<ProductModel>(context, listen: false).saveProduct(
                    widget.product,
                    nameController.text,
                    priceController.text,
                    orderController.text,
                    color,
                    isDisable);
                Product _product = new Product();
                if (widget.product != null) {
                  _product = widget.product;
                  _product.name = nameController.text;
                  _product.price = int.parse(priceController.text);
                  _product.color = color;
                  _product.displayOrder = int.parse(orderController.text);
                  _product.isDisable = isDisable;
                  if (_product.id == null) {
                    _product.action = "create";
                  } else {
                    _product.action = "update";
                  }
                }
                Navigator.pop<Product>(context, _product);
              },
            )
          ],
          backgroundColor: primaryColor,
        ),
        body: Form(
          key: _formKey,
          child: SingleChildScrollView(
            padding: EdgeInsets.only(
              left: 25.0,
              right: 25.0,
            ),
            child: Column(
              mainAxisAlignment: MainAxisAlignment.center,
              crossAxisAlignment: CrossAxisAlignment.center,
              children: <Widget>[
                nameWidget,
                priceInput,
                orderInput,
                this.widget.product != null ? disableBox : Container(),
              ],
            ),
          ),
        ),
      ),
    );
  }
}