mobile-app/lib/presentation/screens/plot_detail/sc_plot_information.dart

import 'package:farm_tpf/custom_model/CropPlot.dart';
import 'package:farm_tpf/data/api/app_exception.dart';
import 'package:farm_tpf/data/repository/repository.dart';
import 'package:farm_tpf/presentation/custom_widgets/loading_list_page.dart';
import 'package:farm_tpf/presentation/custom_widgets/widget_loading.dart';
import 'package:farm_tpf/presentation/custom_widgets/widget_toast.dart';
import 'package:farm_tpf/presentation/custom_widgets/widget_utils.dart';
import 'package:farm_tpf/presentation/screens/plot_detail/bloc_plot_information.dart';
import 'package:farm_tpf/utils/const_color.dart';
import 'package:farm_tpf/utils/const_string.dart';
import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:keyboard_dismisser/keyboard_dismisser.dart';
import 'package:farm_tpf/utils/formatter.dart';

class PlotInformationScreen extends StatefulWidget {
  final int cropId;
  PlotInformationScreen({@required this.cropId});
  @override
  _PlotInformationScreenState createState() => _PlotInformationScreenState();
}

class _PlotInformationScreenState extends State<PlotInformationScreen>
    with AutomaticKeepAliveClientMixin {
  final GlobalKey<ScaffoldState> _scaffoldKey = new GlobalKey<ScaffoldState>();
  GlobalKey<FormState> _formKey = GlobalKey();
  TextEditingController _statusController = TextEditingController();
  TextEditingController _houseNameController = TextEditingController();
  TextEditingController _codeController = TextEditingController();
  TextEditingController _supplyNameController = TextEditingController();
  TextEditingController _seedingDateController = TextEditingController();
  TextEditingController _timeSoakSeedController = TextEditingController();
  TextEditingController _timeNurserySeedController = TextEditingController();
  TextEditingController _quantityPlantController = TextEditingController();
  TextEditingController _currentPlantController = TextEditingController();
  TextEditingController _timeEndGrowController = TextEditingController();
  TextEditingController _mainTechnicianController = TextEditingController();
  TextEditingController _areaController = TextEditingController();
  TextEditingController _descriptionController = TextEditingController();

  bool _autoValidate = false;
  TbCropDTO _crop = TbCropDTO();
  final controller = Get.put(DescriptionChangeControler());
  Repository _repository = Repository();

  @override
  void initState() {
    super.initState();
    getPlotInfoBloc.getPlotInfo(widget.cropId, (data) {
      var result = data as CropPlot;
      _crop = result.tbCropDTO;
      var statusCrop;
      switch (_crop.status) {
        case "STATUS_ARE_ACTIVE":
          statusCrop = plot_status_active;
          break;
        case "STATUS_FINISHED":
          statusCrop = plot_status_end;
          break;
        default:
          statusCrop = plot_status_unknown;
      }

      _statusController.text = statusCrop;
      _houseNameController.text = _crop.netHouseName?.toString();
      _codeController.text = _crop.code?.toString();
      _supplyNameController.text = _crop.suppliesName?.toString();
      _areaController.text = _crop.areaM2.formatNumtoStringDecimal();
      _seedingDateController.text = result.sowingDate.format_DDMMYY_HHmm();
      _timeSoakSeedController.text =
          result.soakSeedsTime.formatNumtoStringDecimal();
      _timeNurserySeedController.text =
          result.soakSeedsTime.formatNumtoStringDecimal();
      _quantityPlantController.text =
          result.numberPlants.formatNumtoStringDecimal();
      _currentPlantController.text =
          result.numberCurrentPlants.formatNumtoStringDecimal();
      _timeEndGrowController.text = _crop.endDate.format_DDMMYY_HHmm();
      _descriptionController.text =
          _crop.description == null ? "" : _crop.description.toString();
      var technicians = _crop.tbDetailUsers.map((e) => e.fullName).join(", ");
      _mainTechnicianController.text = technicians;
    }, (err) {});
  }

  _validateInputs() async {
    if (_formKey.currentState.validate()) {
      _formKey.currentState.save();
      LoadingDialog.showLoadingDialog(context);
      _repository.updatePlot(_crop).then((value) {
        LoadingDialog.hideLoadingDialog(context);
        Utils.showSnackBarSuccess(message: label_update_success);
        controller.initValue();
      }).catchError((error) {
        LoadingDialog.hideLoadingDialog(context);
        Utils.showSnackBarError(message: AppException.handleError(error));
      });
    } else {
      _autoValidate = true;
    }
  }

  Widget _statusField() {
    return TextFormField(
      enabled: false,
      controller: _statusController,
      decoration: InputDecoration(labelText: "Trạng thái"),
    );
  }

  Widget _houseNameField() {
    return TextFormField(
      enabled: false,
      controller: _houseNameController,
      decoration: InputDecoration(labelText: "Nhà màng"),
    );
  }

  Widget _codeField() {
    return TextFormField(
      enabled: false,
      controller: _codeController,
      decoration: InputDecoration(labelText: "Mã lô"),
    );
  }

  Widget _supplyNameField() {
    return TextFormField(
      enabled: false,
      controller: _supplyNameController,
      decoration: InputDecoration(labelText: "Giống"),
    );
  }

  Widget _seedingDateField() {
    return TextFormField(
      enabled: false,
      controller: _seedingDateController,
      decoration: InputDecoration(labelText: "Ngày gieo trồng"),
    );
  }

  Widget _timeSoakSeedField() {
    return TextFormField(
      enabled: false,
      controller: _timeSoakSeedController,
      decoration: InputDecoration(labelText: "Thời gian ngâm hạt"),
    );
  }

  Widget _timeNurserySeedField() {
    return TextFormField(
      enabled: false,
      controller: _timeNurserySeedController,
      decoration: InputDecoration(labelText: "Thời gian vô khây ươm"),
    );
  }

  Widget _quantityPlantField() {
    return TextFormField(
      enabled: false,
      controller: _quantityPlantController,
      decoration: InputDecoration(labelText: "Số lượng cây trồng"),
    );
  }

  Widget _currentPlantField() {
    return TextFormField(
      enabled: false,
      controller: _currentPlantController,
      decoration: InputDecoration(labelText: "Số lượng cây hiện tại"),
    );
  }

  Widget _timeEndGrowField() {
    return TextFormField(
      enabled: false,
      controller: _timeEndGrowController,
      decoration: InputDecoration(labelText: "Ngày kết thúc canh tác"),
    );
  }

  Widget _mainTechnicianField() {
    return TextFormField(
      enabled: false,
      controller: _mainTechnicianController,
      decoration: InputDecoration(labelText: "Kỹ sư trực tiếp"),
    );
  }

  Widget _areaField() {
    return TextFormField(
      enabled: false,
      controller: _areaController,
      decoration: InputDecoration(labelText: "Diện tích (m\u00B2)"),
    );
  }

  Widget _descriptionField() {
    return TextFormField(
      keyboardType: TextInputType.text,
      controller: _descriptionController,
      decoration: InputDecoration(labelText: "Ghi chú"),
      onSaved: (newValue) {
        _crop.description = newValue;
      },
      onChanged: (newValue) {
        controller.changeValue(_crop.description, newValue);
      },
    );
  }

  _actionAppBar() {
    return <Widget>[
      GetBuilder<DescriptionChangeControler>(
        builder: (_) {
          return IconButton(
            icon: Icon(
              Icons.done,
            ),
            disabledColor: Colors.grey,
            onPressed: controller.isChanged == false
                ? null
                : () {
                    FocusScopeNode currentFocus = FocusScope.of(context);
                    if (!currentFocus.hasPrimaryFocus) {
                      currentFocus.unfocus();
                    }
                    _validateInputs();
                  },
          );
        },
      )
    ];
  }

  @override
  Widget build(BuildContext context) => KeyboardDismisser(
          gestures: [
            GestureType.onTap,
            GestureType.onPanUpdateDownDirection,
          ],
          child: Container(
              color: AppColors.ITEM_BG,
              child: SafeArea(
                  top: false,
                  bottom: true,
                  child: Scaffold(
                      key: _scaffoldKey,
                      appBar: AppBar(
                          centerTitle: true,
                          title: Text("Thông tin lô"),
                          actions: _actionAppBar()),
                      body: KeyboardDismisser(
                          child: StreamBuilder(
                              stream: getPlotInfoBloc.actions,
                              builder: (BuildContext context,
                                  AsyncSnapshot<dynamic> snapshot) {
                                if (snapshot.hasData) {
                                  return Form(
                                      key: _formKey,
                                      autovalidate: _autoValidate,
                                      child: SingleChildScrollView(
                                        padding: EdgeInsets.all(8.0),
                                        child: Column(
                                          children: <Widget>[
                                            _statusField(),
                                            SizedBox(
                                              height: 4.0,
                                            ),
                                            _houseNameField(),
                                            SizedBox(
                                              height: 4.0,
                                            ),
                                            _codeField(),
                                            SizedBox(
                                              height: 4.0,
                                            ),
                                            _supplyNameField(),
                                            SizedBox(
                                              height: 4.0,
                                            ),
                                            _seedingDateField(),
                                            SizedBox(
                                              height: 4.0,
                                            ),
                                            _timeSoakSeedField(),
                                            SizedBox(
                                              height: 4.0,
                                            ),
                                            _timeNurserySeedField(),
                                            SizedBox(
                                              height: 4.0,
                                            ),
                                            _quantityPlantField(),
                                            SizedBox(
                                              height: 4.0,
                                            ),
                                            _currentPlantField(),
                                            SizedBox(
                                              height: 4.0,
                                            ),
                                            _timeEndGrowField(),
                                            SizedBox(
                                              height: 4.0,
                                            ),
                                            _mainTechnicianField(),
                                            SizedBox(
                                              height: 4.0,
                                            ),
                                            _areaField(),
                                            SizedBox(
                                              height: 4.0,
                                            ),
                                            _descriptionField()
                                          ],
                                        ),
                                      ));
                                } else if (snapshot.hasError) {
                                  return Center(
                                    child: Text(snapshot.error.toString()),
                                  );
                                } else {
                                  return LoadingListPage();
                                }
                              }))))));

  @override
  void dispose() {
    _statusController.dispose();
    _houseNameController.dispose();
    _codeController.dispose();
    _supplyNameController.dispose();
    _seedingDateController.dispose();
    _timeSoakSeedController.dispose();
    _timeNurserySeedController.dispose();
    _quantityPlantController.dispose();
    _currentPlantController.dispose();
    _timeEndGrowController.dispose();
    _mainTechnicianController.dispose();
    _areaController.dispose();
    _descriptionController.dispose();
    super.dispose();
  }

  @override
  bool get wantKeepAlive => true;
}

class DescriptionChangeControler extends GetxController {
  bool isChanged = false;

  void initValue() {
    isChanged = false;
    update();
  }

  void changeValue(String oldValue, String newValue) {
    if (oldValue != newValue) {
      isChanged = true;
    } else {
      isChanged = false;
    }
    if (oldValue.isNullOrBlank && newValue.isEmpty) {
      isChanged = false;
    }
    update();
  }
}