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

import 'package:farm_tpf/custom_model/CropPlot.dart';
import 'package:farm_tpf/custom_model/TbCropDTO.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/app_bar_widget.dart';
import 'package:farm_tpf/presentation/custom_widgets/bloc/widget_row_plot_info.dart';
import 'package:farm_tpf/presentation/custom_widgets/button_widget.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_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;
  final bool isShowAppbar;
  PlotInformationScreen({required this.cropId, this.isShowAppbar = false});
  @override
  _PlotInformationScreenState createState() => _PlotInformationScreenState();
}

class _PlotInformationScreenState extends State<PlotInformationScreen> with AutomaticKeepAliveClientMixin {
  final GlobalKey<ScaffoldState> _scaffoldKey = new GlobalKey<ScaffoldState>();
  GlobalKey<FormState> _formKey = GlobalKey();
  TextEditingController _descriptionController = TextEditingController();

  bool _autoValidate = false;
  CropPlot cropPlot = CropPlot();
  TbCropDTO _crop = TbCropDTO();
  final controller = Get.put(DescriptionChangeControler());
  Repository _repository = Repository();
  String statusCrop = plot_status_unknown;
  String technicians = '';

  @override
  void initState() {
    super.initState();
    getPlotInfoBloc.getPlotInfo(widget.cropId, (data) {
      var result = data as CropPlot;
      cropPlot = result;
      _crop = result.tbCropDTO ?? TbCropDTO();
      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;
      }
      _descriptionController.text = _crop.description == null ? "" : _crop.description.toString();
      if (_crop.tbDetailUsers != null) {
        for (var i = 0; i < (_crop.tbDetailUsers ?? []).length; i++) {
          if (i == 0) {
            technicians += _crop.tbDetailUsers?[i].fullName ?? '';
          } else {
            technicians += ', ${_crop.tbDetailUsers?[i].fullName ?? ''}';
          }
        }
      }
    }, (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 _descriptionField() {
    return Container(
      padding: EdgeInsets.all(8),
      color: AppColors.YELLOW.withOpacity(0.1),
      child: TextFormField(
        keyboardType: TextInputType.text,
        controller: _descriptionController,
        decoration: InputDecoration(
            labelText: "Ghi chú", hintText: 'Ghi chú', enabledBorder: UnderlineInputBorder(borderSide: BorderSide(color: Colors.grey, width: 0.35))),
        onSaved: (newValue) {
          _crop.description = newValue;
        },
        onChanged: (newValue) {
          controller.changeValue(_crop.description ?? '', newValue);
        },
      ),
    );
  }

  @override
  Widget build(BuildContext context) => KeyboardDismisser(
        gestures: [GestureType.onTap],
        child: Container(
          color: AppColors.ITEM_BG,
          child: SafeArea(
            top: false,
            bottom: true,
            child: Scaffold(
              appBar: widget.isShowAppbar ? AppBarWidget() : null,
              // PreferredSize(
              //     preferredSize: Size(0, 0),
              //     child: SizedBox(),
              //   ),
              key: _scaffoldKey,
              body: KeyboardDismisser(
                child: StreamBuilder(
                  stream: getPlotInfoBloc.actions,
                  builder: (BuildContext context, AsyncSnapshot<dynamic> snapshot) {
                    if (snapshot.hasData) {
                      return Form(
                          key: _formKey,
                          child: SingleChildScrollView(
                            padding: EdgeInsets.all(8.0),
                            child: Column(
                              children: <Widget>[
                                WidgetRowPlotInfo(
                                    color: AppColors.DEFAULT.withOpacity(0.1), name: 'Mã lô', value: '${cropPlot.tbCropDTO?.code ?? ''}'),
                                WidgetRowPlotInfo(color: AppColors.DEFAULT.withOpacity(0.3), name: 'Trạng thái', value: '$statusCrop'),
                                WidgetRowPlotInfo(
                                    color: AppColors.DEFAULT.withOpacity(0.1),
                                    name: 'Nhà màng',
                                    value: '${cropPlot.tbCropDTO?.netHouseName ?? '--'}'),
                                WidgetRowPlotInfo(
                                    color: AppColors.DEFAULT.withOpacity(0.3), name: 'Giống', value: '${cropPlot.tbCropDTO?.suppliesName ?? '--'}'),
                                WidgetRowPlotInfo(
                                    color: AppColors.DEFAULT.withOpacity(0.1),
                                    name: 'Ngày gieo trồng',
                                    value: cropPlot.tbCropDTO?.tbCropTypeId == 0 ? '${cropPlot.plantingDate?.format_DDMMYY_HHmm() ?? '--'}' : '--'),
                                WidgetRowPlotInfo(
                                    color: AppColors.DEFAULT.withOpacity(0.3),
                                    name: 'Ngày vô khây ươm',
                                    value: cropPlot.tbCropDTO?.tbCropTypeId == 1 ? '${cropPlot.sowingDate?.format_DDMMYY_HHmm() ?? '--'}' : '--'),
                                WidgetRowPlotInfo(
                                    color: AppColors.DEFAULT.withOpacity(0.1),
                                    name: 'Thời gian ngâm hạt',
                                    value: '${cropPlot.seedIncubationTime ?? '--'} ngày'),
                                WidgetRowPlotInfo(
                                    color: AppColors.DEFAULT.withOpacity(0.3), name: 'Số lượng cây trồng', value: '${cropPlot.numberPlants ?? '--'}'),
                                WidgetRowPlotInfo(
                                    color: AppColors.DEFAULT.withOpacity(0.1),
                                    name: 'Số lượng cây hiện tại',
                                    value: '${cropPlot.numberCurrentPlants ?? '--'}'),
                                WidgetRowPlotInfo(
                                    color: AppColors.DEFAULT.withOpacity(0.3),
                                    name: 'Ngày kết thúc canh tác',
                                    value: '${cropPlot.tbCropDTO?.endDate?.format_DDMMYY_HHmm() ?? '--'}'),
                                WidgetRowPlotInfo(color: AppColors.DEFAULT.withOpacity(0.1), name: 'Kỹ sư trực tiếp', value: '$technicians'),
                                WidgetRowPlotInfo(
                                    color: AppColors.DEFAULT.withOpacity(0.3),
                                    name: 'Diện tích (m\u00B2)',
                                    value: '${cropPlot.tbCropDTO?.areaM2?.formatNumtoStringDecimal()}'),
                                SizedBox(
                                  height: 8,
                                ),
                                _descriptionField(),
                                SizedBox(
                                  height: 16,
                                ),
                                GetBuilder<DescriptionChangeControler>(
                                  init: controller,
                                  builder: (_) {
                                    return ButtonWidget(
                                      title: 'CẬP NHẬT',
                                      onPressed: controller.isChanged == false
                                          ? () {}
                                          : () {
                                              FocusScopeNode currentFocus = FocusScope.of(context);
                                              if (!currentFocus.hasPrimaryFocus) {
                                                currentFocus.unfocus();
                                              }
                                              _validateInputs();
                                            },
                                    );
                                  },
                                )
                              ],
                            ),
                          ));
                    } else if (snapshot.hasError) {
                      return Center(
                        child: Text(snapshot.error.toString()),
                      );
                    } else {
                      return LoadingListPage();
                    }
                  },
                ),
              ),
            ),
          ),
        ),
      );

  @override
  void 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 (newValue.isEmpty) {
      isChanged = false;
    }
    update();
  }
}