import 'package:farm_tpf/custom_model/SuppliesUsing.dart';
import 'package:farm_tpf/custom_model/Supply.dart';
import 'package:farm_tpf/presentation/custom_widgets/WidgetErrorTextField.dart';
import 'package:farm_tpf/presentation/custom_widgets/widget_text_form_field.dart';
import 'package:farm_tpf/presentation/custom_widgets/widget_utils.dart';
import 'package:farm_tpf/presentation/screens/actions/controller/ChangeFieldInForm.dart';
import 'package:farm_tpf/presentation/screens/actions/controller/ChangeFormButton.dart';
import 'package:farm_tpf/presentation/screens/actions/controller/ChangeSupplyUsing.dart';
import 'package:farm_tpf/presentation/screens/actions/controller/ChangeUnit.dart';
import 'package:farm_tpf/presentation/screens/actions/state_management_helper/change_supply.dart';
import 'package:farm_tpf/presentation/screens/actions/util_action.dart';
import 'package:farm_tpf/presentation/screens/resources/sc_resource_helper.dart';
import 'package:farm_tpf/utils/const_color.dart';
import 'package:farm_tpf/utils/const_common.dart';
import 'package:farm_tpf/utils/const_string.dart';
import 'package:farm_tpf/utils/const_style.dart';
import 'package:farm_tpf/utils/validators.dart';
import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:farm_tpf/utils/formatter.dart';

class WidgetPlantSupply extends StatefulWidget {
  final List<SuppliesUsing> currentItems;
  final Function(List<SuppliesUsing> supplyChanges) onChangeSupplies;
  WidgetPlantSupply({this.currentItems, @required this.onChangeSupplies});
  @override
  _WidgetPlantSupplyState createState() => _WidgetPlantSupplyState();
}

class _WidgetPlantSupplyState extends State<WidgetPlantSupply> {
  final _dosageController = TextEditingController();
  final _quantityController = TextEditingController();
  final changeSelectedSupply = Get.put(ChangeSupply());
  final changeSupplyUsing = Get.put(ChangeSupplyUsing());
  final changeUnit = Get.put(ChangeUnit());
  final changeButton = Get.put(ChangeButtonInForm());
  final changeFormField = Get.put(ChangeFieldFormSupply());
  GlobalKey<FormState> _formSupplyKey = GlobalKey();

  @override
  void initState() {
    super.initState();
    changeSelectedSupply.initValue();
    changeSupplyUsing.init(widget.currentItems);
    changeUnit.initValue();
    changeButton.resetValue();
    changeFormField.init();
  }

  Widget _buildListSupply() {
    return GetBuilder<ChangeSupplyUsing>(builder: (value) {
      widget.onChangeSupplies(value.currentItems);
      if (value.currentItems.isEmpty) {
        return Container();
      } else {
        return Container(
            height: 80,
            child: ListView.builder(
                physics: ClampingScrollPhysics(),
                scrollDirection: Axis.horizontal,
                shrinkWrap: true,
                itemCount: value.currentItems.length,
                itemBuilder: (context, index) {
                  return GestureDetector(
                      onTap: () {
                        print("edit");
                        changeSupplyUsing.changeIndexEdit(index);
                        changeButton.updateToEdit(true);
                        var editedSupplyUsing = value.currentItems[index];
                        var editedSupply = Supply()
                          ..id = editedSupplyUsing.tbSuppliesInWarehouseId
                          ..tbSuppliesName = editedSupplyUsing.supplyName
                          ..unit = editedSupplyUsing.supplyUnit;
                        changeSelectedSupply.change(editedSupply);
                        changeUnit
                            .updateListByUnitName(editedSupplyUsing.supplyUnit);
                        changeUnit.updateSelected(editedSupplyUsing.supplyUnit);
                        _dosageController.text = editedSupplyUsing.dosage;
                        _quantityController.text = editedSupplyUsing.quantity
                            .formatNumtoStringDecimal();
                      },
                      child: Card(
                          child: Stack(
                        alignment: Alignment.bottomCenter,
                        overflow: Overflow.visible,
                        children: <Widget>[
                          Positioned(
                              child: ClipRRect(
                            borderRadius: BorderRadius.circular(8),
                            child: Container(
                              padding: EdgeInsets.all(4),
                              width: 150,
                              child: Column(
                                mainAxisAlignment: MainAxisAlignment.center,
                                children: [
                                  SizedBox(
                                    height: 12.0,
                                  ),
                                  Flexible(
                                    child: Text(
                                        value.currentItems[index].supplyName ??
                                            "",
                                        overflow: TextOverflow.ellipsis,
                                        maxLines: 1),
                                  ),
                                  Validators.stringNotNullOrEmpty(
                                          value.currentItems[index].dosage)
                                      ? Flexible(
                                          child: Text(
                                              "${value.currentItems[index].dosage ?? ""}"))
                                      : SizedBox(),
                                  Validators.stringNotNullOrEmpty(value
                                          .currentItems[index].quantity
                                          .formatNumtoStringDecimal())
                                      ? Flexible(
                                          child: Text(
                                              "${value.currentItems[index].quantity.formatNumtoStringDecimal() ?? ""} ${value.currentItems[index].supplyUnit ?? ""}"))
                                      : SizedBox(),
                                ],
                              ),
                            ),
                          )),
                          Positioned(
                            top: -10,
                            right: -10,
                            child: IconButton(
                                icon: Icon(
                                  Icons.cancel,
                                  color: Colors.redAccent,
                                ),
                                onPressed: () {
                                  changeSupplyUsing.deleteSupply(index);
                                }),
                          )
                        ],
                      )));
                }));
      }
    });
  }

  Widget _btnSelectSubstrates() {
    return GetBuilder<ChangeSupply>(builder: (data) {
      var isValid = changeSelectedSupply.isValid;
      return FlatButton(
          padding:
              EdgeInsets.only(top: 0.0, right: 0.0, bottom: 0.0, left: 0.0),
          onPressed: () {
            var currentIndexEdit = changeSupplyUsing.currentIndex;
            Navigator.of(context)
                .push(MaterialPageRoute(
                    builder: (_) => ResourceHelperScreen(
                          titleName: "Hoá chất xử lý",
                          type: ConstCommon.supplyTypeAll,
                          selectedId: changeSelectedSupply.selectedSupplyId,
                          currentItems: changeSupplyUsing.currentItems,
                          currentEditId: (currentIndexEdit >= 0)
                              ? changeSupplyUsing.currentItems[currentIndexEdit]
                                  .tbSuppliesInWarehouseId
                              : -1,
                        ),
                    fullscreenDialog: false))
                .then((value) {
              if (value != null) {
                var result = value as Supply;
                changeSelectedSupply.change(result);
                changeUnit.updateListByUnitName(result.unit);
                changeFormField.change(true);
              }
            });
          },
          child: GetBuilder<ChangeSupply>(builder: (_) {
            var isValid = changeSelectedSupply.isValid;
            return Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: [
                Container(
                    padding: EdgeInsets.only(
                        top: 0.0, right: 0.0, bottom: 10.5, left: 0.0),
                    decoration: BoxDecoration(
                      border: Border(
                          bottom: BorderSide(
                              width: 1,
                              color: isValid ? Colors.grey : Colors.red[900])),
                    ),
                    child: Column(
                      crossAxisAlignment: CrossAxisAlignment.start,
                      children: [
                        Text(
                          'Hoá chất xử lý *',
                          style: TextStyle(
                              fontSize: 13,
                              fontWeight: FontWeight.normal,
                              color:
                                  isValid ? Colors.black54 : Colors.red[600]),
                        ),
                        Row(
                          children: [
                            Expanded(
                                child: Text(
                                    changeSelectedSupply.selectedSupplyName ??
                                        "Hoá chất xử lý",
                                    style: TextStyle(
                                        fontSize: 14.0,
                                        color: Colors.black87))),
                            Icon(
                              Icons.arrow_drop_down,
                              color: Colors.grey,
                            ),
                          ],
                        )
                      ],
                    )),
                isValid ? SizedBox() : WidgetErrorTextField()
              ],
            );
          }));
    });
  }

  Widget _dropdownUnitTypes() {
    return GetBuilder<ChangeUnit>(builder: (data) {
      return DropdownButtonFormField<String>(
        itemHeight: 100,
        value: data.selectedUnit.isEmpty ? null : data.selectedUnit,
        items: data.currentUnits
            .map((label) => DropdownMenuItem(
                  child: Text(label),
                  value: label,
                ))
            .toList(),
        onChanged: (value) {
          var currentQuantity = _quantityController.text;
          num assignValue = currentQuantity.parseDoubleThousand();
          if (assignValue != null) {
            var oldSelected = data.selectedUnit;
            if (oldSelected == value) {
            } else {
              assignValue = UtilAction.convertUnit(
                  inputValue: assignValue,
                  oldUnit: oldSelected,
                  newUnit: value);
            }
            _quantityController.text = assignValue.formatNumtoStringDecimal();
          }
          changeUnit.updateSelected(value);
        },
      );
    });
  }

  _quantityField() {
    return WidgetTextFormFieldNumber(
      hintValue: "Tổng lượng sử dụng *",
      textController: _quantityController,
      validator: (String value) {
        return Validators.validateNotNullOrEmpty(
            value, label_validate_input_empty);
      },
      onChanged: (value) {
        if (!Validators.stringNotNullOrEmpty(value) &&
            !Validators.stringNotNullOrEmpty(_dosageController.text) &&
            Get.find<ChangeSupply>().selectedSupplyId <= 0) {
          changeFormField.change(false);
        } else {
          changeFormField.change(true);
        }
      },
    );
  }

  _buttonInForm() {
    return GetBuilder<ChangeButtonInForm>(builder: (_) {
      return Row(
        mainAxisAlignment: MainAxisAlignment.start,
        children: [
          _.isEdit
              ? OutlineButton(
                  shape: RoundedRectangleBorder(
                      borderRadius: new BorderRadius.circular(8.0)),
                  child: Text("Huỷ"),
                  onPressed: () {
                    changeButton.resetValue();
                    _resetForm();
                    _hidenKeyboard(context);
                  })
              : SizedBox(),
          _.isEdit
              ? Expanded(
                  child: FlatButton(
                      onPressed: () {
                        if (_formSupplyKey.currentState.validate()) {
                          _formSupplyKey.currentState.save();
                          if (changeSelectedSupply.selectedSupplyId <= 0) {
                            changeSelectedSupply.changeValid(false);
                          } else {
                            changeSelectedSupply.changeValid(true);
                          }
                          var currentSupply =
                              changeSelectedSupply.currentSupply;
                          if (currentSupply.id != null) {
                            var quantityWithCurrentSupplyUnit =
                                UtilAction.convertUnit(
                                    inputValue: _quantityController.text
                                        .parseDoubleThousand(),
                                    oldUnit: changeUnit.selectedUnit,
                                    newUnit: changeSelectedSupply
                                        .currentSupply.unit);
                            SuppliesUsing newSup = SuppliesUsing()
                              ..dosage = _dosageController.text
                              ..quantity = quantityWithCurrentSupplyUnit
                              ..tbSuppliesInWarehouseId = currentSupply.id
                              ..suppliesInWarehouseId = currentSupply.id
                              ..supplyName = currentSupply.tbSuppliesName
                              ..supplyUnit = currentSupply.unit
                              ..unit = currentSupply.unit;
                            changeSupplyUsing.editSupply(
                                changeSupplyUsing.currentIndex, newSup);
                            _resetForm();
                            _hidenKeyboard(context);
                          }
                        } else {
                          Utils.showSnackBarWarning(
                              message: "Vui lòng nhập hoá chất và số lượng");
                          if (changeSelectedSupply.selectedSupplyId <= 0) {
                            changeSelectedSupply.changeValid(false);
                          } else {
                            changeSelectedSupply.changeValid(true);
                          }
                        }
                      },
                      child: Text(
                        "Sửa hoá chất xử lý",
                        style: TextStyle(color: Colors.blue),
                      )),
                )
              : Expanded(
                  child: FlatButton(
                      onPressed: () {
                        if (_formSupplyKey.currentState.validate()) {
                          _formSupplyKey.currentState.save();
                          if (changeSelectedSupply.selectedSupplyId <= 0) {
                            changeSelectedSupply.changeValid(false);
                          } else {
                            changeSelectedSupply.changeValid(true);
                          }
                          var currentSupply =
                              changeSelectedSupply.currentSupply;
                          if (currentSupply.id != null) {
                            var quantityWithCurrentSupplyUnit =
                                UtilAction.convertUnit(
                                    inputValue: _quantityController.text
                                        .parseDoubleThousand(),
                                    oldUnit: changeUnit.selectedUnit,
                                    newUnit: changeSelectedSupply
                                        .currentSupply.unit);
                            SuppliesUsing newSup = SuppliesUsing()
                              ..dosage = _dosageController.text
                              ..quantity = quantityWithCurrentSupplyUnit
                              ..tbSuppliesInWarehouseId = currentSupply.id
                              ..suppliesInWarehouseId = currentSupply.id
                              ..supplyName = currentSupply.tbSuppliesName
                              ..supplyUnit = currentSupply.unit
                              ..unit = currentSupply.unit;
                            changeSupplyUsing.addSupply(newSup);
                            _resetForm();
                            _hidenKeyboard(context);
                          }
                        } else {
                          Utils.showSnackBarWarning(
                              message: "Vui lòng nhập hoá chất và số lượng");
                          if (changeSelectedSupply.selectedSupplyId <= 0) {
                            changeSelectedSupply.changeValid(false);
                          } else {
                            changeSelectedSupply.changeValid(true);
                          }
                          //
                        }
                      },
                      child: Text(
                        "+ Thêm hoá chất xử lý",
                        style: TextStyle(color: Colors.blue),
                      )),
                )
        ],
      );
    });
  }

  Widget _formEdit() {
    return Container(
        padding: EdgeInsets.all(8.0),
        margin: EdgeInsets.all(8.0),
        decoration: BoxDecoration(
            shape: BoxShape.rectangle,
            borderRadius: BorderRadius.circular(10),
            color: Colors.white,
            border: Border.all(color: Colors.grey[300])),
        child: Form(
          key: _formSupplyKey,
          child: Column(
            children: [
              _btnSelectSubstrates(),
              TextFormField(
                keyboardType: TextInputType.text,
                controller: _dosageController,
                decoration: InputDecoration(labelText: "Liều lượng"),
                onSaved: (newValue) {},
                onChanged: (value) {
                  if (!Validators.stringNotNullOrEmpty(
                          _quantityController.text) &&
                      !Validators.stringNotNullOrEmpty(value) &&
                      Get.find<ChangeSupply>().selectedSupplyId <= 0) {
                    changeFormField.change(false);
                  } else {
                    changeFormField.change(true);
                  }
                },
              ),
              Row(
                  mainAxisSize: MainAxisSize.min,
                  mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                  crossAxisAlignment: CrossAxisAlignment.center,
                  children: [
                    Expanded(
                      flex: 2,
                      child: Container(
                        height: 82,
                        child: _quantityField(),
                      ),
                    ),
                    SizedBox(
                      width: 16.0,
                    ),
                    Expanded(
                        flex: 1,
                        child: Align(
                          alignment: Alignment.bottomCenter,
                          child: _dropdownUnitTypes(),
                        )),
                  ]),
              _buttonInForm()
            ],
          ),
        ));
  }

  _resetForm() {
    changeSupplyUsing.changeIndexEdit(-1);
    changeButton.resetValue();
    _dosageController.text = "";
    _quantityController.text = "";
    changeUnit.initValue();
    changeSelectedSupply.initValue();
    changeFormField.change(false);
  }

  _hidenKeyboard(BuildContext context) {
    FocusScopeNode currentFocus = FocusScope.of(context);
    if (!currentFocus.hasPrimaryFocus) {
      currentFocus.unfocus();
    }
  }

  @override
  Widget build(BuildContext context) {
    return Column(
      children: [
        Padding(
          padding: const EdgeInsets.all(8.0),
          child: Align(
            alignment: Alignment.centerLeft,
            child: Text(
              'Hoá chất xử lý',
              style: TextStyle(color: Colors.black54, fontSize: 14),
            ),
          ),
        ),
        _buildListSupply(),
        SizedBox(
          height: 8.0,
        ),
        _formEdit()
      ],
    );
  }
}