doctor_app_flutter/lib/screens/pharmacy_intervention/widgets/PharmacyInterventionDialog.dart

import 'package:doctor_app_flutter/config/config.dart';
import 'package:doctor_app_flutter/utils/translations_delegate_base_utils.dart';
import 'package:doctor_app_flutter/widgets/shared/buttons/app_buttons_widget.dart';
import 'package:flutter/material.dart';
import 'package:intl/intl.dart';

class PharmacyInterventionDialog extends StatefulWidget {
  final Function(
      String, // dataFrom
      String, // dateTo
      String, // admissionNumber
      String, // patient ID
      String, // nursingStation
      ) onDispose;

  final String dateFrom;
  final String dateTo;
  final String admissionNumber;
  final String patientID;
  final String nursingStation;

  const PharmacyInterventionDialog({super.key,
    required this.onDispose,
    required this.dateFrom,
    required this.dateTo,
    required this.admissionNumber,
    required this.patientID,
    required this.nursingStation});

  @override
  State<PharmacyInterventionDialog> createState() =>
      _PharmacyInterventionDialogState();
}

class _PharmacyInterventionDialogState
    extends State<PharmacyInterventionDialog> {
  final TextEditingController admissionNumber = TextEditingController();
  final TextEditingController nursingStation = TextEditingController();

  final TextEditingController patientId = TextEditingController();

  String dateFrom = '';

  String dateTo = '';

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

  void initData() {
    admissionNumber.text = (widget.admissionNumber == '0')?'':widget.admissionNumber;
    nursingStation.text = (widget.nursingStation == '0')?'':widget.nursingStation;
    patientId.text = (widget.patientID == '0' )?'':widget.patientID;
    dateTo = getDateString(widget.dateTo);
    dateFrom = getDateString(widget.dateFrom);
  }

  @override
  Widget build(BuildContext context) {
    return Dialog(
      backgroundColor: Colors.white,
      shape: RoundedRectangleBorder(
        borderRadius: BorderRadius.circular(8),
      ),
      child: Padding(
        padding: const EdgeInsets.all(24),
        child: Column(
          mainAxisSize: MainAxisSize.min,
          mainAxisAlignment: MainAxisAlignment.end,
          crossAxisAlignment: CrossAxisAlignment.end,
          children: [
            IconButton(
              icon: Icon(Icons.close),
              onPressed: () {
                Navigator.pop(context);
              },
            ),
            SizedBox(height: 8,),
            _titleAndTextField(TranslationBase
                .of(context)
                .nursingStation,
                nursingStation, TextInputType.number),
            SizedBox(
              height: 4,
            ),
            _titleAndTextField(TranslationBase
                .of(context)
                .admissionNumber,
                admissionNumber, TextInputType.number),
            SizedBox(
              height: 4,
            ),
            _titleAndTextField(TranslationBase
                .of(context)
                .patientID, patientId,
                TextInputType.number),
            SizedBox(
              height: 4,
            ),
            _dateSelection(TranslationBase
                .of(context)
                .dateFrom, (date) {
              DateTime? fromDate = getDate(date);
              DateTime? toDate =getDate(dateTo);
              if(toDate == null){
                setState(() {
                  dateFrom = date;
                });
                return;
              }
              if(fromDate!.compareTo(toDate!) == 1){
                setState(() {
                  dateFrom = date;
                  dateTo = '';
                });
                return;
              }
              setState(() {
                dateFrom = date;
              });
            }, dateFrom, false),
            SizedBox(
              height: 4,
            ),
            _dateSelection(TranslationBase
                .of(context)
                .dateTo, (date) {
              setState(() {
                dateTo = date;
              });
            }, dateTo, true, selectedFromDate: dateFrom),
            SizedBox(
              height: 8,
            ),
            Row(children: [
              Expanded(
                child: AppButton(
                  title: TranslationBase
                      .of(context)
                      .search,
                  hasBorder: true,
                  borderColor: Color(0xFFB8382B),
                  color: AppGlobal.appRedColor,
                  fontColor: Colors.white,
                  onPressed: () async {
                    //(dateFrom, dateTo, admissionNumber, patientId, nursingStation)
                    widget.onDispose(dateFrom, dateTo, nursingStation.text,
                        patientId.text, nursingStation.text);
                  },
                ),
              ),
            ]),
          ],
        ),
      ),
    );
  }

  Widget _dateSelection(String title, Function(String) onDateSelected,
      String selectedDate, bool isToDateSelection,{String? selectedFromDate}) {
    return GestureDetector(
      onTap: () => _selectDate(onDateSelected,selectedDate, isToDateSelection , selectedFromDate: selectedFromDate),
      child: Row(
        mainAxisSize: MainAxisSize.min,
        children: [
          Text(title),
          Expanded(
            child: ListTile(
              title: Text(
                selectedDate,
              ),
              trailing: Icon(Icons.arrow_drop_down_outlined),
            ),
          )
        ],
      ),
    );
  }

  Future _selectDate(Function(String) updateDate , String date, bool toDateSelection, {String? selectedFromDate}) async {
    DateTime? dateTime = getDate(date);
    DateTime? fromDate = getDate(selectedFromDate??'');
    final DateTime? picked = await showDatePicker(
        context: context,
        initialDate:date.isNotEmpty? getDate(date) :fromDate != null? fromDate: DateTime.now(),
        firstDate:(( date.isNotEmpty  && dateTime != null ) ) ? dateTime: (toDateSelection  && fromDate != null)?fromDate :DateTime(DateTime
            .now()
            .year - 150),
        lastDate: DateTime(DateTime
            .now()
            .year + 150),
        initialEntryMode: DatePickerEntryMode.calendar,
        builder: (_, child) {
          return Theme(
            data: ThemeData.light().copyWith(
              colorScheme: ColorScheme.fromSwatch(
                primarySwatch: Colors.red,
                accentColor: AppGlobal.appRedColor,
              ),
              dialogBackgroundColor: Colors.white,
            ),
            child: child!,
          );
        });
    if (picked != null) {
      updateDate(getFormattedDate(picked));
    }
    // }
  }

  Widget _titleAndTextField(String title, TextEditingController controller,
      TextInputType? inputType) {
    return Row(
      mainAxisAlignment: MainAxisAlignment.spaceBetween,
      mainAxisSize: MainAxisSize.min,
      children: [
        Text(title),
        Expanded(
          child: TextFormField(
            keyboardType: inputType,
            decoration: InputDecoration(
              hintText: '',
              focusedBorder: InputBorder.none,
              enabledBorder: InputBorder.none,
              contentPadding: EdgeInsetsDirectional.only(start: 10.0),
            ),
            textAlign: TextAlign.end,
            controller: controller,
          ),
        )
      ],
    );
  }

  void initFromDate() {
    var time = DateTime.now();
    dateFrom = getFormattedDate(time);
  }

  String getFormattedDate(DateTime time) {
    return DateFormat('yyyy-MM-dd').format(time);
  }

  String getDateString(String dateTime) {
    if (dateTime.isEmpty) return '';
   DateTime? now = getDate(dateTime);
   if(now == null ) return '';
    return DateFormat('yyyy-MM-dd').format(now);
  }

  DateTime? getDate(String dateTime){
    if (dateTime.isEmpty) return null;
    List<String> splitedDate = dateTime.split('-');
    DateTime now = DateTime(int.parse(splitedDate[0]),
        int.parse(splitedDate[1]), int.parse(splitedDate[2]));
    return now;
  }
}