VitalApp/lib/pages/check/widgets/exam_configurable/exam_date.dart

import 'package:fis_common/index.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:intl/intl.dart';
import 'package:vitalapp/components/dialog_date.dart';
import 'package:vitalapp/components/dialog_time.dart';
import 'package:vitalapp/pages/check/models/form.dart';
import 'package:vitalapp/pages/form/form_info.dart';

import 'exam_card.dart';

class ExamDate extends StatefulWidget {
  final FormObject currentFormObject;
  final String? currentInputValue;

  const ExamDate({
    required this.currentFormObject,
    this.currentInputValue,
  });

  @override
  State<StatefulWidget> createState() {
    return ExamDateState();
  }
}

class ExamDateState extends State<ExamDate> {
  String _currentValue = '';
  bool _isDisabledValue = false;

  @override
  void initState() {
    _currentValue = widget.currentInputValue ?? '';
    if (FormInfo.instance.formValue.containsKey(widget.currentFormObject.key)) {
      _currentValue = FormInfo.instance.formValue[widget.currentFormObject.key];
    }
    super.initState();
    FormInfo.instance.onChangeTargetValue.addListener(_onChangeTargetValue);
  }

  @override
  void dispose() {
    FormInfo.instance.onChangeTargetValue.removeListener(_onChangeTargetValue);
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return ExamCard(
      title: widget.currentFormObject.label ?? '',
      color: _isDisabledValue ? Colors.grey[300]! : Colors.white,
      clickCard: _clickCard,
      content: Container(
        alignment: Alignment.bottomRight,
        padding: const EdgeInsets.only(
          right: 30,
          left: 40,
        ),
        child: Text(
          _currentValue,
          style: TextStyle(
            fontSize: 26,
            color: Colors.black,
            fontFamily: "NotoSansSC",
            fontFamilyFallback: const ["NotoSansSC"],
          ),
        ),
      ),
    );
  }

  Future<void> _clickCard() async {
    if (_isDisabledValue) {
      return;
    }
    DateTime now = DateTime.now();
    DateTime? result;
    DateTime initialDate = now;
    if (_currentValue.isNotNullOrEmpty) {
      initialDate = DateTime.parse(_currentValue);
    }
    if (kIsWeb) {
      result = await showDatePicker(
        context: Get.context!,
        initialDate: initialDate,
        firstDate: DateTime(1900),
        lastDate: DateTime(2100),
      );
    } else {
      result = await VDialogDate(
        minimumDate: DateTime(1900),
        initialValue: initialDate,
      ).show();
    }
    if (result != null) {
      final DateFormat formatter = DateFormat('yyyy-MM-dd');
      var value = formatter.format(result);
      setState(() {
        _currentValue = value;
      });
      FormInfo.instance.formValue[widget.currentFormObject.key!] = value;
      FormInfo.instance.onValueChange.emit(
        this,
        UpdateFormArgs(
          sourceKey: widget.currentFormObject.key ?? '',
          sourceValue: value,
        ),
      );
    }
  }

  void _onChangeTargetValue(Object sender, TargetFormArgs e) {
    if (e.targetKey != widget.currentFormObject.key) {
      return;
    }
    if (e.isDisabledValue) {
      setState(() {
        _isDisabledValue = true;
      });
    } else if (!e.isDisabledValue) {
      setState(() {
        _isDisabledValue = false;
      });
    }
    setState(() {
      _currentValue = e.targetValue;
    });
  }
}