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

import 'package:fis_common/index.dart';
import 'package:flutter/material.dart';
import 'package:vitalapp/consts/styles.dart';
import 'package:vitalapp/pages/check/models/form.dart';
import 'package:vitalapp/pages/check/widgets/exam_configurable/exam_radio_and_select.dart';
import 'package:vitalapp/pages/check/widgets/exam_title.dart';
import 'package:vitalapp/pages/form/form_info.dart';

class ExamSingleOption extends StatefulWidget {
  const ExamSingleOption({
    super.key,
    required this.currentFormObject,
    required this.option,
    required this.isSelected,
  });
  final FormObject currentFormObject;
  final Option option;
  final bool isSelected;

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

class ExamSingleOptionState extends State<ExamSingleOption> {
  FormObject get currentFormObject => widget.currentFormObject;
  bool _isSelected = false;
  bool _isDisabledValue = false;

  @override
  void initState() {
    _isSelected = widget.isSelected;
    if (FormInfo.instance.formValue.containsKey(currentFormObject.parentKey!)) {
      var formValue = FormInfo.instance.formValue[currentFormObject.parentKey!];
      if (formValue is List) {
        _isSelected = formValue.contains(currentFormObject.key);
        if (_isSelected)
          Future.delayed(Duration(milliseconds: 200), () {
            FormInfo.instance.onValueChange.emit(
              this,
              UpdateFormArgs(
                sourceKey: widget.currentFormObject.parentKey ?? '',
                sourceValue: currentFormObject.key,
                type: UpdateFormType.Add,
              ),
            );
          });
      }
    }
    super.initState();
    FormInfo.instance.onChangeTargetValue.addListener(_onChangeTargetValue);
  }

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

  @override
  Widget build(BuildContext context) {
    return Container(
      padding: const EdgeInsets.all(7),
      child: InkWell(
        onTap: () => selectRaidoChange(),
        borderRadius: BorderRadius.circular(8),
        child: Card(
          elevation: 6,
          shape: RoundedRectangleBorder(
            borderRadius: GlobalStyles.borderRadius,
          ),
          child: Material(
            color: _isDisabledValue ? Colors.grey[300] : Colors.white,
            borderRadius: GlobalStyles.borderRadius,
            child: Ink(
              decoration: BoxDecoration(
                border: Border.all(
                  color: _isSelected ? Colors.blue : Colors.black26,
                ),
                borderRadius: const BorderRadius.all(
                  Radius.circular(8),
                ),
                color: _isSelected ? Colors.blue : Colors.transparent,
              ),
              child: Container(
                padding: const EdgeInsets.all(15),
                alignment: Alignment.center,
                width: 250,
                child: FittedBox(
                  child: Text(
                    widget.option.label ?? '',
                    style: TextStyle(
                      fontSize: 20,
                      color: _isSelected ? Colors.white : Colors.black54,
                    ),
                  ),
                ),
              ),
            ),
          ),
        ),
      ),
    );
  }

  void selectRaidoChange() {
    if (_isDisabledValue) {
      return;
    }
    setState(() {
      _isSelected = !_isSelected;
    });
    onValueChange();
  }

  ///当前选中的值改变
  void onValueChange() {
    UpdateFormType type = UpdateFormType.Add;
    if (_isSelected) {
      if (FormInfo.instance.formValue
          .containsKey(currentFormObject.parentKey!)) {
        var sourceValue =
            FormInfo.instance.formValue[currentFormObject.parentKey!] as List;
        sourceValue.add(currentFormObject.key!);
      } else {
        FormInfo.instance.formValue[currentFormObject.parentKey!] = [
          currentFormObject.key
        ];
      }

      type = UpdateFormType.Add;
    } else if (FormInfo.instance.formValue
        .containsKey(currentFormObject.parentKey!)) {
      FormInfo.instance.formValue.remove(currentFormObject.parentKey!);
      type = UpdateFormType.Remove;
    }
    FormInfo.instance.onValueChange.emit(
      this,
      UpdateFormArgs(
        sourceKey: widget.currentFormObject.parentKey ?? '',
        sourceValue: currentFormObject.key,
        type: type,
      ),
    );
  }

  ///其他控件的改变、通知到本控件
  void _onChangeTargetValue(Object sender, TargetFormArgs e) {
    if (e.targetKey != widget.currentFormObject.key) {
      return;
    }
    if (e.isDisabledValue) {
      setState(() {
        _isSelected = false;
        _isDisabledValue = true;
      });
    } else if (!e.isDisabledValue) {
      setState(() {
        _isDisabledValue = false;
      });
    }
    if (e.targetValue == "cancelSelection" && _isSelected) {
      setState(() {
        _isSelected = false;
      });
    }
  }
}