import { effect, h } from '@ui-arch/frame';
import type { CheckboxProps } from './types.js';

/*** 复选框：checked 信号双向绑定，disabled 支持布尔或信号禁用，onChange 为变更回调 ***/
export function checkbox(props: CheckboxProps): HTMLElement {
  const el = h('input', { type: 'checkbox', class: 'ua-checkbox', disabled: props.disabled }) as HTMLInputElement; // false/undefined 移除属性，Signal 走响应式
  if (props.checked) {
    const checked = props.checked;
    el.addEventListener('change', () => checked(el.checked)); // 用户勾选写回信号
    effect(() => {
      if (el.checked !== checked()) el.checked = checked(); // 外部变化写回勾选框
    });
  }
  if (props.onChange) el.addEventListener('change', () => props.onChange!(el.checked));
  if (!props.label) return el;
  const wrap = h('label', { class: 'ua-check-row' }, el, props.label);
  return wrap;
}