import { defineComponent, computed, provide, toRefs, watch, openBlock, createBlock, resolveDynamicComponent, unref, normalizeClass, withCtx, renderSlot, createElementBlock, Fragment, renderList, mergeProps, nextTick } from 'vue';
import { pick, isEqual } from 'lodash-unified';
import { checkboxGroupProps, checkboxGroupEmits, checkboxDefaultProps } from './checkbox-group.mjs';
import { checkboxGroupContextKey } from './constants.mjs';
import Checkbox from './checkbox.mjs';
import _export_sfc from '../../../_virtual/plugin-vue_export-helper.mjs';
import { useNamespace } from '../../../hooks/use-namespace/index.mjs';
import { useFormItem, useFormItemInputId } from '../../form/src/hooks/use-form-item.mjs';
import { debugWarn } from '../../../utils/error.mjs';
import { UPDATE_MODEL_EVENT, CHANGE_EVENT } from '../../../constants/event.mjs';

const __default__ = defineComponent({
  name: "ElCheckboxGroup"
});
const _sfc_main = /* @__PURE__ */ defineComponent({
  ...__default__,
  props: checkboxGroupProps,
  emits: checkboxGroupEmits,
  setup(__props, { emit }) {
    const props = __props;
    const ns = useNamespace("checkbox");
    const { formItem } = useFormItem();
    const { inputId: groupId, isLabeledByFormItem } = useFormItemInputId(props, {
      formItemContext: formItem
    });
    const changeEvent = async (value) => {
      emit(UPDATE_MODEL_EVENT, value);
      await nextTick();
      emit(CHANGE_EVENT, value);
    };
    const modelValue = computed({
      get() {
        return props.modelValue;
      },
      set(val) {
        changeEvent(val);
      }
    });
    const aliasProps = computed(() => ({
      ...checkboxDefaultProps,
      ...props.props
    }));
    const getOptionProps = (option) => {
      const base = {
        label: option[aliasProps.value.label],
        value: option[aliasProps.value.value],
        disabled: option[aliasProps.value.disabled]
      };
      return { ...option, ...base };
    };
    provide(checkboxGroupContextKey, {
      ...pick(toRefs(props), [
        "size",
        "min",
        "max",
        "disabled",
        "validateEvent",
        "fill",
        "textColor"
      ]),
      modelValue,
      changeEvent
    });
    watch(() => props.modelValue, (newVal, oldValue) => {
      if (props.validateEvent && !isEqual(newVal, oldValue)) {
        formItem == null ? void 0 : formItem.validate("change").catch((err) => debugWarn());
      }
    });
    return (_ctx, _cache) => {
      var _a;
      return openBlock(), createBlock(resolveDynamicComponent(_ctx.tag), {
        id: unref(groupId),
        class: normalizeClass(unref(ns).b("group")),
        role: "group",
        "aria-label": !unref(isLabeledByFormItem) ? _ctx.ariaLabel || "checkbox-group" : void 0,
        "aria-labelledby": unref(isLabeledByFormItem) ? (_a = unref(formItem)) == null ? void 0 : _a.labelId : void 0
      }, {
        default: withCtx(() => [
          renderSlot(_ctx.$slots, "default", {}, () => [
            (openBlock(true), createElementBlock(Fragment, null, renderList(props.options, (item, index) => {
              return openBlock(), createBlock(Checkbox, mergeProps({ key: index }, getOptionProps(item)), null, 16);
            }), 128))
          ])
        ]),
        _: 3
      }, 8, ["id", "class", "aria-label", "aria-labelledby"]);
    };
  }
});
var CheckboxGroup = /* @__PURE__ */ _export_sfc(_sfc_main, [["__file", "checkbox-group.vue"]]);

export { CheckboxGroup as default };
//# sourceMappingURL=checkbox-group2.mjs.map