import { isFunction } from "../../../../../../@vue/shared/dist/shared.esm-bundler.mjs";
import { CHECKED_CHANGE_EVENT } from "../transfer-panel.mjs";
import { usePropsAlias } from "./use-props-alias.mjs";
import { computed, watch } from "vue";
const useCheck = (props, panelState, emit) => {
  const propsAlias = usePropsAlias(props);
  const filteredData = computed(() => {
    return props.data.filter((item) => {
      if (isFunction(props.filterMethod)) return props.filterMethod(panelState.query, item);
      else return String(item[propsAlias.value.label] || item[propsAlias.value.key]).toLowerCase().includes(panelState.query.toLowerCase());
    });
  });
  const checkableData = computed(() => filteredData.value.filter((item) => !item[propsAlias.value.disabled]));
  const checkedSummary = computed(() => {
    const checkedLength = panelState.checked.length;
    const dataLength = props.data.length;
    const { noChecked, hasChecked } = props.format;
    if (noChecked && hasChecked) return checkedLength > 0 ? hasChecked.replace(/\${checked}/g, checkedLength.toString()).replace(/\${total}/g, dataLength.toString()) : noChecked.replace(/\${total}/g, dataLength.toString());
    else return `${checkedLength}/${dataLength}`;
  });
  const isIndeterminate = computed(() => {
    const checkedLength = panelState.checked.length;
    return checkedLength > 0 && checkedLength < checkableData.value.length;
  });
  const updateAllChecked = () => {
    const checkableDataKeys = checkableData.value.map((item) => item[propsAlias.value.key]);
    panelState.allChecked = checkableDataKeys.length > 0 && checkableDataKeys.every((item) => panelState.checked.includes(item));
  };
  const handleAllCheckedChange = (value) => {
    panelState.checked = value ? checkableData.value.map((item) => item[propsAlias.value.key]) : [];
  };
  watch(() => panelState.checked, (val, oldVal) => {
    updateAllChecked();
    if (panelState.checkChangeByUser) emit(CHECKED_CHANGE_EVENT, val, val.concat(oldVal).filter((v) => !val.includes(v) || !oldVal.includes(v)));
    else {
      emit(CHECKED_CHANGE_EVENT, val);
      panelState.checkChangeByUser = true;
    }
  });
  watch(checkableData, () => {
    updateAllChecked();
  });
  watch(() => props.data, () => {
    const checked = [];
    const filteredDataKeys = filteredData.value.map((item) => item[propsAlias.value.key]);
    panelState.checked.forEach((item) => {
      if (filteredDataKeys.includes(item)) checked.push(item);
    });
    panelState.checkChangeByUser = false;
    panelState.checked = checked;
  });
  watch(() => props.defaultChecked, (val, oldVal) => {
    if (oldVal && val.length === oldVal.length && val.every((item) => oldVal.includes(item))) return;
    const checked = [];
    const checkableDataKeys = checkableData.value.map((item) => item[propsAlias.value.key]);
    val.forEach((item) => {
      if (checkableDataKeys.includes(item)) checked.push(item);
    });
    panelState.checkChangeByUser = false;
    panelState.checked = checked;
  }, { immediate: true });
  return {
    filteredData,
    checkableData,
    checkedSummary,
    isIndeterminate,
    updateAllChecked,
    handleAllCheckedChange
  };
};
export {
  useCheck
};
