import { CHILD_GROUP_PREFIX } from "./constants";

export const tranValueBySetChildGroup = (params) => {
  const { value, componentOptions } = params;
  if (!Array.isArray(value)) {
    return value;
  }
  let newValue = [...value];
  componentOptions.forEach((item) => {
    if (String(item.value).startsWith(CHILD_GROUP_PREFIX) && item.children) {
      const allChildrenSelected =
        item.children.length && item.children.every((child) => newValue.includes(child.value));
      if (allChildrenSelected) {
        newValue.push(item.value);
      }
    }
    if (item.children?.length > 0) {
      newValue = tranValueBySetChildGroup({ value: newValue, componentOptions: item.children });
    }
  });
  return newValue;
};

export const getChildGroupChildValues = (params) => {
  const { value: childGroupValue, componentOptions } = params;
  for (let i = 0; i < componentOptions.length; i++) {
    const item = componentOptions[i];
    if (item.value === childGroupValue) {
      return item.children ? item.children.map((child) => child.value) : [];
    }
    if (item.children?.length > 0) {
      const result = getChildGroupChildValues({
        value: childGroupValue,
        componentOptions: item.children,
      });
      if (result.length) {
        return result;
      }
    }
  }
  return [];
};

export const getCalcNewValue = (params) => {
  const { oldValue, newValue, componentOptions } = params;
  if (!Array.isArray(newValue) || !Array.isArray(oldValue)) {
    return newValue;
  }
  const oldChildGroupValues = oldValue.filter((item) => item.startsWith(CHILD_GROUP_PREFIX));
  const newChildGroupValues = newValue.filter((item) => item.startsWith(CHILD_GROUP_PREFIX));
  // 说明是取消分组
  if (oldChildGroupValues.length - newChildGroupValues.length >= 1) {
    let cancelChildValue;
    oldChildGroupValues.forEach((item) => {
      if (!newChildGroupValues.includes(item)) {
        cancelChildValue = item;
      }
    });
    const childGroupChildValues = getChildGroupChildValues({
      value: cancelChildValue,
      componentOptions,
    });
    return newValue.filter(
      (item) => !childGroupChildValues.includes(item) && !item.startsWith(CHILD_GROUP_PREFIX),
    );
  }
  // 说明是添加分组
  if (newChildGroupValues.length - oldChildGroupValues.length >= 1) {
    let addChildValue;
    newChildGroupValues.forEach((item) => {
      if (!oldChildGroupValues.includes(item)) {
        addChildValue = item;
      }
    });
    const childGroupChildValues = getChildGroupChildValues({
      value: addChildValue,
      componentOptions,
    });
    return newValue
      .concat(childGroupChildValues)
      .filter((item) => !item.startsWith(CHILD_GROUP_PREFIX));
  }
  return newValue.filter((item) => !item.startsWith(CHILD_GROUP_PREFIX));
};