import Mock from "mockjs";

/** 返回成功数据 */
export const resultSuccess = (data: unknown) => {
  return Mock.mock({
    code: 200,
    data,
    message: "请求成功",
    success: true
  });
};

/** 返回失败数据 */
export const resultError = (data: unknown, message: string, code = 500) => {
  return Mock.mock({
    code,
    data,
    message,
    success: false
  });
};

/**
 * 路由树递归排序
 * 1、先给当前层排序
 * 2、若当前层有children则递归排序
 * @param {array} tree 根据角色权限过滤后的路由树
 * @returns 返回排序之后的树
 */
export const treeSort = (tree: Menu.MenuOptions[]) => {
  if (!tree || tree.length == 0) return [];
  tree.sort((a: Menu.MenuOptions, b: Menu.MenuOptions) => {
    // a和b都是undefined则相等
    if (a.meta.sort != 0 && !a.meta.sort && b.meta.sort != 0 && !b.meta.sort) {
      return 0;
    }
    // a是undefined则a被排在b之后
    if (a.meta.sort != 0 && !a.meta.sort) return 1;
    // b是undefined则b被排在a之后
    if (b.meta.sort != 0 && !b.meta.sort) return -1;
    return a.meta.sort - b.meta.sort;
  });

  // 深层递归
  return tree.map((item: any) => {
    if (item?.children?.length > 0) {
      item.children = treeSort(item.children);
    }
    return item;
  });
};

/**
 * 过滤路由树，返回有权限的树
 * 1、先过滤停用的菜单，该菜单是不可访问的，直接去掉
 * 2、根据角色权限过滤原始路由树
 * @param {array} tree 根据角色权限过滤原始路由树
 * @returns 返回有权限的树
 */
export const filterByRole = (tree: any, userRoles: Array<string>) => {
  return tree.filter((item: any) => {
    // 过滤角色权限
    if (item?.meta?.roles) {
      if (!roleBase(item.meta.roles, userRoles)) return false;
    }
    // 过滤是否禁用
    if (item?.meta?.disable) return false;
    if (item.children) item.children = filterByRole(item.children, userRoles);
    return true;
  });
};

/**
 * 校验该角色是否有路由权限
 * @param {array} roles 路由的角色权限
 * @returns 是否有权限 true是 false否
 */
export const roleBase = (roles: Array<string>, userRoles: Array<string>) => {
  return userRoles.some((item: string) => roles.includes(item));
};

/**
 * 深拷贝
 * @param { string } data 需要深拷贝的数据
 * @returns 深拷贝的数据
 */
export function deepClone(data: any) {
  let stack = [];
  let cloned;
  if (Array.isArray(data)) {
    cloned = [];
  } else if (typeof data === "object" && data !== null) {
    cloned = {};
  } else {
    return data;
  }
  stack.push({
    original: data,
    copy: cloned
  });
  while (stack.length > 0) {
    let current: any = stack.pop();
    let original = current.original;
    let copy = current.copy;

    for (let key in original) {
      if (original.hasOwnProperty(key)) {
        let value = original[key];

        if (typeof value === "object" && value !== null) {
          copy[key] = Array.isArray(value) ? [] : {};

          stack.push({
            original: value,
            copy: copy[key]
          });
        } else {
          copy[key] = value;
        }
      }
    }
  }
  return cloned;
}