/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import React from "react";
import PromiseRender from "./PromiseRender";
import { CURRENT } from "./renderAuthorize";

function isPromise(obj) {
  return (
    !!obj &&
    (typeof obj === "object" || typeof obj === "function") &&
    typeof obj.then === "function"
  );
}

/**
 * 通用权限检查方法
 * Common check permissions method
 * @param { 权限判定 Permission judgment type string |array | Promise | Function } authority
 * @param { 你的权限 Your permission description  type:string} currentAuthority
 * @param { 通过的组件 Passing components } target
 * @param { 未通过的组件 no pass components } Exception
 */
const checkPermissions = (authority, currentAuthority, target, Exception) => {
  // 没有判定权限.默认查看所有
  // Retirement authority, return target;
  if (!authority) {
    return target;
  }
  // 数组处理
  if (Array.isArray(authority)) {
    if (authority.indexOf(currentAuthority) >= 0) {
      return target;
    }
    if (Array.isArray(currentAuthority)) {
      for (let i = 0; i < currentAuthority.length; i += 1) {
        const element = currentAuthority[i];
        if (authority.indexOf(element) >= 0) {
          return target;
        }
      }
    }
    return Exception;
  }

  // string 处理
  if (typeof authority === "string") {
    if (authority === currentAuthority) {
      return target;
    }
    if (Array.isArray(currentAuthority)) {
      for (let i = 0; i < currentAuthority.length; i += 1) {
        const element = currentAuthority[i];
        if (authority.indexOf(element) >= 0) {
          return target;
        }
      }
    }
    return Exception;
  }

  // Promise 处理
  if (isPromise(authority)) {
    return <PromiseRender ok={target} error={Exception} promise={authority} />;
  }

  // Function 处理
  if (typeof authority === "function") {
    // eslint-disable-next-line no-useless-catch
    try {
      const bool = authority(currentAuthority);
      // 函数执行后返回值是 Promise
      if (isPromise(bool)) {
        return <PromiseRender ok={target} error={Exception} promise={bool} />;
      }
      if (bool) {
        return target;
      }
      return Exception;
    } catch (error) {
      throw error;
    }
  }
  throw new Error("unsupported parameters");
};

export { checkPermissions };

const check = (authority, target, Exception) => {
  return checkPermissions(authority, CURRENT, target, Exception);
};

export default check;
