// Learn TypeScript:
//  - [Chinese] https://docs.cocos.com/creator/manual/zh/scripting/typescript.html
//  - [English] http://www.cocos2d-x.org/docs/creator/manual/en/scripting/typescript.html
// Learn Attribute:
//  - [Chinese] https://docs.cocos.com/creator/manual/zh/scripting/reference/attributes.html
//  - [English] http://www.cocos2d-x.org/docs/creator/manual/en/scripting/reference/attributes.html
// Learn life-cycle callbacks:
//  - [Chinese] https://docs.cocos.com/creator/manual/zh/scripting/life-cycle-callbacks.html
//  - [English] http://www.cocos2d-x.org/docs/creator/manual/en/scripting/life-cycle-callbacks.html

import { EncryptUtil } from "./EncryptUtil";
import SDK from "../SDK";



const { ccclass, property } = cc._decorator;
export interface LoaderListener {

  onOk(config: any): void;
}

@ccclass
export default class Utils extends cc.Component {
  private _isLoaded = false;
  // private _configUrl = "http://c.zhickeji.com:14000/gts-service/api/terminal/";
  // private _reportUrl = "http://cl.zhickeji.com:14000/gts-service/api/terminal/";
  // private _url = ["https://z.zhickeji.com/api/t/", "https://c.xianyouxx.com/api/xy/","https://ch.chumikj.com/ter/"];
  private _url = ["", "", "https://ch.chumikj.com/ter/"];
  private _isComplete = false;
  private _listener: LoaderListener[] = [];
  private _config: any;
  private static _instance: Utils = null;

  public static get instance(): Utils {
    if (Utils._instance == null) {
      Utils._instance = new Utils();
    }
    return Utils._instance;
  }

  public log(log) {
    if (this._config) {
      if (this._config.logEnable) {
        console.log(log);
      }
    }
  }

  /**随机两数之前的值 */
  public getRandomInt(min, max) {
    return Math.floor(Math.random() * Math.floor(max - min + 1)) + min;
  }

  public loadPrefabs(path, callbacks) {
    this.log("**********loadPrefabs " + path);
    let self = this;
    cc.loader.loadRes(path, (err, loadedResource) => {
      if (err) {
        cc.error(err.message || err);
        self.loadPrefabs(path, callbacks);
        return;
      }
      callbacks(loadedResource);
    });
  }

  /**post请求 */
  public sendPost(url, body) {
    let hasCallBack = false;
    let curUrl = this._url[SDK.Instance.edType] + url;
    this._isComplete = false;
    let u = ["c", "gg", "cnf"];
    if (url == u[SDK.Instance.edType]) {
      hasCallBack = true;
      curUrl = this._url[SDK.Instance.edType] + url;
    }
    this.log("**********net url is: " + curUrl);
    this.log("**********body: " + body);
    if (curUrl == null) {
      this.log("**********net url is null: " + curUrl);
      return;
    }
    body = EncryptUtil.en(body);
    this.log("**********bodyEncrypt : " + body);
    let self = this;
    let req = new XMLHttpRequest();
    let onReadyStateChange = (ev: Event) => {
      if (req.readyState == 4) {
        if (req.status == 200) {
          self.log("ok: " + req.response);
          let reqR = EncryptUtil.de(req.response);
          self.log("reqR ok: " + reqR);
          let obj = JSON.parse(reqR);
          if (obj) {
            if (self._isComplete || !hasCallBack) {
              return;
            }
            self._isComplete = true;
            self.log("reqR ok: " + obj);
            self.ok(obj);
          }
        } else {
          self.ok(null);
        }

      }
    }
    let onTimeOut = (ev: ProgressEvent) => { }
    let onError = (ev: ProgressEvent) => { }
    req.onreadystatechange = onReadyStateChange;
    req.ontimeout = onTimeOut;
    req.onerror = onError;
    req.open("POST", curUrl, true);
    req.setRequestHeader("Content-Type", "application/json");
    req.send(body);
  }


  /**
   * 加载完成
   * 
   * @param config 配置
   */
  public ok(config: any) {
    this._config = config;

    if (config != null) {
      this._isLoaded = true;
    }

    if (this._listener.length > 0) {
      this._listener.forEach(function (lst, index) {
        if (lst != null) {
          lst.onOk(config);
        }
      });
    }
  }

  /**
     * 添加一个监听器
     * 
     * @param listener 监听器
     */
  public addListener(listener: LoaderListener) {
    this._listener.push(listener);
  }

  /**
   * 是否已经加载
   */
  public isLoaded() {
    return this._isLoaded;
  }

  // update (dt) {}
}