苹果官网抢翻新机过程

// ==UserScript==
// @name         RefurbishedAppleMonitor
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  try to take over the world!
// @author       You
// @match        https://www.apple.com.cn/shop/product/G15J4CH/*
// @match        https://www.apple.com.cn/shop/product/G15JECH/*
// @match        https://www.apple.com.cn/shop/product/G15G4CH/*
// @match        https://www.apple.com.cn/shop/product/G15GECH/*
// @match        https://www.apple.com.cn/shop/product/FLXY3CH/*
// @grant        GM_xmlhttpRequest
// ==/UserScript==

const WEBHOOK_URL = "https://oapi.dingtalk.com/robot/send?access_token=钉钉群机器人token"

const webhookNotify=()=>{
  const data ={
    "msgtype": "text",
    "text": {
      "content": "[重要]你想要的MBP上架了，速抢！"
    },
    "at": {
        "atMobiles": [
            "这里填想At人的手机号"
        ]
    }
  }

  GM_xmlhttpRequest({
      method: "POST",
      url: WEBHOOK_URL,
      headers: {
          "Content-Type": "application/json"
      },
      data: JSON.stringify(data),
      onload: function(res){
          console.log("Request complete! response:", res);
      },
      onerror: function(res){
          console.log("请求失败", res);
      }
  });
}

//10 messages in 10 seconds.
const webhookNotifyLoop = (counter=0)=>{
   if(counter < 10){
       console.log('counter:',counter)
       webhookNotify();
       setTimeout(()=>{webhookNotifyLoop(counter+1)}, 1000);
   }
}

const checkIsStockAvailable=()=>{
   var buyButton = document.getElementById("add-to-cart");
   return(!buyButton.disabled)
}

const checkAndAlert = ()=>{
   if(checkIsStockAvailable()){
       console.log('Stock available :)',new Date())
       webhookNotifyLoop()
   }else{
       console.log('Still out of stock:(',new Date())
   }
}

(function() {
   checkAndAlert();
   setTimeout(()=>{ location.reload(); }, 3600*60*1000); //refresh every 60 seconds.avoiding interrupt change to 1 hour
})();