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MPP auto-refresh connection

small userscript that refreshes the page automatically if connecting to mpp takes too long

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(Tôi đã có Trình quản lý tập lệnh người dùng, hãy cài đặt nó!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         MPP auto-refresh connection
// @version      1.0.0 (beta test)
// @description  small userscript that refreshes the page automatically if connecting to mpp takes too long
// @author       ccjt
// @match        *://*/*
// @license      MIT
// @namespace    https://greasyfork.org/users/1459137
// ==/UserScript==

let refreshTimeout = 5e3 // adjust as needed, in milliseconds (5e3 = 5000)
if (typeof MPP !== 'undefined' && typeof MPP === 'object') {
    let connected
    let connectionOpened = null
    MPP.client.ws.onopen = () => {
        // .startsWith because of url formatting quirkiness
        if (!MPP.client.ws.url.startsWith('wss://mppclone.com')) return
        connectionOpened = Date.now()

        function connectedCheck() {
            if (Date.now() - connectionOpened > refreshTimeout && !MPP.client.isConnected()) {
                let failedDiv = document.createElement('div')
                failedDiv.style.cssText = `
                width: 100vw;
                height: 100vh;
                position: fixed;
                top: 0;
                left: 0;
                background-color: #000a;
                backdrop-filter: saturate(150%) blur(10px);
                display: flex;
                flex-direction: column;
                align-items: center;
                justify-content: center;
                gap: 20px;
                opacity: 0%;
                transition: opacity .5s ease;
                `
                document.body.appendChild(failedDiv)
                requestAnimationFrame(()=>{
                    let i = 2
                    let failedText = document.createElement('a')
                    failedText.textContent = `connection timed out (${refreshTimeout / 1e3}s), refreshing in ${i}s`
                    failedDiv.appendChild(failedText)
                    failedDiv.style.opacity = '100%'
                    setInterval(()=>{
                        i--
                        failedText.textContent = `connection failed, refreshing in ${i}s`
                        if (i <= 0) window.location.reload()
                    }, 1e3)
                })
                return
            }
            requestAnimationFrame(connectedCheck())
        }
        connectedCheck()
    }
}