CafeCoderStandingsColorizer

Colorize the CafeCoder standings page.

K instalaci tototo skriptu si budete muset nainstalovat rozšíření jako Tampermonkey, Greasemonkey nebo Violentmonkey.

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

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Userscripts.

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

K instalaci tohoto skriptu si budete muset nainstalovat manažer uživatelských skriptů.

(Už mám manažer uživatelských skriptů, nechte mě ho nainstalovat!)

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.

(Už mám manažer uživatelských stylů, nechte mě ho nainstalovat!)

// ==UserScript==
// @name         CafeCoderStandingsColorizer
// @namespace    https://makutamoto.com/
// @version      0.3
// @description  Colorize the CafeCoder standings page.
// @author       Makutamoto
// @match        https://cafecoder.top/*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';
    const colors = ['gray', 'brown', 'green', 'cyan', 'blue', 'yellow', 'orange', 'red'];
    const root = document.body;
    const options = {
        subtree: true,
        childList: true,
    };
    const observer = new MutationObserver((records) => {
        for(const record of records) {
            for(const node of record.addedNodes) {
                if(node.tagName === 'DIV') {
                    const users = node.querySelectorAll("table.standings__table tbody tr th");
                    if(users.length > 0) {
                        for(let user of users) {
                            fetch(`https://atcoder-badges.now.sh/api/rating/${user.innerText}`).then((data) => {
                                data.json().then((data) => {
                                    const rating = data.rating === null ? null : (data.rating.atcoder === null ? null : data.rating.atcoder);
                                    if(rating) user.style.color = colors[Math.min(7, Math.floor(rating / 400))];
                                })
                            });
                        }
                    }
                }
            }
        }
    });
    observer.observe(root, options);
})();