// ==UserScript==
// @name         NBA.com Time Zone Converter (ET to CET)
// @namespace    http://tampermonkey.net/
// @version      1.0.1
// @description  Automatically converts time from Eastern Time (ET) to Central European Time (CET) within the header.
// @author       Beurreboule
// @match        https://www.nba.com/*
// @grant        none
// @license      MIT
// @downloadURL none
// ==/UserScript==

(function() {
    'use strict';

    function convertETtoUTCPlus1(timeString) {
        const isDaylightSaving = () => {
            const today = new Date();
            const jan = new Date(today.getFullYear(), 0, 1).getTimezoneOffset();
            const jul = new Date(today.getFullYear(), 6, 1).getTimezoneOffset();
            return Math.max(jan, jul) != today.getTimezoneOffset();
        };

        const offset = isDaylightSaving() ? 5 : 6;
        const match = timeString.match(/(\d{1,2}):(\d{2})\s*([AP]M)\s*ET/i);
        if (!match) return timeString;

        let [_, hours, minutes, meridiem] = match;
        hours = parseInt(hours);
        minutes = parseInt(minutes);

        if (meridiem.toLowerCase() === "pm" && hours < 12) hours += 12;
        if (meridiem.toLowerCase() === "am" && hours === 12) hours = 0;

        hours += offset;
        if (hours >= 24) hours -= 24;

        return `${hours.toString().padStart(2, '0')}:${minutes.toString().padStart(2, '0')} (CET)`;
    }

    function getTimeElements() {
        return document.querySelectorAll(".ScoreStripGame_gameInfoText__tlx_V, .ScheduleStatusText_base__Jgvjb, .GameCardMatchupStatusText_gcsText__PcQUX");
    }

    function getBroadcasterElements() {
        return document.querySelectorAll(".ScoreStripGame_broadcasters__NU0f2");
    }

    function applyNewInfo() {
        let elementsTime = getTimeElements();
        elementsTime.forEach(element => {
            const originalTime = element.textContent;
            const newTime = convertETtoUTCPlus1(originalTime);
            element.textContent = newTime;
        });

        let elementsBroadcaster = getBroadcasterElements();
        elementsBroadcaster.forEach(element => {
            element.style.display = 'none';
        });
    }

    window.addEventListener("load", applyNewInfo);
})();