// ==UserScript==
// @name         Suno Tab Timer
// @namespace    http://tampermonkey.net/
// @version      1.2
// @description  Show only the current song time in tab title, stop others when switching tracks on Suno.com
// @author       You
// @match        https://suno.com/*
// @grant        none
// ==/UserScript==

(function () {
    'use strict';

    let originalTitle = document.title;
    let currentAudio = null;
    let interval = null;

    function formatTime(seconds) {
        if (!seconds || isNaN(seconds)) return '0:00';
        const m = Math.floor(seconds / 60);
        const s = Math.floor(seconds % 60).toString().padStart(2, '0');
        return `${m}:${s}`;
    }

    function updateTitle(audio) {
        if (audio && !audio.paused && audio.duration > 0) {
            document.title = `${formatTime(audio.currentTime)} / ${formatTime(audio.duration)} ⏵ ${originalTitle}`;
        } else {
            document.title = originalTitle;
        }
    }

    function stopCurrent() {
        clearInterval(interval);
        interval = null;
        if (currentAudio) {
            currentAudio.removeEventListener('pause', resetTitle);
            currentAudio.removeEventListener('ended', resetTitle);
            currentAudio = null;
        }
        document.title = originalTitle;
    }

    function resetTitle() {
        stopCurrent();
        document.title = originalTitle;
    }

    function startTracking(audio) {
        stopCurrent();
        currentAudio = audio;
        originalTitle = document.title;
        interval = setInterval(() => updateTitle(audio), 1000);
        audio.addEventListener('pause', resetTitle);
        audio.addEventListener('ended', resetTitle);
    }

    function setupWatcher() {
        document.body.addEventListener('play', (e) => {
            const audio = e.target;
            if (audio.tagName.toLowerCase() === 'audio') {
                startTracking(audio);
            }
        }, true);
    }

    setupWatcher();
})();