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Parimango Task Timer (Blink Background Negative)

20s countdown with styled preview, resets on task change, background blinks when negative. Developed by Mostofa Tanim Anik

As of 04. 10. 2025. See the latest version.

// ==UserScript==
// @name         Parimango Task Timer (Blink Background Negative)
// @namespace    http://tampermonkey.net/
// @version      2.0
// @author       Mostofa Tanim Anik
// @description  20s countdown with styled preview, resets on task change, background blinks when negative. Developed by Mostofa Tanim Anik
// @match        https://www.parimango.com/*
// @grant        none
// @run-at       document-idle
// ==/UserScript==

(function () {
    'use strict';

    let countdown = 20;
    let intervalId = null;
    let lastTaskNumber = null;
    let debounceTimeout = null;
    const POLL_MS = 1000;
    const OBS_DEBOUNCE_MS = 200;

    function createTimerElement() {
        let el = document.getElementById('tm-task-timer');
        if (el) return el;

        el = document.createElement('div');
        el.id = 'tm-task-timer';
        Object.assign(el.style, {
            position: 'fixed',
            top: '10px',
            right: '10px',
            background: '#111',
            color: '#fff',
            fontSize: '18px',
            fontWeight: '600',
            padding: '6px 10px',
            borderRadius: '2px',
            zIndex: '2147483647',
         //   boxShadow: '0 3px 10px rgba(0,0,0,.5)',
            fontFamily: 'monospace',
            textAlign: 'center',
            minWidth: '120px',
            transition: 'background 0.3s ease'
        });
        document.body.appendChild(el);
        return el;
    }

    function updateTimerUI() {
        const el = createTimerElement();
        el.textContent = `⏱ ${countdown}s`;

        if (countdown >= 8) {
            el.style.background = '#111';
            el.style.color = 'lime';
            el.style.animation = '';
        } else if (countdown >= 0 && countdown < 8) {
            el.style.background = '#222';
            el.style.color = 'orange';
            el.style.animation = '';
        } else {
            el.style.color = '#fff';
            el.style.animation = 'tmBlinkBg 1s infinite';
        }
    }

    // background blinking animation
    const style = document.createElement('style');
    style.textContent = `
        @keyframes tmBlinkBg {
            0% { background: #800; }
            50% { background: #f00; }
            100% { background: #800; }
        }
    `;
    document.head.appendChild(style);

    function startTimerOnce() {
        if (intervalId) return;
        updateTimerUI();
        intervalId = setInterval(() => {
            countdown--;
            updateTimerUI();
        }, 1000);
    }

    function resetTimerToDefault() {
        countdown = 20;
        updateTimerUI();
        if (!intervalId) startTimerOnce();
    }

    function findTasksBadgeNode() {
        const xpath = "//*[contains(normalize-space(.), 'Tasks Completed:')]";
        const res = document.evaluate(xpath, document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null);
        return res.singleNodeValue || null;
    }

    function readTasksCompletedNumber() {
        const node = findTasksBadgeNode();
        if (!node) return null;
        const txt = node.textContent || '';
        const m = txt.match(/Tasks\s*Completed\s*:\s*(\d+)/i);
        return m ? parseInt(m[1], 10) : null;
    }

    function checkBadgeAndResetIfNeeded() {
        createTimerElement();
        const num = readTasksCompletedNumber();
        if (num === null) return;
        if (lastTaskNumber === null) {
            lastTaskNumber = num;
            return;
        }
        if (num !== lastTaskNumber) {
            lastTaskNumber = num;
            resetTimerToDefault();
        }
    }

    function setupObservers() {
        setInterval(checkBadgeAndResetIfNeeded, POLL_MS);
        const observer = new MutationObserver(() => {
            clearTimeout(debounceTimeout);
            debounceTimeout = setTimeout(checkBadgeAndResetIfNeeded, OBS_DEBOUNCE_MS);
        });
        observer.observe(document.body, {
            childList: true,
            subtree: true,
            characterData: true
        });
    }

    function init() {
        createTimerElement();
        lastTaskNumber = readTasksCompletedNumber();
        startTimerOnce();
        setupObservers();
        setInterval(() => {
            if (!document.getElementById('tm-task-timer')) createTimerElement();
        }, 3000);
    }

    if (document.readyState === 'complete' || document.readyState === 'interactive') {
        init();
    } else {
        window.addEventListener('DOMContentLoaded', init);
        setTimeout(() => { if (!intervalId) init(); }, 3000);
    }
})();