timer/index.html at main · drjohnsonjr/timer · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Meditation Timer</title>
    <style>
        body {
            background-color: black;
            color: white;
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            font-family: 'Courier New', monospace;
            position: relative;
        }
        #timer {
            font-size: 5rem;
            cursor: pointer;
        }
        #controls {
            position: absolute;
            top: 10px;
            right: 10px;
            font-size: 2rem;
        }
        .control-button {
            cursor: pointer;
            margin-left: 10px;
        }
    </style>
</head>
<body>
<div id="controls">
    <span id="play-pause" class="control-button">🟢</span>
    <span id="ring-bell" class="control-button">🔔</span>
    <span id="set-timer" class="control-button">⏲️</span>
</div>
<div id="timer"></div>

<audio id="bell-sound" src="bell.mp3"></audio>

<script>
    let countdownMinutes = 25;  // Set timer duration here
    let countdownSeconds = 0;
    let isRunning = false;
    let countdownInterval;
    let targetEndTime;
    const timerElement = document.getElementById("timer");
    const bellSound = document.getElementById("bell-sound");
    const playPauseButton = document.getElementById("play-pause");
    const ringBellButton = document.getElementById("ring-bell");
    const setTimerButton = document.getElementById("set-timer");

    function playBell(times, partialDuration = 1500) {
        let count = 0;
        function play() {
            if (count < times) {
                bellSound.currentTime = 0.888;
                bellSound.play().catch(handleAudioError);
                count++;
                if (count < times) {
                    setTimeout(() => {
                        if (count < times - 1) {
                            bellSound.pause();
                        }
                        play();
                    }, partialDuration);
                }
            }
        }
        play();
    }

    function handleAudioError(error) {
        console.error("Audio playback was prevented by the browser:", error);
    }

    function updateTimerDisplay() {
        if (targetEndTime) {
            const now = new Date().getTime();
            const timeRemaining = Math.max(targetEndTime - now, 0);
            countdownMinutes = Math.floor(timeRemaining / (1000 * 60));
            countdownSeconds = Math.floor((timeRemaining % (1000 * 60)) / 1000);
        }
        const minutes = countdownMinutes.toString().padStart(2, '0');
        const seconds = countdownSeconds.toString().padStart(2, '0');
        timerElement.textContent = `${minutes}:${seconds}`;
    }

    function startCountdown() {
        targetEndTime = new Date().getTime() + countdownMinutes * 60000 + countdownSeconds * 1000;
        countdownInterval = setInterval(() => {
            updateTimerDisplay();
            if (countdownMinutes === 0 && countdownSeconds === 0) {
                clearInterval(countdownInterval);
                playPauseButton.textContent = '🟢';  // Change to play icon when timer ends
                bellSound.currentTime = 0.888;
                bellSound.play().catch(handleAudioError);
            }
        }, 250);
    }

    function toggleTimer() {
        if (isRunning) {
            clearInterval(countdownInterval);
            isRunning = false;
            playPauseButton.textContent = '🟢';  // Change to play icon
        } else {
            if (!targetEndTime) {  // Only play the bell if it's the initial start
                playBell(3);
            }
            startCountdown();
            isRunning = true;
            playPauseButton.textContent = '⏸️';  // Change to pause icon
        }
    }

    function ringBellNow() {
        playBell(1);
    }

    function setNewTimer() {
        const newTime = prompt("Enter new time in MM:SS format:", "25:00");
        if (newTime) {
            const [newMinutes, newSeconds] = newTime.split(":").map(Number);
            if (!isNaN(newMinutes) && !isNaN(newSeconds)) {
                countdownMinutes = newMinutes;
                countdownSeconds = newSeconds;
                targetEndTime = null;  // Reset target end time
                updateTimerDisplay();
            } else {
                alert("Invalid time format. Please use MM:SS.");
            }
        }
    }

    playPauseButton.addEventListener("click", toggleTimer);
    ringBellButton.addEventListener("click", ringBellNow);
    setTimerButton.addEventListener("click", setNewTimer);
    updateTimerDisplay();
</script>
</body>
</html>