/**
 * KeepItGoing - Main JavaScript
 */

document.addEventListener('DOMContentLoaded', function() {
    // Initialize components
    initTimerDisplay();
    initTaskToggle();
    initConfirmDialogs();
});

/**
 * Update timer display
 */
function initTimerDisplay() {
    const timerDisplay = document.querySelector('.timer-display');
    if (!timerDisplay) return;

    const startedAt = new Date(timerDisplay.dataset.started);

    function updateTimer() {
        const now = new Date();
        const diff = Math.floor((now - startedAt) / 1000);
        const hours = Math.floor(diff / 3600).toString().padStart(2, '0');
        const minutes = Math.floor((diff % 3600) / 60).toString().padStart(2, '0');
        const seconds = (diff % 60).toString().padStart(2, '0');
        timerDisplay.textContent = `${hours}:${minutes}:${seconds}`;
    }

    updateTimer();
    setInterval(updateTimer, 1000);
}

/**
 * Handle task toggle without page reload (optional enhancement)
 */
function initTaskToggle() {
    // For now, we let the form submit normally
    // This could be enhanced with AJAX in the future
}

/**
 * Initialize confirmation dialogs
 */
function initConfirmDialogs() {
    const deleteButtons = document.querySelectorAll('[data-confirm]');
    deleteButtons.forEach(button => {
        button.addEventListener('click', function(e) {
            const message = this.dataset.confirm || 'Are you sure?';
            if (!confirm(message)) {
                e.preventDefault();
            }
        });
    });
}

/**
 * Format duration in seconds to human-readable string
 */
function formatDuration(seconds) {
    if (seconds < 60) {
        return `${seconds}s`;
    } else if (seconds < 3600) {
        const mins = Math.floor(seconds / 60);
        return `${mins}m`;
    } else {
        const hours = Math.floor(seconds / 3600);
        const mins = Math.floor((seconds % 3600) / 60);
        return `${hours}h ${mins}m`;
    }
}

/**
 * Format date to relative string (today, tomorrow, etc.)
 */
function formatRelativeDate(dateString) {
    const date = new Date(dateString);
    const today = new Date();
    today.setHours(0, 0, 0, 0);

    const tomorrow = new Date(today);
    tomorrow.setDate(tomorrow.getDate() + 1);

    const yesterday = new Date(today);
    yesterday.setDate(yesterday.getDate() - 1);

    const dateOnly = new Date(date);
    dateOnly.setHours(0, 0, 0, 0);

    if (dateOnly.getTime() === today.getTime()) {
        return 'Today';
    } else if (dateOnly.getTime() === tomorrow.getTime()) {
        return 'Tomorrow';
    } else if (dateOnly.getTime() === yesterday.getTime()) {
        return 'Yesterday';
    } else {
        return date.toLocaleDateString();
    }
}