/**
 * 工具函数
 */

/**
 * 格式化时间为 MM:SS 格式
 * @param {number} seconds - 秒数
 * @returns {string} 格式化后的时间字符串
 */
export function formatTime(seconds) {
    const mins = Math.floor(seconds / 60);
    const secs = seconds % 60;
    return `${mins.toString().padStart(2, '0')}:${secs.toString().padStart(2, '0')}`;
}

/**
 * 格式化时间戳为 HH:MM 格式
 * @param {string} timestamp - ISO 8601 时间戳
 * @returns {string} 格式化后的时间字符串
 */
export function formatTimestamp(timestamp) {
    const date = new Date(timestamp);
    const hours = date.getHours().toString().padStart(2, '0');
    const minutes = date.getMinutes().toString().padStart(2, '0');
    return `${hours}:${minutes}`;
}

/**
 * 生成唯一ID
 * @returns {string} 唯一ID
 */
export function generateId() {
    return 'id-' + Math.random().toString(36).substr(2, 9);
}

/**
 * 显示通知
 * @param {string} message - 通知内容
 * @param {number} duration - 显示时长（毫秒）
 */
export function showNotification(message, duration = 3000) {
    const notification = document.getElementById('notification');
    const notificationText = document.getElementById('notificationText');

    if (notification && notificationText) {
        notificationText.textContent = message;
        notification.classList.remove('opacity-0', 'translate-y-[-20px]');
        notification.classList.add('opacity-100', 'translate-y-0');

        setTimeout(() => {
            notification.classList.remove('opacity-100', 'translate-y-0');
            notification.classList.add('opacity-0', 'translate-y-[-20px]');
        }, duration);
    }
}

/**
 * 切换元素的显示/隐藏
 * @param {HTMLElement} element - DOM元素
 * @param {boolean} show - 是否显示
 */
export function toggleElement(element, show) {
    if (element) {
        if (show) {
            element.classList.remove('hidden');
        } else {
            element.classList.add('hidden');
        }
    }
}

/**
 * 切换按钮状态
 * @param {HTMLElement} button - 按钮元素
 * @param {boolean} active - 是否激活
 */
export function toggleButtonState(button, active) {
    if (button) {
        button.dataset.active = active;

        const defaultIcon = button.querySelector('[data-icon="default"]');
        const activeIcon = button.querySelector('[data-icon="active"]');

        if (defaultIcon && activeIcon) {
            if (active) {
                defaultIcon.classList.add('hidden');
                activeIcon.classList.remove('hidden');
            } else {
                defaultIcon.classList.remove('hidden');
                activeIcon.classList.add('hidden');
            }
        }
    }
}