// 工具函数

// 格式化日期时间
function formatDateTime(date) {
    const year = date.getFullYear();
    const month = String(date.getMonth() + 1).padStart(2, '0');
    const day = String(date.getDate()).padStart(2, '0');
    const hours = String(date.getHours()).padStart(2, '0');
    const minutes = String(date.getMinutes()).padStart(2, '0');
    return `${year}-${month}-${day} ${hours}:${minutes}`;
}

// 防抖函数
function debounce(fn, delay) {
    let timer;
    return function(...args) {
        clearTimeout(timer);
        timer = setTimeout(() => fn.apply(this, args), delay);
    };
}

// 生成默认图片
function getDefaultImage() {
    return 'data:image/svg+xml,<svg xmlns=%22http://www.w3.org/2000/svg%22 width=%2248%22 height=%2248%22><rect fill=%22%23fed7aa%22 width=%2248%22 height=%2248%22/><text x=%2250%25%22 y=%2250%25%22 text-anchor=%22middle%22 dy=%22.3em%22 fill=%22%23c2410c%22>🍳</text></svg>';
}

// 确认对话框
function confirmAction(message) {
    return confirm(message);
}

// 显示提示
function showToast(message, type = 'info') {
    // 简单实现，实际可以使用更优雅的toast库
    alert(message);
}