// Homework Manager JavaScript

document.addEventListener('DOMContentLoaded', function() {
    // Auto-dismiss alerts after 5 seconds
    const alerts = document.querySelectorAll('.alert:not(.alert-danger)');
    alerts.forEach(function(alert) {
        setTimeout(function() {
            alert.classList.add('fade');
            setTimeout(function() {
                alert.remove();
            }, 150);
        }, 5000);
    });

    // Confirm dialogs for dangerous actions
    const confirmForms = document.querySelectorAll('form[data-confirm]');
    confirmForms.forEach(function(form) {
        form.addEventListener('submit', function(e) {
            if (!confirm(form.dataset.confirm)) {
                e.preventDefault();
            }
        });
    });

    // Set default datetime to now + 1 day for new assignments
    const dueDateInput = document.getElementById('due_date');
    if (dueDateInput && !dueDateInput.value) {
        const tomorrow = new Date();
        tomorrow.setDate(tomorrow.getDate() + 1);
        tomorrow.setHours(23, 59, 0, 0);
        dueDateInput.value = tomorrow.toISOString().slice(0, 16);
    }
});