document.addEventListener("DOMContentLoaded", function () {
    const newsletterButton = document.getElementById("newsletter-button");

    newsletterButton.addEventListener("click", function (event) {
        event.preventDefault();

        const emailInput = document.querySelector('.newsletter input[type="email"]');
        const email = emailInput.value;

        const emailPattern = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;

        if (email && emailPattern.test(email)) {
            alert(beanheavenStrings.newsletterSuccess);
            emailInput.value = "";
        } else if (!email) {
            alert(beanheavenStrings.newsletterEmpty);
        } else {
            alert(beanheavenStrings.newsletterInvalid);
        }
    });

    let slides = document.querySelectorAll(".slide");
    let currentIndex = 0;
    function changeSlide() {
        slides[currentIndex].classList.remove("active");
        currentIndex = (currentIndex + 1) % slides.length;
        slides[currentIndex].classList.add("active");
    }

    setInterval(changeSlide, 5000);
});