const validateEmail = (email) => {
    return String(email)
        .toLowerCase()
        .match(
            /^(([^<>()[\]\\.,;:\s@"]+(\.[^<>()[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/
        );
};

const validatePhone = (phone) => {
    return String(phone)
        .match(
            /^(?:\(?\?)?(?:[-\.\(\)\s]*(\d)){9}\)?$/
        );
}

$(document).ready(function() {

    $('#button_send').on('click', function(e) {

        e.preventDefault();
        e.stopPropagation();

        let f_pass = true;

        let name = $('#name').val();
        let email = $('#email').val();
        let phone = $('#phone').val();
        let message = $('#message').val();
        let recaptcha = $('#g-token').val();

        if (name == '') {
            $('#e_name').html('Proszę podać imię i nazwisko.');
            f_pass = false;
        }

        if (!validateEmail(email)) {
            $('#e_email').html('Proszę podać poprawny adres e-mail.');
            f_pass = false;
        }

        if (!validatePhone(phone)) {
            phone = '';
        }

        if (message == '') {
            $('#e_message').val('Proszę wpisać wiadomość.');
            f_pass = false;
        }

        if (f_pass) {
            $.ajax({
                url: "php/mailing/mail_sending.engine.php",
                data: { "name": name, "email": email, "message": message, "phone": phone, "recaptcha": recaptcha },
                method: "post",

                success: function(result) {
                    console.log(result);
                }
            });
        }

    });

});