function checkLogin() {
    $.ajax({
        type: "POST",
        url: "php/check_login.php",
        data: { },
        success: function (res) {
            if(res == "unlogged") {
                openLoginSection();
                auth_user = 0;
            } else {
                auth_user = 1;
            }
        }
    });
}
function openLoginSection() {
    document.getElementById("login_page").style.display = 'block';
    document.getElementById("open_login_page").click();
}

function loginRequest() {
    $.post("php/auth.php",
        {
            accessoUtente: true,
            //prendo i dati inseriti e li invio a php
            email: $('input[name="email"]').val(),
            password: $('input[name="password"]').val()
        }, function (response) {
        //risposta da php
        console.log(response);
        //dati corretti
        if (response === "2") {
            //dati errati
            Swal.fire({
                type: 'error',
                text: 'Email o password errati!'
            });
        } else if (response === "3") {
            //dati errati
            Swal.fire({
                type: 'error',
                text: 'Email o password errati!'
            });
        } else {
            Swal.fire({
                type: 'success',
                title: 'Login riuscito!',
                showConfirmButton: false,
                timer: 2000
            });
            document.getElementById("close-modal").click();
            auth_user = 1;
            document.querySelector("#menu_main_username").innerHTML = response;
            location.reload();
        }
    });
}
function logoutRequest() {
    $.post("php/logout.php",
        {}, function () {
        auth_user = 0;
        location.reload();
    });
}
function openForgotSection() {
    document.getElementById("forgot_page").style.display = 'block';
    document.getElementById("open_forgot_page").click();
    /* var xmlhttp = new XMLHttpRequest();
    xmlhttp.onreadystatechange = function () {
        if (this.readyState == 4 && this.status == 200) {
            document.querySelector("#forgot-content").style.display="block";
            document.querySelector("#forgot-content").innerHTML = this.responseText;
        }
    };
    xmlhttp.open("GET", "public/forgot.php");
    xmlhttp.send(); */
}
function sendForgotVerificationCode() {
    var email = document.querySelector('#forgot_email').value;
    $.ajax({
        type: "POST",
        url: "php/forgot/check_email.php",
        data: { email : email },
        success: function (res) {
            if (res == "ok") {
                $.ajax({
                    type: "POST",
                    url: "php/forgot/send_forgot_verification_code.php",
                    data: { email : email },
                    success: function (res) {
                        if (res == "ok") {
                            document.querySelector('#forgot_password_content').style.display="none";
                            document.querySelector('#otp_verification_content').style.display="block";
                        } else {
                            Swal.fire(
                                'Errore!',
                                'Codice non inviato',
                                'error'
                            );
                        }
                    }
                });
            } else {
                Swal.fire(
                    'Errore!',
                    'Email non trovata',
                    'error'
                );
            }
        }
    });
}
function checkForgotVerificationCode() {
    var email = document.querySelector('#forgot_email').value;
    var otp_num_1 = document.querySelector('#otp_num_1').value;
    var otp_num_2 = document.querySelector('#otp_num_2').value;
    var otp_num_3 = document.querySelector('#otp_num_3').value;
    var otp_num_4 = document.querySelector('#otp_num_4').value;
    $.ajax({
        type: "POST",
        url: "php/forgot/check_forgot_verification_code.php",
        data: { otp_num_1 : otp_num_1, otp_num_2 : otp_num_2, otp_num_3 : otp_num_3, otp_num_4 : otp_num_4, email : email},
        success: function (res) {
            if (res == "ok") {
                document.querySelector('#otp_verification_content').style.display="none";
                openForgotPasswordReset();
            } else {
                Swal.fire(
                    'Errore!',
                    'Codice non valido',
                    'error'
                );
            }
        }
    });
}
function openForgotPasswordReset() {
    var xmlhttp = new XMLHttpRequest();
    xmlhttp.onreadystatechange = function () {
        if (this.readyState == 4 && this.status == 200) {
            document.querySelector("#password_reset_content").innerHTML = this.responseText;
            document.querySelector("#password_reset_content").style.display="block";
        }
    };
    xmlhttp.open("GET", "php/forgot/password_reset_forgot_content.php");
    xmlhttp.send();
}
function changeForgotPassword() {
    var email = document.querySelector('#forgot_email').value;
    var new_password = document.querySelector("#new_pass").value;
    var repeat_new_password = document.querySelector("#repeat_new_pass").value;
    if(new_password == repeat_new_password) {
        if(new_password.length < 8) {
            Swal.fire(
                'Errore!',
                'La password deve essere di almeno 8 caratteri',
                'error'
            );
        } else {
            if(/\d/.test(new_password) == false) {
                Swal.fire(
                    'Errore!',
                    'La password deve contenere almeno un numero',
                    'error'
                );
            } else {
                var special_char = /[ `!@#$%^&*()_+\-=\[\]{};':"\\|,.<>\/?~]/;
                if(special_char.test(new_password) == false) {
                    Swal.fire(
                        'Errore!',
                        'La password deve contenere almeno un carattere speciale',
                        'error'
                    );
                } else {
                    $.ajax({
                        type: "POST",
                        url: "php/forgot/change_forgot_password.php",
                        data: { new_password : new_password, email : email},
                        success: function (res) {
                            if (res == "ok") {
                                Swal.fire(
                                    'Password modificata!',
                                    'La password è stata modificata con successo',
                                    'success'
                                );
                                location.reload();
                            } else {
                                Swal.fire(
                                    'Errore!',
                                    'Password non cambiata',
                                    'error'
                                );
                            }
                        }
                    });
                }
            }
        }
    } else {
        Swal.fire(
            'Errore!',
            'Le password non sono uguali',
            'error'
        );
    }
}
//Chiudere i messaggi d'errore
function closeError(element_id) {
    document.querySelector('#' + element_id).style.display = 'none';
}