Login Ajax Auth

/* Login Ajax */
$(document).on('click', '#Tombol', function(e){
    e.preventDefault();

    $.ajax({
        url         : site + "login/check_auth/",
        type        : "POST",
        data        : $('#form-login').serialize(),
        dataType    : "JSON",
        success     : function(data){
            $('.form-control').removeClass('form-control-danger')
                                .removeClass('form-control-success');
            $('.help-block').remove();

            if (data.success == true) {
                notify('success', '<b>Successfully!</b> ', 'Successfully!', '<i class="ti-check"></i>');

                $('.form-control').removeClass('form-control-danger')
                                    .removeClass('form-control-success');
                $('.help-block').remove();

                if (count > 0) {
                    count--;
                    var waktu = count + 1;
                    setTimeout("countDown()", 1000);
                }else {
                    window.location.href = site + "login";
                }
            }else{
                notify('danger', '<b>Error! </b> ', 'Gagal Login!', '<i class="ti-check"></i>');

                $.each(data.messages, function(key, value){
                    var element = $('#'+key);

                    element.closest('input.form-control')
                        .removeClass('form-control-success')
                        .removeClass('form-control-danger')
                        .addClass(value.length > 0 ? 'form-control-danger' : 'form-control-success')
                        .find('.help-block').remove();

                    element.after(value);
                });
            }
        },
        error       : function (jqXHR, textStatus, errorThrown){
            console.log(errorThrown);
            notify('danger', '<b>Error! </b> ', 'Gagal Login!', '<i class="ti-check"></i>');
        }
    });
});

/* Form Login (view) */
<form class="md-float-material" method="POST" charset="utf-8" id="form-login">
                                <div class="text-center">
                                    <img src="<?php echo base_url();?>assets/images/auth/logo-dark.png" alt="logo.png">
                                </div>
                                <div class="auth-box">
                                    <div class="row m-b-20">
                                        <div class="col-md-12">
                                            <h3 class="text-left txt-primary">Sign In</h3>
                                        </div>
                                    </div>
                                    <hr/>
                                    <div class="form-group">
                                        <?php echo form_input('Txt_LoginEmail', '', ['id' => 'Txt_LoginEmail', 'class' => 'form-control', 'placeholder' => 'Masukan Email']);?>
                                    </div>
                                    <div class="form-group">
                                        <?php echo form_password('Txt_LoginPassword', '', ['id' => 'Txt_LoginPassword', 'class' => 'form-control', 'placeholder' => 'Masukan Password']);?>
                                    </div>
                                    <div class="row m-t-25 text-left">
                                        <div class="col-sm-7 col-xs-12">
                                            <div class="checkbox-fade fade-in-primary">
                                                <label>
                                                    <input type="checkbox" id="show-password">
                                                    <span class="cr"><i class="cr-icon icofont icofont-ui-check txt-primary"></i></span>
                                                    <span class="text-inverse">Show Password</span>
                                                </label>
                                            </div>
                                        </div>
                                    </div>

                                    <div class="row m-t-30">
                                        <div class="col-md-12">
                                            <?php echo form_button(['type' => 'submit', 'class' => 'btn btn-primary btn-md btn-block text-center m-b-20', 'id' => 'Tombol', 'content' => '<i class="icofont icofont-lock"></i> Login']);?>
                                        </div>
                                    </div>
                                    <hr/>
                                    <div class="row">
                                        <div class="col-md-10">
                                            <p class="text-inverse text-left m-b-0">Thank you and enjoy our website.</p>
                                            <p class="text-inverse text-left"><b>Your Authentication Team</b></p>
                                        </div>
                                        <div class="col-md-2">
                                            <img src="assets/images/auth/Logo-small-bottom.png" alt="small-logo.png">
                                        </div>
                                    </div>
                                </div>
                            </form>

/* Controller Login */
public function check_auth(){
        $data = array('success' => false, 'messages' => array(), 'result' => []);

        $validate = $this->login->validate();

        if ($validate) {
            foreach ($_POST as $key => $value) {
                $data['result'] = (object) $this->input->post(null, true);
            }

            $hasil = $this->login->login($data['result']);

            $data['success'] = $hasil;

            echo json_encode($hasil);

        } else {
            foreach ($_POST as $key => $value) {
                $data['messages'][$key] = form_error($key);
            }
        }

        echo json_encode($data);
    }