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<?php

if (!defined('ABSPATH')) {
    exit;
}
if (!class_exists('ACF_Form_User')) {
    class ACF_Form_User
    {
        var $view = '';
        function __construct()
        {
            add_action('admin_enqueue_scripts', array($this, 'admin_enqueue_scripts'));
            add_action('login_form_register', array($this, 'login_form_register'));
            add_action('show_user_profile', array($this, 'render_edit'));
            add_action('edit_user_profile', array($this, 'render_edit'));
            add_action('user_new_form', array($this, 'render_new'));
            add_action('register_form', array($this, 'render_register'));
            add_action('user_register', array($this, 'save_user'));
            add_action('profile_update', array($this, 'save_user'));
            add_filter('registration_errors', array($this, 'filter_registration_errors'), 10, 3);
        }
        function admin_enqueue_scripts()
        {
            if (!acf_is_screen(array('profile', 'user', 'user-edit'))) {
                return;
            }
            acf_enqueue_scripts();
        }
        function login_form_register()
        {
            acf_enqueue_scripts(array('context' => 'login'));
        }
        function render_register()
        {
            $this->render(array('user_id' => 0, 'view' => 'register', 'el' => 'div'));
        }
        function render_edit($user)
        {
            if (!is_admin()) {
                acf_enqueue_scripts();
            }
            $this->render(array('user_id' => $user->ID, 'view' => 'edit', 'el' => 'tr'));
        }
        function render_new()
        {
            if (is_multisite()) {
                return;
            }
            $this->render(array('user_id' => 0, 'view' => 'add', 'el' => 'tr'));
        }
        function render($args = array())
        {
            if (isset($_POST['acf'])) {
                add_filter('acf/pre_load_value', array($this, 'filter_pre_load_value'), 10, 3);
            }
            $args = wp_parse_args($args, array('user_id' => 0, 'view' => 'edit', 'el' => 'tr'));
            $post_id = 'user_' . $args['user_id'];
            $field_groups = acf_get_field_groups(array('user_id' => $args['user_id'] ? $args['user_id'] : 'new', 'user_form' => $args['view']));
            if (empty($field_groups)) {
                return;
            }
            acf_form_data(array('screen' => 'user', 'post_id' => $post_id, 'validation' => $args['view'] == 'register' ? 0 : 1));
            $before = '<table class="form-table"><tbody>';
            $after = '</tbody></table>';
            if ($args['el'] == 'div') {
                $before = '<div class="acf-user-' . $args['view'] . '-fields acf-fields -clear">';
                $after = '</div>';
            }
            foreach ($field_groups as $field_group) {
                $fields = acf_get_fields($field_group);
                if ($field_group['style'] === 'default') {
                    echo '<h2>' . $field_group['title'] . '</h2>';
                }
                echo $before;
                acf_render_fields($fields, $post_id, $args['el'], $field_group['instruction_placement']);
                echo $after;
            }
            add_action('acf/input/admin_footer', array($this, 'admin_footer'), 10, 1);
        }
        function admin_footer()
        {
            ?>
<script type="text/javascript">
(function($) {
	
	// vars
	var view = '<?php 
            echo $this->view;
            ?>';
	
	// add missing spinners
	var $submit = $('input.button-primary');
	if( !$submit.next('.spinner').length ) {
		$submit.after('<span class="spinner"></span>');
	}
	
})(jQuery);	
</script>
			<?php 
        }
        function save_user($user_id)
        {
            if (!acf_verify_nonce('user')) {
                return $user_id;
            }
            if (acf_validate_save_post(true)) {
                acf_save_post("user_{$user_id}");
            }
        }
        function filter_registration_errors($errors, $sanitized_user_login, $user_email)
        {
            if (!acf_validate_save_post()) {
                $acf_errors = acf_get_validation_errors();
                foreach ($acf_errors as $acf_error) {
                    $errors->add(acf_idify($acf_error['input']), acf_esc_html(acf_punctify(sprintf(__('<strong>Error</strong>: %s', 'acf'), $acf_error['message']))));
                }
            }
            return $errors;
        }
        function filter_pre_load_value($null, $post_id, $field)
        {
            $field_key = $field['key'];
            if (isset($_POST['acf'][$field_key])) {
                return $_POST['acf'][$field_key];
            }
            return $null;
        }
    }
    acf_new_instance('ACF_Form_User');
}