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<?php

if (!defined('ABSPATH')) {
    exit;
}
if (!class_exists('ACF_Admin_Field_Groups')) {
    class ACF_Admin_Field_Groups
    {
        public $sync = array();
        public $view = '';
        public function __construct()
        {
            add_action('load-edit.php', array($this, 'handle_redirection'));
            add_action('current_screen', array($this, 'current_screen'));
            add_action('trashed_post', array($this, 'trashed_post'));
            add_action('untrashed_post', array($this, 'untrashed_post'));
            add_action('deleted_post', array($this, 'deleted_post'));
        }
        public function get_admin_url($params = '')
        {
            return admin_url("edit.php?post_type=acf-field-group{$params}");
        }
        public function get_current_admin_url($params = '')
        {
            return $this->get_admin_url(($this->view ? '&post_status=' . $this->view : '') . $params);
        }
        public function handle_redirection()
        {
            if (isset($_GET['post_type']) && $_GET['post_type'] === 'acf') {
                wp_redirect($this->get_admin_url());
                exit;
            }
        }
        public function current_screen()
        {
            if (!acf_is_screen('edit-acf-field-group')) {
                return;
            }
            $this->view = isset($_GET['post_status']) ? sanitize_text_field($_GET['post_status']) : '';
            $this->setup_sync();
            $this->check_sync();
            $this->check_duplicate();
            global $wp_post_statuses;
            $wp_post_statuses['publish']->label_count = _n_noop('Active <span class="count">(%s)</span>', 'Active <span class="count">(%s)</span>', 'acf');
            $wp_post_statuses['trash'] = acf_extract_var($wp_post_statuses, 'trash');
            add_action('admin_enqueue_scripts', array($this, 'admin_enqueue_scripts'));
            add_action('admin_body_class', array($this, 'admin_body_class'));
            add_filter('views_edit-acf-field-group', array($this, 'admin_table_views'), 10, 1);
            add_filter('manage_acf-field-group_posts_columns', array($this, 'admin_table_columns'), 10, 1);
            add_action('manage_acf-field-group_posts_custom_column', array($this, 'admin_table_columns_html'), 10, 2);
            add_filter('display_post_states', array($this, 'display_post_states'), 10, 2);
            add_filter('bulk_actions-edit-acf-field-group', array($this, 'admin_table_bulk_actions'), 10, 1);
            add_action('admin_footer', array($this, 'admin_footer'), 1);
            if ($this->view !== 'trash') {
                add_filter('page_row_actions', array($this, 'page_row_actions'), 10, 2);
            }
            if ($this->view === 'sync') {
                add_action('admin_footer', array($this, 'admin_footer__sync'), 1);
            }
        }
        public function setup_sync()
        {
            if (acf_get_local_json_files()) {
                $all_field_groups = acf_get_field_groups();
                foreach ($all_field_groups as $field_group) {
                    $local = acf_maybe_get($field_group, 'local');
                    $modified = acf_maybe_get($field_group, 'modified');
                    $private = acf_maybe_get($field_group, 'private');
                    if ($private) {
                        continue;
                    } elseif ($local !== 'json') {
                        continue;
                    } elseif (!$field_group['ID']) {
                        $this->sync[$field_group['key']] = $field_group;
                    } elseif ($modified && $modified > get_post_modified_time('U', true, $field_group['ID'])) {
                        $this->sync[$field_group['key']] = $field_group;
                    }
                }
            }
        }
        public function admin_enqueue_scripts()
        {
            acf_enqueue_script('acf');
            acf_localize_text(array('Review local JSON changes' => __('Review local JSON changes', 'acf'), 'Loading diff' => __('Loading diff', 'acf'), 'Sync changes' => __('Sync changes', 'acf')));
        }
        public function admin_body_class($classes)
        {
            $classes .= ' acf-admin-field-groups';
            if ($this->view) {
                $classes .= " view-{$this->view}";
            }
            return $classes;
        }
        public function get_disabled_post_state()
        {
            return '<span class="dashicons dashicons-hidden"></span> ' . _x('Disabled', 'post status', 'acf');
        }
        public function display_post_states($post_states, $post)
        {
            if ($post->post_status === 'acf-disabled') {
                $post_states['acf-disabled'] = $this->get_disabled_post_state();
            }
            return $post_states;
        }
        public function admin_table_columns($_columns)
        {
            $columns = array('cb' => $_columns['cb'], 'title' => $_columns['title'], 'acf-description' => __('Description', 'acf'), 'acf-key' => __('Key', 'acf'), 'acf-location' => __('Location', 'acf'), 'acf-count' => __('Fields', 'acf'));
            if (acf_get_local_json_files()) {
                $columns['acf-json'] = __('Local JSON', 'acf');
            }
            return $columns;
        }
        public function admin_table_columns_html($column_name, $post_id)
        {
            $field_group = acf_get_field_group($post_id);
            if ($field_group) {
                $this->render_admin_table_column($column_name, $field_group);
            }
        }
        public function render_admin_table_column($column_name, $field_group)
        {
            switch ($column_name) {
                case 'acf-key':
                    echo esc_html($field_group['key']);
                    break;
                case 'acf-description':
                    if ($field_group['description']) {
                        echo '<span class="acf-description">' . acf_esc_html($field_group['description']) . '</span>';
                    }
                    break;
                case 'acf-location':
                    $this->render_admin_table_column_locations($field_group);
                    break;
                case 'acf-count':
                    echo esc_html(acf_get_field_count($field_group));
                    break;
                case 'acf-json':
                    $this->render_admin_table_column_local_status($field_group);
                    break;
            }
        }
        public function render_admin_table_column_locations($field_group)
        {
            $objects = array();
            if ($field_group['location']) {
                foreach ($field_group['location'] as $i => $rules) {
                    foreach ($rules as $j => $rule) {
                        $location = acf_get_location_rule($rule['param']);
                        $location_object_type = '';
                        $location_object_subtype = '';
                        if ($location) {
                            $location_object_type = $location->get_object_type($rule);
                            $location_object_subtype = $location->get_object_subtype($rule);
                        }
                        $rules[$j]['object_type'] = $location_object_type;
                        $rules[$j]['object_subtype'] = $location_object_subtype;
                    }
                    $object_types = array_column($rules, 'object_type');
                    $object_types = array_filter($object_types);
                    $object_types = array_values($object_types);
                    if ($object_types) {
                        $object_type = $object_types[0];
                    } else {
                        continue;
                    }
                    $object_subtypes = array_column($rules, 'object_subtype');
                    $object_subtypes = array_filter($object_subtypes);
                    $object_subtypes = array_values($object_subtypes);
                    $object_subtypes = array_map('acf_array', $object_subtypes);
                    if (count($object_subtypes) > 1) {
                        $object_subtypes = call_user_func_array('array_intersect', $object_subtypes);
                        $object_subtypes = array_values($object_subtypes);
                    } elseif ($object_subtypes) {
                        $object_subtypes = $object_subtypes[0];
                    } else {
                        $object_subtypes = array('');
                    }
                    foreach ($object_subtypes as $object_subtype) {
                        $object = acf_get_object_type($object_type, $object_subtype);
                        if ($object) {
                            $objects[$object->name] = $object;
                        }
                    }
                }
            }
            $objects = array_values($objects);
            $html = '';
            if ($objects) {
                $limit = 3;
                $total = count($objects);
                $html .= '<span class="dashicons ' . $objects[0]->icon . ($total > 1 ? ' acf-multi-dashicon' : '') . '"></span> ';
                $labels = array_column($objects, 'label');
                $labels = array_slice($labels, 0, 3);
                $html .= implode(', ', $labels);
                if ($total > $limit) {
                    $html .= ', ...';
                }
            } else {
                $html = '<span class="dashicons dashicons-businesswoman"></span> ' . __('Various', 'acf');
            }
            echo acf_esc_html($html);
        }
        public function get_human_readable_file_location($file)
        {
            $theme_path = get_stylesheet_directory();
            if (strpos($file, $theme_path) !== false) {
                $rel_file = str_replace($theme_path, '', $file);
                $located = sprintf(__('Located in theme: %s', 'acf'), $rel_file);
            } elseif (strpos($file, WP_PLUGIN_DIR) !== false) {
                $rel_file = str_replace(WP_PLUGIN_DIR, '', $file);
                $located = sprintf(__('Located in plugin: %s', 'acf'), $rel_file);
            } else {
                $rel_file = str_replace(ABSPATH, '', $file);
                $located = sprintf(__('Located in: %s', 'acf'), $rel_file);
            }
            return $located;
        }
        public function render_admin_table_column_local_status($field_group)
        {
            $json = acf_get_local_json_files();
            if (isset($json[$field_group['key']])) {
                $file = $json[$field_group['key']];
                if (isset($this->sync[$field_group['key']])) {
                    $url = $this->get_admin_url('&acfsync=' . $field_group['key'] . '&_wpnonce=' . wp_create_nonce('bulk-posts'));
                    echo '<strong>' . __('Sync available', 'acf') . '</strong>';
                    if ($field_group['ID']) {
                        echo '<div class="row-actions">
						<span class="sync"><a href="' . esc_url($url) . '">' . __('Sync', 'acf') . '</a> | </span>
						<span class="review"><a href="#" data-event="review-sync" data-id="' . esc_attr($field_group['ID']) . '" data-href="' . esc_url($url) . '">' . __('Review changes', 'acf') . '</a></span>
					</div>';
                    } else {
                        echo '<div class="row-actions">
						<span class="sync"><a href="' . esc_url($url) . '">' . __('Import', 'acf') . '</a></span>
					</div>';
                    }
                } else {
                    echo __('Saved', 'acf');
                }
            } else {
                echo '<span class="acf-secondary-text">' . __('Awaiting save', 'acf') . '</span>';
            }
        }
        public function page_row_actions($actions, $post)
        {
            unset($actions['inline'], $actions['inline hide-if-no-js']);
            $duplicate_action_url = $this->get_admin_url('&acfduplicate=' . $post->ID . '&_wpnonce=' . wp_create_nonce('bulk-posts'));
            $actions['acfduplicate'] = '<a href="' . esc_url($duplicate_action_url) . '" aria-label="' . esc_attr__('Duplicate this item', 'acf') . '">' . __('Duplicate', 'acf') . '</a>';
            $order = array('edit', 'acfduplicate', 'trash');
            return array_merge(array_flip($order), $actions);
        }
        public function admin_table_bulk_actions($actions)
        {
            if ($this->view !== 'sync') {
                $actions['acfduplicate'] = __('Duplicate', 'acf');
            }
            if ($this->sync) {
                if ($this->view === 'sync') {
                    $actions = array();
                }
                $actions['acfsync'] = __('Sync changes', 'acf');
            }
            return $actions;
        }
        public function check_duplicate()
        {
            if (isset($_GET['acfduplicatecomplete'])) {
                $ids = array_map('intval', explode(',', $_GET['acfduplicatecomplete']));
                $text = sprintf(_n('Field group duplicated.', '%s field groups duplicated.', count($ids), 'acf'), count($ids));
                $links = array();
                foreach ($ids as $id) {
                    $links[] = '<a href="' . get_edit_post_link($id) . '">' . get_the_title($id) . '</a>';
                }
                $text .= ' ' . implode(', ', $links);
                acf_add_admin_notice($text, 'success');
                return;
            }
            $ids = array();
            if (isset($_GET['acfduplicate'])) {
                $ids[] = intval($_GET['acfduplicate']);
            } elseif (isset($_GET['post'], $_GET['action2']) && $_GET['action2'] === 'acfduplicate') {
                $ids = array_map('intval', $_GET['post']);
            }
            if ($ids) {
                check_admin_referer('bulk-posts');
                $new_ids = array();
                foreach ($ids as $id) {
                    $field_group = acf_duplicate_field_group($id);
                    $new_ids[] = $field_group['ID'];
                }
                wp_redirect($this->get_admin_url('&acfduplicatecomplete=' . implode(',', $new_ids)));
                exit;
            }
        }
        public function check_sync()
        {
            if (isset($_GET['acfsynccomplete'])) {
                $ids = array_map('intval', explode(',', $_GET['acfsynccomplete']));
                $text = sprintf(_n('Field group synchronised.', '%s field groups synchronised.', count($ids), 'acf'), count($ids));
                $links = array();
                foreach ($ids as $id) {
                    $links[] = '<a href="' . get_edit_post_link($id) . '">' . get_the_title($id) . '</a>';
                }
                $text .= ' ' . implode(', ', $links);
                acf_add_admin_notice($text, 'success');
                return;
            }
            $keys = array();
            if (isset($_GET['acfsync'])) {
                $keys[] = sanitize_text_field($_GET['acfsync']);
            } elseif (isset($_GET['post'], $_GET['action2']) && $_GET['action2'] === 'acfsync') {
                $keys = array_map('sanitize_text_field', $_GET['post']);
            }
            if ($keys && $this->sync) {
                check_admin_referer('bulk-posts');
                acf_update_setting('json', false);
                $files = acf_get_local_json_files();
                $new_ids = array();
                foreach ($this->sync as $key => $field_group) {
                    if ($field_group['key'] && in_array($field_group['key'], $keys)) {
                    } elseif ($field_group['ID'] && in_array($field_group['ID'], $keys)) {
                    } else {
                        continue;
                    }
                    $local_field_group = json_decode(file_get_contents($files[$key]), true);
                    $local_field_group['ID'] = $field_group['ID'];
                    $result = acf_import_field_group($local_field_group);
                    $new_ids[] = $result['ID'];
                }
                wp_redirect($this->get_current_admin_url('&acfsynccomplete=' . implode(',', $new_ids)));
                exit;
            }
        }
        public function admin_table_views($views)
        {
            global $wp_list_table, $wp_query;
            $count = count($this->sync);
            if ($count) {
                $views['sync'] = sprintf('<a %s href="%s">%s <span class="count">(%s)</span></a>', $this->view === 'sync' ? 'class="current"' : '', esc_url($this->get_admin_url('&post_status=sync')), esc_html(__('Sync available', 'acf')), $count);
            }
            if ($this->view === 'sync') {
                $wp_list_table->set_pagination_args(array('total_items' => $count, 'total_pages' => 1, 'per_page' => $count));
                $wp_query->post_count = 1;
            }
            return $views;
        }
        function admin_footer()
        {
            ?>
<script type="text/javascript">
(function($){

// Displays a modal comparing local changes.
	function reviewSync( props ) {
		var modal = acf.newModal({
			title: acf.__('Review local JSON changes'),
			content: '<p class="acf-modal-feedback"><i class="acf-loading"></i> ' + acf.__('Loading diff') + '</p>',
			toolbar: '<a href="' + props.href + '" class="button button-primary button-sync-changes disabled">' + acf.__('Sync changes') + '</a>',
		});
		
		// Call AJAX.
		var xhr = $.ajax({
			url: acf.get('ajaxurl'),
			method: 'POST',
			dataType: 'json',
			data: acf.prepareForAjax({
				action:	'acf/ajax/local_json_diff',
				id: props.id
			})
		})
		.done(function( data, textStatus, jqXHR ) {
			modal.content( data.html );
			modal.$('.button-sync-changes').removeClass('disabled');
		})
		.fail(function( jqXHR, textStatus, errorThrown ) {
			if( error = acf.getXhrError(jqXHR) ) {
				modal.content( '<p class="acf-modal-feedback error">' + error + '</p>' );
			}
		});
	}
	
	// Add event listener.
	$(document).on('click', 'a[data-event="review-sync"]', function( e ){
		e.preventDefault();
		reviewSync( $(this).data() );
	});
})(jQuery);
</script>
			<?php 
        }
        public function admin_footer__sync()
        {
            global $wp_list_table;
            $columns = $wp_list_table->get_columns();
            $hidden = get_hidden_columns($wp_list_table->screen);
            ?>
<div style="display: none;">
<table>
	<tbody id="acf-the-list">
			<?php 
            foreach ($this->sync as $k => $field_group) {
                echo '<tr>';
                foreach ($columns as $column_name => $column_label) {
                    $el = 'td';
                    if ($column_name === 'cb') {
                        $el = 'th';
                        $classes = 'check-column';
                        $column_label = '';
                    } elseif ($column_name === 'title') {
                        $classes = "{$column_name} column-{$column_name} column-primary";
                    } else {
                        $classes = "{$column_name} column-{$column_name}";
                    }
                    if (in_array($column_name, $hidden, true)) {
                        $classes .= ' hidden';
                    }
                    echo "<{$el} class=\"{$classes}\" data-colname=\"{$column_label}\">";
                    switch ($column_name) {
                        case 'cb':
                            echo '<label for="cb-select-' . esc_attr($k) . '" class="screen-reader-text">' . esc_html(sprintf(__('Select %s', 'acf'), $field_group['title'])) . '</label>';
                            echo '<input id="cb-select-' . esc_attr($k) . '" type="checkbox" value="' . esc_attr($k) . '" name="post[]">';
                            break;
                        case 'title':
                            $post_state = '';
                            if (!$field_group['active']) {
                                $post_state = ' — <span class="post-state">' . $this->get_disabled_post_state() . '</span>';
                            }
                            echo '<strong><span class="row-title">' . esc_html($field_group['title']) . '</span>' . $post_state . '</strong>';
                            echo '<div class="row-actions"><span class="file acf-secondary-text">' . $this->get_human_readable_file_location($field_group['local_file']) . '</span></div>';
                            echo '<button type="button" class="toggle-row"><span class="screen-reader-text">Show more details</span></button>';
                            break;
                        default:
                            $this->render_admin_table_column($column_name, $field_group);
                            break;
                    }
                    echo "</{$el}>";
                }
                echo '</tr>';
            }
            ?>
	</tbody>
</table>
</div>
<script type="text/javascript">
(function($){
	$('#the-list').html( $('#acf-the-list').children() );
})(jQuery);
</script>
			<?php 
        }
        public function trashed_post($post_id)
        {
            if (get_post_type($post_id) === 'acf-field-group') {
                acf_trash_field_group($post_id);
            }
        }
        public function untrashed_post($post_id)
        {
            if (get_post_type($post_id) === 'acf-field-group') {
                acf_untrash_field_group($post_id);
            }
        }
        public function deleted_post($post_id)
        {
            if (get_post_type($post_id) === 'acf-field-group') {
                acf_delete_field_group($post_id);
            }
        }
    }
    acf_new_instance('ACF_Admin_Field_Groups');
}