The Advanced Editor Remover

gistfile1.txt

<?php
/**
 * Plugin Name: The Advanced Editor Remover
 * Plugin URI:  https://example.com/
 * Description: Removes Advanced Editor (TinyMCE) block comments like <!-- wp:tadv/classic-paragraph --> without altering surrounding content. Includes test mode, bulk processing, undo functionality, and backup cleanup.
 * Version:     1.1.0
 * Author:      WordPress Developer
 * License:     GPL-2.0+
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit; // Exit if accessed directly
}

class TADV_Remover_Plugin {

	private static $instance = null;
	private $meta_key = '_tadv_original_content';

	public static function get_instance() {
		if ( null === self::$instance ) {
			self::$instance = new self();
		}
		return self::$instance;
	}

	public function __construct() {
		add_action( 'admin_menu', array( $this, 'register_admin_menu' ) );
		add_action( 'admin_enqueue_scripts', array( $this, 'enqueue_admin_scripts' ) );

		// AJAX hooks
		add_action( 'wp_ajax_tadv_remover_process', array( $this, 'handle_ajax_process' ) );
		add_action( 'wp_ajax_tadv_remover_undo', array( $this, 'handle_ajax_undo' ) );
		add_action( 'wp_ajax_tadv_remover_delete_meta', array( $this, 'handle_ajax_delete_meta' ) );
	}

	/**
	 * Register Tools sub-menu page
	 */
	public function register_admin_menu() {
		add_submenu_page(
			'tools.php',
			'Advanced Editor Remover',
			'Advanced Editor Remover',
			'manage_options',
			'tadv-remover',
			array( $this, 'render_admin_page' )
		);
	}

	/**
	 * Enqueue JavaScript & Inline CSS
	 */
	public function enqueue_admin_scripts( $hook ) {
		if ( 'tools_page_tadv-remover' !== $hook ) {
			return;
		}

		wp_enqueue_script( 'jquery' );
	}

	/**
	 * Clean block comment tags from content
	 */
	private function strip_tadv_tags( $content ) {
		// Matches opening, closing, and self-closing wp:tadv tags:
		// - Opening: <!-- wp:tadv/... -->
		// - Closing: <!-- /wp:tadv/... -->
		// - Self-closing: <!-- wp:tadv/... /-->
		$pattern = '/<!--\s*\/?wp:tadv\/[a-zA-Z0-9_.-]+(?:\s+\{[\s\S]*?\})?\s*\/?-->\r?\n?/i';
		return preg_replace( $pattern, '', $content );
	}

	/**
	 * Main Admin Interface
	 */
	public function render_admin_page() {
		if ( ! current_user_can( 'manage_options' ) ) {
			return;
		}

		// Count affected posts
		global $wpdb;
		$affected_count = $wpdb->get_var(
			"SELECT COUNT(ID) FROM {$wpdb->posts} 
			 WHERE post_status NOT IN ('auto-draft', 'trash') 
			 AND post_content LIKE '%wp:tadv/%'"
		);

		// Count posts with undo meta
		$undo_count = $wpdb->get_var(
			$wpdb->prepare(
				"SELECT COUNT(DISTINCT post_id) FROM {$wpdb->postmeta} WHERE meta_key = %s",
				$this->meta_key
			)
		);
		?>
		<div class="wrap">
			<h1>The Advanced Editor Remover</h1>
			<p>Find and clean <code>&lt;!-- wp:tadv/classic-paragraph --&gt;</code> comments left over from the Advanced Editor / TinyMCE plugin, preserving your actual content.</p>

			<hr>

			<div class="card" style="max-width: 800px; padding: 20px; margin-top: 20px;">
				<h2>Operation Mode</h2>
				<p>Found <strong><?php echo esc_html( $affected_count ); ?></strong> post(s) containing Advanced Editor code comments.</p>

				<form id="tadv-remover-form">
					<p>
						<label>
							<input type="radio" name="mode" value="single" checked="checked">
							<strong>Test Mode:</strong> Convert a single post first to verify results
						</label>
					</p>
					<p>
						<label>
							<input type="radio" name="mode" value="all">
							<strong>Convert All Mode:</strong> Convert all remaining posts (<?php echo esc_html( $affected_count ); ?> total)
						</label>
					</p>

					<p style="margin-top: 20px;">
						<button type="submit" id="tadv-submit-btn" class="button button-primary" <?php disabled( $affected_count, 0 ); ?>>
							Execute Cleanup
						</button>
					</p>
				</form>
			</div>

			<div class="card" style="max-width: 800px; padding: 20px; margin-top: 20px;">
				<h2>Backup Maintenance & Undo Operations</h2>
				<p>Currently <strong><?php echo esc_html( $undo_count ); ?></strong> post(s) have backup data saved in postmeta (<code><?php echo esc_html( $this->meta_key ); ?></code>).</p>
				<p>
					<button type="button" id="tadv-undo-btn" class="button button-secondary" <?php disabled( $undo_count, 0 ); ?>>
						Undo All Conversions
					</button>
					<button type="button" id="tadv-purge-btn" class="button button-secondary" style="color: #b32d2e; border-color: #b32d2e;" <?php disabled( $undo_count, 0 ); ?>>
						Purge Backup Meta
					</button>
				</p>
			</div>

			<div id="tadv-status" style="margin-top: 20px; display: none;">
				<div class="notice notice-info inline"><p id="tadv-status-text">Processing...</p></div>
			</div>

			<div id="tadv-results" style="margin-top: 20px; max-width: 1000px;"></div>
		</div>

		<script>
		jQuery(document).ready(function($) {
			$('#tadv-remover-form').on('submit', function(e) {
				e.preventDefault();
				var mode = $('input[name="mode"]:checked').val();
				
				$('#tadv-submit-btn').prop('disabled', true);
				$('#tadv-status').show();
				$('#tadv-status-text').text('Processing posts, please wait...');

				$.ajax({
					url: ajaxurl,
					type: 'POST',
					data: {
						action: 'tadv_remover_process',
						mode: mode,
						nonce: '<?php echo wp_create_nonce( "tadv_remover_nonce" ); ?>'
					},
					success: function(response) {
						$('#tadv-submit-btn').prop('disabled', false);
						$('#tadv-status').hide();
						
						if (response.success) {
							renderResultsTable(response.data.posts, response.data.message);
						} else {
							alert('Error: ' + response.data);
						}
					},
					error: function() {
						$('#tadv-submit-btn').prop('disabled', false);
						$('#tadv-status').hide();
						alert('An unexpected AJAX error occurred.');
					}
				});
			});

			$('#tadv-undo-btn').on('click', function(e) {
				if (!confirm('Are you sure you want to restore original content for all processed posts?')) {
					return;
				}

				var $btn = $(this);
				$btn.prop('disabled', true);
				$('#tadv-status').show();
				$('#tadv-status-text').text('Restoring post content from meta backups...');

				$.ajax({
					url: ajaxurl,
					type: 'POST',
					data: {
						action: 'tadv_remover_undo',
						nonce: '<?php echo wp_create_nonce( "tadv_remover_nonce" ); ?>'
					},
					success: function(response) {
						$('#tadv-status').hide();
						if (response.success) {
							alert(response.data.message);
							location.reload();
						} else {
							$btn.prop('disabled', false);
							alert('Error: ' + response.data);
						}
					},
					error: function() {
						$btn.prop('disabled', false);
						$('#tadv-status').hide();
						alert('An unexpected AJAX error occurred.');
					}
				});
			});

			$('#tadv-purge-btn').on('click', function(e) {
				if (!confirm('Are you sure you want to permanently delete all postmeta backups? You will no longer be able to undo conversions.')) {
					return;
				}

				var $btn = $(this);
				$btn.prop('disabled', true);
				$('#tadv-status').show();
				$('#tadv-status-text').text('Purging backup postmeta fields...');

				$.ajax({
					url: ajaxurl,
					type: 'POST',
					data: {
						action: 'tadv_remover_delete_meta',
						nonce: '<?php echo wp_create_nonce( "tadv_remover_nonce" ); ?>'
					},
					success: function(response) {
						$('#tadv-status').hide();
						if (response.success) {
							alert(response.data.message);
							location.reload();
						} else {
							$btn.prop('disabled', false);
							alert('Error: ' + response.data);
						}
					},
					error: function() {
						$btn.prop('disabled', false);
						$('#tadv-status').hide();
						alert('An unexpected AJAX error occurred.');
					}
				});
			});

			function renderResultsTable(posts, message) {
				if (!posts || posts.length === 0) {
					$('#tadv-results').html('<div class="notice notice-warning"><p>No posts were modified.</p></div>');
					return;
				}

				var html = '<div class="notice notice-success"><p>' + message + '</p></div>';
				html += '<table class="wp-list-table widefat fixed striped" style="margin-top:15px;">';
				html += '<thead><tr><th>Title</th><th>Post Type</th><th>Actions</th></tr></thead><tbody>';

				$.each(posts, function(i, post) {
					html += '<tr>';
					html += '<td><strong>' + post.title + '</strong> (ID: ' + post.id + ')</td>';
					html += '<td>' + post.type + '</td>';
					html += '<td>';
					html += '<a href="' + post.view_url + '" target="_blank" class="button button-small">View Post</a> ';
					html += '<a href="' + post.edit_url + '" target="_blank" class="button button-small">Edit Post</a>';
					html += '</td>';
					html += '</tr>';
				});

				html += '</tbody></table>';
				$('#tadv-results').html(html);
			}
		});
		</script>
		<?php
	}

	/**
	 * AJAX Handler: Convert Posts
	 */
	public function handle_ajax_process() {
		check_ajax_referer( 'tadv_remover_nonce', 'nonce' );

		if ( ! current_user_can( 'manage_options' ) ) {
			wp_send_json_error( 'Insufficient permissions.' );
		}

		$mode = isset( $_POST['mode'] ) ? sanitize_text_field( $_POST['mode'] ) : 'single';
		
		global $wpdb;
		$limit = ( 'single' === $mode ) ? 1 : -1;

		$query = "SELECT ID, post_title, post_type, post_content 
		          FROM {$wpdb->posts} 
		          WHERE post_status NOT IN ('auto-draft', 'trash') 
		          AND post_content LIKE '%wp:tadv/%'";

		if ( $limit > 0 ) {
			$query .= " LIMIT " . intval( $limit );
		}

		$posts = $wpdb->get_results( $query );

		if ( empty( $posts ) ) {
			wp_send_json_error( 'No posts found with Advanced Editor code comments.' );
		}

		$processed = array();

		foreach ( $posts as $post ) {
			$original_content = $post->post_content;
			$cleaned_content  = $this->strip_tadv_tags( $original_content );

			// Save backup meta only if it hasn't been saved before
			if ( ! get_post_meta( $post->ID, $this->meta_key, true ) ) {
				update_post_meta( $post->ID, $this->meta_key, $original_content );
			}

			// Update post content
			$wpdb->update(
				$wpdb->posts,
				array( 'post_content' => $cleaned_content ),
				array( 'ID' => $post->ID ),
				array( '%s' ),
				array( '%d' )
			);

			clean_post_cache( $post->ID );

			$processed[] = array(
				'id'       => $post->ID,
				'title'    => esc_html( $post->post_title ? $post->post_title : '(No Title)' ),
				'type'     => esc_html( $post->post_type ),
				'view_url' => esc_url( get_permalink( $post->ID ) ),
				'edit_url' => esc_url( get_edit_post_link( $post->ID, 'raw' ) ),
			);
		}

		$message = sprintf( 'Successfully processed %d post(s).', count( $processed ) );

		wp_send_json_success( array(
			'message' => $message,
			'posts'   => $processed,
		) );
	}

	/**
	 * AJAX Handler: Undo All Conversions
	 */
	public function handle_ajax_undo() {
		check_ajax_referer( 'tadv_remover_nonce', 'nonce' );

		if ( ! current_user_can( 'manage_options' ) ) {
			wp_send_json_error( 'Insufficient permissions.' );
		}

		global $wpdb;

		$meta_records = $wpdb->get_results(
			$wpdb->prepare(
				"SELECT post_id, meta_value FROM {$wpdb->postmeta} WHERE meta_key = %s",
				$this->meta_key
			)
		);

		if ( empty( $meta_records ) ) {
			wp_send_json_error( 'No backup content found to restore.' );
		}

		$restored_count = 0;

		foreach ( $meta_records as $record ) {
			$post_id          = intval( $record->post_id );
			$original_content = $record->meta_value;

			$wpdb->update(
				$wpdb->posts,
				array( 'post_content' => $original_content ),
				array( 'ID' => $post_id ),
				array( '%s' ),
				array( '%d' )
			);

			delete_post_meta( $post_id, $this->meta_key );
			clean_post_cache( $post_id );

			$restored_count++;
		}

		wp_send_json_success( array(
			'message' => sprintf( 'Successfully restored %d post(s) to their original state.', $restored_count ),
		) );
	}

	/**
	 * AJAX Handler: Delete Backup Postmeta
	 */
	public function handle_ajax_delete_meta() {
		check_ajax_referer( 'tadv_remover_nonce', 'nonce' );

		if ( ! current_user_can( 'manage_options' ) ) {
			wp_send_json_error( 'Insufficient permissions.' );
		}

		global $wpdb;

		$deleted = $wpdb->delete(
			$wpdb->postmeta,
			array( 'meta_key' => $this->meta_key ),
			array( '%s' )
		);

		if ( false === $deleted ) {
			wp_send_json_error( 'Failed to remove backup meta from the database.' );
		}

		wp_send_json_success( array(
			'message' => sprintf( 'Successfully purged %d backup meta record(s).', $deleted ),
		) );
	}
}

// Initialize the plugin
add_action( 'plugins_loaded', array( 'TADV_Remover_Plugin', 'get_instance' ) );