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✏️ Editing: class-evaluate-functions.php

<?php

namespace Evaluation;

use Code_Snippets\DB;
use Code_Snippets\REST_API\Snippets_REST_Controller;
use Code_Snippets\Settings;
use Code_Snippets\Snippet_Files;
use function Code_Snippets\clean_active_snippets_cache;
use function Code_Snippets\clean_snippets_cache;
use function Code_Snippets\execute_snippet;
use function Code_Snippets\code_snippets;
use function Code_Snippets\execute_snippet_from_flat_file;

/**
 * Class for evaluating functions snippets.
 *
 * @package Code_Snippets
 */
class Evaluate_Functions {

/**
	 * Database class.
	 *
	 * @var DB
	 */
	private DB $db;

/**
	 * Class constructor.
	 *
	 * @param DB $db Database class instance.
	 */
	public function __construct( DB $db ) {
		$this->db = $db;
		add_action( 'plugins_loaded', [ $this, 'evaluate_early' ], 1 );
	}

/**
	 * Retrieve details about the currently edited snippet, if any.
	 *
	 * @return ?array{id: int, table: string}
	 */
	private function get_currently_editing_snippet(): ?array {
		if ( wp_is_json_request() && ! empty( $_SERVER['REQUEST_URI'] ) ) {
			$url = wp_parse_url( esc_url_raw( wp_unslash( $_SERVER['REQUEST_URI'] ) ) );

if ( isset( $url['path'] ) && false !== strpos( $url['path'], Snippets_REST_Controller::get_prefixed_base_route() ) ) {
				$path_parts = explode( '/', $url['path'] );
				$edit_id = intval( end( $path_parts ) );

if ( ! empty( $url['query'] ) ) {
					wp_parse_str( $url['query'], $path_params );
					$edit_table = isset( $path_params['network'] ) && rest_sanitize_boolean( $path_params['network'] )
						? $this->db->ms_table
						: $this->db->table;
				}

return [
					'id'    => $edit_id,
					'table' => $edit_table ?? $this->db->table,
				];
			}
		}

return null;
	}

/**
	 * Check if the plugin is running in safe mode.
	 *
	 * @return bool
	 *
	 * @noinspection PhpUndefinedConstantInspection
	 */
	public function is_safe_mode_active(): bool {
		return ( defined( 'CODE_SNIPPETS_SAFE_MODE' ) && CODE_SNIPPETS_SAFE_MODE ) ||
		       ! apply_filters( 'code_snippets/execute_snippets', true );
	}

/**
	 * Quickly deactivate a snippet with minimal overhead.
	 *
	 * @param int    $snippet_id ID of the snippet to deactivate.
	 * @param string $table_name Name of the table where the snippet is stored.
	 *
	 * @return void
	 */
	private function quick_deactivate_snippet( int $snippet_id, string $table_name ) {
		global $wpdb;

$active_shared_ids = get_option( 'active_shared_network_snippets', [] );
		$active_shared_ids = is_array( $active_shared_ids )
			? array_map( 'intval', $active_shared_ids )
			: [];

if ( $table_name === $this->db->ms_table && in_array( $snippet_id, $active_shared_ids, true ) ) {
			unset( $active_shared_ids[ array_search( $snippet_id, $active_shared_ids, true ) ] );
			$active_shared_ids = array_values( $active_shared_ids );
			update_option( 'active_shared_network_snippets', $active_shared_ids );
			clean_active_snippets_cache( $table_name );
		} else {
			$wpdb->update(
				$table_name,
				[ 'active' => '0' ],
				[ 'id' => $snippet_id ],
				[ '%d' ],
				[ '%d' ]
			);
			clean_snippets_cache( $table_name );

$network = $table_name === $this->db->ms_table;
			do_action( 'code_snippets/deactivate_snippet', $snippet_id, $network );
		}
	}

private function evaluate_snippet_flat_file( array $snippet, string $file_path, ?array $edit_snippet = null ) {
		$snippet_id = $snippet['id'];
		$code = $snippet['code'];
		$table_name = $snippet['table'];

// If the snippet is a single-use snippet, deactivate it before execution to ensure that the process always happens.
		if ( 'single-use' === $snippet['scope'] ) {
			$this->quick_deactivate_snippet( $snippet_id, $table_name );
		}

if ( ! is_null( $edit_snippet ) && $edit_snippet['id'] === $snippet_id && $edit_snippet['table'] === $table_name ) {
			return;
		}

if ( apply_filters( 'code_snippets/allow_execute_snippet', true, $snippet_id, $table_name ) ) {
			execute_snippet_from_flat_file( $code, $file_path, $snippet_id );
		}
	}

/**
	 * Evaluate applicable active snippets as early as possible.
	 *
	 * @return bool True if snippets were evaluated, false if safe mode is active.
	 */
	public function evaluate_early(): bool {
		if ( $this->is_safe_mode_active() ) {
			return false;
		}

if ( Snippet_Files::is_active() ) {
			return $this->evaluate_file_snippets();
		}

return $this->evaluate_db_snippets();
	}

public function evaluate_db_snippets(): bool {
		$scopes = [ 'global', 'single-use', is_admin() ? 'admin' : 'front-end' ];
		$active_snippets = $this->db->fetch_active_snippets( $scopes );
		$edit_snippet = $this->get_currently_editing_snippet();

foreach ( $active_snippets as $snippet ) {
			$snippet_id = $snippet['id'];
			$code = $snippet['code'];
			$table_name = $snippet['table'];

// If the snippet is a single-use snippet, deactivate it before execution to ensure that the process always happens.
			if ( 'single-use' === $snippet['scope'] ) {
				$this->quick_deactivate_snippet( $snippet_id, $table_name );
			}

if ( apply_filters( 'code_snippets/allow_execute_snippet', true, $snippet_id, $table_name ) &&
			     ( is_null( $edit_snippet ) || $edit_snippet['id'] !== $snippet_id || $edit_snippet['table'] !== $table_name ) ) {
				execute_snippet( $code, $snippet_id );
			}
		}

return true;
	}

private function evaluate_file_snippets(): bool {
		$type = 'php';
		$scopes = [ 'global', 'single-use', is_admin() ? 'admin' : 'front-end' ];
		$snippets = Snippet_Files::get_active_snippets_from_flat_files( $scopes, $type );
		$edit_snippet = $this->get_currently_editing_snippet();

foreach ( $snippets as $snippet ) {
			$table_name = Snippet_Files::get_hashed_table_name( $snippet['table'] );
			$base_path = Snippet_Files::get_base_dir( $table_name, $type );
			$file = $base_path . '/' . $snippet['id'] . '.' . $type;

$this->evaluate_snippet_flat_file( $snippet, $file, $edit_snippet );
		}

return true;
	}
}

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