<?php
/**
 * transient class file
 *
 * @link       https://raiolanetworks.es
 * @since      1.0.0
 *
 * @package    Wp_Database_Tools
 * @subpackage Wp_Database_Tools/includes/data
 */

/**
 * transient.
 *
 * This class defines all code necessary to manage the transient.
 *
 * @since      1.0.0
 * @package    Wp_Database_Tools
 * @subpackage Wp_Database_Tools/includes/data
 * @author     Raiola Networks <info@raiolanetworks.es>
 */
class Wp_Database_Tools_Database_Data_Transient extends Wp_Database_Tools_Database_Data {


	/**
	 * The general data of database.
	 *
	 * @since    1.0.0
	 * @access   protected
	 * @var      array    $autoload    The general data of database.
	 */
	protected $expired;

	/**
	 * The general data of database.
	 *
	 * @since    1.0.0
	 * @access   protected
	 * @var      array    $autoload    The general data of database.
	 */
	protected $autoload;

	/**
	 * The general data of database.
	 *
	 * @since    1.0.0
	 * @access   protected
	 * @var      array    $extract    The general data of database.
	 */
	protected $extract;

	/**
	 * Constructor
	 *
	 * Create the instance of a transient.
	 *
	 * @access public
	 * @since 1.0.0
	 *
	 * @param Obj   $transient   Transient row data.
	 * @param Array $feedback    Feedback array content by user meta.
	 */
	public function __construct( $transient, $feedback ) {
		parent::__construct();
		// transient data.
		$this->autoload = $transient->autoload;
		$this->extract  = $this->set_extract( $transient->transient_value );
		$this->value    = htmlentities( $transient->transient_value );
		// Common data.
		$this->id          = $transient->transient_id;
		$this->name        = $transient->transient_name;
		$this->section     = 'transients';
		$this->size        = $transient->size;
		$this->format_size = $this->get_file_size_info( $this->size );
		$this->format_size = $this->format_size['size'] . '' . $this->format_size['type'];
		$this->set_feedback( $feedback );
		$this->check_regex();
	}

	/**
	 * Determine whether to display the integer value or an extract in
	 * case the length is greater than a certain number
	 *
	 * @access public
	 * @since 1.0.0
	 *
	 * @param String $value      The transient value.
	 */
	public function set_extract( $value ) {

		return ( strlen( $value ) > 16 )
		? substr( esc_attr( wp_strip_all_tags( $value ) ), 0, 16 ) . '...'
		: '';

	}

	/**
	 * Converts bit size to a readable format
	 *
	 * @access public
	 * @since 1.0.0
	 *
	 * @param int $file_size      The size transient.
	 */
	public function get_file_size_info( $file_size ) {

		$bytes = array( 'B', 'KB', 'MB', 'GB', 'TB' );

		if ( $file_size < 1024 ) {
			$file_size = 1;
		}

		for ( $i = 0; $file_size > 1024; $i++ ) {
			$file_size /= 1024;
		}

		$db_size_info['size'] = round( $file_size, 2 );
		$db_size_info['type'] = $bytes[ $i ];

		return $db_size_info;
	}

	/**
	 * Adds the size of a record
	 *
	 * @access public
	 * @since 1.0.0
	 *
	 * @param Obj $transient      transient row data.
	 */
	public function sum_size( $transient ) {

		if ( isset( $transient->Data_length ) && isset( $transient->Index_length ) ) {
			$sum = $transient->Data_length + $transient->Index_length;
		} else {
			$sum = 0;
		}

		return $sum;

	}

	/**
	 * Set true the multiple attribute
	 *
	 * @access public
	 * @since 1.0.0
	 */
	public function set_multiple() {
		$this->multiple = true;
	}

	/**
	 * We found that the transient does not conform to certain patterns.
	 * If it does meet a pattern we set the regex property.
	 * This is done so that no such records are stored in the database,
	 * but the regex is simply stored as a string.
	 *
	 * @access public
	 * @since 1.0.0
	 */
	public function check_regex() {

		$this->set_regex( false );

		// Regex wpseo.
		if ( str_starts_with( $this->name, 'wpseo_sitemap_' ) ) {

			$pattern = '/wpseo_sitemap_([0-9]+)_cache_validator/i';
			if ( preg_match( $pattern, $this->name ) ) {
				$this->set_regex( 'wpseo_sitemap_{regex}_cache_validator' );
			}
		}

		// Regex updraft_lock_.
		if ( str_starts_with( $this->name, 'updraft_lock_' ) ) {

			$pattern = '/updraft_lock_([a-z0-9]{12})/i';
			if ( preg_match( $pattern, $this->name ) ) {
				$this->set_regex( 'updraft_lock_{regex}' );
			}
		}

		// Regex jetpack_nonce_.
		if ( str_starts_with( $this->name, 'jetpack_nonce_' ) ) {

			$pattern = '/jetpack_nonce_([0-9]{10})_([a-z0-9]{10})/i';
			if ( preg_match( $pattern, $this->name ) ) {
				$this->set_regex( 'jetpack_nonce_{regex}_{regex}' );
			}
		}

	}

	/**
	 * Return the autoload attribute.
	 *
	 * @access public
	 * @since 1.0.0
	 *
	 * @return    string this->autoload The autoload attribute.
	 */
	public function get_autoload() {
		return $this->autoload;
	}

	/**
	 * Return attributes as an array
	 *
	 * @access public
	 * @since 1.0.0
	 *
	 * @return    Array    Array attributes.
	 */
	public function return_object_vars() {
		return get_object_vars( $this );
	}

}