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<?php
namespace QuadLayers\TTF\Utils;
/**
* QuadLayers Cache
* Version: 1.0.0
* Date: 07/09/2022
*/
/**
* Cache Class
*/
class Cache {
private static $disable_cache_test = false;
private static $force_expiration_test = false;
private static $prefix = 'qlttf_cache_';
private static $min_expiration_lapse_in_hours = 1;
private static $autoexpires;
private static $expiration_lapse_in_hours;
private static $current_time_timestamp;
private $dynamic_prefix = '';
/**
* Class constructor
*
* @param int $expiration_time
*/
public function __construct( int $expiration_lapse_in_hours, $autoexpires, $add_prefix ) {
$this->dynamic_prefix = $add_prefix;
self::$expiration_lapse_in_hours = max( self::$min_expiration_lapse_in_hours, absint( $expiration_lapse_in_hours ) );
self::$autoexpires = $autoexpires;
self::$current_time_timestamp = current_time( 'timestamp' );
}
public function get_prefix() {
return static::$prefix . $this->dynamic_prefix;
}
/**
* Get the expiration date
*
* @param int $date
* @return void
*/
public function get_cache_expiration_timestamp( int $cache_timestamp ) {
if ( self::$force_expiration_test ) {
return 0;
}
return $cache_timestamp + self::$min_expiration_lapse_in_hours * HOUR_IN_SECONDS;
}
/**
* Return true if a date is expired, false if not
*
* @param int $date
* @return boolean
*/
public function is_cache_expired( int $cache_timestamp ) {
// retorna true si se vencio, false si no se vencio
/**
* Conditional to hardcode function return true
*/
if ( ! self::$disable_cache_test ) {
return self::$current_time_timestamp > $this->get_cache_expiration_timestamp( $cache_timestamp ); // Funcion
}
return true;
}
/**
* Get the url key to access to database
*
* @param string $str
* @return void
*/
public function get_db_url_key( string $url ) {
return $this->get_prefix() . '_' . md5( $url );
}
/**
* Get option from database
*
* @param string $url
* @return void
*/
public function get( $url ) {
$cache_option_key = $this->get_db_url_key( $url );
$cache = '';
if ( static::$autoexpires ) {
$cache = get_transient( $cache_option_key );
} else {
$cache = get_option( $cache_option_key, false );
}
if ( ! isset( $cache['timestamp'] ) || $this->is_cache_expired( $cache['timestamp'] ) ) {
return array();
}
return $cache;
}
/**
* Update option in database
*
* @param string $url
* @param array $response
* @return void
*/
public function update( $url, $response, $custom_expiration_lapse_time = null ) {
$cache_option_key = $this->get_db_url_key( $url );
$cache = array(
'response' => $response,
'timestamp' => current_time( 'timestamp' ),
);
if ( static::$autoexpires ) {
if ( ! $custom_expiration_lapse_time ) {
set_transient( $cache_option_key, $cache, static::$expiration_lapse_in_hours * 3600 );
} else {
set_transient( $cache_option_key, $cache, $custom_expiration_lapse_time );
}
} else {
update_option( $cache_option_key, $cache );
}
}
/**
* Delete option from database
*
* @param string $url
* @return void
*/
public function delete_key( $url ) {
$cache_option_key = $this->get_db_url_key( $url );
if ( static::$autoexpires ) {
delete_transient( $cache_option_key );
} else {
delete_option( $cache_option_key );
}
}
public function delete() {
global $wpdb;
$search_prefix = '%' . $this->get_prefix() . '%';
$tks = $wpdb->get_results( $wpdb->prepare( "SELECT option_name FROM $wpdb->options WHERE option_name LIKE %s", $search_prefix ) );
if ( $tks ) {
foreach ( $tks as $key => $name ) {
if ( static::$autoexpires ) {
delete_transient( str_replace( '_transient_', '', $name->option_name ) );
} else {
delete_option( $name->option_name );
}
}
}
}
}