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<?php
class Brizy_Logger {
const EMERGENCY_LOG = 'EMERGENCY';
const ALERT_LOG = 'ALERT';
const CRITICAL_LOG = 'CRITICAL';
const ERROR_LOG = 'ERROR';
const WARNING_LOG = 'WARNING';
const NOTICE_LOG = 'NOTICE';
const INFO_LOG = 'INFO';
const DEBUG_LOG = 'DEBUG';
/**
* @var self
*/
static protected $instance = null;
/**
* Get logger instance.
*/
static public function instance() {
if ( self::$instance ) {
return self::$instance;
}
return self::$instance = new self();
}
/**
* Create logger table.
*/
static public function install() {
global $wpdb;
$create_table_query = "
CREATE TABLE IF NOT EXISTS `{$wpdb->prefix}brizy_logs` (
`id` bigint PRIMARY KEY AUTO_INCREMENT,
`type` text NOT NULL,
`message` text NOT NULL,
`context` text NOT NULL,
`session_id` text NOT NULL,
`date` datetime NOT NULL
) DEFAULT CHARSET=utf8;";
require_once( ABSPATH . 'wp-admin/includes/upgrade.php' );
dbDelta( $create_table_query );
self::clean();
}
/**
* Create logger table.
*/
static public function clean() {
global $wpdb;
$wpdb->query( "TRUNCATE `{$wpdb->prefix}brizy_logs`" );
}
/**
* @param $type
* @param $message
* @param array $context
*/
private function write_log( $type, $message, $context = array() ) {
global $wpdb;
if ( ! BRIZY_LOG && ! in_array( $type, [
self::EMERGENCY_LOG,
self::ALERT_LOG,
self::CRITICAL_LOG,
self::ERROR_LOG,
] ) ) {
return;
}
$wpdb->insert( "{$wpdb->prefix}brizy_logs", array(
'type' => $type,
'message' => $message,
'context' => serialize( $context ),
'session_id' => session_id(),
'date' => current_time( 'mysql', 1 )
), array( '%s', '%s', '%s', '%s', '%s' ) );
}
/**
* System is unusable.
*
* @param string $message
* @param array $context
*
* @return void
*/
public function emergency( $message, array $context = array() ) {
$this->log( self::EMERGENCY_LOG, $message, $context );
}
/**
* Action must be taken immediately.
*
* Example: Entire website down, database unavailable, etc. This should
* trigger the SMS alerts and wake you up.
*
* @param string $message
* @param array $context
*
* @return void
*/
public function alert( $message, array $context = array() ) {
$this->log( self::ALERT_LOG, $message, $context );
}
/**
* Critical conditions.
*
* Example: Application component unavailable, unexpected exception.
*
* @param string $message
* @param array $contextgt
*
* @return void
*/
public function critical( $message, array $context = array() ) {
$this->log( self::CRITICAL_LOG, $message, $context );
}
/**
* Runtime errors that do not require immediate action but should typically
* be logged and monitored.
*
* @param string $message
* @param array $context
*
* @return void
*/
public function error( $message, array $context = array() ) {
$this->log( self::ERROR_LOG, $message, $context );
}
/**
* Exceptional occurrences that are not errors.
*
* Example: Use of deprecated APIs, poor use of an API, undesirable things
* that are not necessarily wrong.
*
* @param string $message
* @param array $context
*
* @return void
*/
public function warning( $message, array $context = array() ) {
$this->log( self::WARNING_LOG, $message, $context );
}
/**
* Normal but significant events.
*
* @param string $message
* @param array $context
*
* @return void
*/
public function notice( $message, array $context = array() ) {
$this->log( self::NOTICE_LOG, $message, $context );
}
/**
* Interesting events.
*
* Example: User logs in, SQL logs.
*
* @param string $message
* @param array $context
*
* @return void
*/
public function info( $message, array $context = array() ) {
$this->log( self::INFO_LOG, $message, $context );
}
/**
* Detailed debug information.
*
* @param string $message
* @param array $context
*
* @return void
*/
public function debug( $message, array $context = array() ) {
$this->log( self::DEBUG_LOG, $message, $context );
}
/**
* Logs with an arbitrary level.
*
* @param mixed $level
* @param string $message
* @param array $context
*
* @return void
*/
public function log( $level, $message, array $context = array() ) {
$this->write_log( $level, $message, $context );
}
/**
* @param Exception $exception
*/
public function exception( \Exception $exception ) {
$this->log( self::ERROR_LOG, $exception->getMessage(), array( $exception->getTraceAsString() ) );
}
}