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<?php |
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namespace GeminiLabs\SiteReviews\Modules; |
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use DateTime; |
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use GeminiLabs\SiteReviews\Application; |
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use ReflectionClass; |
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class Console |
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{ |
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const ALERT = 'alert'; |
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const CRITICAL = 'critical'; |
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const DEBUG = 'debug'; |
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const EMERGENCY = 'emergency'; |
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const ERROR = 'error'; |
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const INFO = 'info'; |
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const NOTICE = 'notice'; |
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const WARNING = 'warning'; |
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protected $file; |
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protected $log; |
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public function __construct( Application $app ) |
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{ |
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$this->file = $app->path( 'debug.log' ); |
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$this->log = file_exists( $this->file ) |
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? file_get_contents( $this->file ) |
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: ''; |
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$this->reset(); |
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} |
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/** |
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* @return string |
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*/ |
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public function __toString() |
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{ |
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return $this->get(); |
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} |
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/** |
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* Action must be taken immediately |
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* Example: Entire website down, database unavailable, etc. This should trigger the SMS alerts and wake you up |
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* @param mixed $message |
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* @param array $context |
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* @return static |
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*/ |
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public function alert( $message, array $context = [] ) |
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{ |
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return $this->log( static::ALERT, $message, $context ); |
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} |
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/** |
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* @return void |
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*/ |
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public function clear() |
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{ |
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$this->log = ''; |
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file_put_contents( $this->file, $this->log ); |
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} |
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/** |
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* Critical conditions |
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* Example: Application component unavailable, unexpected exception |
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* @param mixed $message |
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* @param array $context |
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* @return static |
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*/ |
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public function critical( $message, array $context = [] ) |
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{ |
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return $this->log( static::CRITICAL, $message, $context ); |
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} |
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/** |
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* Detailed debug information |
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* @param mixed $message |
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* @param array $context |
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* @return static |
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*/ |
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public function debug( $message, array $context = [] ) |
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{ |
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return $this->log( static::DEBUG, $message, $context ); |
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} |
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/** |
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* System is unusable |
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* @param mixed $message |
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* @param array $context |
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* @return static |
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*/ |
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public function emergency( $message, array $context = [] ) |
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{ |
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return $this->log( static::EMERGENCY, $message, $context ); |
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} |
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/** |
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* Runtime errors that do not require immediate action but should typically be logged and monitored |
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* @param mixed $message |
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* @param array $context |
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* @return static |
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*/ |
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public function error( $message, array $context = [] ) |
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{ |
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return $this->log( static::ERROR, $message, $context ); |
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} |
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/** |
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* @return string |
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*/ |
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public function get() |
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{ |
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return empty( $this->log ) |
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? __( 'Log is empty', 'site-reviews' ) |
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: $this->log; |
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} |
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/** |
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* @return string |
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*/ |
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public function humanSize() |
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{ |
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$bytes = $this->size(); |
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$exponent = floor( log( max( $bytes, 1 ), 1024 )); |
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return round( $bytes / pow( 1024, $exponent ), 2 ).['B','KB','MB','GB'][$exponent]; |
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} |
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/** |
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* Interesting events |
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* Example: User logs in, SQL logs |
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* @param mixed $message |
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* @param array $context |
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* @return static |
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*/ |
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public function info( $message, array $context = [] ) |
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{ |
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return $this->log( static::INFO, $message, $context ); |
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} |
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/** |
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* @param mixed $level |
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* @param mixed $message |
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* @return static |
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*/ |
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public function log( $level, $message, array $context = [] ) |
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{ |
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$constants = (new ReflectionClass( __CLASS__ ))->getConstants(); |
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$constants = (array)apply_filters( 'site-reviews/log-levels', $constants ); |
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if( in_array( $level, $constants, true )) { |
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$entry = $this->buildLogEntry( $level, $message, $context ); |
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file_put_contents( $this->file, $entry, FILE_APPEND|LOCK_EX ); |
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$this->reset(); |
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} |
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return $this; |
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} |
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/** |
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* Normal but significant events |
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* @param mixed $message |
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* @param array $context |
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* @return static |
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*/ |
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public function notice( $message, array $context = [] ) |
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{ |
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return $this->log( static::NOTICE, $message, $context ); |
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} |
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/** |
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* @return int |
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*/ |
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public function size() |
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{ |
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return file_exists( $this->file ) |
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? filesize( $this->file ) |
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: 0; |
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} |
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/** |
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* Exceptional occurrences that are not errors |
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* Example: Use of deprecated APIs, poor use of an API, undesirable things that are not necessarily wrong |
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* @param mixed $message |
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* @param array $context |
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* @return static |
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*/ |
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public function warning( $message, array $context = [] ) |
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{ |
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return $this->log( static::WARNING, $message, $context ); |
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} |
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/** |
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* @param string $level |
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* @param mixed $message |
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* @return string |
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*/ |
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protected function buildLogEntry( $level, $message, array $context = [] ) |
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{ |
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return sprintf( '[%s] %s: %s%s'.PHP_EOL, |
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current_time( 'mysql' ), |
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strtoupper( $level ), |
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$this->getDebugInformation(), |
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$this->interpolate( $message, $context ) |
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); |
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} |
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/** |
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* @return void|string |
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*/ |
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protected function getDebugInformation() |
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{ |
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$caller = debug_backtrace( 0, 6 ); |
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$index = array_search( 'log', array_column( $caller, 'function' )); |
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if( $index === false |
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|| !isset( $caller[$index+2]['class'] ) |
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|| !isset( $caller[$index+2]['function'] ) |
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)return; |
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return sprintf( '[%s()->%s:%s] ', |
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$caller[$index+2]['class'], |
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$caller[$index+2]['function'], |
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$caller[$index+1]['line'] |
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); |
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} |
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/** |
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* Interpolates context values into the message placeholders |
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* @param mixed $message |
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* @param array $context |
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* @return string |
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*/ |
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protected function interpolate( $message, $context = [] ) |
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{ |
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if( $this->isObjectOrArray( $message ) || !is_array( $context )) { |
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return print_r( $message, true ); |
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} |
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$replace = []; |
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foreach( $context as $key => $value ) { |
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$replace['{'.$key.'}'] = $this->normalizeValue( $value ); |
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} |
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return strtr( $message, $replace ); |
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} |
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/** |
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* @param mixed $value |
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* @return bool |
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*/ |
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protected function isObjectOrArray( $value ) |
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{ |
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return is_object( $value ) || is_array( $value ); |
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} |
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/** |
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* @param mixed $value |
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* @return string |
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*/ |
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protected function normalizeValue( $value ) |
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{ |
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if( $value instanceof DateTime ) { |
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$value = $value->format( 'Y-m-d H:i:s' ); |
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} |
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else if( $this->isObjectOrArray( $value )) { |
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$value = json_encode( $value ); |
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} |
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return (string)$value; |
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} |
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/** |
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* @return void |
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*/ |
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protected function reset() |
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{ |
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if( $this->size() > pow( 1024, 2 ) / 2 ) { |
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$this->clear(); |
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file_put_contents( |
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$this->file, |
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$this->buildLogEntry( 'info', __( 'Log has been automatically reset (512 KB max size)', 'site-reviews' )) |
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); |
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} |
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} |
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} |
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