<?php
/**
 * Created by PhpStorm.
 * User: Christof
 * Date: 01.12.2018
 * Time: 11:36
 */

if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly

class ATKPLog {
		private static $log;
		public static $logenabled;

		public static function Init( $filepath, $priority ) {
				ATKPLog::$logenabled = false;

				if ( $priority != 'off' && $priority != '' ) {
						if ( ! class_exists( 'KLogger' ) ) {
								require_once ATKP_PLUGIN_DIR . '/lib/klogger.php';
						}

						$logpriority = KLogger::OFF;

						switch ( $priority ) {
								case 'debug':
										ATKPLog::$logenabled = true;
										$logpriority         = KLogger::DEBUG;
										break;
								case 'error':
										ATKPLog::$logenabled = true;
										$logpriority         = KLogger::ERROR;
										break;
						}

						ATKPLog::$log = new KLogger ( $filepath, $logpriority );
				}
		}

		public static function LogInfo( $line ) {
				if ( ! ATKPLog::$logenabled ) {
						return;
				}

				ATKPLog::$log->LogInfo( $line );
		}

		public static function LogDebug( $line, $context = null ) {
				if ( ! ATKPLog::$logenabled ) {
						return;
				}

				ATKPLog::$log->LogDebug( $line );

				if ( $context != null ) {
						ATKPLog::$log->LogDebug( ATKPLog::contextToString( $context ) );
				}
		}

		/**
		 * Takes the given context and coverts it to a string.
		 *
		 * @param  array $context The Context
		 *
		 * @return string
		 */
		protected static function contextToString( $context ) {
				$export = '';
				foreach ( $context as $key => $value ) {
						$export .= "{$key}: ";
						$export .= preg_replace( array(
								'/=>\s+([a-zA-Z])/im',
								'/array\(\s+\)/im',
								'/^  |\G  /m'
						), array(
								'=> $1',
								'array()',
								'    '
						), str_replace( 'array (', 'array(', var_export( $value, true ) ) );
						$export .= PHP_EOL;
				}

				return str_replace( array( '\\\\', '\\\'' ), array( '\\', '\'' ), rtrim( $export ) );
		}

		public static function LogWarn( $line ) {
				if ( ! ATKPLog::$logenabled ) {
						return;
				}

				ATKPLog::$log->LogWarn( $line );
		}

		public static function LogError( $line ) {
				if ( ! ATKPLog::$logenabled ) {
						return;
				}

				ATKPLog::$log->LogError( $line );
		}

}