<?php
/**
 *  
 * @author  Benjamin Gillissen <hide@address.com>
 * 
 *	**************************************************************

	Copyright (C) 2009  Benjamin Gillissen
	
	This program is free software; you can redistribute it and/or
	modify it under the terms of the GNU General Public License
	as published by the Free Software Foundation; either version 2
	of the License, or (at your option) any later version.
	
	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details at:
	http://www.gnu.org/copyleft/gpl.html

 *	**************************************************************
 */

class errmsg {
	
	protected $ident;
	private $format, $color, $coltype;
	private $colors;
	
	public function __construct($ident, $conf){ 
		if ( !isset($conf['format']) ){ $conf['format'] = '%msg%'; }
		if ( !isset($conf['color']) ){ $conf['color'] = FALSE; }
		if ( !isset($conf['coltype']) ){ 
			$conf['coltype'] = ''; 
			if ( $conf['color'] ){ $conf['coltype'] = 'html'; }
		}
		if ( isset($conf['colors']['lvls']) AND isset($conf['colors']['info']) ){
			$this->colors = $conf['colors'];
		} elseif ( $conf['color'] ){	
			//we use color, and no colors gived
			$this->colors['lvls'] = Array(	'notice' 	=> 'White',
											'debug' 	=> 'Green',
											'warning' 	=> 'Yellow',
											'info' 		=> 'Blue',
											'err' 		=> 'Maroon',
											'alert' 	=> 'Red',
											'crit' 		=> 'Red',
											'emerg' 	=> 'Red',
										);
			$this->colors['info'] = Array(	'pid' 		=> 'Teal',
											'file' 		=> 'Teal',
											'line' 		=> 'Purple',
											'context' 	=> 'Yellow',
											'function' 	=> 'Purple',
											'class' 	=> 'Green',
											'method' 	=> 'Yellow',
											'args' 		=> 'Teal',
											'msg' 		=> '',
											'ident' 	=> 'Gray',
											'time' 		=> '',
										);
		}
		$this->ident = $ident;
		$this->format = $conf['format'];
		$this->color = $conf['color'];
		$this->coltype = $conf['coltype'];
	}
	
	
	public function buildmsg($err){
		if ( !CORE::isError($err) ){ return FALSE; }
		$ar['pid'] 		= $this->colorise(  posix_getpid(),			$this->get_colortags('pid')	);
		$ar['level'] 	= $this->colorise(  errors::lvl_to_dsp($err->getlvl()), $this->get_leveltags($err->getlvl())	);
		$msg = $err->getmsg();
		if ( $this->coltype == 'html' ){ $msg = htmlentities($msg, ENT_QUOTES, CORE::getintcharset()); }
		$ar['msg'] 		= $this->colorise(  $msg, 		$this->get_leveltags($err->getlvl()) 	);
		unset($msg);
		$ar['context']	= $this->colorise(  $err->getcontext(), 	$this->get_colortags('context')	);
		$ar['file'] 	= $this->colorise(  $err->getfile(),		$this->get_colortags('file')	);
		$ar['line'] 	= $this->colorise( 	$err->getline(),		$this->get_colortags('line')	);
		$ar['ident'] 	= $this->colorise( 	$this->ident,			$this->get_colortags('ident')	);
		$ar['hour']		= $this->colorise( 	@date('H', time()),		$this->get_colortags('time')	);
		$ar['min']		= $this->colorise( 	@date('i', time()),		$this->get_colortags('time')	);
		$buf = split('\.', chrono::get_microtime());
		$ar['usec']		= $this->colorise( 	$buf[1],				$this->get_colortags('time')	);
		$ar['sec']		= $this->colorise( 	@date('s', time()),		$this->get_colortags('time')	);
		$ar['date']		= $this->colorise( 	@date('d-m-Y', time()),	$this->get_colortags('time')	);
		$buf = $this->format;
		foreach($ar as $var => $val){
			$buf = str_replace('%'.$var.'%', $val, $buf);
		}
		if ( ereg('%backtrace%', $this->format) ){
			$buf = str_replace('%backtrace%', $this->buildbacktrace($err->getbacktrace(), PHP_EOL), $buf);
		}
		unset($err);
		return $buf;
	}
	
	public function disable_color(){ $this->color = FALSE; }
	
	private function get_colortags($type){
		if ( isset($this->colors['info'][$type]) ){
			return $this->colortags($this->colors['info'][$type], $type);
		}
		return $this->colortags('', $type);
	}
	
	private function get_leveltags($level){
		$level = errors::lvl_to_dsp($level);
		if ( isset($this->colors['lvls'][$level]) ){
			return $this->colortags($this->colors['lvls'][$level], $level);
		}
		return $this->colortags('', $level);
	}
	
	private function colortags($color=NULL, $type=NULL){
		switch( $this->coltype ){
			case 'html' :	if ( empty($color) ){
								$tags = '%s';
							} else {
								$tags = '<font color="'.$color.'">%s</font>';
							}
							break;
			case 'css'	:	$tags = '<span class="logs_'.$type.'">%s</span>';
							break;
			case 'shell' :	$tags['white']	= '%s';
							/*
								TODO Get shell color tags somewhere
							*/
							$tags = $tags[$color];
							break;
			case FALSE :	$tags='%s';
							break;
		}
		return $tags;
	}
	
	private function colorise($string, $tags){
		if ( $this->color ){
			if ( !is_array($string) AND !is_array($tags) AND !empty($string) ){
				return sprintf($tags, $string);
			}
		}
		return $string;
	}
	
	public function buildbacktrace( $backtrace, $eol ){
		$tot = count($backtrace);
		foreach( $backtrace as $k => $entry ){
			$out[$tot]['file'] 	= $this->colorise( basename($entry['file']), $this->get_colortags('file')	);
			$out[$tot]['line'] 	= $this->colorise( $entry['line'], $this->get_colortags('line')				);
			$out[$tot]['class'] 	= $this->colorise( 	$entry['class'],
														$this->get_colortags('class')			);
			$out[$tot]['function']	= $this->colorise(  $entry['function'],
														$this->get_colortags('function')		);
			$out[$tot]['type'] = $entry['type'];
			$buf = Array();
			foreach($entry['args'] as $arg){
				if ( is_object($arg) ){
					$buf[] = $this->colorise( get_class($arg), $this->get_colortags('class') );
				} elseif ( is_array($arg) ) {
					$buf[] = $this->colorise( 'Array', $this->get_colortags('class') );
				} else {
					if ( $this->coltype == 'html'){ $arg = htmlentities($arg); }
					$buf[] = $this->colorise( $arg, $this->get_colortags('args') );
				}
			}
			$out[$tot]['args'] = implode(', ', $buf);
			unset($buf, $entry);
			$tot--;
		}
		ksort($out);
		unset($out[count($out)]);
		unset($out[count($out)]);	
		unset($out[count($out)]);
		foreach($out as $k => $i){
			$bck[] =  	'|'.str_repeat('-', $k).'> '.$i['file'].':'.$i['line'].' => '.
						$i['class'].$i['type'].$i['function'].'('.$i['args'].')';
		}
		if ( !isset($bck) ){ $bck = Array(); }
		return implode($eol, $bck);
	}
}