<?php
require_once( 'parser.php' );

/*
define( 'FAULT_MINOR', 0 );
define( 'FAULT_MEDIUM', 1 );
define( 'FAULT_MAJOR', 2 );
*/

$modules = array();

class ScannerModule {
	var $faults;
	var $blame;
	
	function ScannerModule() {
		$this->faults = array();
		$this->blame = array();
	}
	function fault( $object, $level, $reason = '' ) {
		$this->faults[] = array(
			'object'	=> $object,
			'level'		=> $level,
			'reason'	=> $reason,
			'svn'		=> $this->blame[$object['line']]
		);
	}
	function parserCallback( $object ) {
	}
	function preScan( $filename ) {
		$this->blame = array();
		$output = array();
		exec( "svn blame '$filename' 2>/dev/null", $output, $result );
		if( $result == 0 ) {
			foreach( $output as $line => $text ) {
				$matches = array();
				preg_match( '/^\s*(\d+)\s+([^\s]+)/', $text, $matches );
				$this->blame[$line + 1] = array(
					'author' => $matches[2],
					'revision' => $matches[1]
				);
			}
		}
	}
	function postScan( $filename ) {
	}
}

function _callback( $object ) {
	global $modules;
	foreach( $modules as $module ) {
		$module->parserCallback( $object );
	}
}

// Dig into the modules folder and load up what we find
$module_files = scandir( 'modules' );
foreach( $module_files as $module_file ) {
	if( strtolower( substr( $module_file, -4 ) ) == '.php' ) {
		require_once( "modules/{$module_file}" );
	}
}

$parser = new PHPParser( PHPPARSER_FETCH_EXPRESSIONS | PHPPARSER_FETCH_CALLS | PHPPARSER_FETCH_INTERNAL | PHPPARSER_FETCH_CONSTRUCTS );
$parser->registerCallback( '_callback' );

$files = array();
for( $i = 1; $i < $argc; $i++ ) {
	if( file_exists( $argv[$i] ) && strtolower( substr( $argv[$i], -4 ) ) == '.php' ) {
		$files[] = $argv[$i];
	}
}

if( count( $files ) == 0 ) {
	die( "No files were specified.\n" );
}

foreach( $files as $file ) {
	foreach( $modules as $module ) { $module->preScan( $file ); }
	$parser->parseFile( $file );
}

foreach( $modules as $module ) {
	foreach( $module->faults as $fault ) {
		$svn = serialize( $fault['svn'] );
		printf( "%s %s - %s\n -- %s:%d, %s r%d\n",
			get_class( $module ),
			$fault['level'],
			$fault['reason'],
			$fault['object']['file'],
			$fault['object']['line'],
			isset( $fault['svn']['author'] ) ? $fault['svn']['author'] : '?',
			isset( $fault['svn']['revision'] ) ? $fault['svn']['revision'] : '?'
		);
	}
}

?>