<?PHP

class Route{
	
	public static $routes = Array();
	public static $routes404 = Array();
	public static $path;
	
	public static function init(){
 
		$parsed_url = parse_url($_SERVER['REQUEST_URI']);//Parse Uri
		
		if(isset($parsed_url['path'])){
			self::$path = trim($parsed_url['path'],'/');
		}else{
			self::$path = '';
		}
        
	}
	
	public static function add($expression,$function){
 
		array_push(self::$routes,Array(
			'expression'=>$expression,
			'function'=>$function
		));
 
	}
	
	public static function add404($function){
		
		array_push(self::$routes404,$function);
		
	}
	
	public static function run(){
		
		$route_found = false;
		
		foreach(self::$routes as $route){
			
			if(Config::get('basepath')){
				
				$route['expression'] = '('.Config::get('basepath').')/'.$route['expression'];
				
			}
			
			//Add 'find string start' automatically
			$route['expression'] = '^'.$route['expression'];
 
			//Add 'find string end' automatically
			$route['expression'] = $route['expression'].'$';
            
			//check match	
			if(preg_match('#'.$route['expression'].'#',self::$path,$matches)){
			
				//echo $expression;
				
				array_shift($matches);//Always remove first element. This contains the whole string
				
				if(Config::get('basepath')){
					
					array_shift($matches);//Remove Basepath
					
				}
					
				call_user_func_array($route['function'], $matches);
				
				$route_found = true;
				
			}
			
		}
		
		if(!$route_found){
			
			foreach(self::$routes404 as $route404){
			
				call_user_func_array($route404, Array(self::$path));
				
			}
 
		}
		
	}
	
}