<?php

class Router {
  var $_routes = array();

  function addRoute($path,$to) {
    $this->_routes[] = array($path,$to);
  }
  function getRoute($path) {
    $returnroute = '';
    /*
       loop through each route in the routes file and find
       the first match
       */
    foreach ($this->_routes as $route) {
      $matches = true;
      $part = '';
      $key = -1;
      /*
         loop through each token in the route and compare
         to each token in the requested URI
         */
      foreach ($route[0] as $key=>$part) {
        if ($part == '*') {
          break;
        }
        if ($part == '?') {
          break;
        }
        if (!isset($path[$key])) {
          $matches = false;
          break;
        }
        if (preg_match('/^\/[^\/]*\/$/',$part)) { // it's a regex
          if (!preg_match($part,$path[$key])) {
            $matches = false;
            break;
          }
        } else {
          if ($part != $path[$key]) {
            $matches = false;
            break;
          }
        }
      }
      if ($part != '*' && isset($path[$key+1])) {
        $matches = false;
      }
      if ($matches) {
        // this route matches, so return it
        $returnroute = array();
        $controller = $route[1]['controller'];
        $action = $route[1]['action'];
        foreach ($path as $k=>$val) {
          $controller = str_replace('{'.$k.'}',$val,$controller);
          $action = str_replace('{'.$k.'}',$val,$action);
        }
        $returnroute = array('controller'=>$controller,'action'=>$action,'params'=>$path);
      }
    }
    if ($returnroute == '') {
      $returnroute = array(
          'controller'=>$path[0],
          'action'=>(isset($path[1]) ? $path[1] : 'index'),
          'params'=>$path
          );
    }
    return $returnroute;
  }
}

?>