<?php
class EpiTemplate
{
  /**
   * EpiRoute::display('/path/to/template.php', $array);
   * @name  display
   * @author  Jaisen Mathai <hide@address.com>
   * @param string $template
   * @param array $vars
   * @method display
   * @static method
   */
  public function display($template = null, $vars = null)
  {
    $templateInclude = Epi::getPath('view') . '/' . $template;
    if(is_file($templateInclude))
    {
      if(is_array($vars))
      {
        extract($vars);
      }
      
      include $templateInclude;
    }
    else
    {
      EpiException::raise(new EpiException("Could not load template: {$templateInclude}", 404));
    }
  }
  
  /**
   * EpiRoute::get('/path/to/template.php', $array);
   * @name  get
   * @author  Jaisen Mathai <hide@address.com>
   * @param string $template
   * @param array $vars
   * @method get
   * @static method
   */
  public function get($template = null, $vars = null)
  {
    $templateInclude = Epi::getPath('view') . '/' . $template;
    if(is_file($templateInclude))
    {
      if(is_array($vars))
      {
        extract($vars);
      }
      ob_start();
      include $templateInclude;
      $contents = ob_get_contents();
      ob_end_clean();
      return $contents;
    }
    else
    {
      EpiException::raise(new EpiException("Could not load template: {$templateInclude}", 404));
    }
  }
  
  /**
   * EpiRoute::json($variable); 
   * @name  json
   * @author  Jaisen Mathai <hide@address.com>
   * @param mixed $data
   * @return string
   * @method json
   * @static method
   */
  public function json($data)
  {
    if($retval = json_encode($data))
    {
      return $retval;
    }
    else
    {
      $dataDump = var_export($dataDump, 1);
      EpiException::raise(new EpiException("json_encode failed for {$dataDump}", 404));
    }
  }
  
  /**
   * EpiRoute::jsonResponse($variable); 
   * This method echo's JSON data in the header and to the screen and returns.
   * @name  jsonResponse
   * @author  Jaisen Mathai <hide@address.com>
   * @param mixed $data
   * @method jsonResponse
   * @static method
   */
  public function jsonResponse($data)
  {
    $json = self::json($data);
    header('X-JSON: (' . $json . ')');
    header('Content-type: application/x-json');
    echo $json;
  }
}


function getTemplate()
{
  static $template;
  if($template)
    return $template;

  $template = new EpiTemplate();
  return $template;
}