<?php
/**
 * CodeIgniter
 *
 * An open source application development framework for PHP
 *
 * This content is released under the MIT License (MIT)
 *
 * Copyright (c) 2014 - 2015, British Columbia Institute of Technology
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 * @package	CodeIgniter
 * @author	EllisLab Dev Team
 * @copyright	Copyright (c) 2008 - 2014, EllisLab, Inc. (http://ellislab.com/)
 * @copyright	Copyright (c) 2014 - 2015, British Columbia Institute of Technology (http://bcit.ca/)
 * @license	http://opensource.org/licenses/MIT	MIT License
 * @link	http://codeigniter.com
 * @since	Version 1.0.0
 * @filesource
 */

/*
 *---------------------------------------------------------------
 * APPLICATION ENVIRONMENT
 *---------------------------------------------------------------
 *
 * You can load different configurations depending on your
 * current environment. Setting the environment also influences
 * things like logging and error reporting.
 *
 * This can be set to anything, but default usage is:
 *
 *     development
 *     testing
 *     production
 *
 * NOTE: If you change these, also change the error_reporting() code below
 */
	define('ENVIRONMENT', isset($_SERVER['CI_ENV']) ? $_SERVER['CI_ENV'] : 'development');
/*
 *---------------------------------------------------------------
 * ERROR REPORTING
 *---------------------------------------------------------------
 *
 * Different environments will require different levels of error reporting.
 * By default development will show errors but testing and live will hide them.
 */
switch (ENVIRONMENT)
{
	case 'development':
		error_reporting(-1);
		ini_set('display_errors', 1);
	break;

	case 'testing':
	case 'production':
		ini_set('display_errors', 0);
		if (version_compare(PHP_VERSION, '5.3', '>='))
		{
			error_reporting(E_ALL & ~E_NOTICE & ~E_DEPRECATED & ~E_STRICT & ~E_USER_NOTICE & ~E_USER_DEPRECATED);
		}
		else
		{
			error_reporting(E_ALL & ~E_NOTICE & ~E_STRICT & ~E_USER_NOTICE);
		}
	break;

	default:
		header('HTTP/1.1 503 Service Unavailable.', TRUE, 503);
		echo 'The application environment is not set correctly.';
		exit(1); // EXIT_ERROR
}

/*
 *---------------------------------------------------------------
 * SYSTEM FOLDER NAME
 *---------------------------------------------------------------
 *
 * This variable must contain the name of your "system" folder.
 * Include the path if the folder is not in the same directory
 * as this file.
 */
	$system_path = dirname(__FILE__).'/vendor/codeigniter/framework/system';

/*
 *---------------------------------------------------------------
 * APPLICATION FOLDER NAME
 *---------------------------------------------------------------
 *
 * If you want this front controller to use a different "application"
 * folder than the default one you can set its name here. The folder
 * can also be renamed or relocated anywhere on your server. If
 * you do, use a full server path. For more info please see the user guide:
 * http://codeigniter.com/user_guide/general/managing_apps.html
 *
 * NO TRAILING SLASH!
 */
	$application_folder = dirname(__FILE__).'/application';

/*
 *---------------------------------------------------------------
 * VIEW FOLDER NAME
 *---------------------------------------------------------------
 *
 * If you want to move the view folder out of the application
 * folder set the path to the folder here. The folder can be renamed
 * and relocated anywhere on your server. If blank, it will default
 * to the standard location inside your application folder. If you
 * do move this, use the full server path to this folder.
 *
 * NO TRAILING SLASH!
 */
	$view_folder = '';


/*
 * --------------------------------------------------------------------
 * DEFAULT CONTROLLER
 * --------------------------------------------------------------------
 *
 * Normally you will set your default controller in the routes.php file.
 * You can, however, force a custom routing by hard-coding a
 * specific controller class/function here. For most applications, you
 * WILL NOT set your routing here, but it's an option for those
 * special instances where you might want to override the standard
 * routing in a specific front controller that shares a common CI installation.
 *
 * IMPORTANT: If you set the routing here, NO OTHER controller will be
 * callable. In essence, this preference limits your application to ONE
 * specific controller. Leave the function name blank if you need
 * to call functions dynamically via the URI.
 *
 * Un-comment the $routing array below to use this feature
 */
	// The directory name, relative to the "controllers" folder.  Leave blank
	// if your controller is not in a sub-folder within the "controllers" folder
	// $routing['directory'] = '';

	// The controller class file name.  Example:  mycontroller
	// $routing['controller'] = '';

	// The controller function you wish to be called.
	// $routing['function']	= '';


/*
 * -------------------------------------------------------------------
 *  CUSTOM CONFIG VALUES
 * -------------------------------------------------------------------
 *
 * The $assign_to_config array below will be passed dynamically to the
 * config class when initialized. This allows you to set custom config
 * items or override any default config values found in the config.php file.
 * This can be handy as it permits you to share one application between
 * multiple front controller files, with each file containing different
 * config values.
 *
 * Un-comment the $assign_to_config array below to use this feature
 */
	// $assign_to_config['name_of_config_item'] = 'value of config item';


// --------------------------------------------------------------------
// END OF USER CONFIGURABLE SETTINGS.  DO NOT EDIT BELOW THIS LINE
// --------------------------------------------------------------------

/*
 * ---------------------------------------------------------------
 *  Resolve the system path for increased reliability
 * ---------------------------------------------------------------
 */

	// Set the current directory correctly for CLI requests
	if (defined('STDIN'))
	{
		chdir(dirname(__FILE__));
	}

	if (($_temp = realpath($system_path)) !== FALSE)
	{
		$system_path = $_temp.'/';
	}
	else
	{
		// Ensure there's a trailing slash
		$system_path = rtrim($system_path, '/').'/';
	}

	// Is the system path correct?
	if ( ! is_dir($system_path))
	{
		header('HTTP/1.1 503 Service Unavailable.', TRUE, 503);
		echo 'Your system folder path does not appear to be set correctly. Please open the following file and correct this: '.pathinfo(__FILE__, PATHINFO_BASENAME);
		exit(3); // EXIT_CONFIG
	}

/*
 * -------------------------------------------------------------------
 *  Now that we know the path, set the main path constants
 * -------------------------------------------------------------------
 */
	// The name of THIS file
	define('SELF', pathinfo(__FILE__, PATHINFO_BASENAME));

	// Path to the system folder
	define('BASEPATH', str_replace('\\', '/', $system_path));

	// Path to the front controller (this file)
	define('FCPATH', dirname(__FILE__).'/');

	// Name of the "system folder"
	define('SYSDIR', trim(strrchr(trim(BASEPATH, '/'), '/'), '/'));

	// The path to the "application" folder
	if (is_dir($application_folder))
	{
		if (($_temp = realpath($application_folder)) !== FALSE)
		{
			$application_folder = $_temp;
		}

		define('APPPATH', $application_folder.DIRECTORY_SEPARATOR);
	}
	else
	{
		if ( ! is_dir(BASEPATH.$application_folder.DIRECTORY_SEPARATOR))
		{
			header('HTTP/1.1 503 Service Unavailable.', TRUE, 503);
			echo 'Your application folder path does not appear to be set correctly. Please open the following file and correct this: '.SELF;
			exit(3); // EXIT_CONFIG
		}

		define('APPPATH', BASEPATH.$application_folder.DIRECTORY_SEPARATOR);
	}

	// The path to the "views" folder
	if ( ! is_dir($view_folder))
	{
		if ( ! empty($view_folder) && is_dir(APPPATH.$view_folder.DIRECTORY_SEPARATOR))
		{
			$view_folder = APPPATH.$view_folder;
		}
		elseif ( ! is_dir(APPPATH.'views'.DIRECTORY_SEPARATOR))
		{
			header('HTTP/1.1 503 Service Unavailable.', TRUE, 503);
			echo 'Your view folder path does not appear to be set correctly. Please open the following file and correct this: '.SELF;
			exit(3); // EXIT_CONFIG
		}
		else
		{
			$view_folder = APPPATH.'views';
		}
	}

	if (($_temp = realpath($view_folder)) !== FALSE)
	{
		$view_folder = $_temp.DIRECTORY_SEPARATOR;
	}
	else
	{
		$view_folder = rtrim($view_folder, '/\\').DIRECTORY_SEPARATOR;
	}

	define('VIEWPATH', $view_folder);

/*
 * --------------------------------------------------------------------
 * LOAD THE BOOTSTRAP FILE
 * --------------------------------------------------------------------
 *
 * And away we go...
 */
include_once 'vendor/autoload.php';
//require_once BASEPATH.'core/CodeIgniter.php';

// Now the Hack starts
/*
 * ------------------------------------------------------
 *  Load the framework constants
 * ------------------------------------------------------
 */
	if (file_exists(APPPATH.'config/'.ENVIRONMENT.'/constants.php'))
	{
		require_once(APPPATH.'config/'.ENVIRONMENT.'/constants.php');
	}
	require_once(APPPATH.'config/constants.php');

// ToDo: Check if Security procedure is needed
// ToDo: Check if custom error handler is needed

/*
 * ------------------------------------------------------
 *  Set the subclass_prefix
 * ------------------------------------------------------
 *
 */
	if ( ! empty($assign_to_config['subclass_prefix']))
	{
		get_config(array('subclass_prefix' => $assign_to_config['subclass_prefix']));
	}

require_once(dirname(__FILE__).'/vendor/codeigniter/framework/system/core/Common.php');
require_once(dirname(__FILE__).'/vendor/codeigniter/framework/system/core/Controller.php');
/*
 * ------------------------------------------------------
 *  Instantiate the config class
 * ------------------------------------------------------
 *
 * Note: It is important that Config is loaded first as
 * most other classes depend on it either directly or by
 * depending on another class that uses it.
 *
 */
$CFG =& load_class('Config', 'core');

// Do we have any manually set config items in the index.php file?
if (isset($assign_to_config) && is_array($assign_to_config))
{
	foreach ($assign_to_config as $key => $value)
	{
		$CFG->set_item($key, $value);
	}
}

/*
 * ------------------------------------------------------
 *  Load the Language class
 * ------------------------------------------------------
 */
$LANG =& load_class('Lang', 'core');

define('FHC_INTEGER',1);
define('FHC_STRING',2);
define('FHC_BOOLEAN',3);
define('FHC_LANG_ARRAY',4);

function &get_instance()
{
	return CI_Controller::get_instance();
}
/*require_once(dirname(__FILE__).'/vendor/codeigniter/framework/system/core/CodeIgniter.php');
*/
require_once(dirname(__FILE__).'/vendor/codeigniter/framework/system/database/DB.php');
//require_once(dirname(__FILE__).'/vendor/codeigniter/framework/system/core/Common.php');
require_once(dirname(__FILE__).'/vendor/codeigniter/framework/system/core/Loader.php');
$loader=new CI_Loader();
require_once(dirname(__FILE__).'/application/core/FHC_Controller.php');
$controller=new CI_Controller();
require_once(dirname(__FILE__).'/vendor/codeigniter/framework/system/core/Model.php');
require_once(dirname(__FILE__).'/application/core/FHC_Model.php');
$model=new CI_Model();

// Traits
trait db_extra
{
	protected $db_result=null;

	public function db_query($sql)
	{
		if ($this->db_result=$this->db->simple_query($sql))
			return $this->db_result;
		else
		{
			$this->errormsg.='Abfrage in Datenbank fehlgeschlagen! '.$this->db_last_error();
			return false;
		}
	}

	public function db_fetch_object($result = null, $i=null)
	{
		if(is_null($result))
		{
			if(is_null($i))
				return pg_fetch_object($this->db_result);
			else 
				return pg_fetch_object($this->db_result, $i);
		}
		else 
		{
			if(is_null($i))
				return pg_fetch_object($result);
			else 
				return pg_fetch_object($result, $i);
		}			
	}

	public function db_add_param($var, $type=FHC_STRING, $nullable=true)
	{
		if($var==='' && $type!=FHC_BOOLEAN)
		{
			if($nullable)
				return 'null';
			else
				return "''";
		}

		switch($type)
		{
			case FHC_INTEGER: 
				$var = $this->db_escape($var);
				if(!is_numeric($var) && $var!=='')
					die('Invalid Integer Parameter detected:'.$var);
				$var = $this->db_null_value($var, false);
				break;

			case FHC_BOOLEAN:
				if($var===true)
					$var='true';
				elseif($var===false)
					$var='false';
				elseif($var=='' && $nullable)
					$var = 'null';
				else
					die('Invalid Boolean Parameter detected');
				break;

			case FHC_STRING:
			default: 
				$var = $this->db_escape($var);
				$var = $this->db_null_value($var);
				break;
		}
		return $var;		
	}
	
	public function db_escape($var)
	{
		return pg_escape_string($var);
	}

	public function db_null_value($var, $qoute=true)
	{
		if($qoute)
			return ($var!==''?$this->db_qoute($var):'null');
		else
			return ($var!==''?$var:'null');	
	}
	
	public function db_qoute($var)
	{
		return "'".$var."'";
	}
	
	public function db_parse_bool($var)
	{
		if($var=='t')
			return true;
		elseif($var=='f')
			return false;
		elseif($var=='')
			return '';
		else
			die('Invalid DB Boolean. Wrong DB-Engine?');
	}
	
	/**
	 * Bereitet ein Array von Elementen auf, damit es in der IN-Klausel eines
	 * Select Befehls verwendet werden kann.
	 */
	public function db_implode4SQL($array)
	{
		$string = '';
		foreach($array as $row)
		{
			if($string!='')
				$string.=',';
			$string.=$this->db_add_param($row);
		}
		return $string;
	}
}