<?php defined('BASEPATH') OR exit('No direct script access allowed');

require APPPATH."libraries/MX/Controller.php";

/**
 * Code here is run before ALL controllers
 * 
 * @package 	PyroCMS\Core\Controllers
 * @author      PyroCMS Dev Team
 * @copyright   Copyright (c) 2012, PyroCMS LLC
 */
class MY_Controller extends MX_Controller
{

	/**
	 * The name of the module that this controller instance actually belongs to.
	 *
	 * @var string 
	 */
	public $module;

	/**
	 * The name of the controller class for the current class instance.
	 *
	 * @var string
	 */
	public $controller;

	/**
	 * The name of the method for the current request.
	 *
	 * @var string 
	 */
	public $method;

	/**
	 * Load and set data for some common used libraries.
	 */
	public function __construct()
	{
		parent::__construct();

		$this->benchmark->mark('my_controller_start');
		
		// No record? Probably DNS'ed but not added to multisite
		if ( ! defined('SITE_REF'))
		{
			show_error('This domain is not set up correctly. Please go to '.anchor('sites') .' and log in to add this site.');
		}

		// By changing the prefix we are essentially "namespacing" each site
		$this->db->set_dbprefix(SITE_REF.'_');

		// Load the cache library now that we know the siteref
		$this->load->library('pyrocache');

		// Add the site specific theme folder
		$this->template->add_theme_location(ADDONPATH.'themes/');

		// Migration logic helps to make sure PyroCMS is running the latest changes
		$this->load->library('migration');
		
		if ( ! ($schema_version = $this->migration->current()))
		{
			show_error($this->migration->error_string());
		}

		// Result of schema version migration
		elseif (is_numeric($schema_version))
		{
			log_message('debug', 'PyroCMS was migrated to version: ' . $schema_version);
		}

		// With that done, load settings
		$this->load->library(array('session', 'settings/settings'));

		// Lock front-end language
		if ( ! (is_a($this, 'Admin_Controller') and ($site_lang = AUTO_LANGUAGE)))
		{
			$site_public_lang = explode(',', Settings::get('site_public_lang'));

			if (in_array(AUTO_LANGUAGE, $site_public_lang))
			{
				$site_lang = AUTO_LANGUAGE;
			}
			else
			{
				$site_lang = Settings::get('site_lang');
			}
		}

		// We can't have a blank language. If there happens
		// to be a blank language, let's default to English.
		if ( ! $site_lang) {
			$site_lang = 'en';
		}

		// What language us being used
		defined('CURRENT_LANGUAGE') or define('CURRENT_LANGUAGE', $site_lang);

		$langs = $this->config->item('supported_languages');

		$pyro['lang'] = $langs[CURRENT_LANGUAGE];
		$pyro['lang']['code'] = CURRENT_LANGUAGE;

		$this->load->vars($pyro);

		// Set php locale time
		if (isset($langs[CURRENT_LANGUAGE]['codes']) and sizeof($locale = (array) $langs[CURRENT_LANGUAGE]['codes']) > 1)
		{
			array_unshift($locale, LC_TIME);
			call_user_func_array('setlocale', $locale);
			unset($locale);
		}

		// Reload languages
		if (AUTO_LANGUAGE !== CURRENT_LANGUAGE)
		{
			$this->config->set_item('language', $langs[CURRENT_LANGUAGE]['folder']);
			$this->lang->is_loaded = array();
			$this->lang->load(array('errors', 'global', 'users/user', 'settings/settings', 'files/files'));
		}
		else
		{
			$this->lang->load(array('global', 'users/user', 'files/files'));
		}

		$this->load->library('users/ion_auth');

		// Use this to define hooks with a nicer syntax
		ci()->hooks =& $GLOBALS['EXT'];

		// Get user data
		$this->template->current_user = ci()->current_user = $this->current_user = $this->ion_auth->get_user();

		// Work out module, controller and method and make them accessable throught the CI instance
		ci()->module = $this->module = $this->router->fetch_module();
		ci()->controller = $this->controller = $this->router->fetch_class();
		ci()->method = $this->method = $this->router->fetch_method();

		// Loaded after $this->current_user is set so that data can be used everywhere
		$this->load->model(array(
			'permissions/permission_m',
			'addons/module_m',
			'addons/theme_m',
			'pages/page_m',
		));

		// List available module permissions for this user
		ci()->permissions = $this->permissions = $this->current_user ? $this->permission_m->get_group($this->current_user->group_id) : array();

		// load all modules (the Events library uses them all) and make their details widely available
		ci()->enabled_modules = $this->module_m->get_all();

		// now that we have a list of enabled modules
		$this->load->library('events');

		// set defaults
		$this->template->module_details = ci()->module_details = $this->module_details = false;

		// now pick our current module out of the enabled modules array
		foreach (ci()->enabled_modules as $module)
		{
			if ($module['slug'] === $this->module)
			{
				// Set meta data for the module to be accessible system wide
				$this->template->module_details = ci()->module_details = $this->module_details = $module;

				continue;
			}
		}

		// certain places (such as the Dashboard) we aren't running a module, provide defaults
		if ( ! $this->module)
		{
			$this->module_details = array(
				'name' => null,
				'slug' => null,
				'version' => null,
				'description' => null,
				'skip_xss' => null,
				'is_frontend' => null,
				'is_backend' => null,
				'menu' => false,
				'enabled' => 1,
				'sections' => array(),
				'shortcuts' => array(),
				'is_core' => null,
				'is_current' => null,
				'current_version' => null,
				'updated_on' => null
			);
		}

		// If the module is disabled, then show a 404.
		empty($this->module_details['enabled']) AND show_404();

		if ( ! $this->module_details['skip_xss'])
		{
			$_POST = $this->security->xss_clean($_POST);
		}

		if ($this->module and isset($this->module_details['path']))
		{
			Asset::add_path('module', $this->module_details['path'].'/');
		}

		$this->load->vars($pyro);
		
		$this->benchmark->mark('my_controller_end');
		
		// Enable profiler on local box
	    if ((isset($this->current_user->group) and $this->current_user->group === 'admin') and is_array($_GET) and array_key_exists('_debug', $_GET))
	    {
			unset($_GET['_debug']);
	    	$this->output->enable_profiler(true);
	    }
	}
}

/**
 * Returns the CodeIgniter object.
 *
 * Example: ci()->db->get('table');
 *
 * @return \CI_Controller
 */
function ci()
{
	return get_instance();
}