<?php
	//autoload classes from modules folder when they're called
	spl_autoload_register(function($class){
		$did = false;
		$file = JACKED_MODULES_ROOT . $class . '.php';
		if (file_exists($file)){
			require($file);
            $did = true;
	    }else{
	        throw new Exception("JACKED can't find a class for the module named " . $class . ".");
	    }
	    return $did;
	}); 

	//THE fucking class
	class JACKED{
	    const moduleName = "JACKED Core";
	    const moduleVersion = 3.0;
	
	    protected static $_instance = null;
	    public $config;
	
		public function __construct($required="", $optional=""){
		    self::$_instance = $this;
		    self::$_instance->config = new Configur("core");
		    //set up debug
		    switch(self::$_instance->config->debug){
        		case 1:
        			ini_set('display_errors', 'On');
        			error_reporting(E_ALL ^ E_NOTICE);
        			break;
        		case 2:
        			ini_set('display_errors', 'On');
        			error_reporting(-1);
        			break;
        		case -1:
                    ini_set('display_errors', 'On');
                    error_reporting(E_ALL ^ E_NOTICE);
                    break;
                case -2:
                    ini_set('display_errors', 'On');
                    error_reporting(-1);
                    break;
        
        		default:
        			ini_set('display_errors', 'Off');
        			ini_set('log_errors', 'On');
        			error_reporting(E_ALL ^ E_NOTICE);
        			break;
        	}
        	
        	self::$_instance->loadDependencies($required);
        	self::$_instance->loadOptionalDependencies($optional);
		}
	
		public static function getInstance($required = "", $optional = ""){
		    if (self::$_instance === null) {
		        self::$_instance = new JACKED();
		    }

        	self::$_instance->loadDependencies($required);
        	self::$_instance->loadOptionalDependencies($optional);
        	
	        return self::$_instance;
		}
		
		private function isModuleRegistered($name){
			return property_exists(self::$_instance, $name) && self::$_instance->$name->getEnabled();
		}
		
		private function registerModule($name){
		    if($name && !self::$_instance->isModuleRegistered($name))
			    self::$_instance->$name = new $name(self::$_instance);
		}
	
	    public function loadDependencies($deps){
	        foreach(explode(", ", $deps) as $module){
	            if(!self::$_instance->isModuleRegistered($module)){
        			try{
        			    self::$_instance->registerModule($module);
        			}catch(Exception $e){
        			    self::$_instance->debug_dump('<br />required module <strong>' . $module . '</strong> not found.<br />');
        			}
        		}
    		}
	    }
	    
	    public function loadOptionalDependencies($mods){
    		foreach(explode(", ", $mods) as $module){
    		    if(!self::$_instance->isModuleRegistered($module)){
        			try{
        			    self::$_instance->registerModule($module);
        			}catch(Exception $e){
        			    self::$_instance->$module = new Derper();
        			    self::$_instance->debug_dump('Couldn\'t find optional module: ' . $module . '.');
        			}
        		}
    		}
	    }
	    
		public function __destruct(){
		    //unload?
		}
		
		//util
		
		//generateHash(string, string) -> string
    	//found on the PHP Security Consortium page:
    	////http://phpsec.org/articles/2005/password-hashing.html
    	//takes a string and an optional second argument,
    	////if $salt is not provided, the function will add an extra string of random
    	////characters to the plaintext and return the SHA1 hash of the entire string,
    	////and the original salt will be appended to the beginning of the hash.
    	////if $salt is provided, see documentation
    	public function generateHash($plainText, $salt = NULL){
    		if ($salt === NULL){
    			$salt = substr(md5(uniqid(rand(), true)), 0, self::$_instance->config->salt_length);
    		}else{
    			$salt = substr($salt, 0, self::$_instance->config->salt_length);
    		}
    		return $salt . sha1($salt . $plainText);
    	}
    	
    	////////////////////////////////////////////
    	//    motherfuckin debuggery
    	////////////////////////////////////////////
    	
    	//MAKE THE PRINTS
    	private function print_repr($title, $var){
    	    echo '<br /><font color="red">' . $title . ':</font><br /><pre><code>';
    	    echo var_export($var, true);
            echo '</code></pre><br />';
    	}
    	
    	//not yet
    	private function log_repr($title, $var){
    	    //lol
    	}
    	
    	//dumps a given var, if conf->debug is not turned off
    	public function debug_dump($var){
    		if(self::$_instance->config->debug > 0){
    			self::print_repr('DEBUG DUMP', $var);
    		}
    	}
    	
    	//prints a backtrace
    	public function backtrace(){
    		if(self::$_instance->config->debug > 0){
                self::print_repr('DEBUG BACKTRACE', debug_backtrace());
            }
    	}
    	
    	
    	//harp darp
    	public function derp(){
    	    return self::$_instance->config->lol;
    	}
	}
?>