<?php

Class Application {

    // Hold an instance of the class
    private static $instances;

    // Active page object
    private static $page;

    // Active section object
    private static $section;

    // Active action object
    private static $action;

    // Active Session object
    private static $session;

    // Data storage object
    private static $data;

    // Instance counter
    private static $called;

    // The singleton method
    final public static function instance() {

        $c = get_called_class();

        if( ! isset( self::$instances[$c] ) ) {

            self::$instances[$c] = new $c;

        }

        if( ! isset ( self::$instances[$c]->called ) ){

            self::$instances[$c]->called = 1;

        } else {

            self::$instances[$c]->called++;

        }

        if( ! isset( self::$instances[$c]->storage ) ) {

            self::$instances[$c]->storage = array();

        }

        return self::$instances[$c];

    }

    // A private constructor; prevents direct creation of object
    final private function __construct() {}

    // Prevent users to clone the instance
    final private function __clone() {}

    final public function __get($variable=FALSE) {

        if( !$variable == FALSE ){

            if( isset( self::$$variable ) ) {

                return self::$$variable;

            }

        }

        return false;

    }

    final public function __set($variable=FALSE,$data=FALSE) {

        if( !$variable == FALSE ){

            if( isset( self::$$variable ) ) {

                if( is_array( self::$$variable ) && !$data == FALSE ) {

                    return array_push( self::$$variable , $data );

                } elseif( is_string( self::$$variable ) && !$data == FALSE  ) {

                    return self::$$variable = $data;

                }

            }

        }

        return false;

    }

    final public function Initialize() {

        self::ParseUrl();

    }

    // Alias for self::Initialize()
    final public function init() {

        self::Initialize();

    }

    // Requested Page, Action or Module
    final protected function ParseUrl() {

        $query_string = $_SERVER['REQUEST_URI'];


        if( substr( $query_string , 0 , 1 ) == '/' ) {

            $query_string = substr( $query_string , 1 );

        }

        if( substr( $query_string , -1 ) == '/' ) {

            $query_string = substr( $query_string , 0 , -1 );

        }


        if( strlen( $query_string ) > 0 ) {

            self::$section = explode("/", str_replace("options=","",$query_string) );

            foreach( self::$section as $key => $value ) {

                self::$section[$key] = strtolower( $value );

            }

        } else {

            self::$section[] = 'home';

        }


        if( preg_match( "/index(\d*)\.html/" , self::$section[ count( self::$section ) -1 ] , $matches ) ) {

            $matches[1] = intval( $matches[1] );

            var_dump( $matches );
            var_dump( is_int( $matches[1] ) );

            echo "<hr>\r\n";

            if( is_int( $matches[1] ) ) {

                if( $matches[1] == 0 | $matches[1] == 1 ) {

                    self::$section[ count( self::$section ) -1 ] = 'index.html';

                } else {

                    self::$section[ count( self::$section ) -1 ] = $matches[1];

                }

            }

            unset( $matches );

        }


        if( isset( self::$section ) ) {

            return self::$section;

        }

        return false;

    }

}