/**
 * Core plugin script loaded into the plugin process/thread.
 * 
 * Initializes the plugin-site API global methods.
 */

(function(){
     
    // localize
    var site = new JailedSite(connection);
    delete JailedSite;
    delete connection;
     
    site.onGetInterface(function(){
        launchConnected();
    });
     
    site.onRemoteUpdate(function(){
        application.remote = site.getRemote();
    });
     
     

    /**
     * Simplified clone of Whenable instance (the object can not be
     * placed into a shared script, because the main library needs it
     * before the additional scripts may load)
     */
    var connected = false;
    var connectedHandlers = [];
     
    var launchConnected = function() {
        if (!connected) {
            connected = true;

            var handler;
            while(handler = connectedHandlers.pop()) {
                handler();
            }
        }
    }
     
    var checkHandler = function(handler){
        var type = typeof handler;
        if (type != 'function') {
            var msg =
                'A function may only be subsribed to the event, '
                + type
                + ' was provided instead'
            throw new Error(msg);
        }

        return handler;
    }
    
     
    /**
     * Sets a function executed after the connection to the
     * application is estaplished, and the initial interface-exchange
     * messaging is completed
     * 
     * @param {Function} handler to be called upon initialization
     */
    application.whenConnected = function(handler) {
        handler = checkHandler(handler);
        if (connected) {
            handler();
        } else {
            connectedHandlers.push(handler);
        }
    }


    /**
     * Sets the plugin interface available to the application
     * 
     * @param {Object} _interface to set
     */
    application.setInterface = function(_interface) {
        site.setInterface(_interface);
    }

 
 
    /**
     * Disconnects the plugin from the application (sending
     * notification message) and destroys itself
     */
    application.disconnect = function(_interface) {
        site.disconnect();
    }

})();