/************************************************************************
classroom Module
================
Utility functions for use in a classroom setting. The goal of these
functions is to make it easier for tutors to facilitate ScriptCraft
for use by students.
  
***/

/*************************************************************************
classroom.allowScripting() function
===================================
Allow or disallow anyone who connects to the server (or is already
connected) to use ScriptCraft. This function is preferable to granting 'ops' privileges 
to every student in a Minecraft classroom environment.

Parameters
----------

 * canScript : true or false

Example
-------
To allow all players (and any players who connect to the server) to
use the `js` and `jsp` commands...

    /js classroom.allowScripting(true)

To disallow scripting (and prevent players who join the server from using the commands)...

    /js classroom.allowScripting(false)

Only ops users can run the classroom.allowScripting() function - this is so that students 
don't try to bar themselves and each other from scripting.

***/
var classroom = {
    allowScripting: function(/* boolean: true or false */ canScript){}
};

ready(function(){
    classroom.allowScripting = function(canScript)
    {
        /*
          only operators should be allowed run this function
         */
        if (!self.isOp())
            return;

        if (canScript){
            utils.foreach( server.onlinePlayers, function (player) {
                player.addAttachment(__plugin, "scriptcraft.*", true);
            });
        }else{
            utils.foreach( server.onlinePlayers, function(player) {
                utils.foreach(player.getEffectivePermissions(), function(perm) {
                    if ((""+perm.permission).indexOf("scriptcraft.") == 0){
                        if (perm.attachment)
                            perm.attachment.remove();
                    }
                });
            });
        }
        classroom.canScript = canScript;
    };
    events.on("player.PlayerLoginEvent", function(listener, event) { 
        var player = event.player;
        if (classroom.canScript)
            player.addAttachment(__plugin, "scriptcraft.*", true);
    }, "HIGHEST");
});