joke command

	joke: function(arg, by, room){
		arg = arg.replace(/, /g, ',').split(',');
		var catagories = ['math', 'politics', 'academics', 'science']
		switch(toId(arg[0])){
			case 'add':
				if(!this.hasRank(by, '+%@&#~')) return false;
				if(!arg[1] || !arg[2]) return this.say(room, 'The correct format is +joke add, category, joke');
				if(catagories.indexOf(toId(arg[1])) === -1){
					return this.say(room, 'Invalid Joke Category');
				}
				var jokeData = fs.readFileSync('data/jokes.txt').toString().split('\n');
				if(jokeData.indexOf(toId(arg[1]) + '|' + arg.slice(2).join(', ')) > -1) return this.say(room, 'The joke exists already');
				fs.appendFile('data/jokes.txt', '\n' + toId(arg[1]) + '|' + arg.slice(2).join(', '))
				return this.say(room, 'Added!')
				break;
			default:
				if(!this.hasRank(by, '+%@#&~')) return false;
				if(catagories.indexOf(toId(arg[0])) > -1){
					var search = toId(arg[0]);
				} else {
					var search = 'all';
				}
				var jokeData = fs.readFileSync('data/jokes.txt').toString().split('\n');
				var data = []
				var success = false;
				for (var i = 0; jokeData.length > i; i++){
					if(!jokeData[i]){
						continue;
					}
					var spl = jokeData[i].split('|');
					if(spl[0] === search || search === 'all'){
						data[data.length] = spl.slice(1).join('|');
						success = true;
					}
				}
				if(!success) return this.say(room, 'No jokes found ;-;');
				this.say(room, data[~~(data.length*Math.random())]);

		}
	},