How to limit buy badge per game?

[orcnaydn]

I want to someone type my bot !selltf, his sell max 15 sets per game how can i do that?

My Code;

 

Inventory.prototype.getCustomerSets = function(ignore, sid64, callback, permit){
	let self=this;
	this.community.getUserInventoryContents(sid64, 753, 6, true, (err, items) => {
			if(err){
				callback(err); 
			}
			else {
				
				items = items.filter(item => {
					if(item.getTag("item_class").internal_name == "item_class_2" && item.getTag("cardborder").internal_name == "cardborder_0"){ 
						return item;
					}
				});
				
				let customer_sets=[],
					customer_cards={};
				
				items.forEach( card => {
					const appid=card.market_hash_name.split("-")[0];
					if(!customer_cards[appid]){customer_cards[appid]={};}
					if(!customer_cards[appid][card.market_hash_name]){customer_cards[appid][card.market_hash_name]=[];}
					customer_cards[appid][card.market_hash_name].push(card);
				});

				for(let appid in customer_cards){
					if(self.card_db[appid]){
						if(Object.keys(customer_cards[appid]).length == self.card_db[appid]){
							
							let customerHave = Math.min.apply( Math, values(customer_cards[appid]).map( card => card.length ) ),
								botHave = self.AvailableSets[appid] ? self.AvailableSets[appid].length : 0,
								limit = permit ? (self.maxStock+permit) : self.maxStock,
								falt = limit-botHave;
							
							customerHave = !ignore ? ( (falt > 0) ? ( Math.min( ...[ falt, customerHave ]  ) ) : 0 ) : customerHave;
							
							for (let i=0;i<customerHave;i++) {
								let currentCustomerSet=[]
								for(let card in customer_cards[appid]){
									currentCustomerSet.push(customer_cards[appid][card][i]);
								}
								customer_sets.push(currentCustomerSet);
							}
						}
					} else {
						self.getAppIdCount(appid);
					}					
				}
				callback(null, customer_sets);
			}
		});
}