var succestrades = [];
app.get('/checkTrade/', function (req, res) {
	var tradeid = req.query['tradeid'];
	var offer = currentOffer[tradeid];

	if (offer.process) return res.json({
		type: offer.type,
		what: 'error',
		clear: false,
		message: 'Please slow down.'
	});
	offer.process = true;

	getTrade(tradeid, function(err, response) {
		if (err || !response) {
			offer.process = false;
			return res.json({
				type: offer.type,
				what: 'error',
				clear: false,
				message: 'There was an error while checking the status of the trade.'
			});
		}
		if (response.trade_offer_state == 3) {
			logger.trace('Offer has been accepted in first step: '+ tradeid)
			res.json({
				type: offer.type,
				what: 'success',
				clear: true,
				message: 'Exchange went successful. Changing the balance '+(offer.type == 'withdraw' ? '-'+offer.coins : '+'+offer.coins)+' coins.',
				coins: (offer.type == 'withdraw' ? '-'+offer.coins : offer.coins),
			});
			if (offer.type == 'deposit' && succestrades.indexOf(tradeid) == -1) {
				succestrades.push(tradeid)
				getItems(tradeid, response.tradeid);
				query('UPDATE `users` SET  `balance` = `balance` + '+offer.coins+' WHERE `steamid` = '+offer.steamid);
				logger.fatal('User: '+offer.steamid+' recived '+offer.coins+' coins for tradeid: '+tradeid);
			}
			if (offer.type == 'withdraw') {
				if (!response.items_to_give) {
					res.json({
						type: offer.type,
						what: 'error',
						clear: false,
						message: 'There was an error while checking the status of the trade.'
					});
					offer.process = false;
					return;
				}
				logger.fatal('User '+offer.steamid+' withdrawed items for '+offer.coins+' coins.')
				if (response.items_to_give) {
					logger.error('Items delete from store '+ tradeid)
					var assets = [];
					for (var index in response.items_to_give) {
						var item = response.items_to_give[index];
						assets.push(item.assetid)
					}
					query('DELETE FROM `inventory` WHERE `classid` IN (' + assets + ')');
				} else {
					logger.error('Error on delete items for trade '+ tradeid)
				}
			}
			query('UPDATE `trades` SET `status` = "done" WHERE `tradeid` = '+tradeid);
			delete currentOffer[tradeid];
		} else if (response.trade_offer_state == 2 || response.trade_offer_state == 9) {
			var cancel_time = parseFloat(offer.time) + 60;
			var current_time = parseInt(new Date().getTime() / 1000);
			if (cancel_time < current_time) {
				cancelTrade(tradeid, function(cancel) {
					if (cancel) {
						getTrade(tradeid, function(err, response2) {
							if (response2.trade_offer_state == 3) {
								logger.trace('Offer has been accepted in secoond step: '+ tradeid)
								res.json({
									type: offer.type,
									what: 'success',
									clear: true,
									message: 'Exchange went successful. Changing the balance '+(offer.type == 'withdraw' ? '-'+offer.coins : '+'+offer.coins)+' coins.',
									coins: (offer.type == 'withdraw' ? '-'+offer.coins : offer.coins),
								});
								if (offer.type == 'deposit' && succestrades.indexOf(tradeid) == -1) {
									getItems(tradeid, response2.tradeid);
									query('UPDATE `users` SET  `balance` = `balance` + '+offer.coins+' WHERE `steamid` = '+offer.steamid);
									logger.fatal('User: '+offer.steamid+' recived '+offer.coins+' coins for tradeid: '+tradeid);
								}
								if (offer.type == 'withdraw') {
									if (!response.items_to_give) {
										res.json({
											type: offer.type,
											what: 'error',
											clear: false,
											message: 'There was an error while checking the status of the trade.'
										});
										offer.process = false;
										return;
									}
									logger.fatal('User '+offer.steamid+' withdrawed items for '+offer.coins+' coins.')
									if (response2.items_to_give) {
										logger.error('Items delete from store '+ tradeid)
										var assets = [];
										for (var index in response2.items_to_give) {
											var item = response2.items_to_give[index];
											assets.push(item.assetid)
										}
										query('DELETE FROM `inventory` WHERE `classid` IN (' + assets + ')');
									} else {
										logger.error('Error on delete items for trade '+ tradeid)
									}
								}
								query('UPDATE `trades` SET `status` = "done" WHERE `tradeid` = '+tradeid);
								delete currentOffer[tradeid];
							} else {
								if (offer.type == 'withdraw') {
									if (response.items_to_give) {
										logger.error('Items back to store '+ tradeid)
										var assets = [];
										for(var index in response.items_to_give) {
											var item = response.items_to_give[index];
											assets.push(item.assetid)
										}
										query('UPDATE `inventory` SET `intrade` = "0" WHERE `classid` IN (' + assets + ')');
									} else {
										logger.error('Error on intrade 0 items for trade '+ tradeid)
									}
									query('UPDATE `users` SET  `balance` = `balance` + '+offer.coins+' WHERE `steamid` = '+offer.steamid);
								}
								res.json({
									type: offer.type,
									what: 'error',
									message: 'The trade offer has been rejected.',
									coins: (offer.type == 'withdraw' ? offer.coins : '-'+offer.coins),
									clear: true
								});
								logger.error('Offer has been declined in secoond step: '+ tradeid)
								query('UPDATE `trades` SET `status` = "declined" WHERE `tradeid` = '+tradeid);
								delete currentOffer[tradeid];
							}
						})
					} else {
						res.json({
							type: offer.type,
							what: 'error',
							clear: false,
							message: 'There was an error while checking the status of the trade.'
						});
						offer.process = false;
					}
				})
			} else {
				res.json({
					type: offer.type,
					what: 'warning',
					clear: false,
					message: 'Please accept the tradeoffer and check status again.'
				});
				offer.process = false;
			}
		} else {
			cancelTrade(tradeid, function(cancel) {
				if (cancel) {
					if (offer.type == 'withdraw') {
						if (response.items_to_give) {
							logger.error('Items back to store '+ tradeid)
							var assets = [];
							for(var index in response.items_to_give) {
								var item = response.items_to_give[index];
								assets.push(item.assetid)
							}
							query('UPDATE `inventory` SET `intrade` = "0" WHERE `classid` IN (' + assets + ')');
						} else {
							logger.error('Error on intrade 0 items for trade '+ tradeid)
						}
						query('UPDATE `users` SET  `balance` = `balance` + '+offer.coins+' WHERE `steamid` = '+offer.steamid);
					}
					res.json({
						type: offer.type,
						what: 'error',
						clear: true,
						coins: (offer.type == 'withdraw' ? offer.coins : '-'+offer.coins),
						message: 'The trade offer has been rejected.',
					});
					logger.error('Offer has been declined in first step: '+ tradeid)
					query('UPDATE `trades` SET `status` = "declined" WHERE `tradeid` = '+tradeid);
					delete currentOffer[tradeid];
				} else {
					res.json({
						type: offer.type,
						what: 'error',
						clear: false,
						message: 'There was an error while checking the status of the trade.'
					});
					offer.process = false;
				}
			})
		}
	})
});