Vn.Tpv =
{
	check: function (conn)
	{
		var tpvStatus = Vn.Hash.get ('tpv_status');

		if (tpvStatus)
		{
			var batch = new Sql.Batch ();
			batch.addValue ('transaction', Vn.Hash.get ('tpv_order'));
			batch.addValue ('status', tpvStatus);
		
			var query = 'CALL transaction_end (#transaction, #status)';
		
			conn.execQuery (query, null, batch);
		}
	}

	,pay: function (conn, amount, company)
	{	
		if (amount > 0)
		{
			var request = new Vn.HttpRequest ();
			request.add
			({
				 'action': 'tpv'
				,'amount': parseInt (amount * 100)
				,'urlOk': this._makeUrl ('ok')
				,'urlKo': this._makeUrl ('ko')
				,'company': company
			});
		
			request.send ('rest.php',
				this._onTransactionStart.bind (this, request));
		}
		else if (!isNaN (amount))
			Htk.Toast.showError (_('AmountError'));
	}

	,_onTransactionStart: function (request, success)
	{
		var data = null;
		var error = null;
	
		if (success)
		try {
			var json = request.getJson ();
			var data = json.data;
			
			if (json.error)
				error = new Vn.Error (
					json.error.domain,
					json.error.code,
					json.error.message);
		}
		catch (e)
		{
			error = e;
		}

		if (success && data)
		{
			var form = document.createElement ('form');
			form.method = 'post';
			form.action = data.url;
			document.body.appendChild (form);
			
			var fieldsMap =
			{
				 'Ds_SignatureVersion': 'HMAC_SHA256_V1'
				,'Ds_MerchantParameters': data.params
				,'Ds_Signature': data.signature
			};

			for (var field in fieldsMap)
			{
				var input = document.createElement ('input');
				input.type = 'hidden';
				input.name = field;
				form.appendChild (input);
				
				if (fieldsMap[field])			
					input.value = fieldsMap[field];
			}
			
			form.submit ();
		}
		else
			Htk.Toast.showWarning (_('PayError'));
	}

	,_makeUrl: function (status, order)
	{
		var path = location.protocol +'//'+ location.host;
		path += location.port ? ':'+ location.port : '';
		path += location.pathname;
		path += location.search ? location.search : '';
		path += Vn.Hash.make ({
			'form': 'ecomerce/orders',
			'tpv_status': status,
			'tpv_order': '%s'
		}, true);

		return path;
	}
};

Vn.BasketChecker = 
{
	check: function (conn, callback)
	{
		conn.execQuery ('CALL basket_check ()',
			this._onBasketCheck.bind (this, callback));
	}
	
	,_onBasketCheck: function (callback, resultSet)
	{
		var status = resultSet.fetchValue ();
		
		if (!status)
			return;

		var isOk = status == 'UPDATED' || status == 'OK';

		if (status == 'UPDATED')
			Htk.Toast.showWarning (_('OrderItemsUpdated'));
		if (callback)
			callback (isOk);
		if (!isOk)
			Vn.Hash.set ({'form': 'ecomerce/checkout'});
	}
};