Vn.Tpv = new Class
({
	initialize: function (conn, hash)
	{
		this.conn = conn;
		this.hash = hash;
	
		var tpvStatus = this.hash.get ('tpv_status');

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

	,pay: function (amount, company)
	{	
		if (amount > 0)
		{
			var query = 'CALL transaction_start (#company, #amount)';

			var batch = new Sql.Batch ();
			batch.addValue ('company', company);
			batch.addValue ('amount', parseInt (amount * 100));
			
			this.conn.execQuery (query,
				this.onTransactionStart.bind (this), batch);
		}
		else if (!isNaN (amount))
			(new Htk.Toast ()).showError (_('AmountError'));
	}

	,onTransactionStart: function (resultSet)
	{
		var res = resultSet.fetchResult ();

		if (res && res.next ())
		{
			var form = document.createElement ('form');
			form.method = 'post';
			form.action = res.get ('url');
			document.body.appendChild (form);
			
			var fieldsMap =
			{
				 'Ds_Merchant_Amount': 'amount'
				,'Ds_Merchant_Order': 'ds_order'
				,'Ds_Merchant_MerchantCode': 'id'
				,'Ds_Merchant_Currency': 'currency'
				,'Ds_Merchant_TransactionType': 'transaction_type'
				,'Ds_Merchant_Terminal': 'terminal'
				,'Ds_Merchant_MerchantURL': 'merchant_url'
				,'Ds_Merchant_MerchantSignature': 'signature'
				,'Ds_Merchant_UrlOK': null
				,'Ds_Merchant_UrlKO': null
			};

			for (var field in fieldsMap)
			{
				var input = document.createElement ('input');
				input.type = 'hidden';
				input.name = field;
				form.appendChild (input);
				
				if (fieldsMap[field])			
					input.value = res.get (fieldsMap[field]);
			}

			var transactionId = res.get ('ds_order');
			form['Ds_Merchant_UrlOK'].value = this.makeUrl ('ok', transactionId);
			form['Ds_Merchant_UrlKO'].value = this.makeUrl ('ko', transactionId);
			
			form.submit ();
		}
		else
			alert (_('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 += this.hash.make ({
			'tpv_status': status,
			'tpv_order': order
		}, true);

		return path;
	}
});