DROP procedure IF EXISTS `vn`.`clientPackagingOverstock`;

DELIMITER $$
CREATE DEFINER=`root`@`%` PROCEDURE `vn`.`clientPackagingOverstock`(vClientFk INT, vGraceDays INT )
BEGIN
	DROP TEMPORARY TABLE IF EXISTS tmp.clientPackagingOverstock;
    CREATE TEMPORARY TABLE tmp.clientPackagingOverstock
		ENGINE = MEMORY 
	SELECT itemFk, 
			sum(GotfromClient) - sum(SenttoClient) as devueltos, 
            sum(InvoicedtoClient) - sum(InvoicedfromClient) as facturados,
            LEAST(	
					sum(GotfromClient) - sum(SenttoClient), 
					sum(InvoicedtoClient) - sum(InvoicedfromClient)
				) as abonables
		FROM
	(
		SELECT t.*,
			IF(@month = month, 0, 1) monthEnd,
			@month := month
			FROM      
				(
				SELECT  x.id as ticketFk, 
						date(x.shipped) as shipped, 
						x.itemFk, 
						IFNULL(cast(sum(x.InvoicedtoClient) as DECIMAL(10,0)),0) InvoicedtoClient, 
						IFNULL(cast(sum(x.InvoicedfromClient) as DECIMAL(10,0)),0) InvoicedfromClient, 
						IFNULL(cast(sum(x.SenttoClient) as DECIMAL(10,0)),0) SenttoClient, 
						IFNULL(cast(sum(x.GotfromClient) as DECIMAL(10,0)),0) GotfromClient,
						i.name as concept,
						x.refFk as invoice,
						month(shipped) month,
						x.companyFk
				FROM
				(
				SELECT  t.id,
						t.shipped,
						IFNULL(pe.equivalentFk, s.itemFk) itemFk,
						IF(s.quantity > 0, s.quantity, NULL) InvoicedtoClient,
						IF(s.quantity < 0, -s.quantity, NULL) InvoicedfromClient,
						NULL SenttoClient,
						NULL GotfromClient,
						t.refFk,
						@month := 0 month,
						t.companyFk
					FROM sale s
						JOIN ticket t on t.id = s.ticketFk 
						JOIN packaging p ON p.itemFk = s.itemFk 
						LEFT JOIN packageEquivalentItem pe ON pe.itemFk = s.itemFk
						WHERE t.clientFk = vClientFk
						AND t.shipped > '2017-11-30' 
						AND p.isPackageReturnable
				UNION ALL
				SELECT  NULL,
						'2017-11-30',
						IFNULL(pe.equivalentFk, tps.itemFk) itemFk,
						tps.sent InvoicedtoClient,
						tps.returned InvoicedfromClient,
						NULL SenttoClient,
						NULL GotfromClient,
						'Histórico',
						NULL,
						NULL
						
					FROM ticketPackagingStartingStock tps
						LEFT JOIN packageEquivalentItem pe ON pe.itemFk = tps.itemFk
						WHERE tps.clientFk = vClientFk
							AND tps.isForgetable = FALSE
				UNION ALL
				SELECT  t.id,
					t.shipped,
					IFNULL(pe.equivalentFk, p.itemFk) itemFk,
					NULL,
					NULL,
					IF(tp.quantity > 0 AND t.shipped <= TIMESTAMPADD(DAY, - vGraceDays, CURDATE()), tp.quantity, NULL) SenttoClient,
					IF(tp.quantity < 0, -tp.quantity, NULL) GotfromClient,
					NULL AS refFk,
					NULL,
					t.companyFk
				FROM ticketPackaging tp 
					JOIN ticket t on t.id = tp.ticketFk 
					JOIN packaging p ON p.id = tp.packagingFk
					LEFT JOIN packageEquivalentItem pe ON pe.itemFk = p.itemFk
					WHERE t.clientFk = vClientFk
					AND t.shipped > '2017-11-21' ) x

					JOIN item i ON x.itemFk = i.id
					GROUP BY x.id, x.itemFk
			) t
			ORDER BY itemFk, shipped DESC
		) t2
		GROUP BY itemFk;
END$$

DELIMITER ;