DELIMITER $$
CREATE OR REPLACE DEFINER=`vn`@`localhost` PROCEDURE `vn`.`itemShelving_getSaleDate`(vShelvingFk VARCHAR(3))
BEGIN
	
	/* Devuelve la mínima fecha en que se necesita cada producto en esa matrícula.	
	 * 
	 *  @param vShelvingFk Matrícula del carro o pallet
	 */

	DECLARE vWarehouseFk INT;
	DECLARE vStockScopeDays INT;

	SELECT s.warehouseFk, stockScopeDays
			INTO vWarehouseFk, vStockScopeDays
		FROM sector s
			JOIN operator o ON s.id = o.sectorFk
			JOIN productionConfig pc
		WHERE o.workerFk = account.myUser_getId();

	IF vWarehouseFk IS NULL
		THEN CALL util.throw('WarehouseFk not setted');
	END IF;	

	IF vStockScopeDays IS NULL
		THEN CALL util.throw('StockScopeDays not setted');
	END IF;	

	CREATE OR REPLACE TEMPORARY TABLE tmp.tItems
			(PRIMARY KEY (itemFk))
			ENGINE = MEMORY
			SELECT itemFk, SUM(visible) visible
				FROM itemShelving
				WHERE shelvingFk = vShelvingFk COLLATE utf8_unicode_ci
				GROUP BY itemFk;

	CREATE OR REPLACE TEMPORARY TABLE tmp.tStockByDay
		(INDEX (itemFk, dated))
		ENGINE = MEMORY
			SELECT dated,
					SUM(t3.amount) OVER (PARTITION BY t3.itemFk ORDER BY dated) stock,
					t3.itemFk
				FROM (
					SELECT t.itemFk, dated, SUM(amount) amount 	
						FROM (
							SELECT t2.itemFk, t2.amount, t2.dated
								FROM (
									SELECT item_id itemFk, amount, util.VN_CURDATE() dated
										FROM cache.stock s
											JOIN tmp.tItems i ON i.itemFk = s.item_id
										WHERE s.warehouse_id = vWarehouseFk
									UNION ALL
									SELECT ish.itemFk, - SUM(ish.visible), util.VN_CURDATE()
										FROM itemShelving ish 
											JOIN tmp.tItems i ON i.itemFk = ish.itemFk
											JOIN shelving sh ON sh.code = ish.shelvingFk 
											JOIN parking p ON sh.parkingFk = p.id 
											JOIN sector s ON s.id = p.sectorFk
										WHERE s.isReserve 
										GROUP BY ish.itemFk
									UNION ALL
									SELECT iei.itemFk, SUM(quantity), landed
										FROM itemEntryIn iei
											JOIN tmp.tItems i ON i.itemFk = iei.itemFk
										WHERE iei.landed BETWEEN util.VN_CURDATE() AND util.VN_CURDATE() + INTERVAL vStockScopeDays DAY
											AND iei.warehouseInFk = vWarehouseFk
											AND NOT isVirtualStock
										GROUP BY iei.itemFk, iei.landed
									UNION ALL
									SELECT ieo.itemFk, SUM(quantity), shipped
										FROM itemEntryOut ieo
											JOIN tmp.tItems i ON i.itemFk = ieo.itemFk
										WHERE ieo.shipped BETWEEN util.VN_CURDATE() AND util.VN_CURDATE() + INTERVAL vStockScopeDays DAY
											AND ieo.warehouseOutFk = vWarehouseFk
										GROUP BY ieo.itemFk, ieo.shipped
									UNION ALL
									SELECT i.itemFk, SUM(ito.quantity), DATE(ito.shipped)
										FROM itemTicketOut ito
											JOIN tmp.tItems i ON i.itemFk = ito.itemFk
										WHERE ito.shipped BETWEEN util.VN_CURDATE() AND util.VN_CURDATE() + INTERVAL vStockScopeDays DAY
											AND ito.warehouseFk = vWarehouseFk
										GROUP BY ito.itemFk, ito.shipped
									) t2
							JOIN tmp.tItems i ON i.itemFk = t2.itemFk)t
							GROUP BY t.itemFk, dated
					) t3;
					
	-- Se restan las entradas de hoy
		UPDATE tmp.tStockByDay sbd
			JOIN (SELECT iei.itemFk, SUM(quantity) todayEntry
						FROM itemEntryIn iei
							JOIN tmp.tItems i ON i.itemFk = iei.itemFk
						WHERE iei.landed = util.VN_CURDATE()
							AND iei.warehouseInFk = vWarehouseFk
							AND NOT iei.isVirtualStock) sub ON sub.itemFk = sbd.itemFk
			SET sbd.stock = sbd.stock - sub.todayEntry
			WHERE sbd.dated = util.VN_CURDATE();

	-- Se añaden las lineas de venta servidas
		UPDATE tmp.tStockByDay sbd
			JOIN (SELECT s.itemFK, SUM(quantity) amount 
						FROM sale s
							JOIN ticket t ON t.id = s.ticketFk
							WHERE t.warehouseFk = vWarehouseFk
								AND t.shipped BETWEEN util.VN_CURDATE() AND util.midnight()
								AND s.isPicked
							GROUP BY s.itemFk) sub ON sub.itemFk = sbd.itemFk
			SET sbd.stock = sbd.stock + sub.amount;

	-- Se añaden los items ubicados hoy
		UPDATE tmp.tStockByDay sbd
			JOIN (SELECT ish.itemFK, SUM(ish.visible) amount 
						FROM itemShelving ish
							JOIN shelving sh ON sh.code = ish.shelvingFk
							JOIN parking p ON p.id = sh.parkingFk
							JOIN sector s ON s.id = p.sectorFk
						WHERE s.warehouseFk = vWarehouseFk
							AND NOT s.isReserve
							AND ish.created BETWEEN util.VN_CURDATE() AND util.midnight()
						GROUP BY ish.itemFk) sub ON sub.itemFk = sbd.itemFk
			SET sbd.stock = sbd.stock + sub.amount;

			SELECT ts.itemFk, 
				i.longName,
				IF(ts.stock<=0, ts.dated, NULL) dated,
				ts.stock, 
				sub4.visible,
				sub4.shelvingFk
				FROM(
					SELECT IFNULL(sub2.minDated, sub.minDated) dated,
							IFNULL(sub2.itemFk, sub.itemFk) itemFk
						FROM(SELECT sbd.itemFk,
									MIN(dated) minDated,
									sbd.stock
								FROM tmp.tItems ti
									LEFT JOIN tmp.tStockByDay sbd ON sbd.itemFk = ti.itemFk 
								GROUP BY itemFk)sub
							LEFT JOIN (
									SELECT sbd.itemFk,
										MIN(dated) minDated,
										sbd.stock
									FROM tmp.tItems ti
										LEFT JOIN tmp.tStockByDay sbd ON sbd.itemFk = ti.itemFk 
									WHERE sbd.stock <= 0
									GROUP BY itemFk)sub2 ON sub2.itemFk =sub.itemFk
						WHERE sub2.itemFk IS NOT NULL 
							OR (sub2.itemFk IS NULL AND sub.itemFk IS NOT NULL)) sub3
					LEFT JOIN tmp.tStockByDay ts ON ts.itemFk = sub3.itemFk  AND ts.dated = sub3.dated
					JOIN (SELECT ish.itemFk,
								ish.visible,
								p.sectorFk,
								ish.shelvingFk
							FROM itemShelving ish
								JOIN vn.shelving sh ON sh.code = ish.shelvingFk
								LEFT JOIN parking p ON p.id = parkingFk
								LEFT JOIN vn.sector s ON s.id = p.sectorFk
							WHERE ish.shelvingFk = vShelvingFk COLLATE utf8_unicode_ci
					) sub4 ON sub4.itemFk = ts.itemFk
					LEFT JOIN sector s ON s.id = sub4.sectorFk
					LEFT JOIN item i ON i.id = ts.itemFk
				WHERE NOT s.isReserve;

		DROP TEMPORARY TABLE tmp.tStockByDay, tmp.tItems;

END$$
DELIMITER ;