DELIMITER $$
CREATE OR REPLACE DEFINER=`root`@`localhost` PROCEDURE `vn`.`item_comparative`(
	vDate DATETIME,
	vDayRange TINYINT,
	vWarehouseFk TINYINT,
	vAvailableSince DATE,
	vBuyerFk INT,
	vIsFloramondo BOOL,
	vCountryFk INT
)
proc: BEGIN
/**
 * Generates a comparison table of items by itemType/buyer/date.
 * The data is calculated based on the provided parameters.
 *
 * @param vDate The date for which the comparison will be generated.
 * @param vDayRange The range of days to consider for the comparison.
 * @param vWarehouseFk The warehouse identifier to filter the items.
 * @param vAvailableSince The availability date from which the items are considered available.
 * @param vBuyerFk The buyer identifier to filter the items.
 * @param vIsFloramondo Indicates whether only Floramondo items should be included (optional).
 * @param vCountryFk The country identifier.
 * @param tmp.comparativeFilterType(filterFk INT, itemTypeFk INT)
 * @return tmp.comparative
 */

	DECLARE vDayRangeStart DATE;
	DECLARE vDayRangeEnd DATE;
	DECLARE w1, w2, w3, w4, w5, w6, w7 INT;
	DECLARE y1, y2, y3, y4, y5, y6, y7 INT;
	DECLARE z1, z2, z3, z4, z5, z6, z7 INT;
	DECLARE vPeriod INT;
	DECLARE i INT DEFAULT 0;
	DECLARE vHasTypeFilter BOOL;
	DECLARE vWeekRange INT;
	DECLARE vWeekCount TINYINT;
	DECLARE vMaxDayRange INT;
	DECLARE vMinDayRange INT;
	DECLARE vDefaultDayRange INT;

	IF NOT(SELECT COUNT(*) FROM comparativeConfig)THEN
		LEAVE proc;
	END IF;

	SELECT weekRange,
			weekRange * 2 + 1,
			maxDayRange,
			minDayRange,
			defaultDayRange
		INTO vWeekRange,
			vWeekCount,
			vMaxDayRange,
			vMinDayRange,
			vDefaultDayRange
		FROM comparativeConfig;

	IF vDayRange < vMinDayRange OR vDayRange > vMaxDayRange THEN
		SET vDayRange = vDefaultDayRange;
	END IF;

	SELECT MIN(dated) INTO vDayRangeStart
		FROM `time`
		WHERE dated <= vDate
			GROUP BY period
			ORDER BY dated desc 
		LIMIT 1 OFFSET vWeekRange;

	SELECT MAX(dated) INTO vDayRangeEnd
		FROM `time`
		WHERE dated >= vDate
			GROUP BY period
			ORDER BY dated ASC 
		LIMIT 1 OFFSET vWeekRange;

	SELECT COUNT(itemTypeFk) > 0 INTO vHasTypeFilter 
		FROM tmp.comparativeFilterType;

	CREATE OR REPLACE TEMPORARY TABLE tmp.itemInventory
		(PRIMARY KEY (id))
		ENGINE = MEMORY
		SELECT i.id
			FROM item i
				JOIN itemType t ON t.id = i.typeFk
				JOIN itemCategory c ON c.id = t.categoryFk
				LEFT JOIN worker w ON w.id = t.workerFk
			WHERE (NOT vHasTypeFilter OR t.id IN (
					SELECT itemTypeFk FROM tmp.comparativeFilterType
				))
				AND (vBuyerFk IS NULL OR t.workerFk = vBuyerFk) 
				AND (vIsFloramondo IS NULL OR i.isFloramondo = vIsFloramondo); 

	IF vDate < util.VN_CURDATE() THEN
		ALTER TABLE tmp.itemInventory
			ADD `buy_id` INT NOT NULL DEFAULT 0,
			ADD `buy_date` DATE DEFAULT '2000-01-01',
			ADD `life` INT DEFAULT 0,
			ADD `sd` INT DEFAULT 0,
			ADD `avalaible` INT DEFAULT 0,
			ADD `visible` INT DEFAULT 0;
	ELSE
		CALL multipleInventory(vAvailableSince, vWarehouseFk, vDayRange);
		CALL item_multipleBuy(vDate, vWarehouseFk);
		CALL item_multipleBuyByDate(vDate, vWarehouseFk);
	END IF;

	CREATE OR REPLACE TEMPORARY TABLE tTable (
		cy INT(6) PRIMARY KEY,
		ly INT(6),
		zy INT(6),
		INDEX (ly)
	);

	REPEAT
		SET i = i + 1;

		SELECT t.period INTO vPeriod
			FROM `time` t
			WHERE t.dated = vDayRangeStart + INTERVAL (vWeekCount * (i - 1)) DAY;

		INSERT IGNORE INTO tTable(cy, ly, zy)
			VALUES(vPeriod, vPeriod - 100, vPeriod - 200);
	UNTIL i = vWeekCount END REPEAT;

	SELECT cy, ly, zy INTO w1, y1, z1 FROM tTable LIMIT 1;
	SELECT cy, ly, zy INTO w2, y2, z2 FROM tTable WHERE cy > w1 LIMIT 1;
	SELECT cy, ly, zy INTO w3, y3, z3 FROM tTable WHERE cy > w2 LIMIT 1;
	SELECT cy, ly, zy INTO w4, y4, z4 FROM tTable WHERE cy > w3 LIMIT 1;
	SELECT cy, ly, zy INTO w5, y5, z5 FROM tTable WHERE cy > w4 LIMIT 1;
	SELECT cy, ly, zy INTO w6, y6, z6 FROM tTable WHERE cy > w5 LIMIT 1;
	SELECT cy, ly, zy INTO w7, y7, z7 FROM tTable WHERE cy > w6 LIMIT 1;

	-- Genera una tabla con los datos del año pasado.
	CREATE OR REPLACE TEMPORARY TABLE tLastYear
		(KEY (lItemFk))
		ENGINE = MEMORY
		SELECT c.itemFk lItemFk,
				SUM(IF(c.timePeriod = y1, c.quantity, 0)) lweek1,
				SUM(IF(c.timePeriod = y2, c.quantity, 0)) lweek2,
				SUM(IF(c.timePeriod = y3, c.quantity, 0)) lweek3,
				SUM(IF(c.timePeriod = y4, c.quantity, 0)) lweek4,
				SUM(IF(c.timePeriod = y5, c.quantity, 0)) lweek5,
				SUM(IF(c.timePeriod = y6, c.quantity, 0)) lweek6,
				SUM(IF(c.timePeriod = y7, c.quantity, 0)) lweek7,
				SUM(IF(c.timePeriod = y1, c.price, 0)) lprice1,
				SUM(IF(c.timePeriod = y2, c.price, 0)) lprice2,
				SUM(IF(c.timePeriod = y3, c.price, 0)) lprice3,
				SUM(IF(c.timePeriod = y4, c.price, 0)) lprice4,
				SUM(IF(c.timePeriod = y5, c.price, 0)) lprice5,
				SUM(IF(c.timePeriod = y6, c.price, 0)) lprice6,
				SUM(IF(c.timePeriod = y7, c.price, 0)) lprice7
			FROM tmp.itemInventory ai
				JOIN comparative c ON c.itemFk = ai.id
				JOIN warehouse w ON w.id = c.warehouseFk
				JOIN tTable wt ON c.timePeriod = wt.ly
			WHERE (vWarehouseFk IS NULL OR vWarehouseFk = c.warehouseFk)
				AND w.isComparative
				AND (vCountryFk IS NULL OR c.countryFk = vCountryFk)
			GROUP BY ai.id;

	-- Genera una tabla con los datos de hace 2 años
	CREATE OR REPLACE TEMPORARY TABLE tTwoYearsAgo
		(KEY (tItemFk))
		ENGINE = MEMORY
		SELECT c.itemFk tItemFk,
				SUM(IF(c.timePeriod = z1, c.quantity, 0)) vlweek1,
				SUM(IF(c.timePeriod = z2, c.quantity, 0)) vlweek2,
				SUM(IF(c.timePeriod = z3, c.quantity, 0)) vlweek3,
				SUM(IF(c.timePeriod = z4, c.quantity, 0)) vlweek4,
				SUM(IF(c.timePeriod = z5, c.quantity, 0)) vlweek5,
				SUM(IF(c.timePeriod = z6, c.quantity, 0)) vlweek6,
				SUM(IF(c.timePeriod = z7, c.quantity, 0)) vlweek7,
				SUM(IF(c.timePeriod = z1, c.price, 0)) vlprice1,
				SUM(IF(c.timePeriod = z2, c.price, 0)) vlprice2,
				SUM(IF(c.timePeriod = z3, c.price, 0)) vlprice3,
				SUM(IF(c.timePeriod = z4, c.price, 0)) vlprice4,
				SUM(IF(c.timePeriod = z5, c.price, 0)) vlprice5,
				SUM(IF(c.timePeriod = z6, c.price, 0)) vlprice6,
				SUM(IF(c.timePeriod = z7, c.price, 0)) vlprice7
			FROM tmp.itemInventory ai
				JOIN comparative c ON c.itemFk = ai.id
				JOIN warehouse w ON w.id = c.warehouseFk
				JOIN tTable wt ON c.timePeriod = wt.zy
			WHERE (vWarehouseFk IS NULL OR vWarehouseFk = c.warehouseFk)
				AND w.isComparative
				AND (vCountryFk IS NULL OR c.countryFk = vCountryFk)
			GROUP BY ai.id;

	-- Genera una tabla con los datos de este año
	CREATE OR REPLACE TEMPORARY TABLE tCurrentYear
		(KEY (cItemFk))
		ENGINE = MEMORY
		SELECT t.itemFk cItemFk,
				SUM(IF(`week` = w1, total, 0)) cweek1,
				SUM(IF(`week` = w2, total, 0)) cweek2,
				SUM(IF(`week` = w3, total, 0)) cweek3,
				SUM(IF(`week` = w4, total, 0)) cweek4,
				SUM(IF(`week` = w5, total, 0)) cweek5,
				SUM(IF(`week` = w6, total, 0)) cweek6,
				SUM(IF(`week` = w7, total, 0)) cweek7,
				SUM(IF(`week` = w1, price, 0)) cprice1,
				SUM(IF(`week` = w2, price, 0)) cprice2,
				SUM(IF(`week` = w3, price, 0)) cprice3,
				SUM(IF(`week` = w4, price, 0)) cprice4,
				SUM(IF(`week` = w5, price, 0)) cprice5,
				SUM(IF(`week` = w6, price, 0)) cprice6,
				SUM(IF(`week` = w7, price, 0)) cprice7
			FROM (
				SELECT s.itemFk,
						ti.period `week`,
						SUM(s.quantity) total,
						TRUNCATE(SUM(s.quantity * s.priceFixed), 0) price
					FROM ticket t FORCE INDEX (Fecha)
						JOIN sale s ON t.id = s.ticketFk
						JOIN tmp.itemInventory it ON it.id = s.itemFk
						JOIN `time` ti ON ti.dated = DATE(t.shipped)
						JOIN item i ON i.id = s.itemFk
						JOIN itemType tp ON tp.id = i.typeFk
						JOIN itemCategory ic ON ic.id = tp.categoryFk
						JOIN warehouse w ON w.id = t.warehouseFk
						JOIN `address` ad ON ad.id = t.addressFk
						JOIN province p ON p.id = ad.provinceFk
						JOIN `client` c ON c.id = ad.clientFk
					WHERE t.shipped BETWEEN vDayRangeStart AND util.dayEnd(vDayRangeEnd)
						AND c.typeFk IN ('normal', 'handMaking')
						AND (vWarehouseFk IS NULL OR vWarehouseFk = w.id)
						AND (vCountryFk IS NULL OR p.countryFk = vCountryFk)
						AND w.isComparative
					GROUP BY i.id, `week`
			) t
			GROUP BY t.itemFk;

	-- Genera la tabla con la comparativa
	CREATE OR REPLACE TEMPORARY TABLE tmp.comparative
		ENGINE = MEMORY
		SELECT it.subName productor,
				b.packing,
				b.buyingValue costefijo,
				b.groupingMode caja,
				it.image ArticleImage,
				IFNULL(it.inkFk, '?') color,
				tp.code tipo,
				it.typeFk tipo_id,
				o.code origen,
				it.category categoria,
				it.stems tallos,
				it.`size` medida,
				it.name article,
				w.code codigoTrabajador,
				tp.categoryFk reino_id,
				ly.*,
				cy.*,
				zy.*,
				it.*,
				it.id Id_Article,
				i.buy_id, 
				tp.life, 
				IFNULL(i.sd, 0) sd,
				i.avalaible,
				i.visible,
				i.buy_date,
				e.id provider_id,
				it.comment comments,
				it.description itemDescription,
				IF(cy.cItemFk IS NULL AND i.visible = 0
					AND i.avalaible = 0 AND (i.sd IS NULL OR i.sd = 0), 
					FALSE,
					TRUE
				) filtret,
				IF(it.hasMinPrice, FORMAT(it.minPrice, 2), "") pvp,
				s.company_name
			FROM tmp.itemInventory i
				JOIN item it ON it.id = i.id
				JOIN itemType tp ON tp.id = it.typeFk
				JOIN worker w ON w.id = tp.workerFk
				LEFT JOIN buy b ON b.id = i.buy_id
				LEFT JOIN `entry` e ON e.id = b.entryFk
				JOIN origin o ON o.id = it.originFk
				LEFT JOIN tLastYear ly ON ly.lItemFk = it.id
				LEFT JOIN tCurrentYear cy ON cy.cItemFk = it.id
				LEFT JOIN tTwoYearsAgo zy ON zy.tItemFk = it.id
				LEFT JOIN edi.ekt e2 ON e2.id = b.ektFk
				LEFT JOIN edi.supplier s ON s.supplier_id = e2.pro
			WHERE i.avalaible
				OR i.visible
				OR i.sd
				OR cy.cweek1 OR cy.cweek2 OR cy.cweek3 OR cy.cweek4 OR cy.cweek5 OR cy.cweek6 OR cy.cweek7 
				OR ly.lweek1 OR ly.lweek2 OR ly.lweek3 OR ly.lweek4 OR ly.lweek5 OR ly.lweek6 OR ly.lweek7 
				OR zy.vlweek1 OR zy.vlweek2 OR zy.vlweek3 OR zy.vlweek4 OR zy.vlweek5 OR zy.vlweek6 OR zy.vlweek7;

	DROP TEMPORARY TABLE IF EXISTS
		tmp.itemInventory,
		tTwoYearsAgo,
		tLastYear,
		tCurrentYear,
		tTable;
END$$
DELIMITER ;