USE `vn`;
DROP procedure IF EXISTS `ticketGetTax`;

DELIMITER $$
USE `vn`$$
CREATE DEFINER=`root`@`%` PROCEDURE `ticketGetTax`()
    READS SQL DATA
BEGIN
/**
 * Calcula la base imponible, el IVA y el recargo de equivalencia para
 * un conjunto de tickets.
 *
 * @table tmp.ticket(ticketFk) Identificadores de los tickets a calcular
 * @return tmp.ticketTax Impuesto desglosado para cada ticket
 * @return tmp.ticketAmount
 */
	DROP TEMPORARY TABLE IF EXISTS tmp.addressCompany;
	CREATE TEMPORARY TABLE tmp.addressCompany
		(INDEX (addressFk, companyFk))
		ENGINE = MEMORY
		SELECT DISTINCT t.addressFk, t.companyFk
			FROM tmp.ticket tmpTicket
				JOIN ticket t ON t.id = tmpTicket.ticketFk;


	CALL addressTaxArea ();
	 
	DROP TEMPORARY TABLE IF EXISTS tmp.ticketTax;
	CREATE TEMPORARY TABLE tmp.ticketTax
		(INDEX (ticketFk))
		ENGINE = MEMORY
		SELECT tmpTicket.ticketFk,
				bp.pgcFk,
				ROUND(SUM(s.quantity * s.price * (100 - s.discount)/100 
					),2) AS taxableBase,
				ROUND(SUM(s.quantity * s.price * (100 - s.discount)/100
					) * pgc.rate / 100,2) AS tax,
				tc.code
			FROM tmp.ticket tmpTicket
				JOIN sale s ON s.ticketFk = tmpTicket.ticketFk
				JOIN item i ON i.id = s.itemFk
				JOIN ticket t ON t.id = tmpTicket.ticketFk
				JOIN supplier su ON su.id = t.companyFk
				JOIN tmp.addressTaxArea ata 
					ON ata.addressFk = t.addressFk AND ata.companyFk = t.companyFk
				JOIN itemTaxCountry itc 
					ON itc.itemFk = i.id AND itc.countryFk = su.countryFk
				JOIN bookingPlanner bp 
					ON bp.countryFk = su.countryFk
						AND bp.taxAreaFk = ata.areaFk
						AND bp.taxClassFk = itc.taxClassFk
				JOIN pgc ON pgc.code = bp.pgcFk
				JOIN taxClass tc ON tc.id = bp.taxClassFk
			GROUP BY tmpTicket.ticketFk, pgc.code
			HAVING taxableBase != 0;
            
	DROP TEMPORARY TABLE IF EXISTS tmp.ticketAmount;
	CREATE TEMPORARY TABLE tmp.ticketAmount
		(INDEX (ticketFk))
		ENGINE = MEMORY
		SELECT ticketFk, taxableBase, SUM(tax) tax
			FROM tmp.ticketTax
			GROUP BY ticketFk, code;

	DROP TEMPORARY TABLE IF EXISTS tmp.addressCompany;
	DROP TEMPORARY TABLE IF EXISTS tmp.addressTaxArea;
END$$

DELIMITER ;