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

DELIMITER $$
USE `vn`$$
CREATE DEFINER=`root`@`%` PROCEDURE `zone_getEvents`(
	vProvinceFk INT,
    vPostCode VARCHAR(255),
    vAgencyModeFk INT)
BEGIN
/**
 * Returns available events for the passed province/postcode and agency.
 *
 * @param vAgencyModeFk The agency mode id
 * @param vProvinceFk The province id
 * @param vPostCode The postcode or %NULL to use the province
 */
	DECLARE vGeoFk INT;
	
	IF vPostCode IS NOT NULL THEN
		SELECT p.geoFk INTO vGeoFk
			FROM postCode p
				JOIN town t ON t.id = p.townFk
			WHERE p.`code` = vPostCode
				AND t.provinceFk = vProvinceFk;
	ELSE
		SELECT geoFk INTO vGeoFk
			FROM province
			WHERE id = vProvinceFk;
	END IF;

	CALL zone_getFromGeo(vGeoFk);

	IF vAgencyModeFk IS NOT NULL THEN
		DELETE t FROM tmp.zone t
			JOIN zone z ON z.id = t.id
			WHERE z.agencyModeFk != vAgencyModeFk;
	END IF;

	SELECT e.zoneFk, e.`type`, e.dated, e.`started`, e.`ended`, e.weekDays
		FROM tmp.zone t
			JOIN zoneEvent e ON e.zoneFk = t.id;

	SELECT e.zoneFk, e.dated
		FROM tmp.zone t
			JOIN zoneExclusion e ON e.zoneFk = t.id;

	DROP TEMPORARY TABLE tmp.zone;
END$$

DELIMITER ;