DELIMITER $$
CREATE OR REPLACE DEFINER=`root`@`localhost` PROCEDURE `vn2008`.`balance_create`(
	IN vStartingMonth INT,
	IN vEndingMonth INT,
	IN vCompany INT,
	IN vIsConsolidated BOOLEAN,
	IN vInterGroupSalesIncluded BOOLEAN)
BEGIN
	DECLARE intGAP INT DEFAULT 7;
	DECLARE vYears INT DEFAULT 2;
	DECLARE vYear TEXT;
	DECLARE vOneYearAgo TEXT;
	DECLARE vTwoYearsAgo TEXT;
	DECLARE vQuery TEXT;
	DECLARE vConsolidatedGroup INT;
	DECLARE vStartingDate DATE DEFAULT '2020-01-01';
	DECLARE vCurYear INT DEFAULT YEAR(util.VN_CURDATE());
	DECLARE vStartingYear INT DEFAULT vCurYear - 2;
	DECLARE vTable TEXT;

	SET vTable = util.quoteIdentifier('balance_nest_tree');
	SET vYear = util.quoteIdentifier(vCurYear);
	SET vOneYearAgo = util.quoteIdentifier(vCurYear-1);
	SET vTwoYearsAgo = util.quoteIdentifier(vCurYear-2);

	-- Solicitamos la tabla tmp.nest, como base para el balance
	DROP TEMPORARY TABLE IF EXISTS tmp.nest;

	EXECUTE IMMEDIATE CONCAT(
		'CREATE TEMPORARY TABLE tmp.nest
			SELECT node.id
					,CONCAT( REPEAT(REPEAT(" ",?), COUNT(parent.id) - 1), node.name) AS name
					,node.lft
					,node.rgt
					,COUNT(parent.id) - 1 as depth
					,cast((node.rgt - node.lft - 1) / 2 as DECIMAL) as sons
				FROM ', vTable, ' AS node,
					', vTable, ' AS parent
				WHERE node.lft BETWEEN parent.lft AND parent.rgt
				GROUP BY node.id
				ORDER BY node.lft')
		USING intGAP;

	DROP TEMPORARY TABLE IF EXISTS tmp.balance;
	CREATE TEMPORARY TABLE tmp.balance
		SELECT * FROM tmp.nest;

	DROP TEMPORARY TABLE IF EXISTS tmp.empresas_receptoras;
	DROP TEMPORARY TABLE IF EXISTS tmp.empresas_emisoras;

	SELECT empresa_grupo INTO vConsolidatedGroup
		FROM empresa
		WHERE id = vCompany;

	CREATE TEMPORARY TABLE tmp.empresas_receptoras
		SELECT id as empresa_id
			FROM vn2008.empresa
			WHERE id = vCompany
				OR empresa_grupo = IF(vIsConsolidated, vConsolidatedGroup, NULL);

	CREATE TEMPORARY TABLE tmp.empresas_emisoras
		SELECT Id_Proveedor as empresa_id FROM vn2008.Proveedores p;

		IF vInterGroupSalesIncluded = FALSE THEN

			DELETE ee.*
				FROM tmp.empresas_emisoras ee
					JOIN vn2008.empresa e on e.id = ee.empresa_id
				WHERE e.empresa_grupo = vConsolidatedGroup;

		END IF;

	-- Se calculan las facturas que intervienen, para luego poder servir el desglose desde aqui
	DROP TEMPORARY TABLE IF EXISTS tmp.balance_desglose;
	CREATE TEMPORARY TABLE tmp.balance_desglose
		SELECT er.empresa_id  receptora_id,
				ee.empresa_id  emisora_id,
				year(IFNULL(r.bookEntried,IFNULL(r.dateBooking, r.Fecha))) `year`,
				month(IFNULL(r.bookEntried,IFNULL(r.dateBooking, r.Fecha))) `month`,
				gastos_id Id_Gasto,
				SUM(bi) importe
			FROM recibida r
				JOIN recibida_iva ri on ri.recibida_id = r.id
				JOIN tmp.empresas_receptoras er on er.empresa_id = r.empresa_id
				JOIN tmp.empresas_emisoras ee ON ee.empresa_id = r.proveedor_id
			WHERE IFNULL(r.bookEntried,IFNULL(r.dateBooking, r.Fecha)) >= vStartingDate
				AND r.contabilizada
			GROUP BY Id_Gasto, year, month, emisora_id, receptora_id;

	INSERT INTO tmp.balance_desglose(
			receptora_id,
			emisora_id,
			year,
			month,
			Id_Gasto,
			importe)
		SELECT gr.empresa_id,
				gr.empresa_id,
				year,
				month,
				Id_Gasto,
				SUM(importe)
			FROM gastos_resumen gr
				JOIN tmp.empresas_receptoras er on gr.empresa_id = er.empresa_id
			WHERE year >= vStartingYear
				AND month BETWEEN vStartingMonth AND vEndingMonth
			GROUP BY Id_Gasto, year, month, gr.empresa_id;

	DELETE FROM tmp.balance_desglose
		WHERE month < vStartingMonth
			OR month > vEndingMonth;

	-- Ahora el balance
	EXECUTE IMMEDIATE CONCAT(
		'ALTER TABLE tmp.balance
			ADD COLUMN ', vTwoYearsAgo ,' INT(10) NULL ,
			ADD COLUMN ', vOneYearAgo ,' INT(10) NULL ,
			ADD COLUMN ', vYear,' INT(10) NULL ,
			ADD COLUMN Id_Gasto VARCHAR(10) NULL,
			ADD COLUMN Gasto VARCHAR(45) NULL');

	-- Añadimos los gastos, para facilitar el formulario
	UPDATE tmp.balance b
			JOIN vn2008.balance_nest_tree bnt on bnt.id = b.id
			JOIN (SELECT id Id_Gasto, name Gasto
					FROM vn.expense
					GROUP BY id) g ON g.Id_Gasto = bnt.Id_Gasto COLLATE utf8_general_ci
		SET b.Id_Gasto = g.Id_Gasto COLLATE utf8_general_ci
			, b.Gasto = g.Gasto COLLATE utf8_general_ci ;

	-- Rellenamos los valores de primer nivel, los que corresponden a los gastos simples
	WHILE vYears >= 0 DO
		SET vQuery = CONCAT(
			'UPDATE tmp.balance b
						JOIN
						(SELECT Id_Gasto, SUM(Importe) as Importe
							FROM tmp.balance_desglose
							WHERE year = ?
							GROUP BY Id_Gasto
						) sub on sub.Id_Gasto = b.Id_Gasto COLLATE utf8_general_ci
					SET ', util.quoteIdentifier(vCurYear - vYears), ' =  - Importe');

		EXECUTE IMMEDIATE vQuery
			USING vCurYear - vYears;

		SET vYears = vYears - 1;
	END WHILE;

	-- Añadimos las ventas
	EXECUTE IMMEDIATE CONCAT(
		'UPDATE tmp.balance b
				JOIN (
					SELECT SUM(IF(year = ?, venta, 0)) y2,
							SUM(IF(year = ?, venta, 0)) y1,
							SUM(IF(year = ?, venta, 0)) y0,
							c.Gasto
						FROM bs.ventas_contables c
							JOIN tmp.empresas_receptoras er on er.empresa_id = c.empresa_id
						WHERE  month BETWEEN ? AND ?
						GROUP BY c.Gasto
				) sub ON sub.Gasto = b.Id_Gasto COLLATE utf8_general_ci
			SET b.', vTwoYearsAgo, '= IFNULL(b.', vTwoYearsAgo, ', 0) + sub.y2,
				b.', vOneYearAgo, '= IFNULL(b.', vOneYearAgo, ', 0) + sub.y1,
				b.', vYear, '= IFNULL(b.', vYear, ', 0) + sub.y0')
		USING vCurYear-2,
			vCurYear-1,
			vCurYear,
			vStartingMonth,
			vEndingMonth;

	-- Ventas intra grupo
	IF NOT vInterGroupSalesIncluded THEN

		SELECT lft, rgt INTO @grupoLft, @grupoRgt
			FROM tmp.balance b
			WHERE TRIM(b.`name`) = 'Grupo';

		DELETE
			FROM tmp.balance
			WHERE lft BETWEEN @grupoLft AND @grupoRgt;

	END IF;

	-- Rellenamos el valor de los padres con la suma de los hijos
	DROP TEMPORARY TABLE IF EXISTS tmp.balance_aux;
	CREATE TEMPORARY TABLE tmp.balance_aux
		SELECT * FROM tmp.balance;

	EXECUTE IMMEDIATE
		CONCAT('UPDATE tmp.balance b
			JOIN (
				SELECT b1.id,
						b1.name,
						SUM(b2.', vYear,') thisYear,
						SUM(b2.', vOneYearAgo,') oneYearAgo,
						SUM(b2.', vTwoYearsAgo,') twoYearsAgo
					FROM tmp.nest b1
						JOIN tmp.balance_aux b2 on b2.lft BETWEEN b1.lft and b1.rgt
					GROUP BY b1.id)sub ON sub.id = b.id
			SET b.', vYear, ' = thisYear,
				b.', vOneYearAgo, ' = oneYearAgo,
				b.', vTwoYearsAgo, ' = twoYearsAgo');

	SELECT *, CONCAT('',ifnull(Id_Gasto,'')) newgasto
		FROM tmp.balance;
END$$
DELIMITER ;