-- 仓储表 C_* → c_*（小写前缀，对齐 t_* 命名风格）
-- 可重复执行：源表不存在或目标表已存在则跳过

DROP PROCEDURE IF EXISTS sp_rename_warehouse_table_if_needed;
DELIMITER $$
CREATE PROCEDURE sp_rename_warehouse_table_if_needed(IN old_name VARCHAR(128), IN new_name VARCHAR(128))
BEGIN
  IF EXISTS (
    SELECT 1 FROM information_schema.TABLES
    WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = old_name
  ) AND NOT EXISTS (
    SELECT 1 FROM information_schema.TABLES
    WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = new_name
  ) THEN
    SET @ddl := CONCAT('RENAME TABLE `', old_name, '` TO `', new_name, '`');
    PREPARE stmt FROM @ddl;
    EXECUTE stmt;
    DEALLOCATE PREPARE stmt;
  END IF;
END$$
DELIMITER ;

CALL sp_rename_warehouse_table_if_needed('C_sku', 'c_sku');
CALL sp_rename_warehouse_table_if_needed('C_bin_location', 'c_bin_location');
CALL sp_rename_warehouse_table_if_needed('C_inventory', 'c_inventory');
CALL sp_rename_warehouse_table_if_needed('C_inbound_notice', 'c_inbound_notice');
CALL sp_rename_warehouse_table_if_needed('C_inbound_box', 'c_inbound_box');
CALL sp_rename_warehouse_table_if_needed('C_inbound_box_line', 'c_inbound_box_line');
CALL sp_rename_warehouse_table_if_needed('C_parcel', 'c_parcel');
CALL sp_rename_warehouse_table_if_needed('C_parcel_arrival', 'c_parcel_arrival');
CALL sp_rename_warehouse_table_if_needed('C_parcel_item', 'c_parcel_item');
CALL sp_rename_warehouse_table_if_needed('C_sku_platform_map', 'c_sku_platform_map');

DROP PROCEDURE IF EXISTS sp_rename_warehouse_table_if_needed;