-- OnboardX 新版入职登记表与框架实体字段对齐
-- 仅补列，不删除或重建现有业务数据。

SET NAMES utf8mb4;

DROP PROCEDURE IF EXISTS `ob_add_column_if_missing`;
DELIMITER $$
CREATE PROCEDURE `ob_add_column_if_missing`(
    IN p_table_name VARCHAR(128),
    IN p_column_name VARCHAR(128),
    IN p_column_definition VARCHAR(1000)
)
BEGIN
    IF NOT EXISTS (
        SELECT 1
        FROM information_schema.COLUMNS
        WHERE TABLE_SCHEMA = DATABASE()
          AND TABLE_NAME = p_table_name
          AND COLUMN_NAME = p_column_name
    ) THEN
        SET @ddl = CONCAT(
            'ALTER TABLE `', p_table_name, '` ADD COLUMN `',
            p_column_name, '` ', p_column_definition
        );
        PREPARE stmt FROM @ddl;
        EXECUTE stmt;
        DEALLOCATE PREPARE stmt;
    END IF;
END$$
DELIMITER ;

CALL `ob_add_column_if_missing`(
    'ob_variable_definition',
    'Status',
    'VARCHAR(20) NULL DEFAULT ''enable'' COMMENT ''状态'' AFTER `Remark`'
);
CALL `ob_add_column_if_missing`(
    'ob_variable_definition',
    'CreateUserId',
    'BIGINT NULL COMMENT ''创建者Id'' AFTER `UpdateTime`'
);
CALL `ob_add_column_if_missing`(
    'ob_variable_definition',
    'UpdateUserId',
    'BIGINT NULL COMMENT ''修改者Id'' AFTER `CreateUserId`'
);

CALL `ob_add_column_if_missing`(
    'ob_task_employee_info',
    'Status',
    'VARCHAR(20) NULL DEFAULT ''enable'' COMMENT ''状态'' AFTER `CustomVariablesJson`'
);
CALL `ob_add_column_if_missing`(
    'ob_task_employee_info',
    'CreateUserId',
    'BIGINT NULL COMMENT ''创建者Id'' AFTER `UpdateTime`'
);
CALL `ob_add_column_if_missing`(
    'ob_task_employee_info',
    'UpdateUserId',
    'BIGINT NULL COMMENT ''修改者Id'' AFTER `CreateUserId`'
);

DROP PROCEDURE IF EXISTS `ob_add_column_if_missing`;

-- 检查结果：
-- SHOW COLUMNS FROM ob_variable_definition;
-- SHOW COLUMNS FROM ob_task_employee_info;