-- 后台用户启用/禁用（可重复执行）。
-- 表名：fk_user（Fake RBAC）。默认启用；禁用后拒绝账号密码登录与仓配 Token 换取。

SET @db := DATABASE();

SET @exists := (
  SELECT COUNT(1)
  FROM information_schema.COLUMNS
  WHERE TABLE_SCHEMA = @db
    AND TABLE_NAME = 'fk_user'
    AND COLUMN_NAME = 'IsEnabled'
);

SET @sql := IF(
  @exists = 0,
  'ALTER TABLE `fk_user` ADD COLUMN `IsEnabled` TINYINT(1) NOT NULL DEFAULT 1 COMMENT ''是否启用：1启用 0禁用'' AFTER `IsDeleted`',
  'SELECT ''fk_user.IsEnabled already exists'' AS info'
);

PREPARE stmt FROM @sql;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;

UPDATE `fk_user` SET `IsEnabled` = 1 WHERE `IsEnabled` IS NULL;