-- =============================================================================
-- migrate_order_operation_log.sql
-- 运单操作日志表（业务动作 + 字段级 before/after diff）
-- 可重复执行
-- =============================================================================
SET @db := DATABASE();

SET @tbl := (
  SELECT COUNT(1)
  FROM information_schema.TABLES
  WHERE TABLE_SCHEMA = @db
    AND TABLE_NAME = 't_order_operation_log'
);
SET @sql := IF(
  @tbl = 0,
  'CREATE TABLE `t_order_operation_log` (
    `Id` INT NOT NULL AUTO_INCREMENT COMMENT ''主键'',
    `OrderId` INT NOT NULL COMMENT ''运单Id'',
    `ServiceNo` VARCHAR(64) NULL COMMENT ''运单号冗余'',
    `Action` VARCHAR(32) NOT NULL COMMENT ''动作码 editBasic/editWeight/recalcReceivable/recalcPayable/reallocate/bindSnapshotVersions/updateAdditionalServices/addFee/pay/preDeclare/downstreamForward/print'',
    `ActionName` VARCHAR(64) NOT NULL COMMENT ''动作中文名'',
    `OperatorId` INT NOT NULL DEFAULT 0 COMMENT ''操作人用户Id'',
    `OperatorName` VARCHAR(64) NULL COMMENT ''操作人展示名'',
    `OperatorType` VARCHAR(16) NOT NULL DEFAULT ''staff'' COMMENT ''staff/customer/system/openapi'',
    `Source` VARCHAR(16) NOT NULL DEFAULT ''pc'' COMMENT ''pc/h5/openapi/job'',
    `ChangesJson` JSON NULL COMMENT ''字段 diff 数组 [{path,label,before,after}]'',
    `Remark` VARCHAR(512) NULL COMMENT ''补充说明'',
    `IsDeleted` TINYINT NOT NULL DEFAULT 0 COMMENT ''软删除：0-否，1-是'',
    `ConcurrencyStamp` CHAR(36) NOT NULL DEFAULT (UUID()) COMMENT ''并发戳'',
    `CreateUserId` INT NOT NULL DEFAULT 0 COMMENT ''创建人'',
    `CreateTime` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT ''创建时间'',
    `UpdateUserId` INT NULL COMMENT ''更新人'',
    `UpdateTime` DATETIME NULL COMMENT ''更新时间'',
    PRIMARY KEY (`Id`),
    KEY `idx_ool_order_time` (`OrderId`, `CreateTime`),
    KEY `idx_ool_service_no` (`ServiceNo`)
  ) COMMENT=''运单操作日志''',
  'SELECT ''t_order_operation_log already exists'' AS info'
);
PREPARE stmt FROM @sql;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;