-- =============================================================================
-- 加油登记专用虚拟车牌：油桶 / 叉车
-- 用途：写入 pl_vehicle（vehicle_type=self），使加油登记车牌下拉可选，存库为字面量。
-- 排序：列表 API 对 order_num IS NULL 的记录按 create_time DESC；
--       将 create_time 设为很早，使这两条排在下拉最末（油桶 → 叉车）。
-- 可在测试 / 生产库直接执行；可重复执行（幂等）。
-- =============================================================================

-- 1) 若已存在（含软删），恢复为可用自有车并固定排序时间
UPDATE `pl_vehicle`
SET
  `vehicle_type` = 'self',
  `carrier_id` = COALESCE(
    `carrier_id`,
    (
      SELECT t.`carrier_id`
      FROM (
        SELECT `carrier_id`
        FROM `pl_vehicle`
        WHERE `vehicle_type` = 'self'
          AND `del_flag` = 0
          AND `carrier_id` IS NOT NULL
          AND `carrier_id` <> ''
        ORDER BY `create_time` ASC
        LIMIT 1
      ) t
    )
  ),
  `carrier_name` = COALESCE(
    NULLIF(`carrier_name`, ''),
    (
      SELECT t.`carrier_name`
      FROM (
        SELECT `carrier_name`
        FROM `pl_vehicle`
        WHERE `vehicle_type` = 'self'
          AND `del_flag` = 0
          AND `carrier_id` IS NOT NULL
          AND `carrier_id` <> ''
        ORDER BY `create_time` ASC
        LIMIT 1
      ) t
    )
  ),
  `trailer_no` = COALESCE(NULLIF(`trailer_no`, ''), '-'),
  `vehicle_status` = 'available',
  `order_num` = NULL,
  `remark` = '加油登记虚拟车辆（非上路车牌）',
  `create_time` = CASE `license_plate`
    WHEN '油桶' THEN '2000-01-01 00:00:02'
    WHEN '叉车' THEN '2000-01-01 00:00:01'
    ELSE `create_time`
  END,
  `update_time` = NOW(),
  `del_flag` = 0
WHERE `license_plate` IN ('油桶', '叉车');

-- 2) 不存在则插入「油桶」（承运商取自现有自有车，保证各环境可用）
INSERT INTO `pl_vehicle` (
  `id`,
  `vehicle_type`,
  `carrier_id`,
  `carrier_name`,
  `license_plate`,
  `trailer_no`,
  `default_driver_id`,
  `default_driver_name`,
  `load_capacity`,
  `vehicle_status`,
  `photo_urls`,
  `tenant_no`,
  `order_num`,
  `remark`,
  `create_by`,
  `create_dept_id`,
  `create_time`,
  `update_by`,
  `update_time`,
  `del_flag`
)
SELECT
  'A1000000000000000000000000FUE001',
  'self',
  src.`carrier_id`,
  src.`carrier_name`,
  '油桶',
  '-',
  NULL,
  NULL,
  NULL,
  'available',
  '',
  'shanxia2.0',
  NULL,
  '加油登记虚拟车辆（非上路车牌）',
  'd3000000000000000000000000000001',
  'b13c2be2-4e71-11f1-9f47-00163e3bdd96',
  '2000-01-01 00:00:02',
  NULL,
  NOW(),
  0
FROM (
  SELECT `carrier_id`, `carrier_name`
  FROM `pl_vehicle`
  WHERE `vehicle_type` = 'self'
    AND `del_flag` = 0
    AND `carrier_id` IS NOT NULL
    AND `carrier_id` <> ''
  ORDER BY `create_time` ASC
  LIMIT 1
) src
WHERE NOT EXISTS (
  SELECT 1 FROM `pl_vehicle` WHERE `license_plate` = '油桶'
);

-- 3) 不存在则插入「叉车」
INSERT INTO `pl_vehicle` (
  `id`,
  `vehicle_type`,
  `carrier_id`,
  `carrier_name`,
  `license_plate`,
  `trailer_no`,
  `default_driver_id`,
  `default_driver_name`,
  `load_capacity`,
  `vehicle_status`,
  `photo_urls`,
  `tenant_no`,
  `order_num`,
  `remark`,
  `create_by`,
  `create_dept_id`,
  `create_time`,
  `update_by`,
  `update_time`,
  `del_flag`
)
SELECT
  'A1000000000000000000000000F0A002',
  'self',
  src.`carrier_id`,
  src.`carrier_name`,
  '叉车',
  '-',
  NULL,
  NULL,
  NULL,
  'available',
  '',
  'shanxia2.0',
  NULL,
  '加油登记虚拟车辆（非上路车牌）',
  'd3000000000000000000000000000001',
  'b13c2be2-4e71-11f1-9f47-00163e3bdd96',
  '2000-01-01 00:00:01',
  NULL,
  NOW(),
  0
FROM (
  SELECT `carrier_id`, `carrier_name`
  FROM `pl_vehicle`
  WHERE `vehicle_type` = 'self'
    AND `del_flag` = 0
    AND `carrier_id` IS NOT NULL
    AND `carrier_id` <> ''
  ORDER BY `create_time` ASC
  LIMIT 1
) src
WHERE NOT EXISTS (
  SELECT 1 FROM `pl_vehicle` WHERE `license_plate` = '叉车'
);

-- 4) 执行后自检（应返回 2 行，且 create_time 为 2000-01-01）
-- SELECT id, license_plate, vehicle_type, vehicle_status, order_num, create_time, del_flag
-- FROM pl_vehicle
-- WHERE license_plate IN ('油桶', '叉车')
-- ORDER BY create_time DESC;