-- 统一通知中心切换前，旧 work_notice 催办任务可能在零次投递时就把报废单标记为已催办。
-- 保留旧任务用于审计，但仅对“仍待审批、从未尝试/发送、且尚无新通道任务”的记录开放一次重新催办。
START TRANSACTION;

UPDATE `disposal_record` AS `disposal`
SET `disposal`.`reminded_at` = NULL
WHERE `disposal`.`status` = 'pending'
  AND `disposal`.`reminded_at` IS NOT NULL
  AND EXISTS (
    SELECT 1
    FROM `dingtalk_delivery` AS `legacy_delivery`
    WHERE `legacy_delivery`.`business_type` = 'disposal'
      AND `legacy_delivery`.`business_id` = `disposal`.`id`
      AND `legacy_delivery`.`event_type` = 'disposal_overdue_reminder'
      AND `legacy_delivery`.`provider_type` = 'work_notice'
      AND `legacy_delivery`.`status` IN ('pending', 'retrying', 'sending')
      AND `legacy_delivery`.`attempt_count` = 0
      AND `legacy_delivery`.`dingtalk_task_id` IS NULL
      AND `legacy_delivery`.`sent_at` IS NULL
      AND `legacy_delivery`.`read_at` IS NULL
  )
  AND NOT EXISTS (
    SELECT 1
    FROM `dingtalk_delivery` AS `current_delivery`
    WHERE `current_delivery`.`business_type` = 'disposal'
      AND `current_delivery`.`business_id` = `disposal`.`id`
      AND `current_delivery`.`event_type` = 'disposal_overdue_reminder'
      AND `current_delivery`.`provider_type` = 'notification_center'
  );

UPDATE `dingtalk_delivery` AS `legacy_delivery`
JOIN `disposal_record` AS `disposal`
  ON `disposal`.`id` = `legacy_delivery`.`business_id`
LEFT JOIN `dingtalk_delivery` AS `current_delivery`
  ON `current_delivery`.`business_type` = 'disposal'
  AND `current_delivery`.`business_id` = `legacy_delivery`.`business_id`
  AND `current_delivery`.`event_type` = 'disposal_overdue_reminder'
  AND `current_delivery`.`provider_type` = 'notification_center'
SET `legacy_delivery`.`status` = 'failed',
    `legacy_delivery`.`next_attempt_at` = NOW(3),
    `legacy_delivery`.`lease_owner` = NULL,
    `legacy_delivery`.`lease_expires_at` = NULL,
    `legacy_delivery`.`last_error_code` = 'LEGACY_CHANNEL_RETIRED',
    `legacy_delivery`.`last_error_message` = '历史工作通知通道未实际投递，已开放由统一通知中心重新生成',
    `legacy_delivery`.`failure_notified_at` = NOW(3)
WHERE `legacy_delivery`.`business_type` = 'disposal'
  AND `legacy_delivery`.`event_type` = 'disposal_overdue_reminder'
  AND `legacy_delivery`.`provider_type` = 'work_notice'
  AND `legacy_delivery`.`status` IN ('pending', 'retrying', 'sending')
  AND `legacy_delivery`.`attempt_count` = 0
  AND `legacy_delivery`.`dingtalk_task_id` IS NULL
  AND `legacy_delivery`.`sent_at` IS NULL
  AND `legacy_delivery`.`read_at` IS NULL
  AND `disposal`.`status` = 'pending'
  AND `current_delivery`.`id` IS NULL;

COMMIT;