-- +goose Up

ALTER TABLE admin_pickups
  ADD COLUMN account_source VARCHAR(32) NOT NULL DEFAULT 'internal' COMMENT '账号来源快照: internal站内上传/external_platform_managed外部上传平台代管' AFTER shop_name,
  ADD COLUMN source_channel VARCHAR(32) NOT NULL DEFAULT '' COMMENT '外部上传来源渠道快照' AFTER account_source,
  ADD KEY idx_admin_pickups_account_source (account_source, created_at);

UPDATE admin_pickups AS p
LEFT JOIN (
  SELECT uploads.listing_id, uploads.source_channel
  FROM listing_uploads AS uploads
  INNER JOIN (
    SELECT listing_id, MAX(id) AS upload_id
    FROM listing_uploads
    WHERE listing_id IS NOT NULL
    GROUP BY listing_id
  ) AS latest ON latest.upload_id = uploads.id
) AS lu ON lu.listing_id = p.listing_id
SET p.account_source = CASE
      WHEN lu.listing_id IS NULL THEN 'internal'
      ELSE 'external_platform_managed'
    END,
    p.source_channel = CASE
      WHEN lu.listing_id IS NULL THEN ''
      ELSE COALESCE(lu.source_channel, '')
    END;

-- +goose Down

ALTER TABLE admin_pickups
  DROP KEY idx_admin_pickups_account_source,
  DROP COLUMN source_channel,
  DROP COLUMN account_source;