-- 素材列表可见性权威标记
--
-- 专用 init 会先建一条还没有文件的 Material。以前列表每次用
-- preview/zip/assets.none 现场判断空壳，打开创意资产库就会拖慢。
-- 现在把结论写在素材行上：init=true，complete=false，列表只读本列。
--
-- 可重复执行。默认 false，不影响已有可展示素材。

BEGIN;

ALTER TABLE "materials"
  ADD COLUMN IF NOT EXISTS is_incomplete_shell BOOLEAN NOT NULL DEFAULT false;

CREATE INDEX IF NOT EXISTS materials_is_incomplete_shell_idx
  ON "materials"(is_incomplete_shell);

UPDATE "materials"
SET is_incomplete_shell = true
WHERE "deletedAt" IS NULL
  AND "materialType" IN (
    '任务-3D原图',
    '任务-AI原图',
    '任务-实拍原图',
    '任务-视频截图',
    '任务-页面',
    '证书-检测报告',
    '任务-详情'
  )
  AND "previewUrl" = ''
  AND "zipFilePath" = ''
  AND "zipFileName" = ''
  AND COALESCE(cardinality("displayImages"), 0) = 0
  AND (
    task_status IN ('uploading', 'processing', 'failed')
    OR (
      "materialType" = '任务-详情'
      AND task_status IS NULL
      AND task_detail_source_type IN ('实拍', '渲染', 'AI')
      AND task_detail_requester_user_id IS NOT NULL
    )
  );

COMMIT;