ColorWalk Upload & Cleanup Implementation Summary (2026-03-24)

Scope Completed

• Unified temp-photo upload behavior across:
  • Check-in dialog upload flow
  • My Photos upload/replace flow
• Added cancelable upload support and leave-page protection during active uploads.
• Added backend compensation and stronger idempotent handling for temp photo binding.
• Added explicit scheduled cleanup automation (GitHub Actions) and cleanup observability.
• Verified current Cloudflare worker schedule status via API.

Cloudflare Verification Findings

• Checked Worker: the-color-walk
• Cloudflare API result for schedules: schedules: [] (no active worker cron schedule found).
• Confirmed cleanup endpoint is callable and functional:
  • POST https://thecolorwalk.com/api/colorwalk/photos/cleanup-temp
  • Returned code=0 during manual test.

Frontend Changes

1) New shared upload session hook

• Added file: src/shared/hooks/use-colorwalk-temp-upload.ts
• New capabilities:
  • Unified upload state machine: processing/uploading/uploaded/error/canceled
  • AbortController cancellation for in-flight uploads
  • beforeunload protection while uploads are in progress
  • Best-effort discard of uploaded temp photos
  • Reusable operations:
    • uploadFiles
    • removeItem
    • cancelAndCleanup
    • discardTempPhotoIds
    • reset

2) Check-in dialog flow migrated to shared hook

• Updated file: src/shared/blocks/colorwalk/color-walk-spin.tsx
• What changed:
  • Removed duplicated per-file temp upload implementation.
  • Replaced local upload state machinery with shared hook state/actions.
  • Close behavior now:
    • Prompts user if upload or complete-submit is in progress
    • Cancels in-flight requests
    • Discards uploaded temp photos
  • Added support display for canceled upload status.
  • beforeunload now protects both:
    • check-in completion in progress
    • upload in progress

3) My Photos flow migrated to shared hook

• Updated file: src/app/[locale]/(landing)/my-color-walk/photos-client.tsx
• What changed:
  • Replaced local temp upload logic with shared hook.
  • Added compensation cleanup if bind step fails after temp upload succeeds.
  • Added upload-in-progress warning in dialog controls.
  • Added close confirmation behavior while uploads are active.

Backend Changes

4) Idempotent-safe temp photo binding improvements

• Updated file: src/shared/models/color_walk.ts
• bindTempPhotosToCheckin improvements:
  • Handles retry safely when temp photos are already bound to the same check-in.
  • Still rejects invalid states (expired, cleaned, or bound to a different check-in).
  • Only inserts newly bindable rows and updates boundAt for newly bound rows.

5) API-level compensation cleanup

• Updated file: src/app/api/colorwalk/checkins/[checkinId]/photos/route.ts
  • On POST failure, performs best-effort discardTempPhotosForUser.
• Updated file: src/app/api/colorwalk/checkin/complete/route.ts
  • On failure, performs best-effort cleanup of provided tempPhotoIds.

6) Cleanup endpoint hardening + observability

• Updated file: src/app/api/colorwalk/photos/cleanup-temp/route.ts
• Changes:
  • In production, cleanup token is required.
  • Added structured cleanup logs:
    • scanned, cleaned, failed count, duration
  • Logs failed item details when present.

Scheduled Cleanup Automation

• Added workflow: .github/workflows/colorwalk-temp-photo-cleanup.yml
• Schedule:
  • Hourly cron: 0 * * * *
• Behavior:
  • Calls cleanup endpoint with token header.
  • Fails workflow if response code != 0.
• Required secrets for this workflow:
  • COLORWALK_APP_URL
  • COLORWALK_CLEANUP_TOKEN

Validation Performed

• pnpm build passed after changes.
• prettier --check passed for all modified/new files.
• pnpm lint could not run due to repo-level ESLint v9 config mismatch (existing project setup issue, not introduced by this change).

Required Post-Deploy Configuration

• Cloudflare Worker env var:
  • COLORWALK_CLEANUP_TOKEN (must be set in production)
• If using GitHub cron workflow:
  • GitHub Actions Secrets:
    • COLORWALK_APP_URL
    • COLORWALK_CLEANUP_TOKEN (same value as Cloudflare env)

Notes

• Upload functionality can be tested before setting cleanup token.
• Without cleanup token in production:
  • cleanup endpoint will reject requests (unauthorized).
  • scheduled cleanup automation will fail until token is configured.