Paul Nothaft
61f1d13210
Adds an opt-in lightbox preview tier so guests open photos against an
aspect-preserved ~1920px JPEG (~200–500 KB) instead of the full original
(often 5–12 MB). Originals are still served on Download.
Backend:
- imageProcessor: generatePreviewImage / isPreviewValid / ensurePreviewImage
using fit:'inside' + withoutEnlargement (longEdge 1920, q85, mozjpeg)
- migration 104: photos.preview_path + lightbox_preview_enabled setting
(off by default, JSON-stringified for SQLite/Postgres parity)
- GET /api/gallery/:slug/preview/:photoId — gallery-auth, lazy generation,
ETag based on mtime+photoId+watermarkHash
- preview_url surfaced in the photo response only when the toggle is on
- admin /thumbnails/regenerate-previews mirrors regenerate-thumbnails,
skipping videos
- backup walk + archive cleanup + photo-delete now include previews/
Frontend:
- PhotoLightbox uses photo.preview_url ?? photo.url (null-safe fallback)
- ThumbnailsTab gets a Lightbox Preview Tier card: opt-in toggle +
Regenerate All Previews button (gated until the toggle is on)
- en/de locale strings; nl/pt/ru/fr fall back to en
Tested end-to-end: 11 MB / 4000×3000 source → 985 KB / 1920×1440 preview,
381 ms first call, 7 ms cached, ~91% byte reduction.
Database Migrations
This directory contains database migrations for the PicPeak photo sharing platform.
Directory Structure
/core
Essential migrations that are always run for new deployments. These include:
init.js- Initial database schema creation- Backup service tables (029-035)
- Gallery feedback tables (033)
- Pre-generated watermarks (061)
/legacy
Migrations needed only when upgrading from older versions. New deployments can skip these as the core schema already includes all necessary tables and columns.
For New Deployments
If you're deploying this application for the first time:
- The
initializeDatabase()function insrc/database/db.jswill create all necessary tables - Only migrations in the
/coredirectory will be run - This ensures a clean, optimized database schema
For Existing Deployments
If you're upgrading from an older version:
- All migrations (both core and legacy) will be run in sequence
- The migration system tracks which migrations have been applied
- Only new migrations will be executed
Running Migrations
# Development
npm run migrate
# Production
npm run migrate:prod
Note on Duplicate Migration Numbers
The legacy directory contains renamed duplicates:
014_add_host_name_to_events_duplicate.js(was duplicate of 014)027_add_rate_limit_settings_duplicate.js(was duplicate of 027)
These have been renamed to avoid conflicts while preserving the migration history.