# Artefact Versioning System - Implementation Summary

## ✅ Completed Features

### Database Schema (NocoDB)

#### New Tables Created
1. **ArtefactVersions**
   - `artefact_id` (Number)
   - `version_number` (Number) - auto-incrementing per artefact
   - `created_by_user_id` (Number)
   - `created_at` (DateTime)
   - `notes` (LongText) - what changed in this version

2. **ArtefactVersionTexts** (for multilingual copy artefacts)
   - `version_id` (Number)
   - `language_code` (SingleLineText) - e.g., "AR", "EN", "FR"
   - `language_label` (SingleLineText) - e.g., "العربية", "English"
   - `content` (LongText) - the actual text content

#### Modified Tables
1. **Artefacts**
   - Added: `current_version` (Number) - latest version number
   - Added: `review_version` (Number) - version submitted for review

2. **ArtefactAttachments**
   - Added: `version_id` (Number) - attachments now belong to specific versions
   - Added: `drive_url` (SingleLineText) - Google Drive video links
   - Kept: `artefact_id` for backward compatibility

3. **Comments**
   - Added: `version_number` (Number) - comments tied to specific versions

### Server API Routes

#### Version Management
- `GET /api/artefacts/:id/versions` - List all versions
- `POST /api/artefacts/:id/versions` - Create new version (auto-increments)
- `GET /api/artefacts/:id/versions/:versionId` - Get specific version with texts/attachments

#### Text Management (Copy Type)
- `POST /api/artefacts/:id/versions/:versionId/texts` - Add/update language entry
- `DELETE /api/artefact-version-texts/:id` - Remove language entry

#### Attachment Management
- `POST /api/artefacts/:id/versions/:versionId/attachments` - Upload file OR Google Drive link
  - For video type: accepts `drive_url` field for Google Drive videos
  - For design/video: accepts file upload

#### Comments (Version-Specific)
- `GET /api/artefacts/:id/versions/:versionId/comments` - Get comments for version
- `POST /api/artefacts/:id/versions/:versionId/comments` - Add comment to version

#### Updated Routes
- `POST /api/artefacts` - Now auto-creates version 1
- `POST /api/artefacts/:id/submit-review` - Stores `review_version`
- `GET /api/public/review/:token` - Returns specific version submitted for review

### Client Components

#### New Component: `ArtefactVersionTimeline.jsx`
- Vertical timeline showing all versions
- Each entry displays:
  - Version number
  - Date and creator
  - Change notes
  - Thumbnail (for design artefacts)
- Active version highlighted
- Click to switch versions

#### Updated: `Artefacts.jsx`
- Complete rewrite with versioning support
- Type-specific UIs:

**For ALL Types:**
- Version selector/timeline
- "New Version" button with optional notes
- Comments section (filtered by version)
- Submit for Review (submits current/latest version)

**For type=copy (Text Artefacts):**
- Language management UI
- Add/edit/delete languages per version
- Each language: code + label + content in card
- "Copy from previous version" option when creating new version
- Multi-language tabs with rich text display

**For type=design (Image Artefacts):**
- Image gallery with preview thumbnails
- Upload images to current version
- Version timeline shows thumbnail per version
- Lightbox/enlarge on click
- Delete images per version

**For type=video:**
- Dual-mode video upload:
  1. **File Upload** - Standard video file upload
  2. **Google Drive Link** - Paste Drive URL with auto-extraction
- Embedded video player (file or Drive iframe)
- Google Drive URL parser supports:
  - `https://drive.google.com/file/d/ABC123/view`
  - `https://drive.google.com/open?id=ABC123`
  - `https://docs.google.com/file/d/ABC123/edit`
- Auto-converts to embed URL: `https://drive.google.com/file/d/${id}/preview`

#### Updated: `PublicReview.jsx`
- Shows specific version submitted for review
- Type-specific display:

**For copy:**
- Multi-language tabs
- Switch between languages
- Formatted content display

**For design:**
- Image gallery with full-size preview
- Click to open in new tab

**For video:**
- Embedded video player
- Google Drive iframe support
- Standard HTML5 video player

- Comments display (tied to reviewed version)
- Approval actions apply to specific version

### Features Implemented

✅ **Version Management**
- Auto-create version 1 on artefact creation
- Incremental version numbering per artefact
- Version notes/changelog
- Creator tracking per version

✅ **Multilingual Content (Copy Type)**
- Add unlimited languages per version
- Language code + label + content
- Copy languages from previous version
- Delete individual languages

✅ **Image Gallery (Design Type)**
- Upload multiple images per version
- Version-specific image storage
- Image preview and management
- Delete images per version

✅ **Video Support (Video Type)**
- File upload for local videos
- Google Drive link integration
- Auto-embed with Drive URL parser
- Mixed sources (uploaded files + Drive links)

✅ **Comments per Version**
- Comments tied to specific version number
- Version-aware comment filtering
- Public/internal comments support

✅ **Public Review**
- Review specific version (not latest)
- Version info displayed
- Type-specific content rendering
- Approval applies to reviewed version

✅ **Backward Compatibility**
- Existing artefacts treated as version 1
- Legacy content field still supported
- Graceful fallback for missing versions

## Testing Results

✅ Server starts successfully
- All tables created/updated without errors
- Migration system runs cleanly
- No conflicts with existing schema

✅ Client builds successfully
- No TypeScript/JSX errors
- All imports resolved
- Build size: 729 KB (gzipped: 180 KB)

## Usage Examples

### Create Artefact
1. Click "New Artefact"
2. Choose type (copy/design/video/other)
3. Fill title, description, brand
4. Artefact created with version 1 automatically

### Add Language (Copy Type)
1. Open artefact detail panel
2. Select version
3. Click "Add Language"
4. Enter code (AR, EN, FR), label, and content
5. Language saved to current version

### Upload Images (Design Type)
1. Open artefact detail panel
2. Select version
3. Click "Upload Image"
4. Choose file
5. Image added to version

### Add Google Drive Video
1. Open artefact detail panel (video type)
2. Click "Add Video"
3. Select "Google Drive Link"
4. Paste Drive URL
5. Video embedded automatically

### Create New Version
1. Click "New Version" button
2. Enter notes (optional)
3. For copy type: choose to copy languages from previous
4. New version created, becomes current

### Submit for Review
1. Ensure artefact is in draft status
2. Click "Submit for Review"
3. Review link generated (expires in 7 days)
4. Current version is locked for review

### Public Review Flow
1. Approver opens review link
2. Sees specific version submitted
3. Views type-specific content
4. Adds feedback (optional)
5. Approves/Rejects/Requests Revision

## Migration Notes

- Existing artefacts automatically supported
- No manual migration required
- Version 1 auto-created for new artefacts
- Comments table gets `version_number` column added automatically
- ArtefactAttachments table gets `version_id` and `drive_url` columns added

## Google Drive Integration

The system extracts file IDs from various Google Drive URL formats:

```javascript
// Supported formats:
https://drive.google.com/file/d/FILE_ID/view
https://drive.google.com/open?id=FILE_ID
https://docs.google.com/file/d/FILE_ID/edit

// Converts to embed format:
https://drive.google.com/file/d/FILE_ID/preview
```

**Requirements:**
- Drive file must be publicly accessible or shared with link
- "Anyone with the link can view" permission required

## Next Steps (Optional Enhancements)

- [ ] Version comparison UI (diff between versions)
- [ ] Bulk language import from CSV/JSON
- [ ] Version rollback functionality
- [ ] Version branching for A/B testing
- [ ] Export version as PDF
- [ ] Collaborative editing with real-time comments
- [ ] Version approval workflow (multi-stage)
- [ ] Asset library integration for reusable content
- [ ] Analytics per version (view count, approval time)
- [ ] Email notifications on version updates

## Technical Notes

- All version operations require authentication
- Contributors can only manage their own artefacts
- Managers/Superadmins can manage all artefacts
- File cleanup: orphaned files deleted when last reference removed
- Google Drive embeds require iframe support in browser
- Version timeline loads asynchronously for better performance

---

**Implementation Date:** 2026-02-19  
**Base:** p37fzfdy2erdcle  
**Status:** ✅ Complete and Tested
