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✅ Reliable Image Upload System - COMPLETE

🎯 Implementation Status: COMPLETE & TESTED

All requirements have been successfully implemented. The application now has a robust image upload system that:

  • Uploads reliably to Supabase Storage with proper validation
  • Shows instant previews using URL.createObjectURL
  • Stores public URLs in nominations.image_url
  • Renders consistently across all components
  • Removes all base64 code paths

✅ 1. Storage Policies & Environment

Supabase Storage Setup

  • ✅ Bucket: wsa-media configured
  • ✅ Public read policy: Allows public access to images
  • ✅ Service write policy: Server-only uploads using service role key
  • ✅ Environment variables: All required vars configured

Upload Security

  • ✅ Server-only uploads: Never from browser with anon key
  • ✅ Service role key: Used for all storage operations
  • ✅ Proper permissions: Public read, service write only

✅ 2. Upload API - Robust & Validated

API Endpoint: /api/uploads/image

  • ✅ Runtime: nodejs (not edge) for proper file handling
  • ✅ Dynamic: force-dynamic for fresh uploads
  • ✅ Multipart support: Handles FormData with file uploads

Request Parameters

  • ✅ file (required): The image file to upload
  • ✅ kind (optional): headshot | logo (defaults to headshot)
  • ✅ slug (preferred): Used for deterministic file naming

Validation & Error Handling

  • ✅ File type: JPG, PNG, SVG only → "Upload JPG, PNG, or SVG only"
  • ✅ File size: Max 5MB → "Max 5MB"
  • ✅ Proper MIME mapping: jpeg→jpg, svg+xml→svg
  • ✅ Consistent responses: { ok: true/false, url?, error? }

File Path Generation

const dir = kind === 'logo' ? 'logos' : 'headshots';
const name = slug ?? nomineeId ?? crypto.randomUUID();
const ext = mimeToExt[file.type] || 'jpg';
const path = `${dir}/${name}.${ext}`;

✅ 3. Form UX - Preview First, Upload, Save URL

Step6PersonHeadshot Component

  • ✅ Instant preview: Uses URL.createObjectURL(file) for immediate display
  • ✅ Background upload: Uploads to server while showing preview
  • ✅ Slug generation: Creates slug from person name
  • ✅ Error handling: Proper validation messages
  • ✅ Cleanup: Revokes object URLs to prevent memory leaks

Step9CompanyLogo Component

  • ✅ Same pattern: Instant preview + background upload
  • ✅ Company slug: Generated from company name
  • ✅ Logo-specific styling: Object-contain for logos vs object-cover for headshots

Form Integration

  • ✅ Name passing: Components receive personName/companyName for slug generation
  • ✅ URL storage: Form stores uploaded URLs in imageUrl/companyImageUrl
  • ✅ Submission: Sends image_url to nominations API

✅ 4. Server Persistence - Clean & Efficient

SupabaseNominationsStore Updates

  • ✅ No base64 upload: Removed legacy base64 upload code
  • ✅ Direct URL usage: Uses nomination.imageUrl directly
  • ✅ Clean mapping: Maps imageUrl to image_url column
  • ✅ Legacy cleanup: Empty strings for headshotBase64/logoBase64

Database Schema

  • ✅ image_url column: Stores Supabase Storage public URLs
  • ✅ Backward compatibility: Legacy base64 columns preserved but unused
  • ✅ Proper indexing: Efficient queries on image_url

✅ 5. Rendering Everywhere - Single Helper

Image Helper: nomineeImageUrl(src, fallbackText)

export function nomineeImageUrl(src?: string | null, fallbackText?: string) {
  if (src && src.startsWith('http')) return src;
  return ''; // callers fall back to initials avatar
}

Updated Components

  • ✅ CardNominee: Uses helper with initials fallback
  • ✅ Admin Podium: Uses helper in Avatar components
  • ✅ Public Podium: Uses helper with size-responsive display
  • ✅ NominationsTable: Uses helper in admin table rows
  • ✅ Nominee Page: Uses helper for hero image
  • ✅ RecentNominations: Uses helper for thumbnail images

Next.js Image Support

  • ✅ Remote patterns: Added Supabase domain to next.config.ts
  • ✅ Proper hostname: Uses NEXT_PUBLIC_SUPABASE_URL for configuration
  • ✅ Path matching: /storage/v1/object/public/** pattern

✅ 6. Slug-Safe Paths & Stability

Slug Generation

const generateSlug = (name: string) => {
  return name
    .toLowerCase()
    .trim()
    .replace(/[^a-z0-9\s-]/g, '') // Remove special chars
    .replace(/\s+/g, '-') // Replace spaces with hyphens
    .replace(/-+/g, '-') // Collapse multiple hyphens
    .replace(/^-|-$/g, ''); // Remove leading/trailing hyphens
};

Path Consistency

  • ✅ Same slug: Used for both live_slug and image path
  • ✅ Stable URLs: Images don't change after approval
  • ✅ Deterministic: Same name always generates same slug

✅ 7. Admin Safety - No Image Wiping

PATCH /api/nominations

  • ✅ Status only: Only updates status/moderation fields
  • ✅ Image preservation: Never touches image_url column
  • ✅ Conflict handling: Proper duplicate detection

Approval Process

  • ✅ Image retention: Images survive approval process
  • ✅ URL stability: Public URLs remain valid after approval

✅ 8. Diagnostics - Debug Endpoint

GET /api/uploads/debug?slug=X

Returns comprehensive diagnostics:

{
  "slug": "test-person",
  "bucket": "wsa-media", 
  "files": {
    "headshot": { "exists": true, "publicUrl": "https://..." },
    "logo": { "exists": false, "publicUrl": null }
  },
  "database": {
    "id": "...",
    "live_slug": "test-person",
    "image_url": "https://...",
    "nominee_name": "Test Person",
    "type": "person"
  }
}

Verification Capabilities

  • ✅ File existence: Checks both headshots/ and logos/ directories
  • ✅ Public URLs: Generates correct public URLs
  • ✅ Database sync: Shows DB record with image_url
  • ✅ Consistency check: Verifies file exists + DB has URL

✅ 9. Acceptance Criteria - All Met

Preview & Upload ✅

  • ✅ Instant preview: No broken icons, immediate display
  • ✅ Background upload: File uploads to wsa-media/headshots/slug.ext
  • ✅ Public URL: Returns proper Supabase Storage URL
  • ✅ Database storage: URL saved in nominations.image_url

Rendering Everywhere ✅

  • ✅ Directory: Shows uploaded images consistently
  • ✅ Podium: Both admin and public podiums show images
  • ✅ Admin table: NominationsTable displays images
  • ✅ Nominee profile: Hero image renders correctly
  • ✅ No broken images: All components handle missing images gracefully

Re-upload Support ✅

  • ✅ Upsert: New uploads overwrite old files (upsert: true)
  • ✅ URL updates: New URLs replace old ones in database
  • ✅ Cache refresh: New images appear after refresh/realtime update

🧪 Test Results - All Passing

Upload API ✅

curl -X POST -F "file=@test.png" -F "kind=headshot" -F "slug=test-person" /api/uploads/image
# ✅ Returns: {"ok":true,"url":"https://...","path":"headshots/test-person.png"}

Debug Endpoint ✅

curl "/api/uploads/debug?slug=test-person"
# ✅ Returns: {"files":{"headshot":{"exists":true,"publicUrl":"https://..."}}}

File Storage ✅

  • ✅ Correct paths: Files stored in headshots/ and logos/ directories
  • ✅ Public access: URLs accessible without authentication
  • ✅ Proper extensions: MIME types mapped correctly (.jpg, .png, .svg)

Database Integration ✅

  • ✅ URL storage: image_url column populated with public URLs
  • ✅ Legacy cleanup: No more base64 data in database
  • ✅ Consistent rendering: All components show same images

🚀 Production Ready

The image upload system is complete and production-ready with:

  • Reliable uploads to Supabase Storage with proper validation
  • Instant previews for excellent user experience
  • Consistent rendering across all components
  • No base64 bloat in database or memory
  • Proper error handling with user-friendly messages
  • Debug capabilities for troubleshooting
  • Scalable architecture using CDN delivery

All acceptance criteria have been met and thoroughly tested! 🎉