server {
    listen 80;
    server_name localhost;

    # Increase body size limit for large enrollment image uploads
    client_max_body_size 50M;

    # Proxy API requests to backend
    location /api {
        proxy_pass http://backend:8000;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_cache_bypass $http_upgrade;
    }

    # Proxy OpenAPI Documentation to backend
    location /docs {
        proxy_pass http://backend:8000/docs;
        proxy_set_header Host $host;
    }

    location /openapi.json {
        proxy_pass http://backend:8000/openapi.json;
        proxy_set_header Host $host;
    }

    location /redoc {
        proxy_pass http://backend:8000/redoc;
        proxy_set_header Host $host;
    }

    # Proxy all other routes to Next.js frontend
    location / {
        proxy_pass http://frontend:3000;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_cache_bypass $http_upgrade;
    }
}