events {
    worker_connections 1024;
}

http {
    include /etc/nginx/mime.types;
    default_type application/octet-stream;

    server {
        listen 80;
        server_name localhost;
        root /usr/share/nginx/html/public;
        index index.html;
        
        client_max_body_size 60M;

        # Gzip compression
        gzip on;
        gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;

        # Static files - CSS
        location /css/ {
            alias /usr/share/nginx/html/css/;
            expires 1y;
            add_header Cache-Control "public, immutable";
        }

        # Static files - JS
        location /src/ {
            alias /usr/share/nginx/html/src/;
            add_header Cache-Control "no-cache, no-store, must-revalidate";
        }

        # SPA routing - all routes go to index.html
        location / {
            try_files $uri $uri/ /index.html;
        }

        # API proxy to backend
        location /api/ {
            proxy_pass http://backend:8000;
            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;
        }

        # Uploaded files proxy to backend
        location /uploads/ {
            proxy_pass http://backend:8000;
            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;
            
            # Cache uploaded files
            expires 1y;
            add_header Cache-Control "public, immutable";
        }

        # Other static files cache (excluding .css and .js which are handled above)
        location ~* \.(png|jpg|jpeg|gif|ico|svg)$ {
            expires 1y;
            add_header Cache-Control "public, immutable";
        }
    }
}