server {
    listen 80;
    server_name _;

    # Allow multi-GB movie uploads
    client_max_body_size 20g;

    # Long timeouts for streaming + transcode responses
    proxy_read_timeout 3600s;
    proxy_send_timeout 3600s;
    proxy_connect_timeout 60s;

    # gzip static
    gzip on;
    gzip_types text/plain text/css application/javascript application/json image/svg+xml;

    # Reverse proxy /api → backend service on the compose network
    location /api/ {
        proxy_pass         http://backend:8001;
        proxy_http_version 1.1;
        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_set_header   Upgrade $http_upgrade;
        proxy_set_header   Connection "upgrade";

        # Streaming needs unbuffered responses for Range requests
        proxy_buffering    off;
        proxy_request_buffering off;
    }

    # SPA static files with client-side routing fallback
    location / {
        root  /usr/share/nginx/html;
        try_files $uri /index.html;
    }

    # Cache static assets aggressively (hashed filenames from CRA)
    location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff2?)$ {
        root  /usr/share/nginx/html;
        expires 30d;
        add_header Cache-Control "public, immutable";
    }
}