user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log warn;
pid /var/run/nginx.pid;

events {
    worker_connections 1024;
}

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

    log_format main '$remote_addr - $remote_user [$time_local] "$request" '
                    '$status $body_bytes_sent "$http_referer" '
                    '"$http_user_agent"';

    access_log /var/log/nginx/access.log main;

    sendfile on;
    tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout 65;
    types_hash_max_size 2048;

    # Issue #21: Hide server version
    server_tokens off;

    # Gzip compression
    gzip on;
    gzip_vary on;
    gzip_proxied any;
    gzip_comp_level 6;
    gzip_types text/plain text/css application/json application/javascript text/xml application/xml;

    upstream jellyfin {
        server jellyfin:8096;
    }

    server {
        listen 80;
        server_name tv.home.ms;
        return 301 https://$host$request_uri;
    }

    server {
        listen 443 ssl http2;
        server_name tv.home.ms;

        ssl_certificate /etc/nginx/ssl/tv.home.ms.crt;
        ssl_certificate_key /etc/nginx/ssl/tv.home.ms.key;
        ssl_protocols TLSv1.2 TLSv1.3;
        ssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384;
        ssl_prefer_server_ciphers on;
        ssl_session_cache shared:SSL:10m;
        ssl_session_timeout 10m;

        # Issue #14: Security headers
        add_header Content-Security-Policy "default-src 'self' 'unsafe-inline' 'unsafe-eval' data: blob:; img-src 'self' data: blob:; media-src 'self' data: blob:; frame-src 'self'; connect-src 'self' wss: ws:;" always;
        add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always;
        add_header X-Frame-Options "SAMEORIGIN" always;
        add_header X-Content-Type-Options "nosniff" always;
        add_header X-XSS-Protection "1; mode=block" always;
        add_header Referrer-Policy "strict-origin-when-cross-origin" always;
        add_header Permissions-Policy "camera=(), microphone=(), geolocation=()" always;

        # Issue #21: Hide server version (also via more_headers if available)
        # Issue #22: Remove response time header
        more_clear_headers Server X-Response-Time-Ms X-Powered-By;

        location / {
            proxy_pass http://jellyfin;
            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 buffer settings for large video files
            proxy_buffering off;
            proxy_request_buffering off;

            # Timeouts
            proxy_connect_timeout 60s;
            proxy_send_timeout 600s;
            proxy_read_timeout 600s;
        }

        # WebSockets for Jellyfin
        location /socket {
            proxy_pass http://jellyfin;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection "upgrade";
            proxy_set_header Host $host;
        }
    }
}