map $http_upgrade $connection_upgrade {
    default upgrade;
    ''      close;
}

# Redirect all HTTP to HTTPS
server {
    listen 80;
    listen [::]:80;
    server_name rss.meson.one;

    location / {
        return 301 https://$host$request_uri;
    }
}

server {
    # HTTP/2 over TCP
    listen 443      ssl;
    listen [::]:443 ssl;

    # HTTP/3 over QUIC/UDP
    listen 443      quic;
    listen [::]:443 quic;

    http2 on;
    http3 on;

    add_header Alt-Svc 'h3=":443"; ma=86400' always;

    server_name rss.meson.one;
    root        /home/www-data/rss.meson.one;

    include /etc/letsencrypt/options-ssl-nginx.conf;
    ssl_certificate     /etc/letsencrypt/live/rss.meson.one/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/rss.meson.one/privkey.pem;
    ssl_trusted_certificate /etc/letsencrypt/live/rss.meson.one/chain.pem;

    # Security headers
    add_header Strict-Transport-Security "max-age=63072000; includeSubDomains; preload" always;
    add_header X-Frame-Options "SAMEORIGIN" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header Referrer-Policy "strict-origin-when-cross-origin" always;
    add_header X-XSS-Protection "1; mode=block" always;

    # Logging
    access_log /var/log/nginx/rss.meson.one.log combined if=$loggable;
    error_log  /var/log/nginx/_error_rss.meson.one.log warn;

    # Gzip for the Vue SPA assets and JSON API responses
    gzip on;
    gzip_vary on;
    gzip_comp_level 5;
    gzip_min_length 256;
    gzip_types application/javascript application/json text/css text/plain
               application/xml text/xml image/svg+xml font/woff2;

    # Allow larger bodies (OPML imports, avatar uploads, etc.)
    client_max_body_size 20m;

    # --- Fever / Google Reader API + MCP endpoint: no buffering, longer timeouts ---
    location ~ ^/(api/fever|api/greader|mcp) {
        proxy_pass http://127.0.0.1:3030;
        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_buffering off;
        proxy_read_timeout 300s;
        proxy_send_timeout 300s;
    }

    # --- Everything else: main app + REST API ---
    location / {
    proxy_pass http://127.0.0.1:3030;
    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;

    # Dynamic WebSocket support (only upgrades when client requests it)
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection $connection_upgrade;

    proxy_connect_timeout 60s;
    proxy_read_timeout 60s;
    proxy_send_timeout 60s;

    proxy_buffer_size 16k;
    proxy_buffers 8 16k;
    proxy_busy_buffers_size 32k;

    }

    # Deny access to hidden files
    location ~ /\.(?!well-known) {
        deny all;
    }
}