server {
    listen 443 ssl http2;
    server_name mail.example.com;

    ssl_certificate /etc/letsencrypt/live/mail.example.com/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/mail.example.com/privkey.pem;
    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_prefer_server_ciphers off;
    ssl_session_timeout 1d;
    ssl_session_cache shared:SSL:10m;

    client_max_body_size 3m;

    add_header X-Frame-Options "DENY" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header Referrer-Policy "no-referrer" always;
    add_header Permissions-Policy "camera=(), microphone=(), geolocation=()" always;
    add_header Strict-Transport-Security "max-age=63072000; includeSubDomains; preload" always;
    add_header Content-Security-Policy "default-src 'self'; base-uri 'self'; frame-ancestors 'none'; form-action 'self'; object-src 'none'; img-src 'self' data: blob:; style-src 'self' 'unsafe-inline'; font-src 'self' data:; connect-src 'self';" always;

    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 https;
    proxy_set_header Connection "";

    location /api/ {
        proxy_pass http://api:3001/api/;
    }

    location / {
        proxy_pass http://web:5173/;
    }
}

server {
    listen 80;
    server_name mail.example.com;
    return 301 https://$host$request_uri;
}