server {
    listen 443 ssl http2;
    server_name longde.cloud www.longde.cloud;

    ssl_certificate /etc/letsencrypt/live/longde.cloud/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/longde.cloud/privkey.pem;
    ssl_trusted_certificate /etc/letsencrypt/live/longde.cloud/chain.pem;

    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 off;
    ssl_session_cache shared:SSL:10m;
    ssl_session_timeout 1d;

    root /var/www/longde.cloud;
    index index.html;

    # Gzip
    gzip on;
    gzip_vary on;
    gzip_comp_level 5;
    gzip_min_length 256;
    gzip_types application/json text/plain text/css application/javascript image/svg+xml;

    # API proxy to NestJS backend (Docker container on port 3001)
    location /api/ {
        proxy_pass http://localhost:3001/api/;
        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_read_timeout 90s;
        proxy_connect_timeout 10s;
        client_max_body_size 10m;
    }

    # Swagger docs
    location /api-docs {
        proxy_pass http://localhost:3001/api-docs;
        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;
    }

    location /api-docs-json {
        proxy_pass http://localhost:3001/api-docs-json;
        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;
    }

    # Frontend — SPA fallback
    location / {
        try_files $uri $uri/ /index.html;
    }
}