# Configuración NGINX para api.amayo.dev (Backend Node.js)
# Ubicación: /etc/nginx/sites-available/api.amayo.dev

server {
    listen 80;
    listen [::]:80;
    server_name api.amayo.dev;

    # Redirigir HTTP a HTTPS
    return 301 https://$server_name$request_uri;
}

server {
    listen 443 ssl http2;
    listen [::]:443 ssl http2;
    server_name api.amayo.dev;

    # Certificados SSL (generados con certbot)
    ssl_certificate /etc/letsencrypt/live/api.amayo.dev/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/api.amayo.dev/privkey.pem;
    include /etc/letsencrypt/options-ssl-nginx.conf;
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem;

    # Logs
    access_log /var/log/nginx/api.amayo.dev.access.log;
    error_log /var/log/nginx/api.amayo.dev.error.log;

    # Proxy al servidor Node.js en puerto 3000 (el bot ejecuta server.ts)
    location / {
        proxy_pass http://127.0.0.1:3000;
        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_cache_bypass $http_upgrade;

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

    # CORS headers para permitir requests desde el frontend
    add_header Access-Control-Allow-Origin "https://docs.amayo.dev" always;
    add_header Access-Control-Allow-Methods "GET, POST, PUT, DELETE, OPTIONS" always;
    add_header Access-Control-Allow-Headers "Authorization, Content-Type" always;
    add_header Access-Control-Allow-Credentials "true" always;

    # Manejar preflight requests
    if ($request_method = 'OPTIONS') {
        add_header Access-Control-Allow-Origin "https://docs.amayo.dev" always;
        add_header Access-Control-Allow-Methods "GET, POST, PUT, DELETE, OPTIONS" always;
        add_header Access-Control-Allow-Headers "Authorization, Content-Type" always;
        add_header Access-Control-Max-Age 1728000;
        add_header Content-Type 'text/plain; charset=utf-8';
        add_header Content-Length 0;
        return 204;
    }

    # Security headers
    add_header X-Frame-Options "SAMEORIGIN" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header X-XSS-Protection "1; mode=block" always;
}