# Nginx configuration for ZMB Webui
# Reverse proxy for both backend (FastAPI :8000) and frontend (Next.js :3000)

upstream backend {
    server localhost:8000;
}

upstream frontend {
    server localhost:3000;
}

server {
    listen 9090 http2;
    server_name _;

    # 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;
    add_header Referrer-Policy "no-referrer-when-downgrade" always;

    # Compression
    gzip on;
    gzip_min_length 1000;
    gzip_types text/plain text/css text/xml text/javascript application/x-javascript application/xml+rss application/json;

    # API routes → Backend
    location /api/ {
        proxy_pass http://backend;
        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;

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

    # Health check
    location /health {
        proxy_pass http://backend;
        proxy_http_version 1.1;
        access_log off;
    }

    # Frontend (Next.js)
    location / {
        proxy_pass http://frontend;
        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;

        # Cache static assets
        location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2|ttf|eot)$ {
            proxy_pass http://frontend;
            proxy_cache_valid 200 7d;
            add_header Cache-Control "public, max-age=604800, immutable";
        }
    }

    # Logging
    access_log /var/log/nginx/zmb-webui-access.log combined;
    error_log /var/log/nginx/zmb-webui-error.log warn;
}