upstream web_app {
    server web:3000;
}

upstream admin_app {
    server admin:3000;
}

server {
    listen 80;
    server_name _;

    client_max_body_size 50M;

    # Web app (default)
    location / {
        proxy_pass http://web_app;
        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;
    }

    # Admin app
    location /admin/ {
        rewrite ^/admin/(.*) /$1 break;
        proxy_pass http://admin_app;
        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;
    }

    # Health check
    location /health {
        access_log off;
        return 200 'ok';
        add_header Content-Type text/plain;
    }
}