upstream webapi {
    server didiAI-web-api:51100;
}

server {
    listen 80;
    server_name _;

    # Request body limit
    client_max_body_size 1m;

    # Timeouts
    proxy_connect_timeout 60s;
    proxy_send_timeout 120s;
    proxy_read_timeout 120s;

    # Gzip compression
    gzip on;
    gzip_types application/json text/plain;
    gzip_min_length 256;
    gzip_vary on;

    # Proxy buffering
    proxy_buffering on;
    proxy_buffer_size 4k;
    proxy_buffers 8 8k;

    # Proxy settings
    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_set_header X-Request-ID $request_id;

    # Health check endpoint
    location /health {
        proxy_pass http://webapi/health;
        add_header Cache-Control "no-cache";
    }

    location /ready {
        proxy_pass http://webapi/ready;
        add_header Cache-Control "no-cache";
    }

    # API endpoints
    location / {
        proxy_pass http://webapi;
    }
}