events {
    worker_connections 1024;
}

http {
    include /etc/nginx/mime.types;
    default_type application/octet-stream;

    gzip on;
    gzip_vary on;
    gzip_min_length 256;
    gzip_proxied any;
    gzip_types
        application/json
        application/javascript
        application/xml
        application/xml+rss
        text/css
        text/javascript
        text/plain
        text/xml;

    # CORS headers for OAuth redirects
    map $http_origin $cors_origin {
        default "";
        "https://llama.story-basking.ts.net" $http_origin;
    }

    server {
        listen 80;
        server_name _;

        client_max_body_size 100M;

        location / {
            # Add CORS headers to all responses
            add_header Access-Control-Allow-Origin $cors_origin always;
            add_header Access-Control-Allow-Credentials true always;
            add_header Access-Control-Allow-Methods "GET, POST, PUT, DELETE, OPTIONS" always;
            add_header Access-Control-Allow-Headers "DNT,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range,Authorization" always;

            # Handle preflight requests
            if ($request_method = OPTIONS) {
                return 204;
            }

            proxy_pass http://llama_oauth2_proxy:4180;
            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-Auth-Request-Redirect $request_uri;

            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection "upgrade";

            proxy_connect_timeout 60s;
            proxy_send_timeout 60s;
            proxy_read_timeout 60s;

            # Important: Pass cookies properly
            proxy_pass_header Set-Cookie;
            proxy_cookie_domain localhost llama.story-basking.ts.net;
        }
    }
}