using Astralis;
using Invercargill;
using Invercargill.DataStructures;

public class RemoteAddressExample : Object {
    public static int main(string[] args) {
        // Create a simple handler that logs the client's remote address
        var handler = new SimpleHttpHandler();
        
        // Start the server on port 8080
        var server = new Server(8080, handler);
        server.run();
        
        return 0;
    }
}

// Simple handler that responds with client information
public class SimpleHttpHandler : Object, HttpHandler {
    public async HttpResult handle(HttpContext context) {
        var request = context.request;
        
        // Access the remote address
        var remote_address = request.remote_address;
        
        // Build JSON response with client info using string interpolation
        var json = @"{
  \"method\": \"$(request.method)\",
  \"path\": \"$(request.raw_path)\",
  \"remote_address\": \"$(remote_address ?? "unknown")\",
  \"user_agent\": \"$(request.user_agent ?? "unknown")\"
}";
        
        var response = new BufferedHttpResult.from_string(
            json,
            StatusCode.OK,
            get_json_headers()
        );
        
        // Log the request to console
        print(@"[$(get_current_time())] $(request.method) $(request.raw_path) from $(remote_address ?? "unknown")");
        
        return response;
    }
    
    private static string get_current_time() {
        var now = new DateTime.now_local();
        return now.format("%Y-%m-%d %H:%M:%S");
    }
    
    private static Catalogue<string, string> get_json_headers() {
        var headers = new Catalogue<string, string>();
        headers.add("Content-Type", "application/json");
        headers.add("Access-Control-Allow-Origin", "*");
        return headers;
    }
}