import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.nio.charset.StandardCharsets;

public class FetchTools {
    public static void main(String[] args) throws Exception {
        HttpClient client = HttpClient.newBuilder().build();
        
        HttpRequest sseReq = HttpRequest.newBuilder()
            .uri(URI.create("https://axhubmcp.devjun.net/mcp/custom/cmm"))
            .GET()
            .build();
            
        HttpResponse<java.io.InputStream> sseRes = client.send(sseReq, HttpResponse.BodyHandlers.ofInputStream());
        BufferedReader reader = new BufferedReader(new InputStreamReader(sseRes.body(), StandardCharsets.UTF_8));
        
        String line;
        String postUrl = null;
        while ((line = reader.readLine()) != null) {
            if (line.startsWith("event:endpoint")) {
                String dataLine = reader.readLine(); // data:http...
                postUrl = dataLine.substring(5).trim();
                break;
            }
        }
        
        if (postUrl != null) {
            String payload = "{\"jsonrpc\":\"2.0\",\"id\":1,\"method\":\"tools/list\"}";
            HttpRequest postReq = HttpRequest.newBuilder()
                .uri(URI.create(postUrl))
                .header("Content-Type", "application/json")
                .POST(HttpRequest.BodyPublishers.ofString(payload))
                .build();
            
            client.send(postReq, HttpResponse.BodyHandlers.discarding());
            
            // Now read the rest of SSE
            while ((line = reader.readLine()) != null) {
                if (line.startsWith("event:message")) {
                    String dataLine = reader.readLine();
                    if (dataLine.startsWith("data:")) {
                        String json = dataLine.substring(5).trim();
                        System.out.println(json);
                        System.exit(0);
                    }
                }
            }
        }
    }
}