import { useRef, useEffect } from "react";
import API_CONFIG from "../../../config/api";

export const useBenchmarkPolling = (
  sessionId,
  setGenerationLogs,
  setGenerationComplete,
  onComplete
) => {
  const pollingIntervalRef = useRef(null);

  const startPolling = () => {
    if (pollingIntervalRef.current) {
      clearInterval(pollingIntervalRef.current);
    }

    pollingIntervalRef.current = setInterval(async () => {
      try {
        const logsResponse = await fetch(
          `${API_CONFIG.BASE_URL}/benchmark-progress/${sessionId}`
        );

        if (logsResponse.ok) {
          const logsResult = await logsResponse.json();

          if (logsResult.logs) {
            setGenerationLogs((prevLogs) => {
              if (logsResult.logs.length > prevLogs.length) {
                return logsResult.logs;
              }
              return prevLogs;
            });
          }

          // Vérifier s'il y a des erreurs dans les logs
          const hasError = logsResult.logs.some(
            (log) =>
              log.includes("Error") ||
              log.includes("ERROR") ||
              log.includes("Failed") ||
              log.includes("RATE_LIMIT_EXCEEDED") ||
              log.includes("heavy load") ||
              log.includes("rate limit")
          );

          if (hasError) {
            setGenerationComplete(true);
            clearInterval(pollingIntervalRef.current);
            if (onComplete) {
              onComplete({
                success: false,
                error:
                  "An error occurred during benchmark generation. Please try again later.",
                sessionId,
              });
            }
            return;
          }

          if (logsResult.is_completed) {
            setGenerationComplete(true);
            clearInterval(pollingIntervalRef.current);
            if (onComplete) {
              onComplete({
                success: true,
                sessionId,
                logs: logsResult.logs,
              });
            }
          }
        } else {
          const errorData = await logsResponse.json();
          setGenerationComplete(true);
          clearInterval(pollingIntervalRef.current);
          if (onComplete) {
            onComplete({
              success: false,
              error: errorData.error || "Unknown error",
              sessionId,
            });
          }
        }
      } catch (error) {
        setGenerationComplete(true);
        clearInterval(pollingIntervalRef.current);
        if (onComplete) {
          onComplete({
            success: false,
            error: error.message,
            sessionId,
          });
        }
      }
    }, 2000);
  };

  useEffect(() => {
    return () => {
      if (pollingIntervalRef.current) {
        clearInterval(pollingIntervalRef.current);
      }
    };
  }, []);

  return { startPolling };
};