"use client";

import { useParams, usePathname, useSearchParams } from "next/navigation";
import { useEffect, useState } from "react";

import { uuid } from "@/core/utils/uuid";

export function useThreadChat() {
  const { thread_id: threadIdFromPath } = useParams<{ thread_id: string }>();
  const pathname = usePathname();

  const searchParams = useSearchParams();
  const xClawUsedFromQuery = searchParams.get("xclaw_used");
  const [threadId, setThreadId] = useState(() => {
    if (threadIdFromPath === "new") {
      const shouldUseQueryThreadId = pathname.startsWith("/workspace/chats/");
      const queryThreadId =
        shouldUseQueryThreadId && xClawUsedFromQuery === "true"
          ? searchParams.get("thread_id")?.trim()
          : undefined;
      return queryThreadId ?? uuid();
    }
    return threadIdFromPath;
  });

  const [isNewThread, setIsNewThread] = useState(
    () => threadIdFromPath === "new",
  );

  useEffect(() => {
    if (pathname.endsWith("/new")) {
      setIsNewThread(true);
      const shouldUseQueryThreadId = pathname.startsWith("/workspace/chats/");
      const queryThreadId =
        shouldUseQueryThreadId && xClawUsedFromQuery === "true"
          ? searchParams.get("thread_id")?.trim()
          : undefined;
      setThreadId(queryThreadId ?? uuid());
      return;
    }
    setIsNewThread(false);
    setThreadId(threadIdFromPath);
  }, [pathname, searchParams, threadIdFromPath]);
  const isMock = searchParams.get("mock") === "true";
  return { threadId, isNewThread, setIsNewThread, isMock };
}