client/src/components/Nav/NewChat.tsx

import { Search } from 'lucide-react';
import { useRecoilValue } from 'recoil';
import { useNavigate } from 'react-router-dom';
import { useGetEndpointsQuery } from 'librechat-data-provider/react-query';
import { TooltipProvider, Tooltip, TooltipTrigger, TooltipContent } from '~/components/ui';
import { getEndpointField, getIconEndpoint, getIconKey } from '~/utils';
import { icons } from '~/components/Chat/Menus/Endpoints/Icons';
import ConvoIconURL from '~/components/Endpoints/ConvoIconURL';
import { useLocalize, useNewConvo } from '~/hooks';
import { NewChatIcon } from '~/components/svg';
import store from '~/store';
import type { TConversation } from 'librechat-data-provider';

const NewChatButtonIcon = ({ conversation }: { conversation: TConversation | null }) => {
  const searchQuery = useRecoilValue(store.searchQuery);
  const { data: endpointsConfig } = useGetEndpointsQuery();

  if (searchQuery) {
    return (
      <div className="shadow-stroke relative flex h-7 w-7 items-center justify-center rounded-full bg-white text-black dark:bg-white">
        <Search className="h-5 w-5" />
      </div>
    );
  }

  let { endpoint = '' } = conversation ?? {};
  const iconURL = conversation?.iconURL ?? '';
  endpoint = getIconEndpoint({ endpointsConfig, iconURL, endpoint });

  const endpointType = getEndpointField(endpointsConfig, endpoint, 'type');
  const endpointIconURL = getEndpointField(endpointsConfig, endpoint, 'iconURL');
  const iconKey = getIconKey({ endpoint, endpointsConfig, endpointType, endpointIconURL });
  const Icon = icons[iconKey];

  return (
    <div className="h-7 w-7 flex-shrink-0">
      {iconURL && iconURL.includes('http') ? (
        <ConvoIconURL preset={conversation} endpointIconURL={iconURL} context="nav" />
      ) : (
        <div className="shadow-stroke relative flex h-full items-center justify-center rounded-full bg-white text-black dark:bg-white">
          {endpoint && Icon && (
            <Icon
              size={41}
              context="nav"
              className="h-2/3 w-2/3"
              endpoint={endpoint}
              endpointType={endpointType}
              iconURL={endpointIconURL}
            />
          )}
        </div>
      )}
    </div>
  );
};

export default function NewChat({
  index = 0,
  toggleNav,
  subHeaders,
}: {
  index?: number;
  toggleNav: () => void;
  subHeaders?: React.ReactNode;
}) {
  /** Note: this component needs an explicit index passed if using more than one */
  const { newConversation: newConvo } = useNewConvo(index);
  const navigate = useNavigate();
  const localize = useLocalize();

  const { conversation } = store.useCreateConversationAtom(index);

  const clickHandler = (event: React.MouseEvent<HTMLAnchorElement>) => {
    if (event.button === 0 && !(event.ctrlKey || event.metaKey)) {
      event.preventDefault();
      newConvo();
      navigate('/c/new');
      toggleNav();
    }
  };

  return (
    <TooltipProvider delayDuration={250}>
      <Tooltip>
        <div className="sticky left-0 right-0 top-0 z-20 bg-gray-50 pt-3.5 dark:bg-gray-850">
          <div className="pb-0.5 last:pb-0" tabIndex={0} style={{ transform: 'none' }}>
            <a
              href="/"
              data-testid="nav-new-chat-button"
              onClick={clickHandler}
              className="group flex h-10 items-center gap-2 rounded-lg px-2 font-medium hover:bg-gray-200 dark:hover:bg-gray-700"
            >
              <NewChatButtonIcon conversation={conversation} />
              <div className="text-token-text-primary grow overflow-hidden text-ellipsis whitespace-nowrap text-sm">
                {localize('com_ui_new_chat')}
              </div>
              <div className="flex gap-3">
                <span className="flex items-center" data-state="closed">
                  <TooltipTrigger asChild>
                    <button type="button" className="text-token-text-primary">
                      <NewChatIcon className="h-[18px] w-[18px]" />
                    </button>
                  </TooltipTrigger>
                  <TooltipContent side="right" sideOffset={20}>
                    {localize('com_ui_new_chat')}
                  </TooltipContent>
                </span>
              </div>
            </a>
          </div>
          {subHeaders ? subHeaders : null}
        </div>
      </Tooltip>
    </TooltipProvider>
  );
}