LibreChat/client/src/components/Chat/Input/ChatForm.tsx

import { useRecoilState } from 'recoil';
import type { ChangeEvent } from 'react';
import { useChatContext } from '~/Providers';
import AttachFile from './Files/AttachFile';
import StopButton from './StopButton';
import SendButton from './SendButton';
import Images from './Files/Images';
import Textarea from './Textarea';
import store from '~/store';

export default function ChatForm({ index = 0 }) {
  const [text, setText] = useRecoilState(store.textByIndex(index));
  const { ask, files, setFiles, conversation, isSubmitting, handleStopGenerating } =
    useChatContext();

  const submitMessage = () => {
    ask({ text });
    setText('');
  };

  return (
    <form
      onSubmit={(e) => {
        e.preventDefault();
        submitMessage();
      }}
      className="stretch mx-2 flex flex-row gap-3 last:mb-2 md:mx-4 md:last:mb-6 lg:mx-auto lg:max-w-2xl xl:max-w-3xl"
    >
      <div className="relative flex h-full flex-1 items-stretch md:flex-col">
        <div className="flex w-full items-center">
          <div className="[&:has(textarea:focus)]:border-token-border-xheavy border-token-border-heavy shadow-xs dark:shadow-xs relative flex w-full flex-grow flex-col overflow-hidden rounded-2xl border border-black/10 bg-white shadow-[0_0_0_2px_rgba(255,255,255,0.95)] dark:border-gray-600 dark:bg-gray-800 dark:text-white dark:shadow-[0_0_0_2px_rgba(52,53,65,0.95)] [&:has(textarea:focus)]:shadow-[0_2px_6px_rgba(0,0,0,.05)]">
            <Images files={files} setFiles={setFiles} />
            <Textarea
              value={text}
              onChange={(e: ChangeEvent<HTMLTextAreaElement>) => setText(e.target.value)}
              setText={setText}
              submitMessage={submitMessage}
              endpoint={conversation?.endpoint}
            />
            <AttachFile endpoint={conversation?.endpoint ?? ''} />
            {isSubmitting ? <StopButton stop={handleStopGenerating} /> : <SendButton text={text} />}
          </div>
        </div>
      </div>
    </form>
  );
}