LibreChat/client/src/components/Input/Endpoints/FileUpload.jsx

import React from 'react';
import { useSetRecoilState } from 'recoil';
import { FileUp } from 'lucide-react';
import store from '~/store';
import axios from 'axios';

async function fetchPresets(callback) {
  try {
    const response = await axios.get('/api/presets', {
      timeout: 1000,
      withCredentials: true
    });

    callback(response.data);
  } catch (error) {
    console.error(error);
    console.log('[FileUpload] Error fetching presets');
  }
}

const FileUpload = ({ onFileSelected }) => {
  const setPresets = useSetRecoilState(store.presets);

  const handleFileChange = event => {
    const file = event.target.files[0];
    if (!file) return;

    const reader = new FileReader();
    reader.onload = e => {
      const jsonData = JSON.parse(e.target.result);
      onFileSelected(jsonData, () => fetchPresets(setPresets));
    };
    reader.readAsText(file);
  };

  return (
    <label
      htmlFor="file-upload"
      className=" mr-1 flex h-auto  cursor-pointer items-center rounded bg-transparent px-2 py-1 text-xs font-medium font-normal text-gray-600 hover:bg-slate-200 hover:text-green-700 dark:bg-transparent dark:text-gray-300 dark:hover:bg-gray-800 dark:hover:text-green-500"
    >
      <FileUp className="flex w-[22px] items-center stroke-1" />
      <span className="ml-1 flex text-xs ">Import</span>
      <input
        id="file-upload"
        type="file"
        className="hidden "
        accept=".json"
        onChange={handleFileChange}
      />
    </label>
  );
};

export default FileUpload;