ConceptPortal-public/rsconcept/frontend/src/components/Common/FileInput.tsx

'use client';

import clsx from 'clsx';
import { useRef, useState } from 'react';

import { UploadIcon } from '../Icons';
import Button from './Button';
import Label from './Label';

interface FileInputProps 
extends Omit<React.InputHTMLAttributes<HTMLInputElement>, 'className' | 'title' | 'style' | 'accept' | 'type'> {
  label: string
  tooltip?: string
  dimensions?: string
  
  acceptType?: string
  onChange?: (event: React.ChangeEvent<HTMLInputElement>) => void
}

function FileInput({
  label, acceptType, tooltip,
  dimensions = 'w-fit', onChange,
  ...restProps 
}: FileInputProps) {
  const inputRef = useRef<HTMLInputElement | null>(null);
  const [fileName, setFileName] = useState('');

  const handleUploadClick = () => {
    inputRef.current?.click();
  };

  const handleFileChange = (event: React.ChangeEvent<HTMLInputElement>) => {
    if (event.target.files && event.target.files.length > 0) {
      setFileName(event.target.files[0].name)
    } else {
      setFileName('')
    }
    if (onChange) {
      onChange(event);
    }
  };

  return (
  <div className={clsx(
    'py-2',
    'flex flex-col gap-2 items-start',
    dimensions
  )}>
    <input type='file'
      ref={inputRef}
      style={{ display: 'none' }}
      accept={acceptType}
      onChange={handleFileChange}
      {...restProps}
    />
    <Button
      text={label}
      icon={<UploadIcon/>}
      onClick={handleUploadClick}
      tooltip={tooltip}
    />
    <Label text={fileName} />
  </div>);
}

export default FileInput;