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import React, {
  ChangeEvent,
  useRef,
  useEffect,
  useCallback,
  useState,
} from 'react';
import { useField } from '@unform/core';
interface Props {
  name: string;
}
type InputProps = JSX.IntrinsicElements['input'] & Props;
export default function ImageInput({ name, ...rest }: InputProps) {
  const inputRef = useRef<HTMLInputElement>(null);
  const { fieldName, registerField, defaultValue, error } = useField(name);
  const [preview, setPreview] = useState(defaultValue);
  const handlePreview = useCallback((e: ChangeEvent<HTMLInputElement>) => {
    const file = e.target.files?.[0];
    if (!file) {
      setPreview(null);
    }
    const previewURL = URL.createObjectURL(file);
    setPreview(previewURL);
  }, []);
  useEffect(() => {
    registerField({
      name: fieldName,
      ref: inputRef.current,
      path: 'files[0]',
      clearValue(ref: HTMLInputElement) {
        ref.value = '';
        setPreview(null);
      },
      setValue(_: HTMLInputElement, value: string) {
        setPreview(value);
      },
    });
  }, [fieldName, registerField]);
  return (
    <>
      {preview && <img src={preview} alt="Preview" width="100" />}
      <input type="file" ref={inputRef} onChange={handlePreview} {...rest} />
    </>
  );
};