import React, { ReactElement, useRef, useState } from 'react';
import { convertFromRaw, EditorState, RawDraftContentState } from 'draft-js';

import Editor, { composeDecorators } from '@draft-js-plugins/editor';
import createImagePlugin from '@draft-js-plugins/image';
import createAlignmentPlugin from '@draft-js-plugins/alignment';
import createFocusPlugin from '@draft-js-plugins/focus';
import createResizeablePlugin from '@draft-js-plugins/resizeable';
import createBlockDndPlugin from '@draft-js-plugins/drag-n-drop';
import editorStyles from './editorStyles.css';

const focusPlugin = createFocusPlugin();
const resizeablePlugin = createResizeablePlugin();
const blockDndPlugin = createBlockDndPlugin();
const alignmentPlugin = createAlignmentPlugin();
const { AlignmentTool } = alignmentPlugin;

const decorator = composeDecorators(
  resizeablePlugin.decorator,
  alignmentPlugin.decorator,
  focusPlugin.decorator,
  blockDndPlugin.decorator
);
const imagePlugin = createImagePlugin({ decorator });

const plugins = [
  blockDndPlugin,
  focusPlugin,
  alignmentPlugin,
  resizeablePlugin,
  imagePlugin,
];

/* eslint-disable */
const initialState: RawDraftContentState = {
  entityMap: {
    '0': {
      type: 'IMAGE',
      mutability: 'IMMUTABLE',
      data: {
        src: '/images/canada-landscape-small.jpg',
      },
    },
  },
  blocks: [
    {
      key: '9gm3s',
      text:
        'You can have images in your text field. This is a very rudimentary example, but you can enhance the image plugin with resizing, focus or alignment plugins.',
      type: 'unstyled',
      depth: 0,
      inlineStyleRanges: [],
      entityRanges: [],
      data: {},
    },
    {
      key: 'ov7r',
      text: ' ',
      type: 'atomic',
      depth: 0,
      inlineStyleRanges: [],
      entityRanges: [
        {
          offset: 0,
          length: 1,
          key: 0,
        },
      ],
      data: {},
    },
    {
      key: 'e23a8',
      text: 'See advanced examples further down …',
      type: 'unstyled',
      depth: 0,
      inlineStyleRanges: [],
      entityRanges: [],
      data: {},
    },
  ],
};
/* eslint-enable */

const CustomImageEditor = (): ReactElement => {
  const [editorState, setEditorState] = useState(
    EditorState.createWithContent(convertFromRaw(initialState))
  );
  const editor = useRef<Editor>();

  return (
    <div>
      <div
        className={editorStyles.editor}
        onClick={(): void => {
          editor.current.focus();
        }}
      >
        <Editor
          editorState={editorState}
          onChange={(value): void => {
            setEditorState(value);
          }}
          plugins={plugins}
          ref={(element) => {
            editor.current = element;
          }}
        />
        <AlignmentTool />
      </div>
    </div>
  );
};

export default CustomImageEditor;