/*
 * SPDX-FileCopyrightText: 2023 The Refinery Authors <https://refinery.tools/>
 *
 * SPDX-License-Identifier: EPL-2.0
 */

import Box from '@mui/material/Box';
import { useTheme } from '@mui/material/styles';
import { observer } from 'mobx-react-lite';
import { useResizeDetector } from 'react-resize-detector';

import Loading from '../Loading';
import { useRootStore } from '../RootStoreProvider';

import DotGraphVisualizer from './DotGraphVisualizer';
import VisibilityPanel from './VisibilityPanel';
import ZoomCanvas from './ZoomCanvas';

function GraphArea(): JSX.Element {
  const { editorStore } = useRootStore();
  const { breakpoints } = useTheme();
  const { ref, width, height } = useResizeDetector({
    refreshMode: 'debounce',
  });

  if (editorStore === undefined) {
    return <Loading />;
  }

  const { graph } = editorStore;
  const breakpoint = breakpoints.values.sm;
  const dialog =
    width === undefined ||
    height === undefined ||
    width < breakpoint ||
    height < breakpoint;

  return (
    <Box
      width="100%"
      height="100%"
      overflow="hidden"
      position="relative"
      ref={ref}
    >
      <ZoomCanvas>
        {(fitZoom) => <DotGraphVisualizer graph={graph} fitZoom={fitZoom} />}
      </ZoomCanvas>
      <VisibilityPanel graph={graph} dialog={dialog} />
    </Box>
  );
}

export default observer(GraphArea);