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import { Graph } from '@antv/g6';

const data = {
  nodes: [
    { id: 'A', style: { x: 50, y: 350 } },
    { id: 'B', style: { x: 250, y: 150 } },
    { id: 'C', style: { x: 450, y: 350 } },
  ],
  edges: [
    { source: 'A', target: 'C' },
    { source: 'C', target: 'A' },
    ...Array.from({ length: 10 }).map((_, i) => ({
      id: `edge:A-B${i}`,
      source: 'A',
      target: 'B',
      data: {
        label: `A->B:${i}`,
      },
    })),
    ...Array.from({ length: 5 }).map((_, i) => ({
      id: `edge:B-C${i}`,
      source: 'B',
      target: 'C',
      data: {
        label: `B->C:${i}`,
      },
    })),
  ],
};

const graph = new Graph({
  container: 'container',
  autoFit: 'center',
  data,
  node: {
    style: {
      ports: [{ placement: 'center' }],
      labelText: (d) => d.id,
    },
  },
  edge: {
    style: {
      labelText: (d) => d?.data?.label || `${d.source}->${d.target}`,
    },
  },
  behaviors: ['drag-element'],
  transforms: ['process-parallel-edges'],
});

graph.render();

import { Graph } from '@antv/g6';
import GUI from 'lil-gui';

export function addPanel(renderPanel: (gui: GUI) => void) {
  const gui = new GUI({ container: document.body });
  gui.title('Control');
  Object.assign(gui.domElement.style, { position: 'absolute', top: '0', right: '0', zIndex: '10' });
  renderPanel(gui);
  addEventListener('pagehide', () => gui.destroy(), { once: true });
}

export async function createGraph(
  options: ConstructorParameters<typeof Graph>[0],
  size: { width?: number; height?: number } = {},
  renderPanel?: (gui: GUI, graph: Graph) => void,
) {
  const container = document.createElement('div');
  Object.assign(container.style, {
    width: '100%',
    maxWidth: `${size.width || 600}px`,
    height: `${size.height || 400}px`,
  });
  document.getElementById('container')!.append(container);
  const graph = new Graph({ ...size, ...options, width: container.clientWidth, container, autoResize: true });
  addEventListener('pagehide', () => graph.destroy(), { once: true });
  await graph.render();
  if (renderPanel) addPanel((gui) => renderPanel(gui, graph));
  return container;
}