// src/components/scenes/MyFeature/scene.tsx
import {
  EmbeddedScene, SceneFlexLayout, SceneFlexItem,
  SceneQueryRunner, SceneVariableSet, QueryVariable,
  PanelBuilders, VariableValueSelectors, SceneControlsSpacer,
} from '@grafana/scenes';

export function getMyFeatureScene(params: { datasource: DataSourceRef }) {
  const queryRunner = new SceneQueryRunner({
    datasource: params.datasource,
    queries: [{ refId: 'A', expr: 'up{cluster=~"$cluster"}', instant: true, format: 'table' }],
  });

  const panel = PanelBuilders.table()
    .setData(queryRunner)
    .setTitle('My Table')
    .build();

  return new EmbeddedScene({
    $variables: new SceneVariableSet({
      variables: [
        new QueryVariable({
          name: 'cluster',
          query: 'label_values(up, cluster)',
          datasource: params.datasource,
          isMulti: true, includeAll: true, defaultToAll: true,
        }),
      ],
    }),
    controls: [new VariableValueSelectors({}), new SceneControlsSpacer()],
    body: new SceneFlexLayout({
      direction: 'column',
      children: [new SceneFlexItem({ body: panel })],
    }),
  });
}

// src/components/scenes/MyFeature/MyFeature.tsx
import { SceneAppPage, SceneTimeRange } from '@grafana/scenes';

export function getMyFeaturePage(params) {
  return new SceneAppPage({
    title: 'My Feature',
    url: '/a/my-plugin-id/my-feature',
    routePath: 'my-feature/*',
    $timeRange: new SceneTimeRange({ from: 'now-1h', to: 'now' }),
    getScene: () => getMyFeatureScene(params),
    drilldowns: [],
  });
}

drilldowns: [{
  routePath: ':cluster/*',
  getPage: (match, parent) => new SceneAppPage({
    title: decodeURIComponent(match.params.cluster),
    url: `${parent.state.url}/${match.params.cluster}`,
    routePath: `${match.params.cluster}/*`,
    getScene: () => detailScene(decodeURIComponent(match.params.cluster)),
  }),
}]

new SceneDataTransformer({
  $data: queryRunner,
  transformations: [
    { id: 'organize', options: { renameByName: { 'Value #A': 'CPU' } } },
    (ctx) => (source) => source.pipe(map((frames) => /* custom transform */)),
  ],
})

class MyWidget extends SceneObjectBase<MyWidgetState> {
  static Component = ({ model }: SceneComponentProps<MyWidget>) => {
    const state = model.useState();
    return <div>{state.value}</div>;
  };
}