export function findDefaultLayer()

in src/utils/layer-utils.js [25:54]

• 26 lines of code
• 8 McCabe index (conditional complexity)

export function findDefaultLayer(dataset, layerClasses = {}) {
  if (!dataset) {
    return [];
  }
  const layerProps = Object.keys(layerClasses).reduce((previous, lc) => {
    const result =
      typeof layerClasses[lc].findDefaultLayerProps === 'function'
        ? layerClasses[lc].findDefaultLayerProps(dataset, previous)
        : {props: []};

    const props = Array.isArray(result) ? result : result.props || [];
    const foundLayers = result.foundLayers || previous;

    return foundLayers.concat(
      props.map(p => ({
        ...p,
        type: lc,
        dataId: dataset.id
      }))
    );
  }, []);

  // go through all layerProps to create layer
  return layerProps.map(props => {
    const layer = new layerClasses[props.type](props);
    return typeof layer.setInitialLayerConfig === 'function' && Array.isArray(dataset.allData)
      ? layer.setInitialLayerConfig(dataset.allData)
      : layer;
  });
}