decode static method

Implementation

static SkyLayer decode(String properties) {
  var map = json.decode(properties);
  if (map["layout"] == null) {
    map["layout"] = {};
  }
  if (map["paint"] == null) {
    map["paint"] = {};
  }
  return SkyLayer(
    id: map["id"],
    minZoom: map["minzoom"]?.toDouble(),
    maxZoom: map["maxzoom"]?.toDouble(),
    slot: map["slot"],
    visibility: map["layout"]["visibility"] == null
        ? Visibility.VISIBLE
        : Visibility.values.firstWhere(
            (e) => e.name
                .toLowerCase()
                .replaceAll("_", "-")
                .contains(map["layout"]["visibility"]),
          ),
    visibilityExpression: styleOptionalCastList(map["layout"]["visibility"]),
    filter: styleOptionalCastList(map["filter"]),
    skyAtmosphereColor: (map["paint"]["sky-atmosphere-color"] as List?)
        ?.toRGBAInt(),
    skyAtmosphereColorExpression: styleOptionalCastList(
      map["paint"]["sky-atmosphere-color"],
    ),
    skyAtmosphereHaloColor:
        (map["paint"]["sky-atmosphere-halo-color"] as List?)?.toRGBAInt(),
    skyAtmosphereHaloColorExpression: styleOptionalCastList(
      map["paint"]["sky-atmosphere-halo-color"],
    ),
    skyAtmosphereSun: (map["paint"]["sky-atmosphere-sun"] as List?)
        ?.map<double?>((e) => e.toDouble())
        .toList(),
    skyAtmosphereSunExpression: styleOptionalCastList(
      map["paint"]["sky-atmosphere-sun"],
    ),
    skyAtmosphereSunIntensity: styleOptionalCast(
      map["paint"]["sky-atmosphere-sun-intensity"],
    ),
    skyAtmosphereSunIntensityExpression: styleOptionalCastList(
      map["paint"]["sky-atmosphere-sun-intensity"],
    ),
    skyGradient: (map["paint"]["sky-gradient"] as List?)?.toRGBAInt(),
    skyGradientExpression: styleOptionalCastList(
      map["paint"]["sky-gradient"],
    ),
    skyGradientCenter: (map["paint"]["sky-gradient-center"] as List?)
        ?.map<double?>((e) => e.toDouble())
        .toList(),
    skyGradientCenterExpression: styleOptionalCastList(
      map["paint"]["sky-gradient-center"],
    ),
    skyGradientRadius: styleOptionalCast(map["paint"]["sky-gradient-radius"]),
    skyGradientRadiusExpression: styleOptionalCastList(
      map["paint"]["sky-gradient-radius"],
    ),
    skyOpacity: styleOptionalCast(map["paint"]["sky-opacity"]),
    skyOpacityExpression: styleOptionalCastList(map["paint"]["sky-opacity"]),
    skyType: map["paint"]["sky-type"] == null
        ? null
        : SkyType.values.firstWhere(
            (e) => e.name
                .toLowerCase()
                .replaceAll("_", "-")
                .contains(map["paint"]["sky-type"]),
          ),
    skyTypeExpression: styleOptionalCastList(map["paint"]["sky-type"]),
  );
}