import Helper from '@ember/component/helper';
import type { Map as MapboxMap } from 'mapbox-gl';
import type { RasterDEMSourceSpecification, TerrainSpecification } from 'mapbox-gl';
export interface MapboxGlTerrainSignature {
    Args: {
        Positional: [
            Partial<RasterDEMSourceSpecification>?,
            Partial<TerrainSpecification>?
        ];
        Named: {
            map: MapboxMap;
            sourceId?: string;
        };
    };
    Return: void;
}
/**
 * Helper to add and manage terrain on a Mapbox map instance.
 *
 * This helper allows the addition of a raster DEM source and configuration
 * of terrain settings on a provided MapboxMap instance. It ensures proper
 * cleanup of resources when the helper is destroyed.
 *
 * @class MapboxGlTerrainHelper
 *
 * Positional arguments:
 * @argument {Partial<RasterDEMSourceSpecification>} [sourceSpec] - The source specification for the raster DEM. Optional.
 * @argument {Partial<TerrainSpecification>} [terrainSpec] - The terrain specification. Optional.
 *
 * Named arguments:
 * @argument {MapboxMap} map - The MapboxMap instance where terrain is added.
 * @argument {string} [sourceId] - Optional identifier for the terrain source. Defaults to a unique identifier.
 */
export default class MapboxGlTerrain extends Helper<MapboxGlTerrainSignature> {
    private sourceId;
    private map?;
    compute([sourceSpec, terrainSpec,]: MapboxGlTerrainSignature["Args"]["Positional"] | undefined, { map, sourceId }: MapboxGlTerrainSignature['Args']['Named']): void;
    private addTerrain;
    willDestroy(): void;
}
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