import { MapModel } from "../../model/MapModel";
import { InternalConstructorTag } from "../../utils/InternalConstructorTag";
import type { LayerLoadInfo, LayerLoadState } from "../AbstractLayer";
import { AbstractLayerBase } from "../AbstractLayerBase";
import { ATTACH_TO_MAP, ATTACH_TO_PARENT, DETACH_FROM_MAP, SET_LEGEND } from "../shared/internals";
import { LayerBaseConfig } from "../shared/LayerConfig";
import { SublayerBaseType } from "../shared/SublayerBaseType";
import { SublayersCollection } from "../shared/SublayersCollection";
import { WMSLayer } from "../WMSLayer";
/**
 * Configuration options to construct the sublayers of a {@link WMSLayer}.
 *
 * @group Layers
 */
export interface WMSSublayerConfig extends LayerBaseConfig {
    /**
     * The name of the WMS sublayer in the service's capabilities.
     * Not mandatory, e.g. for WMS group layer. See [WMS spec](https://www.ogc.org/standard/wms/).
     */
    name?: string;
    /** Configuration for nested sublayers. */
    sublayers?: WMSSublayerConfig[];
}
export declare const SET_SUBLAYER_LOAD_INFO: unique symbol;
/**
 * Represents a sublayer of a {@link WMSLayer}.
 *
 * @group Layers
 */
export declare class WMSSublayer extends AbstractLayerBase implements SublayerBaseType {
    #private;
    /**
     * @internal
     */
    constructor(config: WMSSublayerConfig, tag: InternalConstructorTag);
    get type(): "wms-sublayer";
    /**
     * The name of the WMS sublayer in the service's capabilities.
     *
     * Is optional as a WMS group layer in a WMS service does not need to have a name.
     */
    get name(): string | undefined;
    get layers(): undefined;
    get sublayers(): SublayersCollection<WMSSublayer>;
    get parent(): WMSSublayer | WMSLayer;
    get parentLayer(): WMSLayer;
    get legend(): string | undefined;
    get loadState(): LayerLoadState;
    /**
     * The error (if any) that prevented this sublayer from loading.
     */
    get loadError(): Error | undefined;
    get visible(): boolean;
    /**
     * Called by the parent layer when it is attached to the map to attach all sublayers.
     *
     * @internal
     */
    [ATTACH_TO_MAP](map: MapModel): void;
    /** @internal */
    [DETACH_FROM_MAP](): void;
    /**
     * Attaches this sublayer to its parent _layer_ and its immediate parent _layer or sublayer_.
     *
     * @internal
     */
    [ATTACH_TO_PARENT](parentLayer: WMSLayer, parent: WMSLayer | WMSSublayer): void;
    /**
     * Called by the parent layer to update the legend on load.
     *
     * @internal
     */
    [SET_LEGEND](legendUrl: string | undefined): void;
    /**
     * Called by the parent layer once the capabilities have been validated.
     *
     * @internal
     */
    [SET_SUBLAYER_LOAD_INFO](loadInfo: LayerLoadInfo): void;
    setVisible(newVisibility: boolean): void;
}
/**
 * Constructs a tree of wms sublayers from a nested configuration object.
 */
export declare function constructSublayers(sublayerConfigs?: WMSSublayerConfig[]): WMSSublayer[];