/**
 * Geoscience Australia Historical Aerial Photography (HAP) API Client
 *
 * ArcGIS REST Feature Service for historical aerial photographs (1928-1996).
 * No API key required - CC-BY 4.0 licensed.
 *
 * API Base: https://services1.arcgis.com/wfNKYeHsOyaFyPw3/arcgis/rest/services/
 * Feature Service: HistoricalAerialPhotography_AGOL_DIST_gdb/FeatureServer/
 * Layer 0: HAP_Photo_Centres_AGOL
 */
import { BaseClient } from '../../core/base-client.js';
import type { GAHAPSearchParams, GAHAPGetPhotoParams, GAHAPPhoto, GAHAPSearchResult } from './types.js';
export declare class GAHAPClient extends BaseClient {
    constructor();
    /**
     * Search for historical aerial photographs
     */
    searchPhotos(params: GAHAPSearchParams): Promise<GAHAPSearchResult>;
    /**
     * Get a single photo by OBJECTID or film/run/frame
     */
    getPhoto(params: GAHAPGetPhotoParams): Promise<GAHAPPhoto | null>;
    /**
     * Harvest photos with pagination for bulk download
     */
    harvest(params: GAHAPSearchParams & {
        maxRecords?: number;
        startFrom?: number;
    }): Promise<{
        records: GAHAPPhoto[];
        hasMore: boolean;
        nextOffset: number;
    }>;
    /**
     * Build WHERE clause from search parameters
     */
    private buildWhereClause;
    /**
     * Extract URL from HTML anchor tag
     * API returns: <a href="https://..." target="_blank">text</a>
     */
    private extractUrl;
    /**
     * Parse ArcGIS attributes to GAHAPPhoto
     */
    private parsePhoto;
    /**
     * Convert Web Mercator X to WGS84 longitude
     */
    private webMercatorToLon;
    /**
     * Convert Web Mercator Y to WGS84 latitude
     */
    private webMercatorToLat;
    /**
     * Convert WGS84 longitude to Web Mercator X
     */
    private lonToWebMercator;
    /**
     * Convert WGS84 latitude to Web Mercator Y
     */
    private latToWebMercator;
}
export declare const gaHapClient: GAHAPClient;
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