/**
 * Export Filtering Module
 *
 * Shared filtering logic for all export formats (CSV, Excel, JSON, Map, PDF).
 * Provides a single code path for filtering, sorting, and limiting activities.
 */
import type { GeocodedActivity, SortOrder } from '../types';
export type { SortOrder };
/**
 * Options for filtering activities before export.
 * All fields are optional - only specified filters are applied.
 */
export interface FilterOptions {
    /** Filter by categories (exact match, case-insensitive) */
    readonly categories?: readonly string[];
    /** Filter by countries (name or ISO code, case-insensitive) */
    readonly countries?: readonly string[];
    /** Filter by sender names (word-boundary match, case-insensitive) */
    readonly from?: readonly string[];
    /** Only activities on or after this date */
    readonly startDate?: Date;
    /** Only activities on or before this date */
    readonly endDate?: Date;
    /** Minimum score threshold (0-5, derived from interestingScore and funScore) */
    readonly minScore?: number;
    /** Only activities with specific venue/location (at least region + country) */
    readonly onlyLocations?: boolean;
    /** Only generic activities without specific locations */
    readonly onlyGeneric?: boolean;
    /** Maximum number of activities to return (0 = all, applied after sort) */
    readonly maxActivities?: number;
    /** Sort order when limiting (default: score) */
    readonly sort?: SortOrder;
}
/**
 * Normalize a country input to a standard country name.
 * Accepts ISO alpha-2, alpha-3 codes, or country names.
 * Returns null if the input cannot be normalized.
 */
export declare function normalizeCountry(input: string): string | null;
/**
 * Check if a sender name matches the filter using word-boundary matching.
 * "John" matches "John Smith" but not "Johnson".
 */
export declare function matchesSender(senderName: string, filter: string): boolean;
/**
 * Filter, sort, and limit activities based on the provided options.
 *
 * @param activities - Activities to filter
 * @param options - Filter options (all optional)
 * @returns Filtered, sorted, and limited activities
 *
 * @example
 * ```typescript
 * const filtered = filterActivities(activities, {
 *   categories: ['food', 'travel'],
 *   countries: ['NZ', 'Australia'],
 *   minScore: 1.5,
 *   maxActivities: 50,
 *   sort: 'score'
 * })
 * ```
 */
export declare function filterActivities(activities: readonly GeocodedActivity[], options?: FilterOptions): GeocodedActivity[];
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