import { NamiAnonymousCampaign, NamiCampaign, NamiCampaignSegment } from "../../types/externals/campaign";
import { IPaywall } from "../../types/paywall";
import type { TDevice } from '../../types/device';
export declare const isValidUrl: (label: string) => boolean;
export declare const selectSegment: (segments: NamiCampaignSegment[], splitPosition: number) => NamiCampaignSegment;
export declare const mapAnonymousCampaigns: (campaigns: NamiAnonymousCampaign[], splitPosition: number, formFactor?: TDevice) => NamiCampaign[];
/**
 *
 * @returns A combined list of unique campaigns based on both API and Initial, filtered by form factor.
 * This is used to get all campaigns that are applicable to the current device.
 *
 * Note: Since this function returns a unique list of campaigns, and API campaigns take precedence,
 * there may be times when API campaigns are returned that do not yet have paywalls but initial campaigns would.
 */
export declare const allCampaigns: () => NamiCampaign[];
export declare const getInitialCampaigns: () => NamiCampaign[];
export declare const getApiCampaigns: () => NamiCampaign[];
/**
 * Get paywall data from label. This function continues to search for both the campaign and paywall
 * based on the provided label and type. It first checks API data, then falls back to initial data.
 *
 * @param value Campaign label to search for
 * @param type Campaign type to filter by
 * @returns An object containing the currently available campaign and paywall data
 */
export declare const getPaywallDataFromLabel: (value: string, type?: string) => {
    campaign: NamiCampaign | undefined;
    paywall: IPaywall | undefined;
};