import { Device } from "../types/device";
import { IConfig } from "../types/config";
import { NamiConfiguration } from "../types/externals/config";
import { IPaywall } from "../types/paywall";
import { NamiCampaign } from "../types/externals/campaign";
import { NamiProfile } from "../types/profile";
import { IEntitlements, NamiEntitlement } from "../types/entitlements";
import { SKU } from "../types/sku";
import { CustomerJourneyState } from "../types/externals/customer";
export declare class StorageService {
    private memoryStore;
    setDevice(device: Device): void;
    getDevice(): Device | null;
    resetDevice(): void;
    getAnonymousMode(): boolean;
    setAnonymousMode(mode: boolean): void;
    clearAnonymousMode(): void;
    setAppConfig(key: string, config: IConfig): void;
    getAppConfig(key: string): IConfig | null;
    setLanguageCode(code?: string): void;
    getLanguageCode(): string;
    setCampaignRules(key: string, campaignRules: NamiCampaign[]): void;
    getCampaignRules(key: string): NamiCampaign[] | null;
    setPaywalls(key: string, paywalls: IPaywall[]): void;
    getPaywalls(key: string): IPaywall[] | null;
    setActiveEntitlements(key: string, entitlements: IEntitlements[]): void;
    getActiveEntitlements(key: string): IEntitlements[];
    setNamiEntitlements(key: string, entitlements: NamiEntitlement[]): void;
    getNamiEntitlements(key: string): NamiEntitlement[];
    setProducts(key: string, products: SKU[]): void;
    getProducts(key: string): SKU[] | null;
    getCachedProducts(): SKU[] | null;
    setNamiConfig(config: NamiConfiguration): void;
    getNamiConfig(): NamiConfiguration | null;
    setCustomerAttribute<T>(attribute: string, value: T): void;
    getCustomerAttribute<T>(attribute: string): T | null;
    getAllCustomerAttributes(): string[];
    getAllCustomerAttributesKeys(): string[];
    clearCustomerAttribute(attribute: string): boolean;
    clearAllCustomerAttributes(): void;
    setNamiProfile(profileData: NamiProfile): void;
    getNamiProfile(): NamiProfile | null;
    removeNamiProfile(): void;
    setCustomerJourneyState(state: CustomerJourneyState): void;
    getCustomerJourneyState(): CustomerJourneyState | null;
    setSessionCounter(): void;
    getSessionCounter(): number;
    setLastImpressionId(id: string): void;
    getLastImpressionId(): string;
    setPurchaseImpression(): void;
    getPurchaseImpression(): string;
    setSessionId(id?: string): void;
    getSessionId(): string;
    clearSessionId(): void;
    setPurchaseChannel(channel?: string): void;
    getPurchaseChannel(): string | null;
    /**
     * Set an item in localStorage.
     * @param {string} key - The key under which to store the data.
     * @param {T} value - The data to store.
     */
    private setItem;
    /**
     * Get an item from localStorage.
     * @param {string} key - The key of the item to retrieve.
     * @returns {T | null} The stored data, or null if not found.
     */
    private getItem;
    /**
     * Remove an item from localStorage.
     * @param {string} key - The key of the item to remove.
     */
    private resetItem;
    /**
     * Clear all items from localStorage.
     */
    clear(): void;
}
export declare const storageService: StorageService;