import { PriceJson } from '@soul-wallet/extension-base/background/KoniTypes';
import { CronServiceInterface, PersistDataServiceInterface, ServiceStatus, StoppableServiceInterface } from '@soul-wallet/extension-base/services/base/types';
import { ChainService } from '@soul-wallet/extension-base/services/chain-service';
import { EventService } from '@soul-wallet/extension-base/services/event-service';
import DatabaseService from '@soul-wallet/extension-base/services/storage-service/DatabaseService';
import { BehaviorSubject } from 'rxjs';
export declare class PriceService implements StoppableServiceInterface, PersistDataServiceInterface, CronServiceInterface {
    status: ServiceStatus;
    private dbService;
    private eventService;
    private chainService;
    private priceSubject;
    private refreshTimeout;
    private priceIds;
    constructor(dbService: DatabaseService, eventService: EventService, chainService: ChainService);
    getPrice(): Promise<PriceJson>;
    getPriceSubject(): BehaviorSubject<PriceJson>;
    getPriceIds(): Set<string>;
    refreshPriceData(priceIds?: Set<string>): void;
    init(): Promise<void>;
    loadData(): Promise<void>;
    persistData(): Promise<void>;
    startPromiseHandler: {
        resolve: (value: void) => void;
        reject: (reason?: unknown) => void;
        promise: Promise<void>;
    };
    start(): Promise<void>;
    startCron(): Promise<void>;
    stopPromiseHandler: {
        resolve: (value: void) => void;
        reject: (reason?: unknown) => void;
        promise: Promise<void>;
    };
    stop(): Promise<void>;
    stopCron(): Promise<void>;
    waitForStarted(): Promise<void>;
    waitForStopped(): Promise<void>;
}