import { Stack, aws_sns as sns, aws_budgets as budgets } from "aws-cdk-lib";
import { Email } from "./utils";
export interface IBudgetStrategyProps {
    monthlyLimitInDollars: number;
    subscribers: Array<Email>;
    defaultTopic?: string;
}
export declare abstract class IBudgetStrategy {
    private props;
    private _defaultTopic?;
    protected stack: Stack;
    /**
     * defines the stratcure of a BudgetStategy class.
     *
     * @param construct - use to define it's resources inside it.
     * @param props.monthlyBudget - montly budget in US Dollors.
     * @param props.defaultTopic - default SNS topic name. Only if provided, the BudgetStratgy creates an SNS topic and send notifications to it.
     * @param props.subscribers - list of email address that the BudgetStrategy will use to send alerts to.
     */
    constructor(construct: Stack, props: IBudgetStrategyProps);
    protected abstract createDailyBudgets(dailyLimit: number, subscribers: Array<budgets.CfnBudget.SubscriberProperty>): void;
    protected abstract createMonthlyBudgets(monthlyLimit: number, subscribers: Array<budgets.CfnBudget.SubscriberProperty>): void;
    protected abstract createQuarterlyBudgets(quarterlyLimit: number, subscribers: Array<budgets.CfnBudget.SubscriberProperty>): void;
    protected abstract createYearlyBudgets(yearlyLimit: number, subscribers: Array<budgets.CfnBudget.SubscriberProperty>): void;
    /**
     * creates all the daily, monthly, quaryerly, and yearly budgets based on the implementation of the related methods.
     */
    createBudgets(): void;
    private createAllSubscribers;
    private createSNSSubscriber;
    private createEmailSubscribers;
    /**
     * Return default SNS topic only if the defultTopic prop has been passed when instantiating.
     */
    get defaultTopic(): sns.Topic | undefined;
    /**
     * calculates daily limit based on the provided monthly limit.
     */
    get dailyLimit(): number;
    /**
     * returns montly limit.
     */
    get monthlyLimit(): number;
    /**
     * calculates quarterly limit based on the provided monthly limit.
     */
    get quarterlyLimit(): number;
    /**
     * calculates yearly limit based on the provided daily budget.
     */
    get yearlyLimit(): number;
}