import { DiscountType } from '../models/ReferralCode';
export interface CreateCodeResponse {
    success: boolean;
    code?: string;
    error?: string;
    message?: string;
}
export interface VerifyCodeResponse {
    isValid: boolean;
    discountInfo?: {
        discountType: DiscountType;
        discountValue: number;
        discountAmount?: number;
        finalAmount?: number;
    };
    error?: string;
    message?: string;
}
export interface IncrementUsageResponse {
    success: boolean;
    usedCount?: number;
    isActive?: boolean;
    error?: string;
    message?: string;
}
/**
 * Controller for Referral Code API
 */
export declare class ReferralController {
    /**
     * Creates a new referral code
     * @param clientId - ID of the client using the package
     * @param discountType - Type of discount ('percentage' | 'amount')
     * @param discountValue - Discount value (percentage 0-100 or fixed amount)
     * @param usageLimit - Optional maximum usage limit
     * @param code - Optional custom referral code. If provided, will validate it with clientId and check if it's available
     * @returns CreateCodeResponse with generated code or error
     */
    static createCode(clientId: string, discountType: DiscountType, discountValue: number, usageLimit?: number, code?: string): Promise<CreateCodeResponse>;
    /**
     * Verifies a referral code and returns validation status with discount information
     * @param code - The referral code to verify
     * @param originalAmount - Optional original amount for discount calculation
     * @returns VerifyCodeResponse with validation status and discount info
     */
    static verifyCode(code: string, originalAmount?: number): Promise<VerifyCodeResponse>;
    /**
     * Increments the usage count of a referral code
     * Automatically deactivates the code if usage limit is reached
     * @param code - The referral code to increment usage for
     * @returns IncrementUsageResponse with updated usage count and active status
     */
    static incrementUsage(code: string): Promise<IncrementUsageResponse>;
}