import { DynamicModule, OnModuleInit } from "@nestjs/common";
import { ReferralModuleAsyncOptions, ReferralModuleConfig } from "./interfaces/referral.config.interface";
/**
 * ReferralModule
 *
 * Provides referral functionality with configurable token rewards.
 * Uses forRoot/forRootAsync patterns for flexible configuration.
 *
 * Features:
 * - Referral code generation and tracking
 * - Referral invite emails with cooldown
 * - Token rewards on referral completion
 * - Integration with AuthService via REGISTRATION_HOOK
 * - Integration with StripeWebhook via REFERRAL_COMPLETION_HANDLER
 *
 * Usage:
 * ```typescript
 * // Synchronous configuration
 * ReferralModule.forRoot({
 *   enabled: true,
 *   rewardTokens: 1000,
 * })
 *
 * // Async configuration with ConfigService
 * ReferralModule.forRootAsync({
 *   imports: [ConfigModule],
 *   useFactory: (configService: ConfigService) => ({
 *     enabled: configService.get('REFERRAL_ENABLED') === 'true',
 *     rewardTokens: configService.get('REFERRAL_REWARD_TOKENS') || 1000,
 *   }),
 *   inject: [ConfigService],
 * })
 * ```
 *
 * Note: Referral URLs use process.env.APP_URL automatically.
 */
export declare class ReferralModule implements OnModuleInit {
    onModuleInit(): void;
    /**
     * Configure the ReferralModule with synchronous options.
     * @param config - Optional configuration that will be merged with defaults
     */
    static forRoot(config?: ReferralModuleConfig): DynamicModule;
    /**
     * Configure the ReferralModule with async options.
     * Use this when configuration depends on other services like ConfigService.
     * @param options - Async options with useFactory function
     */
    static forRootAsync(options: ReferralModuleAsyncOptions): DynamicModule;
    /**
     * Create the dynamic module with all providers and exports.
     * @param providers - Configuration providers (sync or async)
     * @param imports - Additional imports for async configuration
     */
    private static createModule;
}
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