export declare const DEFAULT_RETRY_DELAY_MS = 1000;
export declare const MAX_CIRCUIT_OPEN_MS = 60000;
export declare const DEFAULT_CIRCUIT_BREAKER_FAILURE_THRESHOLD = 3;
export declare const FALLBACK_REASON: {
    NO_PROVIDER: string;
    PROVIDER_FAILURE: string;
    CIRCUIT_OPEN: string;
    UNKNOWN_ERROR: string;
};
export declare const FALLBACK_NEXT_STEPS: {
    readonly USER_ACTION: "contact_support";
    readonly SYSTEM_ACTION: "manual_review";
};
/** Risk levels */
export declare const RISK_LEVEL: {
    readonly LOW: "low";
    readonly MEDIUM: "medium";
    readonly HIGH: "high";
};
/** Security flags */
export declare const SECURITY_FLAGS: {
    readonly FALLBACK_USED: "fallback_used";
};
/** Allowed operators for custom rules */
export declare enum CUSTOM_RULE_OPERATER {
    ASSIGNMENT = "assignment",
    LOGICAL = "logical",
    COMPARISON = "comparison",
    ARITHMETIC = "arithmetic",
    CONDITIONAL = "conditional",
    CONCATENATE = "concatenate"
}
export declare const PAYMENT_GATEWAY_ERROR_MESSAGE: {
    readonly INITIAL_PAYMENT_ATTEMPT: "Initial payment attempt.";
    readonly PAYMENT_OPERATION_FAILED: "Payment operation failed.";
    readonly NON_PAYMENT_OPERATION_FAILED: "Non-payment operation failed.";
    readonly ADAPTER_NOT_FOUND: "Adapter not found for provider:";
    readonly NO_VALID_ADAPTER: "No valid provider adapter found.";
    readonly UNSUPPORTED_FEATURE: "Requested feature is not supported by the provider.";
    readonly UNKNOWN_PROVIDER: "Unknown payment provider specified.";
    readonly UNKNOWN_ERROR: "An unknown error occurred during payment processing.";
    readonly DUPLICATE_PAYMENT_IN_PROGRESS: "A payment with this idempotency key is already in progress.";
    readonly DUPLICATE_REFUND_IN_PROGRESS: "A refund for this transaction is already in progress.";
    readonly MISSING_TRANSACTION_ID: "Transaction ID is required for refund operation.";
    readonly INVALID_PAYMENT_REQUEST: "Invalid payment request payload.";
    readonly INVALID_PROVIDER_CONFIGURATION: "Invalid or missing provider configuration.";
    readonly CAPTURE_PAYMENT_FAILED: "Capture payment operation failed.";
    readonly CANCEL_PAYMENT_FAILED: "Cancel payment operation failed.";
    readonly PROCESS_REFUND_FAILED: "Refund operation failed.";
    readonly GET_REFUND_STATUS_FAILED: "Failed to retrieve refund status.";
    readonly GET_PAYMENT_STATUS_FAILED: "Failed to retrieve payment status.";
    readonly GET_TRANSACTION_FAILED: "Failed to retrieve transaction details.";
    readonly CREATE_CUSTOMER_UNSUPPORTED: "Create customer not supported by this provider.";
    readonly SAVE_PAYMENT_METHOD_UNSUPPORTED: "Save payment method not supported by this provider.";
    readonly DELETE_PAYMENT_METHOD_UNSUPPORTED: "Delete payment method not supported by this provider.";
    readonly GET_USER_PAYMENT_METHODS_UNSUPPORTED: "Get user payment methods not supported by this provider.";
    readonly CREATE_SUBSCRIPTION_UNSUPPORTED: "Create subscription not supported by this provider.";
    readonly CANCEL_SUBSCRIPTION_UNSUPPORTED: "Cancel subscription not supported by this provider.";
    readonly PROCESS_PAYOUT_UNSUPPORTED: "Payout not supported by this provider.";
    readonly GET_TRANSACTION_HISTORY_UNSUPPORTED: "Transaction history not supported by this provider.";
    readonly IDEMPOTENCY_LOCK_FAILED: "Another operation with the same key is currently being processed.";
    readonly FALLBACK_HANDLER_ERROR: "An error occurred while executing fallback handling.";
    readonly ROUTER_RESOLUTION_FAILED: "Failed to resolve provider adapter route.";
};
//# sourceMappingURL=gateway.d.ts.map