import { SchemeNetworkClient, PaymentRequirements, PaymentPayload } from '@aeon-ai-pay/core/types';
import { C as ClientEvmSigner } from './signer-BlO7K3AE.js';
export { F as FacilitatorEvmSigner, t as toClientEvmSigner, a as toFacilitatorEvmSigner } from './signer-BlO7K3AE.js';

/**
 * Minimal shape required to probe contract support via `readContract`.
 * Compatible with viem `PublicClient`, `WalletClient.extend(publicActions)`, etc.
 */
type ReadContractClient = {
    readContract(args: {
        address: `0x${string}`;
        abi: readonly unknown[];
        functionName: string;
        args?: readonly unknown[];
    }): Promise<unknown>;
};

/**
 * EVM client implementation for the Exact payment scheme.
 *
 */
declare class ExactEvmScheme implements SchemeNetworkClient {
    private readonly signer;
    /**
     * Optional viem client used for on-chain capability checks (e.g. readContract).
     * If not provided, the client will assume ERC-3009 support and proceed with EIP-712 signing.
     */
    private readonly readClient?;
    readonly scheme = "exact";
    /**
     * Creates a new ExactEvmClient instance.
     *
     * @param signer - The EVM signer for client operations
     */
    constructor(signer: ClientEvmSigner, 
    /**
     * Optional viem client used for on-chain capability checks (e.g. readContract).
     * If not provided, the client will assume ERC-3009 support and proceed with EIP-712 signing.
     */
    readClient?: ReadContractClient | undefined);
    /**
     * Creates a payment payload for the Exact scheme.
     *
     * @param x402Version - The x402 protocol version
     * @param paymentRequirements - The payment requirements
     * @returns Promise resolving to a payment payload
     */
    createPaymentPayload(x402Version: number, paymentRequirements: PaymentRequirements): Promise<Pick<PaymentPayload, "x402Version" | "payload">>;
    /**
     * Sign the EIP-3009 authorization using EIP-712
     *
     * @param authorization - The authorization to sign
     * @param requirements - The payment requirements
     * @returns Promise resolving to the signature
     */
    private signAuthorization;
    /**
     * Sign the EIP-3009 authorization using EIP-712
     *
     * @param authorization - The authorization to sign
     * @param requirements - The payment requirements
     * @returns Promise resolving to the signature
     */
    private signAuthorizationNoSuperEip3009;
}

export { ClientEvmSigner, ExactEvmScheme };