import { SchemeNetworkServer, Network, MoneyParser, Price, AssetAmount, PaymentRequirements } from '@x402/core/types';

type ExactX402xEvmServerAssetConfig = {
    address: `0x${string}`;
    decimals: number;
    /**
     * 可选：写入 requirements.extra，用于客户端/促进方签名与校验
     * （缺失时，本包的 client/facilitator 会尝试链上读取）
     */
    name?: string;
    version?: string;
};
/**
 * x402x EVM server implementation for x402 "exact" scheme.
 *
 * 重点：提供资产注册能力（BSC/USD1 等）。
 */
declare class ExactX402xEvmServer implements SchemeNetworkServer {
    readonly scheme: "exact:eip7702";
    private moneyParsers;
    private readonly assets;
    private readonly defaultAssetByNetwork;
    /**
     * 注册一个网络默认资产（用于 Money 价格转换）。
     *
     * @param network - CAIP-2 网络，如 "eip155:56"
     * @param symbol - 资产符号（仅用于本地 key）
     * @param config - 资产配置
     * @returns The server instance for chaining
     */
    registerAsset(network: Network, symbol: string, config: ExactX402xEvmServerAssetConfig): this;
    /**
     * 设置某个网络的默认资产符号（必须已 registerAsset）。
     *
     * @param network - CAIP-2 网络，如 "eip155:56"
     * @param symbol - 资产符号
     * @returns The server instance for chaining
     */
    setDefaultAsset(network: Network, symbol: string): this;
    /**
     * 注册一个 Money 价格转换器。
     *
     * @param parser - 价格转换器
     * @returns The server instance for chaining
     */
    registerMoneyParser(parser: MoneyParser): this;
    /**
     * 解析一个价格并转换为资产金额。
     *
     * @param price - 价格
     * @param network - CAIP-2 网络
     * @returns The asset amount
     */
    parsePrice(price: Price, network: Network): Promise<AssetAmount>;
    /**
     * Build payment requirements for this scheme/network combination
     *
     * @param paymentRequirements - The base payment requirements
     * @param supportedKind - The supported kind from facilitator (unused)
     * @param supportedKind.x402Version - The x402 version
     * @param supportedKind.scheme - The logical payment scheme
     * @param supportedKind.network - The network identifier in CAIP-2 format
     * @param supportedKind.extra - Optional extra metadata regarding scheme/network implementation details
     * @param extensionKeys - Extension keys supported by the facilitator (unused)
     * @returns Payment requirements ready to be sent to clients
     */
    enhancePaymentRequirements(paymentRequirements: PaymentRequirements, supportedKind: {
        x402Version: number;
        scheme: string;
        network: Network;
        extra?: Record<string, unknown>;
    }, extensionKeys: string[]): Promise<PaymentRequirements>;
    /**
     * Parse money to decimal.
     *
     * @param money - The money to parse (e.g., "$1.50")
     * @returns The amount in decimal
     */
    private parseMoneyToDecimal;
    /**
     * Default money conversion implementation.
     *
     * @param amount - The amount in decimal (e.g., 1.50)
     * @param network - The network identifier in CAIP-2 format
     * @returns The asset amount
     */
    private defaultMoneyConversion;
    /**
     * Convert decimal amount to token amount.
     *
     * @param decimalAmount - The amount in decimal (e.g., 1.50)
     * @param decimals - The number of decimals
     * @returns The amount in token
     */
    private convertToTokenAmount;
    /**
     * Get the asset config for a network and symbol.
     *
     * @param network - The network identifier in CAIP-2 format
     * @param symbol - The symbol of the asset
     * @returns The asset config
     */
    private getAsset;
    /**
     * Generate a unique asset key for a network and symbol.
     *
     * @param network - The network identifier in CAIP-2 format
     * @param symbol - The symbol of the asset
     * @returns The asset key
     */
    private assetKey;
}

export { ExactX402xEvmServer as E, type ExactX402xEvmServerAssetConfig as a };