{"version":3,"sources":["../../../../src/exact/server/scheme.ts","../../../../src/exact/server/register.ts"],"sourcesContent":["import {\n  AssetAmount,\n  Network,\n  PaymentFlowConfig,\n  PaymentRequirements,\n  Price,\n  SchemeNetworkServer,\n  MoneyParser,\n} from \"@bankofai/x402-core/types\";\nimport { convertToTokenAmount, parseMoney } from \"@bankofai/x402-core/utils\";\nimport { findDefaultAsset, getDefaultAsset, type ExactDefaultAssetInfo } from \"../../defaultAssets\";\nimport type { AssetTransferMethod } from \"../../types\";\n\n/**\n * EVM server implementation for the Exact payment scheme.\n */\nexport class ExactEvmScheme implements SchemeNetworkServer {\n  readonly scheme = \"exact\";\n  readonly defaultAssetTransferMethod: AssetTransferMethod = \"eip3009\";\n  readonly paymentFlows = {\n    eip3009: { supported: [\"authorization\"], default: \"authorization\" },\n    permit2: { supported: [\"authorization\"], default: \"authorization\" },\n  } as const satisfies Record<AssetTransferMethod, PaymentFlowConfig>;\n  private moneyParsers: MoneyParser[] = [];\n\n  /**\n   * Register a custom money parser in the parser chain.\n   * Multiple parsers can be registered - they will be tried in registration order.\n   * Each parser receives a decimal amount (e.g., 1.50 for $1.50).\n   * If a parser returns null, the next parser in the chain will be tried.\n   * The default parser is always the final fallback.\n   *\n   * @param parser - Custom function to convert amount to AssetAmount (or null to skip)\n   * @returns The server instance for chaining\n   *\n   * @example\n   * evmServer.registerMoneyParser(async (amount, network) => {\n   *   // Custom conversion logic\n   *   if (Number(amount) > 100) {\n   *     // Use different token for large amounts\n   *     return { amount: convertToTokenAmount(String(amount), 18), asset: \"0xCustomToken\" };\n   *   }\n   *   return null; // Use next parser\n   * });\n   */\n  registerMoneyParser(parser: MoneyParser): ExactEvmScheme {\n    this.moneyParsers.push(parser);\n    return this;\n  }\n\n  /**\n   * Decimals for a known default asset, or undefined.\n   *\n   * @param asset - Asset address or symbol\n   * @param network - Target network\n   * @returns Decimals when the asset is a known default; otherwise undefined\n   */\n  getAssetDecimals(asset: string, network: Network): number | undefined {\n    return findDefaultAsset(asset, network)?.decimals;\n  }\n\n  /**\n   * Parses a price into an asset amount.\n   * If price is already an AssetAmount, returns it directly.\n   * If price is Money (string | number), parses to decimal and tries custom parsers.\n   * Falls back to default conversion if all custom parsers return null.\n   *\n   * @param price - The price to parse\n   * @param network - The network to use\n   * @returns Promise that resolves to the parsed asset amount\n   */\n  async parsePrice(price: Price, network: Network): Promise<AssetAmount> {\n    // If already an AssetAmount, return it directly\n    if (typeof price === \"object\" && price !== null && \"amount\" in price) {\n      if (!price.asset) {\n        throw new Error(`Asset address must be specified for AssetAmount on network ${network}`);\n      }\n      return {\n        amount: price.amount,\n        asset: price.asset,\n        extra: price.extra || {},\n      };\n    }\n\n    const { amount, symbol } = parseMoney(price);\n\n    // Try each custom money parser in order\n    for (const parser of this.moneyParsers) {\n      const result = await parser(amount, network);\n      if (result !== null) {\n        return result;\n      }\n    }\n\n    // All custom parsers returned null, use default conversion\n    return this.defaultMoneyConversion(amount, network, symbol);\n  }\n\n  /**\n   * Build payment requirements for this scheme/network combination\n   *\n   * @param paymentRequirements - The base payment requirements\n   * @param supportedKind - The supported kind from facilitator (unused)\n   * @param supportedKind.x402Version - The x402 version\n   * @param supportedKind.scheme - The logical payment scheme\n   * @param supportedKind.network - The network identifier in CAIP-2 format\n   * @param supportedKind.extra - Optional extra metadata regarding scheme/network implementation details\n   * @param extensionKeys - Extension keys supported by the facilitator (unused)\n   * @returns Payment requirements ready to be sent to clients\n   */\n  enhancePaymentRequirements(\n    paymentRequirements: PaymentRequirements,\n    supportedKind: {\n      x402Version: number;\n      scheme: string;\n      network: Network;\n      extra?: Record<string, unknown>;\n    },\n    extensionKeys: string[],\n  ): Promise<PaymentRequirements> {\n    // Mark unused parameters to satisfy linter\n    void supportedKind;\n    void extensionKeys;\n    return Promise.resolve(paymentRequirements);\n  }\n\n  /**\n   * Converts a numeric dollar amount to an AssetAmount using the default token for the network.\n   *\n   * @param amount - The decimal amount as a string\n   * @param network - The target network\n   * @param symbol - Optional ticker from a suffixed price\n   * @returns The converted asset amount with token metadata\n   */\n  private defaultMoneyConversion(amount: string, network: Network, symbol?: string): AssetAmount {\n    const assetInfo: ExactDefaultAssetInfo = getDefaultAsset(network, symbol);\n    const tokenAmount = convertToTokenAmount(amount, assetInfo.decimals);\n\n    // EIP-3009 tokens always need name/version for their transferWithAuthorization domain.\n    // Permit2 tokens only need them if the token supports EIP-2612 (for gasless permit signing).\n    // Omitting name/version for permit2 tokens signals the client to skip EIP-2612 and use\n    // ERC-20 approval gas sponsoring instead.\n    const includeEip712Domain = !assetInfo.assetTransferMethod || assetInfo.supportsEip2612;\n\n    return {\n      amount: tokenAmount,\n      asset: assetInfo.asset,\n      extra: {\n        ...(includeEip712Domain && {\n          name: assetInfo.name,\n          version: assetInfo.version,\n        }),\n        ...(assetInfo.assetTransferMethod && {\n          assetTransferMethod: assetInfo.assetTransferMethod,\n        }),\n      },\n    };\n  }\n}\n","import { x402ResourceServer } from \"@bankofai/x402-core/server\";\nimport { Network } from \"@bankofai/x402-core/types\";\nimport { ExactEvmScheme } from \"./scheme\";\n\n/**\n * Configuration options for registering EVM schemes to an x402ResourceServer\n */\nexport interface EvmResourceServerConfig {\n  /**\n   * Optional specific networks to register\n   * If not provided, registers wildcard support (eip155:*)\n   */\n  networks?: Network[];\n}\n\n/**\n * Registers EVM exact payment schemes to an x402ResourceServer instance.\n *\n * This function registers:\n * - V2: eip155:* wildcard scheme with ExactEvmScheme (or specific networks if provided)\n *\n * @param server - The x402ResourceServer instance to register schemes to\n * @param config - Configuration for EVM resource server registration\n * @returns The server instance for chaining\n *\n * @example\n * ```typescript\n * import { registerExactEvmScheme } from \"@bankofai/x402-evm/exact/server/register\";\n * import { x402ResourceServer } from \"@bankofai/x402-core/server\";\n *\n * const server = new x402ResourceServer(facilitatorClient);\n * registerExactEvmScheme(server, {});\n * ```\n */\nexport function registerExactEvmScheme(\n  server: x402ResourceServer,\n  config: EvmResourceServerConfig = {},\n): x402ResourceServer {\n  // Register V2 scheme\n  if (config.networks && config.networks.length > 0) {\n    // Register specific networks\n    config.networks.forEach(network => {\n      server.register(network, new ExactEvmScheme());\n    });\n  } else {\n    // Register wildcard for all EVM chains\n    server.register(\"eip155:*\", new ExactEvmScheme());\n  }\n\n  return server;\n}\n"],"mappings":";;;;;;;AASA,SAAS,sBAAsB,kBAAkB;AAO1C,IAAM,iBAAN,MAAoD;AAAA,EAApD;AACL,SAAS,SAAS;AAClB,SAAS,6BAAkD;AAC3D,SAAS,eAAe;AAAA,MACtB,SAAS,EAAE,WAAW,CAAC,eAAe,GAAG,SAAS,gBAAgB;AAAA,MAClE,SAAS,EAAE,WAAW,CAAC,eAAe,GAAG,SAAS,gBAAgB;AAAA,IACpE;AACA,SAAQ,eAA8B,CAAC;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA,EAsBvC,oBAAoB,QAAqC;AACvD,SAAK,aAAa,KAAK,MAAM;AAC7B,WAAO;AAAA,EACT;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA,EASA,iBAAiB,OAAe,SAAsC;AACpE,WAAO,iBAAiB,OAAO,OAAO,GAAG;AAAA,EAC3C;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA,EAYA,MAAM,WAAW,OAAc,SAAwC;AAErE,QAAI,OAAO,UAAU,YAAY,UAAU,QAAQ,YAAY,OAAO;AACpE,UAAI,CAAC,MAAM,OAAO;AAChB,cAAM,IAAI,MAAM,8DAA8D,OAAO,EAAE;AAAA,MACzF;AACA,aAAO;AAAA,QACL,QAAQ,MAAM;AAAA,QACd,OAAO,MAAM;AAAA,QACb,OAAO,MAAM,SAAS,CAAC;AAAA,MACzB;AAAA,IACF;AAEA,UAAM,EAAE,QAAQ,OAAO,IAAI,WAAW,KAAK;AAG3C,eAAW,UAAU,KAAK,cAAc;AACtC,YAAM,SAAS,MAAM,OAAO,QAAQ,OAAO;AAC3C,UAAI,WAAW,MAAM;AACnB,eAAO;AAAA,MACT;AAAA,IACF;AAGA,WAAO,KAAK,uBAAuB,QAAQ,SAAS,MAAM;AAAA,EAC5D;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA,EAcA,2BACE,qBACA,eAMA,eAC8B;AAE9B,SAAK;AACL,SAAK;AACL,WAAO,QAAQ,QAAQ,mBAAmB;AAAA,EAC5C;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA,EAUQ,uBAAuB,QAAgB,SAAkB,QAA8B;AAC7F,UAAM,YAAmC,gBAAgB,SAAS,MAAM;AACxE,UAAM,cAAc,qBAAqB,QAAQ,UAAU,QAAQ;AAMnE,UAAM,sBAAsB,CAAC,UAAU,uBAAuB,UAAU;AAExE,WAAO;AAAA,MACL,QAAQ;AAAA,MACR,OAAO,UAAU;AAAA,MACjB,OAAO;AAAA,QACL,GAAI,uBAAuB;AAAA,UACzB,MAAM,UAAU;AAAA,UAChB,SAAS,UAAU;AAAA,QACrB;AAAA,QACA,GAAI,UAAU,uBAAuB;AAAA,UACnC,qBAAqB,UAAU;AAAA,QACjC;AAAA,MACF;AAAA,IACF;AAAA,EACF;AACF;;;AC5HO,SAAS,uBACd,QACA,SAAkC,CAAC,GACf;AAEpB,MAAI,OAAO,YAAY,OAAO,SAAS,SAAS,GAAG;AAEjD,WAAO,SAAS,QAAQ,aAAW;AACjC,aAAO,SAAS,SAAS,IAAI,eAAe,CAAC;AAAA,IAC/C,CAAC;AAAA,EACH,OAAO;AAEL,WAAO,SAAS,YAAY,IAAI,eAAe,CAAC;AAAA,EAClD;AAEA,SAAO;AACT;","names":[]}