import { encodeAbiParameters } from "../utils/abi/encodeAbiParameters.js";
import { concatHex } from "../utils/encoding/helpers/concat-hex.js";
import type { Hex } from "../utils/encoding/hex.js";
import { ERC_6492_MAGIC_VALUE } from "./constants.js";
import type { Erc6492Signature } from "./types.js";

/**
 * Serializes a signature for use with [ERC-6492](https://eips.ethereum.org/EIPS/eip-6492). The signature must be generated by a signer for an [ERC-4337](https://eips.ethereum.org/EIPS/eip-4337) Account Factory account with counterfactual deployment addresses.
 *
 * @param {@link Erc6492Signature} signature  The signature object to serialize into Hex format
 * @param {string} signature.address The ERC-4337 Account Factory address
 * @param {Hex} signature.data Account deployment calldata (if not deployed) for counterfactual verification
 * @param {Hex} signature.signature The original signature
 *
 * @returns {Hex} The serialized signature
 *
 * @example
 * ```ts
 * import { serializeErc6492Signature } from 'thirdweb/auth';
 *
 * const serializedSignature = serializeErc6492Signature({
 *  address: '0x...',
 *  data: '0x...',
 *  signature: '0x...',
 * });
 * // 0x000000000000000000000000cafebabecafebabecafebabecafebabecafebabe000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000004deadbeef000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000041a461f509887bd19e312c0c58467ce8ff8e300d3c1a90b608a760c5b80318eaf15fe57c96f9175d6cd4daad4663763baa7e78836e067d0163e9a2ccf2ff753f5b1b000000000000000000000000000000000000000000000000000000000000006492649264926492649264926492649264926492649264926492649264926492
 * ```
 * @auth
 */
export function serializeErc6492Signature({
  address,
  data,
  signature,
}: Erc6492Signature): Hex {
  return concatHex([
    encodeAbiParameters(
      [{ type: "address" }, { type: "bytes" }, { type: "bytes" }],
      [address, data, signature],
    ),
    ERC_6492_MAGIC_VALUE,
  ]);
}