"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.signBatchAttestation = signBatchAttestation;
exports.normalizeEcdsaSignature = normalizeEcdsaSignature;
const ethers_1 = require("ethers");
const BATCH_ATTESTATION_TYPES = {
    BatchAttestation: [
        { name: 'chainId', type: 'uint64' },
        { name: 'batchId', type: 'uint64' },
        { name: 'checkpointBlock', type: 'uint256' },
        { name: 'blockHash', type: 'bytes32' },
        { name: 'stateRoot', type: 'bytes32' },
        { name: 'paymentsRoot', type: 'bytes32' },
        { name: 'previousBatchId', type: 'uint64' },
    ],
};
/** Matches CheckpointEIP712.digest / ValidatorSigVerifierExtension.beforeSubmit. */
async function signBatchAttestation(wallet, verifyingContract, header) {
    const chainId = Number((await wallet.provider.getNetwork()).chainId);
    const domain = {
        name: 'Chain138MainnetCheckpoint',
        version: '2',
        chainId,
        verifyingContract,
    };
    const message = {
        chainId: header.chainId,
        batchId: header.batchId,
        checkpointBlock: header.checkpointBlock,
        blockHash: header.blockHash,
        stateRoot: header.stateRoot,
        paymentsRoot: header.paymentsRoot,
        previousBatchId: header.previousBatchId,
    };
    const sig = await wallet.signTypedData(domain, BATCH_ATTESTATION_TYPES, message);
    return normalizeEcdsaSignature(sig);
}
/** OpenZeppelin ECDSA.recover expects v=27|28; ethers v6 may return 0|1. */
function normalizeEcdsaSignature(sig) {
    const bytes = ethers_1.ethers.getBytes(sig);
    if (bytes.length !== 65)
        return sig;
    const v = bytes[64];
    if (v < 27)
        bytes[64] = v + 27;
    return ethers_1.ethers.hexlify(bytes);
}