File structure improvements

src/crypt/signCancelOrder.ts

@@ -0,0 +1,49 @@
+/* eslint-disable no-underscore-dangle */
+import { TypedDataSigner } from '@ethersproject/abstract-signer';
+import { ethers } from 'ethers';
+import { joinSignature, splitSignature } from 'ethers/lib/utils';
+import CANCEL_ORDER_TYPES from '../constants/cancelOrderTypes';
+import { CancelOrderRequest, SignedCancelOrderRequest, SupportedChainId } from '../types';
+import getDomainData from './getDomainData';
+import signCancelOrderPersonal from './signCancelOrderPersonal';
+
+type SignerWithTypedDataSign = ethers.Signer & TypedDataSigner;
+
+const signCancelOrder = async (
+  senderAddress: string,
+  id: string,
+  usePersonalSign: boolean,
+  signer: ethers.Signer,
+  chainId: SupportedChainId,
+) => {
+  const cancelOrderRequest: CancelOrderRequest = {
+    id,
+    senderAddress,
+    isPersonalSign: usePersonalSign,
+  };
+  // eslint-disable-next-line @typescript-eslint/consistent-type-assertions
+  const typedDataSigner = signer as SignerWithTypedDataSign;
+
+  const signature = usePersonalSign
+    ? await signCancelOrderPersonal(cancelOrderRequest, signer)
+  // https://docs.ethers.io/v5/api/signer/#Signer-signTypedData
+    : await typedDataSigner._signTypedData(
+      getDomainData(chainId),
+      CANCEL_ORDER_TYPES,
+      cancelOrderRequest,
+    );
+
+  // https://github.com/poap-xyz/poap-fun/pull/62#issue-928290265
+  // "Signature's v was always send as 27 or 28, but from Ledger was 0 or 1"
+  const fixedSignature = joinSignature(splitSignature(signature));
+
+  if (!fixedSignature) throw new Error("Can't sign order cancel");
+
+  const signedCancelOrderReqeust: SignedCancelOrderRequest = {
+    ...cancelOrderRequest,
+    signature: fixedSignature,
+  };
+  return signedCancelOrderReqeust;
+};
+
+export default signCancelOrder;