add getTopics, decodeEvent

dist/utils/chain.util.d.cts

@@ -1,3 +1,5 @@
+import { AbiItem } from 'web3-utils';
+
 declare function recoverTypedSignatureV4(signObj: any, signature: string): string;
 declare function formatAddress(address: string): string;
 declare function buildLoginSignMsg(nonce: string, tips: string): {
@@ -35,5 +37,10 @@ declare const sign: ({ user, token, amount, saltNonce, }: {
 }>;
 declare function toEIP55(address: string): string;
 declare function checkPersionalSign(message: string, address: string, signature: string): boolean;
+declare const getTopics: (abi: AbiItem) => string;
+declare const decodeEvent: (abi: AbiItem, eventData: {
+    data: string;
+    topics: string[];
+}) => any;
 
-export { buildLoginSignMsg, checkPersionalSign, formatAddress, recoverTypedSignatureV4, sign, toEIP55 };
+export { buildLoginSignMsg, checkPersionalSign, decodeEvent, formatAddress, getTopics, recoverTypedSignatureV4, sign, toEIP55 };

dist/utils/chain.util.d.ts

@@ -1,3 +1,5 @@
+import { AbiItem } from 'web3-utils';
+
 declare function recoverTypedSignatureV4(signObj: any, signature: string): string;
 declare function formatAddress(address: string): string;
 declare function buildLoginSignMsg(nonce: string, tips: string): {
@@ -35,5 +37,10 @@ declare const sign: ({ user, token, amount, saltNonce, }: {
 }>;
 declare function toEIP55(address: string): string;
 declare function checkPersionalSign(message: string, address: string, signature: string): boolean;
+declare const getTopics: (abi: AbiItem) => string;
+declare const decodeEvent: (abi: AbiItem, eventData: {
+    data: string;
+    topics: string[];
+}) => any;
 
-export { buildLoginSignMsg, checkPersionalSign, formatAddress, recoverTypedSignatureV4, sign, toEIP55 };
+export { buildLoginSignMsg, checkPersionalSign, decodeEvent, formatAddress, getTopics, recoverTypedSignatureV4, sign, toEIP55 };

src/utils/chain.util.ts

@@ -1,9 +1,11 @@
 import { recoverTypedSignature, SignTypedDataVersion } from '@metamask/eth-sig-util'
-import { soliditySha3, toWei } from 'web3-utils'
+//@ts-ignore
+import { soliditySha3, toWei, keccak256, _jsonInterfaceMethodToString, AbiInput, AbiItem } from 'web3-utils'
 import { bytesToHex } from '@noble/hashes/utils'
 import { keccak_256 } from '@noble/hashes/sha3'
 import { recoverPersonalSignature } from '@metamask/eth-sig-util'
 import Web3 from 'web3'
+import web3abi from 'web3-eth-abi'
 
 export function recoverTypedSignatureV4(signObj: any, signature: string) {
   return recoverTypedSignature({
@@ -96,4 +98,38 @@ export function checkPersionalSign(message: string, address: string, signature:
   }
   const recovered = recoverPersonalSignature({ data: message, signature })
   return recovered === address
+}
+
+export const getTopics = (abi: AbiItem) => {
+  return keccak256(_jsonInterfaceMethodToString(abi))
+}
+
+export const decodeEvent = (abi: AbiItem, eventData: { data: string; topics: string[] }) => {
+  const abiInputs = abi.inputs
+  let result = web3abi.decodeLog(abiInputs, eventData.data, eventData.topics.slice(1))
+  let decodedData: any = {}
+  for (let i = 0; i < abiInputs.length; i++) {
+    const input: AbiInput = abiInputs[i]
+    if (input.type === 'tuple[]') {
+      // @ts-ignore
+      decodedData[input.name] = result[i].map(item => {
+        let itemData = {}
+        for (let j = 0; j < input.components.length; j++) {
+          const component = input.components[j]
+          itemData[component.name] = item[j]
+        }
+        return itemData
+      })
+    } else if (input.type === 'tuple') {
+      let itemData = {}
+      for (let j = 0; j < input.components.length; j++) {
+        const component = input.components[j]
+        itemData[component.name] = result[i][j]
+      }
+      decodedData[input.name] = itemData
+    } else {
+      decodedData[input.name] = result[i]
+    }
+  }
+  return decodedData
 }