修改充值流程， approval在足够的情况下， 只调用一次

src/wallet/BitgetWallet.js

@@ -1,8 +1,8 @@
 import { providers } from "ethers"
 import { signLogin } from './utils.js'
 import { apiPreRecharge } from "./../utils/request.js"
-import { switchEthereumChain } from './utils.js'
-
+import { switchEthereumChain, queryAllowance } from './utils.js'
+import { FirebaseUtil } from "@/utils/firebase.util";
 
 export class BitgetWallet{
   constructor() {
@@ -23,7 +23,7 @@ export class BitgetWallet{
       params: [{
         from,
         to,
-        data
+        data,
       }]
     })
     // console.log(txHash)
@@ -76,14 +76,25 @@ export class BitgetWallet{
       throw new Error(errmsg)
     }
     if (!calls || calls.length == 0) {
+      new FirebaseUtil().uploadEvent('charge_nocall', data)
       throw new Error('no calls')
     }
     await this.checkAndChangeChain(data.net_id, provider)
     let resutls = []
-    for (let i = 0; i < calls.length; i++) {
-      const { to, data } = calls[i].trans_req
-      let hash = await this.sendTransaction(provider, {from: data.account_address, to, data})
-      resutls.push(hash)
+    let user = data.account_address
+    if (calls.length > 1) {
+      const contractAddress = calls[1].trans_req.to
+      // get calls[1].data last 32 bytes
+      const amount = BigInt(parseInt(calls[0].trans_req.data.slice(-64), 16))
+      let allowance = await queryAllowance(provider, calls[0].trans_req.to, user, contractAddress)
+      if (allowance < amount) {
+        let hash = await this.sendTransaction(provider, {from: user, to: calls[0].trans_req.to, data: calls[0].trans_req.data})
+        resutls.push(hash)
+      }
+      let hash2 = await this.sendTransaction(provider, {from: user, to: contractAddress, data: calls[1].trans_req.data})
+      resutls.push(hash2)
+    } else {
+      throw new Error('no enough calls')
     }
     return resutls
   }

src/wallet/utils.js

@@ -151,6 +151,11 @@ export function toHexChainId(chainId) {
   return '0x' + chainId.toString(16)
 }
 
+export function queryAllowance(provider, token, owner, spender) {
+  const contract = new ethers.Contract(token, ['function allowance(address,address) view returns (uint256)'], provider);
+  return contract.allowance(owner, spender);
+}
+
 export const switchEthereumChain = async (provider, targetChainId) => {
 let chainCfg;
 for (const d of AllChains) {