mars-v2-frontend/hooks/useCreateCreditAccount.tsx

import { SigningCosmWasmClient } from '@cosmjs/cosmwasm-stargate'
import { useMutation, useQueryClient } from '@tanstack/react-query'
import { useEffect, useState } from 'react'
import { toast } from 'react-toastify'

import useWalletStore from 'stores/useWalletStore'
import { chain } from 'utils/chains'
import { contractAddresses } from 'config/contracts'
import { hardcodedFee } from 'utils/contants'
import useCreditManagerStore from 'stores/useCreditManagerStore'
import { queryKeys } from 'types/query-keys-factory'

// 200000 gas used
const executeMsg = {
  create_credit_account: {},
}

const useCreateCreditAccount = () => {
  const [signingClient, setSigningClient] = useState<SigningCosmWasmClient>()
  const setSelectedAccount = useCreditManagerStore((s) => s.actions.setSelectedAccount)
  const address = useWalletStore((s) => s.address)

  const queryClient = useQueryClient()

  useEffect(() => {
    ;(async () => {
      if (!window.keplr) return

      const offlineSigner = window.keplr.getOfflineSigner(chain.chainId)
      const clientInstance = await SigningCosmWasmClient.connectWithSigner(chain.rpc, offlineSigner)

      setSigningClient(clientInstance)
    })()
  }, [address])

  return useMutation(
    async () =>
      await signingClient?.execute(
        address,
        contractAddresses.creditManager,
        executeMsg,
        hardcodedFee
      ),
    {
      onSettled: () => {
        queryClient.invalidateQueries(queryKeys.creditAccounts(address))
      },
      onError: (err: Error) => {
        toast.error(err.message)
      },
      onSuccess: (data) => {
        if (!data) return

        // TODO: is there some better way to parse response to extract token id???
        const createdID = data.logs[0].events[2].attributes[6].value
        setSelectedAccount(createdID)
        toast.success('New account created')
      },
    }
  )
}

export default useCreateCreditAccount