mars-v2-frontend/hooks/useAllowedCoins.tsx

import { SigningCosmWasmClient } from '@cosmjs/cosmwasm-stargate'
import { useQuery } from '@tanstack/react-query'
import { useEffect, useState } from 'react'

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

type Result = string[]

const queryMsg = {
  allowed_coins: {},
}

const useAllowedCoins = () => {
  const [signingClient, setSigningClient] = useState<SigningCosmWasmClient>()
  const address = useWalletStore((s) => s.address)

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

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

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

  const result = useQuery<Result>(
    queryKeys.allowedCoins(),
    async () => signingClient?.queryContractSmart(contractAddresses.creditManager, queryMsg),
    {
      enabled: !!address && !!signingClient,
      staleTime: Infinity,
    }
  )

  return {
    ...result,
    data: result?.data,
  }
}

export default useAllowedCoins