HWRP - Withdrawing from bank account

bank_account.sma

  new authid[32], query[256]
  get_user_authid(id,authid,31)
  format( query, 255, "SELECT wallet FROM money WHERE steamid='%s'", authid)
  result = dbi_query(dbc,query)
  if( dbi_nextrow( result ) > 0 )
  {
    new buffer[32],wallet
    dbi_field(result,1,buffer,31)
    dbi_free_result(result)
    wallet = str_to_num(buffer)
    if(wallet < amount || amount == 0)
    {
      client_print(id,print_chat,"[Bank] You dont have enough money in your wallet!^n")
      return PLUGIN_HANDLED
    }
    else
    {
      format( query, 255, "UPDATE money SET wallet=wallet-%i WHERE steamid='%s'", amount, authid)
      dbi_query( dbc, query)
      format( query, 255, "UPDATE money SET balance=balance+%i WHERE steamid='%s'", amount, authid)
      dbi_query( dbc, query)
      client_print( id, print_chat,"[Bank] You have deposited $%i in your bank balance^n", amount)
      return PLUGIN_HANDLED
    }
  }
  dbi_free_result(result)