const db = require('./db')

function blocked (address, cryptoCode) {
  const sql = `select * from blacklist where address = $1 and crypto_code = $2`
  return db.oneOrNone(sql, [
    address,
    cryptoCode
  ])
}

function addToUsedAddresses (address, cryptoCode) {
  // ETH reuses addresses
  if (cryptoCode === 'ETH') return Promise.resolve()

  const sql = `insert into blacklist(crypto_code, address, created_by_operator) values ($1, $2, 'f')`
  return db.oneOrNone(sql, [
    cryptoCode,
    address
  ])
}

module.exports = { blocked, addToUsedAddresses }