const _ = require('lodash/fp')
const BN = require('./bn')
const CashInTx = require('./cash-in-tx')
const CashOutTx = require('./cash-out-tx')

function post (tx, pi) {
  const mtx = massage(tx)
  if (mtx.direction === 'cashIn') return CashInTx.post(mtx, pi)
  if (mtx.direction === 'cashOut') return CashOutTx.post(mtx, pi)

  return Promise.reject(new Error('No such tx direction: ' + mtx.direction))
}

function massage (tx) {
  const isDateField = r => r === 'created' || _.endsWith('_time', r)
  const transformDate = (v, k) => isDateField(k) ? new Date(v) : v
  const mapValuesWithKey = _.mapValues.convert({'cap': false})
  const transformDates = r => mapValuesWithKey(transformDate, r)
  const mapBN = r => _.assign(r, {cryptoAtoms: BN(r.cryptoAtoms), fiat: BN(r.fiat)})
  const mapper = _.flow(transformDates, mapBN)

  return mapper(tx)
}

module.exports = {post}