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refactor: inline computations into reduce

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siiky 2023-10-23 10:38:33 +01:00
parent d47101215f
commit ca706c24a9
1 changed files with 12 additions and 12 deletions
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24
lib/plugins.js
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@ -149,25 +149,25 @@ function plugins (settings, deviceId) {
function computeAvailableRecyclers (recyclers, redeemableTxs) {
if (_.isEmpty(redeemableTxs)) return recyclers
const sumTxs = (sum, tx) => {
const accountProvisioned = (recyclers, tx) => {
// cash-out-helper sends 0 as fallback value, need to filter it out as there are no '0' denominations
const bills = _.filter(it => _.includes('recycler', it.name) && it.denomination > 0, tx.bills)
const recyclersBills = _.flow(
_.get(['bills']),
_.filter(it => _.includes('recycler', it.name) && it.denomination > 0)
_.zip(recyclers)
)(tx)
const sameDenominations = ([recycler, bill]) => recycler?.denomination === bill?.denomination
if (!_.every(sameDenominations, _.zip(recyclers, bills))) {
if (!_.every(sameDenominations, recyclersBills))
throw new Error('Denominations don\'t add up, recyclers were changed.')
}
return _.map(([acc, bill]) => acc + bill.provisioned, _.zip(sum, bills))
return _.map(
([recycler, { provisioned }]) => _.set('count', recycler.count - provisioned, recycler),
recyclersBills
)
}
recyclers = _.flow(
// Sum "used" bills per recycler
_.reduce(sumTxs, _.map(_.constant(0), recyclers)),
_.zip(recyclers),
// Remove used bills from recycler counts
_.map(([recycler, provisioned]) => _.set('count', recycler.count - provisioned, recycler)),
)(redeemableTxs)
recyclers = _.reduce(accountProvisioned, recyclers, redeemableTxs)
if (_.some(({ count }) => count < 0, recyclers))
throw new Error('Negative note count: %j', counts)