47 lines
1.6 KiB
JavaScript
47 lines
1.6 KiB
JavaScript
import { msatsToSats, satsToMsats } from '@/lib/format'
|
|
import { createWithdrawal } from '@/api/resolvers/wallet'
|
|
import { createInvoice } from 'wallets/server'
|
|
|
|
export async function autoWithdraw ({ data: { id }, models, lnd }) {
|
|
const user = await models.user.findUnique({ where: { id } })
|
|
if (user.autoWithdrawThreshold === null || user.autoWithdrawMaxFeePercent === null) return
|
|
|
|
const threshold = satsToMsats(user.autoWithdrawThreshold)
|
|
const excess = Number(user.msats - threshold)
|
|
|
|
// excess must be greater than 10% of threshold
|
|
if (excess < Number(threshold) * 0.1) return
|
|
|
|
const maxFeeMsats = Math.ceil(excess * (user.autoWithdrawMaxFeePercent / 100.0))
|
|
const msats = excess - maxFeeMsats
|
|
|
|
// must be >= 1 sat
|
|
if (msats < 1000) return
|
|
|
|
// maxFee is expected to be in sats, ie "msatsFeePaying" is always divisible by 1000
|
|
const maxFee = msatsToSats(maxFeeMsats)
|
|
|
|
// check that
|
|
// 1. the user doesn't have an autowithdraw pending
|
|
// 2. we have not already attempted to autowithdraw this fee recently
|
|
const [pendingOrFailed] = await models.$queryRaw`
|
|
SELECT EXISTS(
|
|
SELECT *
|
|
FROM "Withdrawl"
|
|
WHERE "userId" = ${id} AND "autoWithdraw"
|
|
AND (status IS NULL
|
|
OR (
|
|
status <> 'CONFIRMED' AND
|
|
now() < created_at + interval '1 hour' AND
|
|
"msatsFeePaying" >= ${satsToMsats(maxFee)}
|
|
))
|
|
)`
|
|
|
|
if (pendingOrFailed.exists) return
|
|
|
|
const { invoice, wallet } = await createInvoice(id, { msats, description: 'SN: autowithdrawal', expiry: 360 }, { models })
|
|
return await createWithdrawal(null,
|
|
{ invoice, maxFee },
|
|
{ me: { id }, models, lnd, walletId: wallet.id })
|
|
}
|