82 lines
2.8 KiB
JavaScript
82 lines
2.8 KiB
JavaScript
// verify k1 exists
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// send back
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import models from '../../api/models'
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import { datePivot } from '../../lib/time'
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import lnd from '../../api/lnd'
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import { createWithdrawal } from '../../api/resolvers/wallet'
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export default async ({ query, headers }, res) => {
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if (!query.k1) {
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return res.status(400).json({ status: 'ERROR', reason: 'k1 not provided' })
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}
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if (query.pr) {
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try {
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return await doWithdrawal(query, res, headers)
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} catch (e) {
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return res.status(400).json({ status: 'ERROR', reason: e.message })
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}
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}
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let reason
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try {
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const lnwith = await models.lnWith.findFirst({
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where: {
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k1: query.k1,
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createdAt: {
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gt: datePivot(new Date(), { hours: -1 })
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}
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}
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})
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if (lnwith) {
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const user = await models.user.findUnique({ where: { id: lnwith.userId } })
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if (user) {
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return res.status(200).json({
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tag: 'withdrawRequest', // type of LNURL
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callback: process.env.LNWITH_URL, // The URL which LN SERVICE would accept a withdrawal Lightning invoice as query parameter
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k1: query.k1, // Random or non-random string to identify the user's LN WALLET when using the callback URL
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defaultDescription: `Withdrawal for @${user.name} on SN`, // A default withdrawal invoice description
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minWithdrawable: user.msats >= 1000n ? 1000 : 0, // Min amount (in millisatoshis) the user can withdraw from LN SERVICE
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maxWithdrawable: Math.max(Number(user.msats - 10000n), 0) // Max amount (in millisatoshis) the user can withdraw from LN SERVICE
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})
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} else {
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reason = 'user not found'
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}
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} else {
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reason = 'withdrawal not found'
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}
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} catch (error) {
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console.log(error)
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reason = 'internal server error'
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}
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console.log(reason)
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return res.status(400).json({ status: 'ERROR', reason })
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}
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async function doWithdrawal (query, res, headers) {
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const lnwith = await models.lnWith.findUnique({ where: { k1: query.k1 } })
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if (!lnwith) {
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return res.status(400).json({ status: 'ERROR', reason: 'invalid k1' })
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}
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const me = await models.user.findUnique({ where: { id: lnwith.userId } })
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if (!me) {
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return res.status(400).json({ status: 'ERROR', reason: 'user not found' })
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}
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try {
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const withdrawal = await createWithdrawal(null,
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{ invoice: query.pr, maxFee: me.withdrawMaxFeeDefault },
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{ me, models, lnd, headers })
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// store withdrawal id lnWith so client can show it
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await models.lnWith.update({ where: { k1: query.k1 }, data: { withdrawalId: Number(withdrawal.id) } })
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return res.status(200).json({ status: 'OK' })
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} catch (e) {
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console.log(e)
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return res.status(400).json({ status: 'ERROR', reason: e.message || e.toString?.() || 'error creating withdrawal' })
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}
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}
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