lndhub/class/Invo.js
2020-05-04 15:11:26 +01:00

88 lines
2.5 KiB
JavaScript

var lightningPayReq = require('bolt11');
export class Invo {
constructor(redis, bitcoindrpc, lightning) {
this._redis = redis;
this._bitcoindrpc = bitcoindrpc;
this._lightning = lightning;
this._decoded = false;
this._bolt11 = false;
this._isPaid = null;
}
setInvoice(bolt11) {
this._bolt11 = bolt11;
}
async getIsMarkedAsPaidInDatabase() {
if (!this._bolt11) throw new Error('bolt11 is not provided');
const decoded = lightningPayReq.decode(this._bolt11);
let paymentHash = false;
for (const tag of decoded.tags) {
if (tag.tagName === 'payment_hash') {
paymentHash = tag.data;
}
}
if (!paymentHash) throw new Error('Could not find payment hash in invoice tags');
return await this._getIsPaymentHashMarkedPaidInDatabase(paymentHash);
}
async markAsPaidInDatabase() {
if (!this._bolt11) throw new Error('bolt11 is not provided');
const decoded = lightningPayReq.decode(this._bolt11);
let paymentHash = false;
for (const tag of decoded.tags) {
if (tag.tagName === 'payment_hash') {
paymentHash = tag.data;
}
}
if (!paymentHash) throw new Error('Could not find payment hash in invoice tags');
return await this._setIsPaymentHashPaidInDatabase(paymentHash, true);
}
async markAsUnpaidInDatabase() {
if (!this._bolt11) throw new Error('bolt11 is not provided');
const decoded = lightningPayReq.decode(this._bolt11);
let paymentHash = false;
for (const tag of decoded.tags) {
if (tag.tagName === 'payment_hash') {
paymentHash = tag.data;
}
}
if (!paymentHash) throw new Error('Could not find payment hash in invoice tags');
return await this._setIsPaymentHashPaidInDatabase(paymentHash, false);
}
async _setIsPaymentHashPaidInDatabase(paymentHash, isPaid) {
if (isPaid) {
return await this._redis.set('ispaid_' + paymentHash, 1);
} else {
return await this._redis.del('ispaid_' + paymentHash);
}
}
async _getIsPaymentHashMarkedPaidInDatabase(paymentHash) {
return await this._redis.get('ispaid_' + paymentHash);
}
/**
* Queries LND ofr all user invoices
*
* @return {Promise<array>}
*/
async listInvoices() {
return new Promise((resolve, reject) => {
this._lightning.listInvoices(
{
num_max_invoices: 99000111,
reversed: true,
},
function(err, response) {
if (err) return reject(err);
resolve(response);
},
);
});
}
}