RTL/backend/controllers/eclair/channels.js

import request from 'request-promise';
import { Logger } from '../../utils/logger.js';
import { Common } from '../../utils/common.js';
import { createInvoiceRequestCall, listPendingInvoicesRequestCall } from './invoices.js';
import { findRouteBetweenNodesRequestCall } from './network.js';
import { getSentInfoFromPaymentRequest, sendPaymentToRouteRequestCall } from './payments.js';
let options = null;
const logger = Logger;
const common = Common;
export const simplifyAllChannels = (selNode, channels) => {
    let channelNodeIds = '';
    const simplifiedChannels = [];
    channels.forEach((channel) => {
        channelNodeIds = channelNodeIds + ',' + channel.nodeId;
        simplifiedChannels.push({
            nodeId: channel.nodeId ? channel.nodeId : '',
            channelId: channel.channelId ? channel.channelId : '',
            state: channel.state ? channel.state : '',
            announceChannel: channel.data && channel.data.commitments && channel.data.commitments.channelFlags && channel.data.commitments.channelFlags.announceChannel ? channel.data.commitments.channelFlags.announceChannel : false,
            toLocal: (channel.data.commitments.localCommit.spec.toLocal) ? Math.round(+channel.data.commitments.localCommit.spec.toLocal / 1000) : 0,
            toRemote: (channel.data.commitments.localCommit.spec.toRemote) ? Math.round(+channel.data.commitments.localCommit.spec.toRemote / 1000) : 0,
            shortChannelId: channel.data && channel.data.channelUpdate && channel.data.channelUpdate.shortChannelId ? channel.data.channelUpdate.shortChannelId : '',
            isFunder: channel.data && channel.data.commitments && channel.data.commitments.localParams && channel.data.commitments.localParams.isFunder ? channel.data.commitments.localParams.isFunder : false,
            buried: channel.data && channel.data.buried ? channel.data.buried : false,
            feeBaseMsat: channel.data && channel.data.channelUpdate && channel.data.channelUpdate.feeBaseMsat ? channel.data.channelUpdate.feeBaseMsat : 0,
            feeRatePerKw: (channel.data.commitments.localCommit.spec.feeratePerKw) ? channel.data.commitments.localCommit.spec.feeratePerKw : 0,
            feeProportionalMillionths: channel.data && channel.data.channelUpdate && channel.data.channelUpdate.feeProportionalMillionths ? channel.data.channelUpdate.feeProportionalMillionths : 0,
            alias: ''
        });
    });
    channelNodeIds = channelNodeIds.substring(1);
    options.url = selNode.ln_server_url + '/nodes';
    options.form = { nodeIds: channelNodeIds };
    logger.log({ selectedNode: selNode, level: 'DEBUG', fileName: 'Channels', msg: 'Node Ids to find alias', data: channelNodeIds });
    return request.post(options).then((nodes) => {
        logger.log({ selectedNode: selNode, level: 'DEBUG', fileName: 'Channels', msg: 'Filtered Nodes Received', data: nodes });
        let foundPeer = null;
        simplifiedChannels?.map((channel) => {
            foundPeer = nodes.find((channelWithAlias) => channel.nodeId === channelWithAlias.nodeId);
            channel.alias = foundPeer ? foundPeer.alias : channel.nodeId.substring(0, 20);
            return channel;
        });
        return simplifiedChannels;
    }).catch((err) => simplifiedChannels);
};
export const getChannels = (req, res, next) => {
    logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Channels', msg: 'List Channels..' });
    options = common.getOptions(req);
    if (options.error) {
        return res.status(options.statusCode).json({ message: options.message, error: options.error });
    }
    options.url = req.session.selectedNode.ln_server_url + '/channels';
    options.form = {};
    if (req.query && req.query.nodeId) {
        options.form = req.query;
        logger.log({ selectedNode: req.session.selectedNode, level: 'DEBUG', fileName: 'Channels', msg: 'Channels Node Id', data: options.form });
    }
    logger.log({ selectedNode: req.session.selectedNode, level: 'DEBUG', fileName: 'Channels', msg: 'Options', data: options });
    if (common.read_dummy_data) {
        common.getDummyData('Channels', req.session.selectedNode.ln_implementation).then((data) => { res.status(200).json(data); });
    }
    else {
        request.post(options).then((body) => {
            logger.log({ selectedNode: req.session.selectedNode, level: 'DEBUG', fileName: 'Channels', msg: 'Channels List Received', data: body });
            if (body && body.length) {
                return simplifyAllChannels(req.session.selectedNode, body).then((simplifiedChannels) => {
                    logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Channels', msg: 'Simplified Channels with Alias Received', data: simplifiedChannels });
                    res.status(200).json(simplifiedChannels);
                });
            }
            else {
                logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Channels', msg: 'Empty Channels List Received' });
                res.status(200).json([]);
            }
        }).
            catch((errRes) => {
            const err = common.handleError(errRes, 'Channels', 'List Channels Error', req.session.selectedNode);
            return res.status(err.statusCode).json({ message: err.message, error: err.error });
        });
    }
};
export const getChannelStats = (req, res, next) => {
    logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Channels', msg: 'Getting Channel States..' });
    options = common.getOptions(req);
    if (options.error) {
        return res.status(options.statusCode).json({ message: options.message, error: options.error });
    }
    options.url = req.session.selectedNode.ln_server_url + '/channelstats';
    const today = new Date(Date.now());
    const tillToday = (Math.round(today.getTime() / 1000)).toString();
    const fromLastMonth = (Math.round(new Date(today.getFullYear(), today.getMonth() - 1, today.getDate() + 1, 0, 0, 0).getTime() / 1000)).toString();
    options.form = {
        from: fromLastMonth,
        to: tillToday
    };
    request.post(options).then((body) => {
        logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Channels', msg: 'Channel States Received', data: body });
        res.status(201).json(body);
    }).catch((errRes) => {
        const err = common.handleError(errRes, 'Channels', 'Get Channel Stats Error', req.session.selectedNode);
        return res.status(err.statusCode).json({ message: err.message, error: err.error });
    });
};
export const openChannel = (req, res, next) => {
    logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Channels', msg: 'Opening Channel..' });
    options = common.getOptions(req);
    if (options.error) {
        return res.status(options.statusCode).json({ message: options.message, error: options.error });
    }
    options.url = req.session.selectedNode.ln_server_url + '/open';
    options.form = req.body;
    logger.log({ selectedNode: req.session.selectedNode, level: 'DEBUG', fileName: 'Channels', msg: 'Open Channel Params', data: options.form });
    request.post(options).then((body) => {
        logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Channels', msg: 'Channel Opened', data: body });
        res.status(201).json(body);
    }).catch((errRes) => {
        const err = common.handleError(errRes, 'Channels', 'Open Channel Error', req.session.selectedNode);
        return res.status(err.statusCode).json({ message: err.message, error: err.error });
    });
};
export const updateChannelRelayFee = (req, res, next) => {
    logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Channels', msg: 'Updating Channel Relay Fee..' });
    options = common.getOptions(req);
    if (options.error) {
        return res.status(options.statusCode).json({ message: options.message, error: options.error });
    }
    options.url = req.session.selectedNode.ln_server_url + '/updaterelayfee';
    options.form = req.query;
    logger.log({ selectedNode: req.session.selectedNode, level: 'DEBUG', fileName: 'Channels', msg: 'Update Relay Fee Params', data: options.form });
    request.post(options).then((body) => {
        logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Channels', msg: 'Channel Relay Fee Updated', data: body });
        res.status(201).json(body);
    }).catch((errRes) => {
        const err = common.handleError(errRes, 'Channels', 'Update Relay Fee Error', req.session.selectedNode);
        return res.status(err.statusCode).json({ message: err.message, error: err.error });
    });
};
export const closeChannel = (req, res, next) => {
    options = common.getOptions(req);
    if (options.error) {
        return res.status(options.statusCode).json({ message: options.message, error: options.error });
    }
    if (req.query.force !== 'true') {
        logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Channels', msg: 'Closing Channel..' });
        options.url = req.session.selectedNode.ln_server_url + '/close';
    }
    else {
        logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Channels', msg: 'Force Closing Channel..' });
        options.url = req.session.selectedNode.ln_server_url + '/forceclose';
    }
    options.form = { channelId: req.query.channelId };
    logger.log({ selectedNode: req.session.selectedNode, level: 'DEBUG', fileName: 'Channels', msg: 'Close URL', data: options.url });
    logger.log({ selectedNode: req.session.selectedNode, level: 'DEBUG', fileName: 'Channels', msg: 'Close Params', data: options.form });
    request.post(options).then((body) => {
        logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Channels', msg: 'Channel Closed', data: body });
        res.status(204).json(body);
    }).catch((errRes) => {
        const err = common.handleError(errRes, 'Channels', 'Close Channel Error', req.session.selectedNode);
        return res.status(err.statusCode).json({ message: err.message, error: err.error });
    });
};
// options.form = { sourceNodeId: req.params.source, targetNodeId: req.params.target, amountMsat: req.params.amount, ignoreNodeIds: req.params.ignore };
export const circularRebalance = (req, res, next) => {
    const crInvDescription = 'Circular rebalancing invoice for ' + (req.body.amountMsat / 1000) + ' Sats';
    options = common.getOptions(req);
    if (options.error) {
        return res.status(options.statusCode).json({ message: options.message, error: options.error });
    }
    options.form = req.body;
    logger.log({ selectedNode: req.session.selectedNode, level: 'DEBUG', fileName: 'Channels', msg: 'Rebalance Params', data: options.form });
    const tillToday = (Math.round(new Date(Date.now()).getTime() / 1000)).toString();
    // Check if unpaid Invoice exists already
    listPendingInvoicesRequestCall(req.session.selectedNode).then((callRes) => {
        const foundExistingInvoice = callRes.find((inv) => inv.description.includes(crInvDescription) && inv.amount === req.body.amountMsat && inv.expiry && inv.timestamp && ((inv.expiry + inv.timestamp) >= tillToday));
        // Create new invoice if doesn't exist already
        const requestCalls = foundExistingInvoice && foundExistingInvoice.serialized ?
            [findRouteBetweenNodesRequestCall(req.session.selectedNode, req.body.amountMsat, req.body.sourceNodeId, req.body.targetNodeId, req.body.ignoreNodeIds, req.body.format)] :
            [findRouteBetweenNodesRequestCall(req.session.selectedNode, req.body.amountMsat, req.body.sourceNodeId, req.body.targetNodeId, req.body.ignoreNodeIds, req.body.format), createInvoiceRequestCall(req.session.selectedNode, crInvDescription, req.body.amountMsat)];
        Promise.all(requestCalls).then((values) => {
            // eslint-disable-next-line arrow-body-style
            const routes = values[0]?.routes?.filter((route) => {
                return !((route.shortChannelIds[0] === req.body.sourceShortChannelId && route.shortChannelIds[1] === req.body.targetShortChannelId) ||
                    (route.shortChannelIds[1] === req.body.sourceShortChannelId && route.shortChannelIds[0] === req.body.targetShortChannelId));
            });
            const firstRoute = routes[0].shortChannelIds.join() || '';
            const shortChannelIds = req.body.sourceShortChannelId + ',' + firstRoute + ',' + req.body.targetShortChannelId;
            const invoice = (foundExistingInvoice && foundExistingInvoice.serialized ? foundExistingInvoice.serialized : (values[1] ? values[1].serialized : '')) || '';
            const paymentHash = (foundExistingInvoice && foundExistingInvoice.paymentHash ? foundExistingInvoice.paymentHash : (values[1] ? values[1].paymentHash : '') || '');
            return sendPaymentToRouteRequestCall(req.session.selectedNode, shortChannelIds, invoice, req.body.amountMsat).then((payToRouteCallRes) => {
                // eslint-disable-next-line arrow-body-style
                setTimeout(() => {
                    return getSentInfoFromPaymentRequest(req.session.selectedNode, paymentHash).then((sentInfoCallRes) => {
                        const payStatus = sentInfoCallRes.length && sentInfoCallRes.length > 0 ? sentInfoCallRes[sentInfoCallRes.length - 1].status : sentInfoCallRes;
                        return res.status(201).json({ flgReusingInvoice: !!foundExistingInvoice, invoice: invoice, paymentRoute: shortChannelIds, paymentHash: paymentHash, paymentDetails: payToRouteCallRes, paymentStatus: payStatus });
                    }).catch((errRes) => {
                        const err = common.handleError(errRes, 'Channels', 'Channel Rebalance From Sent Info Error', req.session.selectedNode);
                        return res.status(err.statusCode).json({ flgReusingInvoice: !!foundExistingInvoice, invoice: invoice, paymentRoute: shortChannelIds, paymentHash: paymentHash, paymentDetails: payToRouteCallRes, paymentStatus: { error: err.error } });
                    });
                }, 3000);
            }).catch((errRes) => {
                const err = common.handleError(errRes, 'Channels', 'Channel Rebalance From Send Payment To Route Error', req.session.selectedNode);
                return res.status(err.statusCode).json({ flgReusingInvoice: !!foundExistingInvoice, invoice: invoice, paymentRoute: shortChannelIds, paymentHash: paymentHash, paymentDetails: {}, paymentStatus: { error: err.error } });
            });
        }).catch((errRes) => {
            const err = common.handleError(errRes, 'Channels', 'Channel Rebalance From Find Routes Error', req.session.selectedNode);
            return res.status(err.statusCode).json({ flgReusingInvoice: !!foundExistingInvoice, invoice: (foundExistingInvoice.serialized || ''), paymentRoute: '', paymentHash: '', paymentDetails: {}, paymentStatus: { error: err.error } });
        });
    }).catch((errRes) => {
        const err = common.handleError(errRes, 'Channels', 'Channel Rebalance From List Pending Invoices Error', req.session.selectedNode);
        return res.status(err.statusCode).json({ flgReusingInvoice: false, invoice: '', paymentRoute: '', paymentHash: '', paymentDetails: {}, paymentStatus: { error: err.error } });
    });
};