import request from 'request-promise'; import { Logger, LoggerService } from '../../utils/logger.js'; import { Common, CommonService } from '../../utils/common.js'; let options = null; const logger: LoggerService = Logger; const common: CommonService = Common; const responseData = { switch: { forwarding_events: [], last_offset_index: 0 }, fees: { forwarding_events: [], last_offset_index: 0 } }; const num_max_events = 100; export const forwardingHistory = (req, res, next) => { getAllForwardingEvents(req, req.body.start_time, req.body.end_time, 0, 'switch', (eventsResponse) => { if (eventsResponse.error) { res.status(eventsResponse.error.statusCode).json(eventsResponse); } else { res.status(201).json(eventsResponse); } }); }; export const getAllForwardingEvents = (req, start, end, offset, caller, callback) => { logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Switch', msg: 'Getting Forwarding Events..' }); if (offset === 0) { responseData[caller] = { forwarding_events: [], last_offset_index: 0 }; } if (!req.session.selectedNode) { const err = common.handleError({ message: 'Session Expired after a day\'s inactivity.', statusCode: 401 }, 'Balance', 'Get Balance Error', req.session.selectedNode); return callback({ message: err.message, error: err.error, statusCode: err.statusCode }); } options = common.getOptions(req); options.url = req.session.selectedNode.ln_server_url + '/v1/switch'; options.form = {}; if (start) { options.form.start_time = start; } if (end) { options.form.end_time = end; } options.form.num_max_events = num_max_events; options.form.index_offset = offset; options.form = JSON.stringify(options.form); logger.log({ selectedNode: req.session.selectedNode, level: 'DEBUG', fileName: 'Switch', msg: 'Forwarding Events Params', data: options.form }); return request.post(options).then((body) => { logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Switch', msg: 'Forwarding Events Received', data: body }); if (body.forwarding_events) { responseData[caller].forwarding_events.push(...body.forwarding_events); responseData[caller].last_offset_index = body.last_offset_index ? body.last_offset_index : 0; } if (!body.last_offset_index || body.last_offset_index < offset + num_max_events) { responseData[caller].last_offset_index = body.last_offset_index ? body.last_offset_index : 0; if (responseData[caller].forwarding_events) { responseData[caller].forwarding_events = common.sortDescByKey(responseData[caller].forwarding_events, 'timestamp'); } return callback(responseData[caller]); } else { return getAllForwardingEvents(req, start, end, offset + num_max_events, caller, callback); } }).catch((errRes) => { const err = common.handleError(errRes, 'Switch', 'Get All Forwarding Events Error', req.session.selectedNode); return callback({ message: err.message, error: err.error, statusCode: err.statusCode }); }); };