126 lines
3.1 KiB
JavaScript
126 lines
3.1 KiB
JavaScript
'use strict'
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var R = require('ramda')
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var db = null
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var getBalance = null
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function init (_db, _getBalance) {
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db = _db
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getBalance = _getBalance
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}
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function toInt10 (str) { return parseInt(str, 10) }
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function jsonParse (event) {
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return R.assoc('note', JSON.parse(event.note), event)
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}
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function sameState (a, b) {
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return a.note.sessionId === b.note.sessionId && a.note.state === b.note.state
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}
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function checkBalance () {
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var LOW_BALANCE_THRESHOLD = 10
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if (getBalance() < LOW_BALANCE_THRESHOLD) {
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return console.log('Bitcoin balance is low [ALERT]')
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}
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console.log('Bitcoin balance ok [OK]')
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}
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function checkPing (deviceEvents) {
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var sortedEvents = R.sortBy(R.compose(toInt10, R.prop('device_time')), R.map(jsonParse, deviceEvents))
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var lastEvent = R.last(sortedEvents)
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var NETWORK_DOWN_TIME = 2 * 60 * 1000
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if (!lastEvent) {
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console.log('No data for device')
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return
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}
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if (lastEvent.age > NETWORK_DOWN_TIME) {
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return console.log('Device not reachable [ALERT]')
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}
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console.log('Device reachable [OK]')
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}
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function checkStuckScreen (deviceEvents) {
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var sortedEvents = R.sortBy(R.compose(toInt10, R.prop('device_time')), R.map(jsonParse, deviceEvents))
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var noRepeatEvents = R.dropRepeatsWith(sameState, sortedEvents)
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var lastEvent = R.last(noRepeatEvents)
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var IDLE_STATES = ['idle', 'dualIdle']
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var STALE_STATE = 60 * 1000
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if (!lastEvent) {
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console.log('No data for device')
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return
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}
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var state = lastEvent.note.state
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if (R.contains(state, IDLE_STATES)) {
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console.log('Machine is idle [OK]')
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return
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}
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console.log(lastEvent.age)
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if (lastEvent.age > STALE_STATE) {
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console.log('Stale state: ' + state + ' [ALERT]')
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return
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}
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console.log('[OK]')
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}
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function checkStatus () {
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/*
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- Fetch devices from devices table
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- Fetch all machine_events into memory
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- For each device, verify the following:
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v stuck on screen
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- last screen is >5m stale and is not idle screen
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- report stuck on screen and name of screen
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- not scanning qr codes?
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- low bitcoins -- need a separate strategy, but server has this info
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- var fiatBalance = plugins.fiatBalance();
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v machine isn't pinging server
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- jam checking, need report from l-m
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*/
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checkBalance()
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db.devices(function (err, devices) {
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if (err) return console.error(err)
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db.machineEvents(function (err, events) {
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if (err) return console.error(err)
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devices.rows.forEach(function (deviceRow) {
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var deviceFingerprint = deviceRow.fingerprint
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var deviceEvents = events.rows.filter(function (eventRow) {
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return eventRow.device_fingerprint === deviceFingerprint
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})
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console.log('DEVICE: ' + deviceRow.fingerprint)
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checkStuckScreen(deviceEvents)
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checkPing(deviceEvents)
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})
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})
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})
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}
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var _db = require('./postgresql_interface')
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var connectionString = 'postgres://lamassu:lamassu@localhost/lamassu'
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var _getBalance = function () {
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return 12
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}
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_db.init(connectionString)
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init(_db, _getBalance)
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checkStatus()
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// TODO: How to know which alerts have been sent?
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// Send alert every 10m while alert state
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// Remember last sent alert in memory
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