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centralize shift behavior into TimeTracker func

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This commit is contained in:
Nick Krecklow
2020-05-11 18:16:41 -05:00
parent c2f6d04e72
commit 7136851123
2 changed files with 12 additions and 22 deletions
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20
lib/time.js
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@ -10,11 +10,7 @@ class TimeTracker {
newPingTimestamp () {
const timestamp = new Date().getTime()
this._points.push(timestamp)
if (this._points.length > TimeTracker.getMaxServerGraphDataLength()) {
this._points.shift()
}
TimeTracker.pushAndShift(this._points, timestamp, TimeTracker.getMaxServerGraphDataLength())
// Flag each group as history graph additions each minute
// This is sent to the frontend for graph updates
@ -24,11 +20,7 @@ class TimeTracker {
this._lastHistoryGraphUpdate = timestamp
// Push into timestamps array to update backend state
this._historicalTimestamps.push(timestamp)
if (this._historicalTimestamps.length > TimeTracker.getMaxGraphDataLength()) {
this._historicalTimestamps.shift()
}
TimeTracker.pushAndShift(this._historicalTimestamps, timestamp, TimeTracker.getMaxGraphDataLength())
}
return {
@ -60,6 +52,14 @@ class TimeTracker {
static getMaxGraphDataLength () {
return Math.ceil(config.graphDuration / config.rates.pingAll)
}
static pushAndShift (array, value, maxLength) {
array.push(value)
if (array.length > maxLength) {
array.shift()
}
}
}
module.exports = TimeTracker