open-nomad/ui/stories/charts/stats-time-series.stories.js

120 lines
3.7 KiB
JavaScript

import hbs from 'htmlbars-inline-precompile';
import EmberObject, { computed } from '@ember/object';
import { on } from '@ember/object/evented';
import moment from 'moment';
import DelayedArray from '../utils/delayed-array';
export default {
title: 'Charts/Stats Time Series',
};
let ts = offset =>
moment()
.subtract(offset, 'm')
.toDate();
export let Standard = () => {
return {
template: hbs`
<h5 class="title is-5">Stats Time Series</h5>
<div class="block" style="height:100px; width: 400px;">
{{#if staticMetrics}}
<StatsTimeSeries @data={{staticMetrics}} @chartClass="is-primary" />
{{/if}}
</div>
`,
context: {
staticMetrics: DelayedArray.create([
{ timestamp: ts(20), percent: 0.5 },
{ timestamp: ts(18), percent: 0.5 },
{ timestamp: ts(16), percent: 0.4 },
{ timestamp: ts(14), percent: 0.3 },
{ timestamp: ts(12), percent: 0.9 },
{ timestamp: ts(10), percent: 0.3 },
{ timestamp: ts(8), percent: 0.3 },
{ timestamp: ts(6), percent: 0.4 },
{ timestamp: ts(4), percent: 0.5 },
{ timestamp: ts(2), percent: 0.6 },
{ timestamp: ts(0), percent: 0.6 },
]),
},
};
};
export let HighLowComparison = () => {
return {
template: hbs`
<h5 class="title is-5">Stats Time Series high/low comparison</h5>
<div class="columns">
<div class="block column" style="height:200px; width:400px">
{{#if data.metricsHigh}}
<StatsTimeSeries @data={{data.metricsHigh}} @chartClass="is-info" />
{{/if}}
</div>
<div class="block column" style="height:200px; width:400px">
{{#if data.metricsLow}}
<StatsTimeSeries @data={{data.metricsLow}} @chartClass="is-info" />
{{/if}}
</div>
</div>
<p class="annotation">Line charts, and therefore stats time series charts, use a letant linear gradient with a height equal to the canvas. This makes the color intensity of the gradient at values consistent across charts as long as those charts have the same y-axis domain.</p>
<p class="annotation">This is used to great effect with stats charts since they all have a y-axis domain of 0-100%.</p>
`,
context: {
data: EmberObject.extend({
timerTicks: 0,
startTimer: on('init', function() {
this.set(
'timer',
setInterval(() => {
let metricsHigh = this.metricsHigh;
let prev = metricsHigh.length ? metricsHigh[metricsHigh.length - 1].percent : 0.9;
this.appendTSValue(
metricsHigh,
Math.min(Math.max(prev + Math.random() * 0.05 - 0.025, 0.5), 1)
);
let metricsLow = this.metricsLow;
let prev2 = metricsLow.length ? metricsLow[metricsLow.length - 1].percent : 0.1;
this.appendTSValue(
metricsLow,
Math.min(Math.max(prev2 + Math.random() * 0.05 - 0.025, 0), 0.5)
);
}, 1000)
);
}),
appendTSValue(array, percent, maxLength = 300) {
array.addObject({
timestamp: Date.now(),
percent,
});
if (array.length > maxLength) {
array.splice(0, array.length - maxLength);
}
},
willDestroy() {
clearInterval(this.timer);
},
metricsHigh: computed(function() {
return [];
}),
metricsLow: computed(function() {
return [];
}),
secondsFormat() {
return date => moment(date).format('HH:mm:ss');
},
}).create(),
},
};
};