Merge pull request #1303 from cptran777/score-gauge-component

Score gauge component

wherehows-web/app/components/visualization/charts/score-gauge.ts

@@ -0,0 +1,142 @@
+import Component from '@ember/component';
+import { computed, setProperties, getProperties, get } from '@ember/object';
+import { IHighChartsGaugeConfig, IHighChartsDataConfig } from 'wherehows-web/typings/app/visualization/charts';
+import { getBaseGaugeConfig, getBaseChartDataConfig } from 'wherehows-web/constants/visualization/charts/chart-configs';
+
+/**
+ * Whether the score is in the good (51%+), warning (26-50%) or critical (0-25% range)
+ */
+export enum ScoreState {
+  good = 'good',
+  warning = 'warning',
+  critical = 'critical'
+}
+
+/**
+ * How we want to display our score. If our score is 166 and max score is 200, percentage will display as
+ * 83%, outOf will display as 166 / 200, and number will display as 166
+ */
+export enum ScoreDisplay {
+  percentage = 'percent',
+  outOf = 'outOf',
+  number = 'number'
+}
+
+/**
+ * This score gauge component was originally developed to handle showing metadata health score gauges for a
+ * particular dataset. It appears as a basic circle gauge that changes colors depending on how far along we
+ * are in terms of score "percentage" and includes a simple legend and value display. There are currently
+ * no user interactions with this component.
+ *
+ * @example
+ * {{visualization/charts/score-gauge
+ *   title="string"
+ *   score=numberValue
+ *   maxScore=optionalNumberValue
+ *   scoreDisplay="percent" // Optional, defaults to "percent" but values can also be "outOf" and "number",
+ *                          // see details in class definition
+ * }}
+ */
+export default class VisualizationChartsScoreGauge extends Component {
+  /**
+   * Sets the classes for the rendered html element for the component
+   * @type {Array<string>}
+   */
+  classNames = ['score-gauge'];
+
+  /**
+   * Displays a passed in chart title.
+   * @type {number}
+   * @default ''
+   */
+  title: string;
+
+  /**
+   * Fetched score data in order to render onto the graph
+   * @type {number}
+   * @default 0
+   */
+  score: number;
+
+  /**
+   * Represents the maximum value a score can be. Helps us to calculate a percentage score
+   * @type {number}
+   * @default 100
+   */
+  maxScore: number;
+
+  /**
+   * Format option to determine how to display our score in the legend label
+   * @type {ScoreDisplay}
+   * @default ScoreDisplay.percentage
+   */
+  scoreDisplay: ScoreDisplay;
+
+  /**
+   * Gives a simple access to the chart state for other computed values to use
+   * @type {ComputedProperty<string>}
+   */
+  chartState = computed('score', function(): ScoreState {
+    const scoreAsPercentage = get(this, 'scoreAsPercentage');
+
+    if (scoreAsPercentage <= 25) {
+      return ScoreState.critical;
+    } else if (scoreAsPercentage <= 50) {
+      return ScoreState.warning;
+    }
+
+    return ScoreState.good;
+  });
+
+  /**
+   * Computes the class to properly color the legend value between the different states
+   * @type {ComputedProperty<string>}
+   */
+  labelValueClass = computed('chartState', function(): string {
+    return `score-gauge__legend-value--${get(this, 'chartState')}`;
+  });
+
+  /**
+   * Computes the score as a percentage in order to determine the score state property as well as use
+   * in the template to display the numerical score if we choose to display as a percentage
+   * @type {ComputedProperty<number>}
+   */
+  scoreAsPercentage = computed('score', function(): number {
+    const { score, maxScore } = getProperties(this, 'score', 'maxScore');
+
+    return Math.round((score / maxScore) * 100);
+  });
+
+  /**
+   * Creates a fresh configuration for our gauge chart every time we init a new instance of this
+   * component class
+   * @type {ComputedProperty<IHighChartsGaugeConfig>}
+   */
+  chartOptions: IHighChartsGaugeConfig;
+
+  /**
+   * Creates a fresh copy of the data object in the format expected by the highcharts "content" reader.
+   */
+  chartData: Array<IHighChartsDataConfig>;
+
+  constructor() {
+    super(...arguments);
+
+    const chartOptions = getBaseGaugeConfig();
+    const chartData = getBaseChartDataConfig('score');
+    const maxScore = typeof this.maxScore === 'number' ? this.maxScore : 100;
+    const score = this.score || NaN;
+    // Adds our information to the highcharts formatted configurations so that they can be read in the chart
+    chartOptions.yAxis.max = maxScore;
+    chartData[0].data = [score];
+
+    setProperties(this, {
+      score,
+      maxScore,
+      chartOptions,
+      chartData,
+      title: this.title || '',
+      scoreDisplay: this.scoreDisplay || ScoreDisplay.percentage
+    });
+  }
+}

wherehows-web/app/constants/visualization/charts/chart-configs.ts

@@ -0,0 +1,59 @@
+import { IHighChartsGaugeConfig, IHighChartsDataConfig } from 'wherehows-web/typings/app/visualization/charts';
+
+export function getBaseChartDataConfig(name: string): Array<IHighChartsDataConfig> {
+  return [{ name, data: [0] }];
+}
+
+export function getBaseGaugeConfig(): IHighChartsGaugeConfig {
+  return {
+    chart: { type: 'solidgauge', backgroundColor: 'transparent' },
+    title: '',
+    pane: {
+      center: ['50%', '50%'],
+      size: '100%',
+      startAngle: 0,
+      endAngle: 360,
+      background: {
+        backgroundColor: '#ddd',
+        innerRadius: '90%',
+        outerRadius: '100%',
+        shape: 'arc',
+        borderColor: 'transparent'
+      }
+    },
+    tooltip: {
+      enabled: false
+    },
+    yAxis: {
+      min: 0,
+      max: 100,
+      stops: [
+        [0.25, '#ff2c33'], // get-color(red5)
+        [0.5, '#e55800'], // get-color(orange5)
+        [0.75, '#469a1f'] // get-color(green5)
+      ],
+      minorTickInterval: null,
+      tickPixelInterval: 400,
+      tickWidth: 0,
+      gridLineWidth: 0,
+      gridLineColor: 'transparent',
+      labels: {
+        enabled: false
+      },
+      title: {
+        enabled: false
+      }
+    },
+    credits: {
+      enabled: false
+    },
+    plotOptions: {
+      solidgauge: {
+        innerRadius: '90%',
+        dataLabels: {
+          enabled: false
+        }
+      }
+    }
+  };
+}

wherehows-web/app/styles/base/_visualization.scss

@@ -2,8 +2,10 @@
    order for each item should always be the same */
 @for $i from 1 through 18 {
   $color: get-dataviz-color($i);
-  .highcharts-color-#{$i - 1} {
-    fill: $color;
-    stroke: $color;
+  .viz-chart {
+    .highcharts-color-#{$i - 1} {
+      fill: $color;
+      stroke: $color;
+    }
   }
 }

wherehows-web/app/styles/components/visualization/charts/_all.scss

@@ -1 +1,2 @@
 @import 'bar-chart';
+@import 'score-gauge';

wherehows-web/app/styles/components/visualization/charts/_score-gauge.scss

@@ -0,0 +1,41 @@
+$score-gauge-dimension: 128px;
+
+.score-gauge {
+  display: flex;
+
+  &__legend {
+    &-wrapper {
+      display: flex;
+      flex-direction: column;
+      justify-content: center;
+    }
+
+    &-title {
+      font-size: 16px;
+      font-weight: 600;
+      margin: 0;
+    }
+
+    &-value {
+      font-size: 28px;
+      font-weight: 400;
+
+      &--good {
+        color: get-color(green5);
+      }
+
+      &--warning {
+        color: get-color(orange5);
+      }
+
+      &--critical {
+        color: get-color(red5);
+      }
+    }
+  }
+
+  .chart-container {
+    height: $score-gauge-dimension;
+    width: $score-gauge-dimension;
+  }
+}

wherehows-web/app/templates/components/visualization/charts/score-gauge.hbs

@@ -0,0 +1,15 @@
+{{high-charts chartOptions=chartOptions content=chartData}}
+<div class="score-gauge__legend-wrapper">
+  <h6 class="score-gauge__legend-title">
+    {{title}}
+  </h6>
+  <span class="score-gauge__legend-value {{labelValueClass}}">
+    {{#if (eq scoreDisplay "percent")}}
+      {{scoreAsPercentage}}%
+    {{else if (eq scoreDisplay "outOf")}}
+      {{score}} / {{maxScore}}
+    {{else}}
+      {{score}}
+    {{/if}}
+  </span>
+</div>

wherehows-web/app/typings/app/visualization/charts.d.ts

@@ -7,3 +7,62 @@ export interface IChartDatum {
   isFaded?: boolean;
   customColorClass?: string;
 }
+
+/**
+ * Expected parameters for a high charts configuration object. This will probably be expanded as
+ * we deal with more charts and use cases but the starting generic point is based on gauges
+ */
+export interface IHighChartsConfig {
+  chart: { type: string; backgroundColor?: string };
+  title?: string;
+  pane?: {
+    center?: Array<string>;
+    size?: string;
+    startAngle?: number;
+    endAngle?: number;
+    background?: {
+      backgroundColor?: string;
+      innerRadius?: string;
+      outerRadius?: string;
+      shape?: string;
+      borderColor?: string;
+    };
+  };
+  tooltip?: { enabled?: boolean };
+  plotOptions?: any;
+}
+
+/**
+ * Expected parameters for a high charts solid gauge configuration object. This may be expanded as
+ * we deal with more gauge use cases
+ */
+export interface IHighChartsGaugeConfig extends IHighChartsConfig {
+  yAxis: {
+    min: number;
+    max: number;
+    stops: Array<Array<string | number>>;
+    minorTickInterval?: any;
+    tickPixelInterval: number;
+    tickWidth: number;
+    gridLineWidth: number;
+    gridLineColor: string;
+    labels?: { enabled?: boolean };
+    title?: { enabled?: boolean };
+  };
+  credits?: { enabled?: boolean };
+  plotOptions: {
+    solidgauge: {
+      innerRadius?: string;
+      dataLabels?: { enabled?: boolean };
+    };
+  };
+}
+
+export interface IHighChartsDataConfig {
+  name?: string;
+  // May need to be refined as we develop new kinds of charts
+  data: Array<number>;
+  dataLabels?: {
+    format?: string;
+  };
+}

wherehows-web/ember-cli-build.js

@@ -22,12 +22,13 @@ module.exports = function(defaults) {
     },
 
     emberHighCharts: {
-      includedHighCharts: true,
+      includeHighCharts: true,
       // Note: Since we only need highcharts, excluding the other available modules in the addon
       includeHighStock: false,
       includeHighMaps: false,
-      includeHighChartsMore: false,
-      includeHighCharts3D: false
+      includeHighChartsMore: true,
+      includeHighCharts3D: false,
+      includeModules: ['solid-gauge']
     },
 
     storeConfigInMeta: false,

wherehows-web/tests/integration/components/visualization/charts/score-gauge-test.js

@@ -0,0 +1,43 @@
+import { moduleForComponent, test } from 'ember-qunit';
+import hbs from 'htmlbars-inline-precompile';
+
+moduleForComponent('visualization/charts/score-gauge', 'Integration | Component | visualization/charts/score-gauge', {
+  integration: true
+});
+
+const chartContainer = '.score-gauge';
+const legendTitle = `${chartContainer}__legend-title`;
+const legendValue = `${chartContainer}__legend-value`;
+
+test('it renders', async function(assert) {
+  this.render(hbs`{{visualization/charts/score-gauge}}`);
+  assert.ok(this.$(), 'Renders without errors');
+});
+
+test('it renders the correct inforamtion', async function(assert) {
+  const score = 85;
+  const title = 'Ash Ketchum';
+  this.setProperties({ score, title });
+
+  this.render(hbs`{{visualization/charts/score-gauge
+                    score=score
+                    title=title}}`);
+
+  assert.ok(this.$(), 'Still renders without erorrs');
+  assert.equal(this.$(chartContainer).length, 1, 'Renders one correct element');
+  assert.equal(
+    this.$(legendTitle)
+      .text()
+      .trim(),
+    title,
+    'Renders the correct title'
+  );
+  assert.equal(
+    this.$(legendValue)
+      .text()
+      .trim(),
+    `${score}%`,
+    'Renders the score in the correct format'
+  );
+  assert.equal(this.$(`${legendValue}--good`).length, 1, 'Renders the score in the correct styling');
+});