Merge pull request #37 from pfizer-opensource/pbc-with-lines

Make PBC charts able to have the dots connected through lines

Author: ClaudiaGivan

src/graphs/UIControlsRenderer.js

@@ -171,6 +171,7 @@ export default class UIControlsRenderer extends Renderer {
     } else {
       this.timeInterval = this.determineTheAppropriateAxisLabels();
     }
+
     this.eventBus?.emitEvents(`change-time-interval-${chart}`, this.timeInterval);
   }
 

src/graphs/cfd/CFDRenderer.js

@@ -66,7 +66,7 @@ class CFDRenderer extends UIControlsRenderer {
     this.eventBus?.addEventListener('scatterplot-mouseleave', () => this.hideTooltipAndMovingLine());
     this.eventBus?.addEventListener('change-time-interval-scatterplot', (timeInterval) => {
       this.timeInterval = timeInterval;
-      this.drawXAxis(this.gx, this.x.copy().domain(this.selectedTimeRange), this.height, true);
+      this.drawXAxis(this.gx, this.x?.copy().domain(this.selectedTimeRange), this.height, true);
     });
   }
 
@@ -128,9 +128,12 @@ class CFDRenderer extends UIControlsRenderer {
    * @param {string} cfdBrushElementSelector - Selector of the DOM element to clear the brush.
    */
   clearGraph(graphElementSelector, cfdBrushElementSelector) {
+    this.eventBus.removeAllListeners('change-time-range-scatterplot');
+    this.eventBus.removeAllListeners('scatterplot-mousemove');
+    this.eventBus.removeAllListeners('scatterplot-mouseleave');
+    this.eventBus.removeAllListeners('change-time-interval-scatterplot');
     this.#drawBrushSvg(cfdBrushElementSelector);
     this.#drawSvg(graphElementSelector);
-    this.#drawAxes();
   }
 
   /**
@@ -368,7 +371,7 @@ class CFDRenderer extends UIControlsRenderer {
    * @param {Object} observations - Observations data for the renderer.
    */
   setupObservationLogging(observations) {
-    if (observations) {
+    if (observations.length > 0) {
       this.displayObservationMarkers(observations);
       this.enableMetrics();
     }
@@ -395,7 +398,7 @@ class CFDRenderer extends UIControlsRenderer {
     const trianglePath = `M${-triangleBase / 2},0 L${triangleBase / 2},0 L0,-${triangleHeight} Z`;
     this.chartArea
       .selectAll('observations')
-      .data(observations.data.filter((d) => d.chart_type === 'CFD'))
+      .data(observations?.data?.filter((d) => d.chart_type === 'CFD'))
       .join('path')
       .attr('class', 'observation-marker')
       .attr('d', trianglePath)

src/graphs/control-chart/ControlRenderer.js

@@ -1,8 +1,10 @@
 import ScatterplotRenderer from '../scatterplot/ScatterplotRenderer.js';
+import * as d3 from 'd3';
 
 class ControlRenderer extends ScatterplotRenderer {
   color = '#0ea5e9';
   timeScale = 'linear';
+  connectDots = false;
 
   constructor(data, avgMovingRange) {
     super(data);
@@ -21,10 +23,17 @@ class ControlRenderer extends ScatterplotRenderer {
   renderGraph(graphElementSelector) {
     this.drawSvg(graphElementSelector);
     this.drawAxes();
-    this.drawArea();
     this.avgLeadTime = this.getAvgLeadTime();
     this.topLimit = Math.ceil(this.avgLeadTime + this.avgMovingRange * 2.66);
+
     this.bottomLimit = Math.ceil(this.avgLeadTime - this.avgMovingRange * 2.66);
+    const maxY = this.y.domain()[1] > this.topLimit ? this.y.domain()[1] : this.topLimit + 2;
+    let minY = this.y.domain()[0];
+    if (this.bottomLimit > 0) {
+      minY = this.y.domain()[0] < this.bottomLimit ? this.y.domain()[0] : this.bottomLimit - 2;
+    }
+    this.y.domain([minY, maxY]);
+    this.drawArea();
     this.drawHorizontalLine(this.y, this.topLimit, 'purple', 'top');
     this.drawHorizontalLine(this.y, this.avgLeadTime, 'orange', 'center');
     this.bottomLimit > 0 && this.drawHorizontalLine(this.y, this.bottomLimit, 'purple', 'bottom');
@@ -45,14 +54,41 @@ class ControlRenderer extends ScatterplotRenderer {
       .style('cursor', 'pointer')
       .attr('fill', this.color)
       .on('click', (event, d) => this.handleMouseClickEvent(event, d));
+    this.connectDots && this.generateLines(chartArea, data, x, y);
   }
 
   getAvgLeadTime() {
     return Math.ceil(this.data.reduce((acc, curr) => acc + curr.leadTime, 0) / this.data.length);
   }
 
+  generateLines(chartArea, data, x, y) {
+    // Define the line generator
+    const line = d3
+      .line()
+      .x((d) => x(d.deliveredDate))
+      .y((d) => y(d.leadTime));
+    chartArea
+      .selectAll('dot-line')
+      .data([data])
+      .enter()
+      .append('path')
+      .attr('class', 'dot-line')
+      .attr('id', (d) => `line-${d.ticketId}`)
+      .attr('d', line)
+      .attr('stroke', 'black')
+      .attr('stroke-width', 2)
+      .attr('fill', 'none');
+  }
+
   updateGraph(domain) {
     this.updateChartArea(domain);
+    if (this.connectDots) {
+      const line = d3
+        .line()
+        .x((d) => this.currentXScale(d.deliveredDate))
+        .y((d) => this.currentYScale(d.leadTime));
+      this.chartArea.selectAll('.dot-line').attr('d', line);
+    }
     this.drawHorizontalLine(this.currentYScale, this.topLimit, 'purple', 'top');
     this.drawHorizontalLine(this.currentYScale, this.avgLeadTime, 'orange', 'center');
     this.bottomLimit > 0 && this.drawHorizontalLine(this.currentYScale, this.bottomLimit, 'purple', 'bottom');

src/graphs/moving-range/MovingRangeGraph.js

@@ -1,5 +1,7 @@
 import * as d3 from 'd3';
+
 class MovingRangeGraph {
+  dataSet = [];
   constructor(data) {
     this.data = data;
   }
@@ -16,20 +18,26 @@ class MovingRangeGraph {
     // Sort the groupedArray by date to ensure correct ordering for difference calculation
     groupedArray.sort((a, b) => new Date(a.date) - new Date(b.date));
     // Step 3: Calculate absolute differences
-    const avgLeadTimes = [];
+    this.dataSet = [];
     for (let i = 1; i < groupedArray.length; i++) {
       const prev = groupedArray[i - 1];
       const current = groupedArray[i];
       const difference = Math.abs(current.value - prev.value);
 
-      avgLeadTimes.push({
+      this.dataSet.push({
         fromDate: new Date(prev.date),
         deliveredDate: new Date(current.date),
         leadTime: difference,
       });
     }
+    return this.dataSet;
+  }
 
-    return avgLeadTimes;
+  getAvgMovingRange() {
+    if (!this.dataSet) {
+      throw new Error('Data set not computed. Call computeDataSet() first.');
+    }
+    return Math.ceil(this.dataSet.reduce((acc, curr) => acc + curr.leadTime, 0) / this.dataSet.length);
   }
 }
 

src/graphs/moving-range/MovingRangeRenderer.js

@@ -5,8 +5,9 @@ class MovingRangeRenderer extends ScatterplotRenderer {
   color = '#0ea5e9';
   timeScale = 'linear';
 
-  constructor(data) {
+  constructor(data, avgMovingRange) {
     super(data);
+    this.avgMovingRange = avgMovingRange;
     this.chartName = 'moving-range';
     this.chartType = 'MOVING_RANGE';
     this.dotClass = 'moving-range-dot';
@@ -20,8 +21,10 @@ class MovingRangeRenderer extends ScatterplotRenderer {
   renderGraph(graphElementSelector) {
     this.drawSvg(graphElementSelector);
     this.drawAxes();
+    this.topLimit = this.avgMovingRange;
+    const maxY = this.y.domain()[1] > this.topLimit ? this.y.domain()[1] : this.topLimit + 2;
+    this.y.domain([this.y.domain()[0], maxY]);
     this.drawArea();
-    this.topLimit = this.getAvgMovingRange();
     this.drawHorizontalLine(this.y, this.topLimit, 'orange', 'mid');
   }
 
@@ -62,11 +65,7 @@ class MovingRangeRenderer extends ScatterplotRenderer {
       .x((d) => this.currentXScale(d.deliveredDate))
       .y((d) => this.currentYScale(d.leadTime));
     this.chartArea.selectAll('.dot-line').attr('d', line);
-    this.drawHorizontalLine(this.currentYScale, this.getAvgMovingRange(), 'orange', 'mid');
-  }
-
-  getAvgMovingRange() {
-    return Math.ceil(this.data.reduce((acc, curr) => acc + curr.leadTime, 0) / this.data.length);
+    this.drawHorizontalLine(this.currentYScale, this.avgMovingRange, 'orange', 'mid');
   }
 }
 export default MovingRangeRenderer;

src/graphs/scatterplot/ScatterplotRenderer.js

@@ -51,7 +51,7 @@ class ScatterplotRenderer extends UIControlsRenderer {
     this.eventBus?.addEventListener('change-time-range-cfd', this.updateBrushSelection.bind(this));
     this.eventBus?.addEventListener('change-time-interval-cfd', (timeInterval) => {
       this.timeInterval = timeInterval;
-      this.drawXAxis(this.gx, this.x.copy().domain(this.selectedTimeRange), this.height, true);
+      this.drawXAxis(this.gx, this.x?.copy().domain(this.selectedTimeRange), this.height, true);
     });
   }
 
@@ -110,9 +110,10 @@ class ScatterplotRenderer extends UIControlsRenderer {
    * @param {string} brushElementSelector - The selector of the brush element to clear.
    */
   clearGraph(graphElementSelector, brushElementSelector) {
+    this.eventBus?.removeAllListeners('change-time-interval-cfd');
+    this.eventBus?.removeAllListeners('change-time-range-cfd');
     this.drawBrushSvg(brushElementSelector);
     this.drawSvg(graphElementSelector);
-    this.drawAxes();
   }
 
   /**
@@ -241,7 +242,13 @@ class ScatterplotRenderer extends UIControlsRenderer {
   }
 
   computeXScale() {
-    const xDomain = d3.extent(this.data, (d) => d.deliveredDate);
+    const bufferDays = 2;
+    const xExtent = d3.extent(this.data, (d) => d.deliveredDate);
+    const minDate = new Date(xExtent[0]);
+    const maxDate = new Date(xExtent[1]);
+    minDate.setDate(minDate.getDate() - bufferDays);
+    maxDate.setDate(maxDate.getDate() + bufferDays);
+    const xDomain = [minDate, maxDate];
     this.x = this.computeTimeScale(xDomain, [0, this.width]);
   }
 
@@ -311,7 +318,7 @@ class ScatterplotRenderer extends UIControlsRenderer {
    * @param {Object} observations - Observations data for the renderer.
    */
   setupObservationLogging(observations) {
-    if (observations) {
+    if (observations.length > 0) {
       this.displayObservationMarkers(observations);
       this.enableMetrics();
     }
@@ -346,7 +353,7 @@ class ScatterplotRenderer extends UIControlsRenderer {
       .selectAll('ring')
       .data(
         this.data.filter((d) =>
-          this.observations.data.some((o) => o.work_item.toString() === d.ticketId.toString() && o.chart_type === this.chartType)
+          this.observations?.data?.some((o) => o.work_item.toString() === d.ticketId.toString() && o.chart_type === this.chartType)
         )
       )
       .enter()

src/graphs/scatterplot/SimpleScatterplotRenderer.js

@@ -87,6 +87,7 @@ class SimpleScatterplotRenderer extends ScatterplotRenderer {
         this.timeScale = event.target.value;
         this.computeYScale();
         this.updateGraph(this.selectedTimeRange);
+        this.renderBrush();
       });
     }
   }

src/utils/EventBus.js

@@ -12,7 +12,19 @@ class EventBus {
 
   emitEvents(eventName, params) {
     if (!this.eventTopics[eventName] || this.eventTopics[eventName].length < 1) return;
-    this.eventTopics[eventName].forEach((listener) => listener(params ? params : {}));
+    this.eventTopics[eventName].forEach((listener) => {
+      try {
+        listener(params ? params : {});
+      } catch (error) {
+        console.error('Error in listener for event', eventName, ':', error);
+      }
+    });
+  }
+
+  removeAllListeners(eventName) {
+    if (this.eventTopics[eventName]) {
+      this.eventTopics[eventName] = [];
+    }
   }
 }
 export const eventBus = new EventBus();