fix(chart): Fix chart rendering and appearance issues in the DeesChartArea component.

ts_web/elements/dees-chart-area.ts

@@ -38,7 +38,7 @@ export class DeesChartArea extends DeesElement {
     super();
     domtools.elementBasic.setup();
 
-    this.resizeObserver = new ResizeObserver(entries => {
+    this.resizeObserver = new ResizeObserver((entries) => {
       for (let entry of entries) {
         if (entry.target.classList.contains('mainbox')) {
           this.resizeChart(); // Call resizeChart when the .mainbox size changes
@@ -55,7 +55,7 @@ export class DeesChartArea extends DeesElement {
     });
     this.registerGarbageFunction(async () => {
       this.resizeObserver.disconnect();
-    })
+    });
   }
 
   public static styles = [
@@ -71,7 +71,7 @@ export class DeesChartArea extends DeesElement {
         position: relative;
         width: 100%;
         height: 400px;
-        background: #222;
+        background: #111;
         border-radius: 8px;
       }
 
@@ -95,10 +95,12 @@ export class DeesChartArea extends DeesElement {
   ];
 
   public render(): TemplateResult {
-    return html` <div class="mainbox">
-      <div class="chartTitle">${this.label}</div>
-      <div class="chartContainer"></div>
-    </div> `;
+    return html`
+      <div class="mainbox">
+        <div class="chartTitle">${this.label}</div>
+        <div class="chartContainer"></div>
+      </div>
+    `;
   }
 
   public async firstUpdated() {
@@ -107,11 +109,23 @@ export class DeesChartArea extends DeesElement {
       series: [
         {
           name: 'cpu',
-          data: [31, 40, 28, 51, 42, 109, 100],
+          data: [
+            { x: '2025-01-15T03:00:00', y: 25 },
+            { x: '2025-01-15T07:00:00', y: 30 },
+            { x: '2025-01-15T11:00:00', y: 20 },
+            { x: '2025-01-15T15:00:00', y: 35 },
+            { x: '2025-01-15T19:00:00', y: 25 },
+          ],
         },
         {
           name: 'memory',
-          data: [11, 32, 45, 32, 34, 52, 41],
+          data: [
+            { x: '2025-01-15T03:00:00', y: 10 },
+            { x: '2025-01-15T07:00:00', y: 12 },
+            { x: '2025-01-15T11:00:00', y: 10 },
+            { x: '2025-01-15T15:00:00', y: 30 },
+            { x: '2025-01-15T19:00:00', y: 40 },
+          ],
         },
       ],
       chart: {
@@ -130,35 +144,62 @@ export class DeesChartArea extends DeesElement {
         curve: 'smooth',
       },
       xaxis: {
-        crosshairs: {
-          stroke: {
-            width: 1,
-            color: '#444',
+        type: 'datetime', // Time-series data
+        labels: {
+          format: 'hh:mm A', // Time formatting
+          style: {
+            colors: '#9e9e9e', // Label color
+            fontSize: '12px',
           },
         },
-        type: 'datetime',
-        categories: [
-          '2018-09-19T00:00:00.000Z',
-          '2018-09-19T01:30:00.000Z',
-          '2018-09-19T02:30:00.000Z',
-          '2018-09-19T03:30:00.000Z',
-          '2018-09-19T04:30:00.000Z',
-          '2018-09-19T05:30:00.000Z',
-          '2018-09-19T06:30:00.000Z',
-        ],
+        axisBorder: {
+          show: false, // Hide x-axis border
+        },
+        axisTicks: {
+          show: false, // Hide x-axis ticks
+        },
       },
       yaxis: {
-        crosshairs: {
-          stroke: {
-            width: 1,
-            color: '#444',
+        min: 0,
+        labels: {
+          formatter: function (val: number) {
+            return `${val} Mbps`; // Format Y-axis labels
           },
+          style: {
+            colors: '#9e9e9e', // Label color
+            fontSize: '12px',
+          },
+        },
+        axisBorder: {
+          show: false, // Hide y-axis border
+        },
+        axisTicks: {
+          show: false, // Hide y-axis ticks
         },
       },
       tooltip: {
+        shared: true, // Enables the tooltip to display across series
+        intersect: false, // Allows hovering anywhere on the chart
+        followCursor: true, // Makes tooltip follow mouse even between points
         x: {
           format: 'dd/MM/yy HH:mm',
         },
+        custom: function ({ series, seriesIndex, dataPointIndex, w }) {
+          // Get the x value
+          const xValue = w.globals.labels[dataPointIndex];
+          // Iterate through each series and get its value
+          let tooltipContent = `<div style="padding: 10px; background: #1e1e2f; color: white; border-radius: 5px;">`;
+          tooltipContent += ``; // `<strong>Time:</strong> ${xValue}<br/>`;
+
+          series.forEach((s, index) => {
+            const label = w.globals.seriesNames[index]; // Get series label
+            const value = s[dataPointIndex]; // Get value at data point
+            tooltipContent += `<strong>${label}:</strong> ${value} Mbps<br/>`;
+          });
+
+          tooltipContent += `</div>`;
+          return tooltipContent;
+        },
       },
       grid: {
         xaxis: {
@@ -171,8 +212,8 @@ export class DeesChartArea extends DeesElement {
             show: true,
           },
         },
-        borderColor: '#666', // Set the color of the grid lines
-        strokeDashArray: 2, // Solid line
+        borderColor: '#333', // Set the color of the grid lines
+        strokeDashArray: 0, // Solid line
         row: {
           colors: [], // This can be used to alternate the shading of the horizontal rows
           opacity: 0.1,
@@ -182,6 +223,15 @@ export class DeesChartArea extends DeesElement {
           opacity: 0.1,
         },
       },
+      fill: {
+        type: 'gradient', // Gradient fill for the area
+        gradient: {
+          shade: 'dark',
+          type: 'vertical',
+          gradientToColors: ['#9c27b0'], // Gradient color ending
+          stops: [0, 100],
+        },
+      },
     };
     this.chart = new ApexCharts(this.shadowRoot.querySelector('.chartContainer'), options);
     await this.chart.render();
@@ -189,20 +239,22 @@ export class DeesChartArea extends DeesElement {
   }
 
   public async resizeChart() {
-    const element = this.shadowRoot.querySelector('.chartContainer');
+    const mainbox: HTMLDivElement = this.shadowRoot.querySelector('.mainbox');
+    const chartContainer: HTMLDivElement = this.shadowRoot.querySelector('.chartContainer');
 
     // Get computed style of the element
-    const style = window.getComputedStyle(element);
+    const styleMainbox = window.getComputedStyle(mainbox);
+    const styleChartContainer = window.getComputedStyle(chartContainer);
 
     // Extract padding values
-    const paddingTop = parseInt(style.paddingTop, 10);
-    const paddingBottom = parseInt(style.paddingBottom, 10);
-    const paddingLeft = parseInt(style.paddingLeft, 10);
-    const paddingRight = parseInt(style.paddingRight, 10);
+    const paddingTop = parseInt(styleChartContainer.paddingTop, 10);
+    const paddingBottom = parseInt(styleChartContainer.paddingBottom, 10);
+    const paddingLeft = parseInt(styleChartContainer.paddingLeft, 10);
+    const paddingRight = parseInt(styleChartContainer.paddingRight, 10);
 
     // Calculate the actual width and height to use, subtracting padding
-    const actualWidth = element.clientWidth - paddingLeft - paddingRight;
-    const actualHeight = element.clientHeight - paddingTop - paddingBottom;
+    const actualWidth = mainbox.clientWidth - paddingLeft - paddingRight;
+    const actualHeight = mainbox.offsetHeight - paddingTop - paddingBottom;
 
     await this.chart.updateOptions({
       chart: {