feat(chart-area): replace ApexCharts with Lightweight Charts for area chart rendering

ts_web/services/DeesServiceLibLoader.ts

@@ -4,7 +4,15 @@ import { CDN_BASE, CDN_VERSIONS } from './versions.js';
 import type { Terminal, ITerminalOptions } from 'xterm';
 import type { FitAddon } from 'xterm-addon-fit';
 import type { HLJSApi } from 'highlight.js';
-import type ApexChartsType from 'apexcharts';
+import type {
+  createChart as createChartType,
+  IChartApi,
+  ISeriesApi,
+  UTCTimestamp,
+  MouseEventParams,
+  DeepPartial,
+  TimeChartOptions,
+} from 'lightweight-charts';
 import type { Editor, EditorOptions } from '@tiptap/core';
 import type { StarterKitOptions } from '@tiptap/starter-kit';
 import type { UnderlineOptions } from '@tiptap/extension-underline';
@@ -43,6 +51,29 @@ export interface IXtermSearchAddon {
   findPrevious(term: string, searchOptions?: { regex?: boolean; wholeWord?: boolean; caseSensitive?: boolean; incremental?: boolean }): boolean;
 }
 
+/**
+ * Bundle type for TradingView Lightweight Charts
+ */
+export interface ILightweightChartsBundle {
+  createChart: typeof createChartType;
+  AreaSeries: any;
+  LineSeries: any;
+  ColorType: {
+    Solid: string;
+    VerticalGradient: string;
+  };
+  LineType: {
+    Simple: number;
+    WithSteps: number;
+    Curved: number;
+  };
+  CrosshairMode: {
+    Normal: number;
+    Magnet: number;
+    Hidden: number;
+  };
+}
+
 /**
  * Bundle type for Tiptap editor and extensions
  */
@@ -76,7 +107,7 @@ export class DeesServiceLibLoader {
   private xtermFitAddonLib: IXtermFitAddonBundle | null = null;
   private xtermSearchAddonLib: IXtermSearchAddonBundle | null = null;
   private highlightJsLib: HLJSApi | null = null;
-  private apexChartsLib: typeof ApexChartsType | null = null;
+  private lightweightChartsLib: ILightweightChartsBundle | null = null;
   private tiptapLib: ITiptapBundle | null = null;
 
   // Loading promises to prevent duplicate concurrent loads
@@ -84,7 +115,7 @@ export class DeesServiceLibLoader {
   private xtermFitAddonLoadingPromise: Promise<IXtermFitAddonBundle> | null = null;
   private xtermSearchAddonLoadingPromise: Promise<IXtermSearchAddonBundle> | null = null;
   private highlightJsLoadingPromise: Promise<HLJSApi> | null = null;
-  private apexChartsLoadingPromise: Promise<typeof ApexChartsType> | null = null;
+  private lightweightChartsLoadingPromise: Promise<ILightweightChartsBundle> | null = null;
   private tiptapLoadingPromise: Promise<ITiptapBundle> | null = null;
 
   private constructor() {}
@@ -235,27 +266,34 @@ body > div[style*="top: -50000px"][style*="width: 50000px"] {
   }
 
   /**
-   * Load ApexCharts charting library from CDN
-   * @returns Promise resolving to ApexCharts constructor
+   * Load TradingView Lightweight Charts from CDN
+   * @returns Promise resolving to Lightweight Charts bundle
    */
-  public async loadApexCharts(): Promise<typeof ApexChartsType> {
-    if (this.apexChartsLib) {
-      return this.apexChartsLib;
+  public async loadLightweightCharts(): Promise<ILightweightChartsBundle> {
+    if (this.lightweightChartsLib) {
+      return this.lightweightChartsLib;
     }
 
-    if (this.apexChartsLoadingPromise) {
-      return this.apexChartsLoadingPromise;
+    if (this.lightweightChartsLoadingPromise) {
+      return this.lightweightChartsLoadingPromise;
     }
 
-    this.apexChartsLoadingPromise = (async () => {
-      const url = `${CDN_BASE}/apexcharts@${CDN_VERSIONS.apexcharts}/+esm`;
+    this.lightweightChartsLoadingPromise = (async () => {
+      const url = `${CDN_BASE}/lightweight-charts@${CDN_VERSIONS.lightweightCharts}/+esm`;
       const module = await import(/* @vite-ignore */ url);
 
-      this.apexChartsLib = module.default;
-      return this.apexChartsLib!;
+      this.lightweightChartsLib = {
+        createChart: module.createChart,
+        AreaSeries: module.AreaSeries,
+        LineSeries: module.LineSeries,
+        ColorType: module.ColorType,
+        LineType: module.LineType,
+        CrosshairMode: module.CrosshairMode,
+      };
+      return this.lightweightChartsLib;
     })();
 
-    return this.apexChartsLoadingPromise;
+    return this.lightweightChartsLoadingPromise;
   }
 
   /**
@@ -316,7 +354,7 @@ body > div[style*="top: -50000px"][style*="width: 50000px"] {
       this.loadXtermFitAddon(),
       this.loadXtermSearchAddon(),
       this.loadHighlightJs(),
-      this.loadApexCharts(),
+      this.loadLightweightCharts(),
       this.loadTiptap(),
     ]);
   }
@@ -324,7 +362,7 @@ body > div[style*="top: -50000px"][style*="width: 50000px"] {
   /**
    * Check if a specific library is already loaded
    */
-  public isLoaded(library: 'xterm' | 'xtermFitAddon' | 'xtermSearchAddon' | 'highlightJs' | 'apexCharts' | 'tiptap'): boolean {
+  public isLoaded(library: 'xterm' | 'xtermFitAddon' | 'xtermSearchAddon' | 'highlightJs' | 'lightweightCharts' | 'tiptap'): boolean {
     switch (library) {
       case 'xterm':
         return this.xtermLib !== null;
@@ -334,8 +372,8 @@ body > div[style*="top: -50000px"][style*="width: 50000px"] {
         return this.xtermSearchAddonLib !== null;
       case 'highlightJs':
         return this.highlightJsLib !== null;
-      case 'apexCharts':
-        return this.apexChartsLib !== null;
+      case 'lightweightCharts':
+        return this.lightweightChartsLib !== null;
       case 'tiptap':
         return this.tiptapLib !== null;
       default: