feat(ui): create chart registry

libs/ui/src/lib/chart/chart.registry.ts

@@ -0,0 +1,29 @@
+import { getTooltipPositionerMapTop } from '@ghostfolio/common/chart-helper';
+
+import { Tooltip, TooltipPositionerFunction, ChartType } from 'chart.js';
+
+interface VerticalHoverLinePluginOptions {
+  color?: string;
+  width?: number;
+}
+
+declare module 'chart.js' {
+  interface PluginOptionsByType<TType extends ChartType> {
+    verticalHoverLine: TType extends 'line' | 'bar'
+      ? VerticalHoverLinePluginOptions
+      : never;
+  }
+  interface TooltipPositionerMap {
+    top: TooltipPositionerFunction<ChartType>;
+  }
+}
+
+export function registerChartConfiguration() {
+  if (Tooltip.positioners['top']) {
+    return;
+  }
+
+  Tooltip.positioners.top = function (_elements, eventPosition) {
+    return getTooltipPositionerMapTop(this.chart, eventPosition);
+  };
+}

libs/ui/src/lib/chart/index.ts

@@ -0,0 +1 @@
+export * from './chart.registry';