initial charts / backtest

apps/stock/web-app/src/features/charts/components/ChartErrorBoundary.tsx

@@ -0,0 +1,51 @@
+import { Component, ReactNode } from 'react';
+
+interface Props {
+  children: ReactNode;
+}
+
+interface State {
+  hasError: boolean;
+  error: Error | null;
+}
+
+export class ChartErrorBoundary extends Component<Props, State> {
+  constructor(props: Props) {
+    super(props);
+    this.state = { hasError: false, error: null };
+  }
+
+  static getDerivedStateFromError(error: Error): State {
+    return { hasError: true, error };
+  }
+
+  componentDidCatch(error: Error, errorInfo: React.ErrorInfo) {
+    console.error('Chart error:', error, errorInfo);
+  }
+
+  render() {
+    if (this.state.hasError) {
+      return (
+        <div className="flex items-center justify-center h-full bg-surface-secondary rounded-lg border border-border p-8">
+          <div className="text-center">
+            <div className="text-error text-6xl mb-4">⚠️</div>
+            <h2 className="text-lg font-semibold text-text-primary mb-2">
+              Chart Loading Error
+            </h2>
+            <p className="text-sm text-text-secondary mb-4">
+              {this.state.error?.message || 'Unable to load the chart'}
+            </p>
+            <button
+              onClick={() => this.setState({ hasError: false, error: null })}
+              className="px-4 py-2 bg-primary-500 text-white rounded-md text-sm font-medium hover:bg-primary-600 transition-colors"
+            >
+              Try Again
+            </button>
+          </div>
+        </div>
+      );
+    }
+
+    return this.props.children;
+  }
+}