import { Component, ErrorInfo, ReactNode } from 'react';

interface Props {
  children: ReactNode;
}

interface State {
  hasError: boolean;
  error: Error | null;
}

export class ErrorBoundary 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: ErrorInfo) {
    console.error('ErrorBoundary caught:', error, errorInfo);
  }

  render() {
    if (this.state.hasError) {
      return (
        <div className="min-h-screen flex items-center justify-center bg-gray-50 p-8">
          <div className="text-center max-w-md">
            <svg className="mx-auto h-16 w-16 text-red-400 mb-6" fill="none" viewBox="0 0 24 24" stroke="currentColor">
              <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-2.5L13.732 4c-.77-.833-1.996-.833-2.764 0L3.732 16c-.77.833.192 2.5 1.732 2.5z" />
            </svg>
            <h1 className="text-2xl font-bold text-gray-900 mb-2">
              Etwas ist schiefgelaufen
            </h1>
            <p className="text-gray-600 mb-6">
              Ein unerwarteter Fehler ist aufgetreten. Bitte laden Sie die Seite neu.
            </p>
            {this.state.error && (
              <p className="text-sm text-red-600 mb-6 font-mono bg-red-50 p-3 rounded">
                {this.state.error.message}
              </p>
            )}
            <button
              onClick={() => window.location.reload()}
              className="px-6 py-3 bg-blue-600 text-white rounded-md hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2 transition-colors text-lg"
            >
              Seite neu laden
            </button>
          </div>
        </div>
      );
    }

    return this.props.children;
  }
}
