import React, { Component, ErrorInfo, ReactNode } from 'react';
import { Alert, AlertDescription, AlertTitle } from '@/components/ui/alert';
import { Button } from '@/components/ui/button';
import { Card, CardContent } from '@/components/ui/card';
import { AlertTriangle, RefreshCw } from 'lucide-react';

interface Props {
  children: ReactNode;
  fallback?: ReactNode;
  onReset?: () => void;
}

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

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): void {
    console.error('ErrorBoundary caught an error:', error, errorInfo);
  }

  handleReset = (): void => {
    this.setState({
      hasError: false,
      error: null,
    });
    
    if (this.props.onReset) {
      this.props.onReset();
    }
  };

  render(): ReactNode {
    if (this.state.hasError) {
      if (this.props.fallback) {
        return this.props.fallback;
      }

      return (
        <Card className="w-full">
          <CardContent className="pt-6">
            <Alert variant="destructive">
              <AlertTriangle className="h-4 w-4" />
              <AlertTitle>Something went wrong</AlertTitle>
              <AlertDescription className="mt-2">
                <p className="mb-4">
                  {this.state.error?.message || 'An unexpected error occurred. Please try again.'}
                </p>
                <Button
                  variant="outline"
                  size="sm"
                  onClick={this.handleReset}
                  className="flex items-center gap-2"
                >
                  <RefreshCw className="h-4 w-4" />
                  Try Again
                </Button>
              </AlertDescription>
            </Alert>
          </CardContent>
        </Card>
      );
    }

    return this.props.children;
  }
}

export default ErrorBoundary;