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

interface Props {
  children: ReactNode
  fallback?: ReactNode
}

interface State {
  hasError: boolean
  error?: Error
  errorInfo?: ErrorInfo
}

export class ErrorBoundary extends Component<Props, State> {
  constructor(props: Props) {
    super(props)
    this.state = { hasError: false }
  }

  static getDerivedStateFromError(error: Error): State {
    return { hasError: true, error }
  }

  componentDidCatch(error: Error, errorInfo: ErrorInfo) {
    this.setState({
      error,
      errorInfo
    })
    
    // 这里可以将错误发送到日志服务
    // eslint-disable-next-line no-console
    console.error('ErrorBoundary caught an error:', error, errorInfo)
  }

  handleRetry = () => {
    this.setState({ hasError: false, error: undefined, errorInfo: undefined })
  }

  handleGoHome = () => {
    window.location.href = '/dashboard'
  }

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

      return (
        <div className="min-h-screen flex items-center justify-center bg-gray-50 p-4">
          <Card className="w-full max-w-md">
            <CardHeader className="text-center">
              <div className="flex justify-center mb-4">
                <AlertTriangle className="h-12 w-12 text-red-500" />
              </div>
              <CardTitle className="text-xl">出错了</CardTitle>
            </CardHeader>
            <CardContent className="space-y-4">
              <Alert variant="destructive">
                <AlertTriangle className="h-4 w-4" />
                <AlertDescription>
                  页面遇到了一个错误，无法正常显示。请尝试刷新页面或返回首页。
                </AlertDescription>
              </Alert>
              
              {import.meta.env.DEV && this.state.error && (
                <div className="p-4 bg-gray-100 rounded-md">
                  <h4 className="font-medium text-sm mb-2">错误详情：</h4>
                  <pre className="text-xs text-red-600 whitespace-pre-wrap">
                    {this.state.error.toString()}
                  </pre>
                  {this.state.errorInfo && (
                    <pre className="text-xs text-gray-600 mt-2 whitespace-pre-wrap">
                      {this.state.errorInfo.componentStack}
                    </pre>
                  )}
                </div>
              )}
              
              <div className="flex gap-2">
                <Button 
                  onClick={this.handleRetry}
                  className="flex-1"
                  variant="outline"
                >
                  <RefreshCw className="h-4 w-4 mr-2" />
                  重试
                </Button>
                <Button 
                  onClick={this.handleGoHome}
                  className="flex-1"
                >
                  <Home className="h-4 w-4 mr-2" />
                  返回首页
                </Button>
              </div>
            </CardContent>
          </Card>
        </div>
      )
    }

    return this.props.children
  }
}

export default ErrorBoundary