import React, { Component, type ReactNode } from 'react'
import Taro from '@tarojs/taro'
import { View, Text, Button } from '@tarojs/components'
import './ErrorBoundary.scss'

interface ErrorBoundaryState {
  hasError: boolean
  error?: Error
  errorInfo?: React.ErrorInfo
}

interface ErrorBoundaryProps {
  children: ReactNode
  fallback?: ReactNode
  onError?: (error: Error, errorInfo: React.ErrorInfo) => void
}

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

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

  componentDidCatch(error: Error, errorInfo: React.ErrorInfo) {
    this.setState({ error, errorInfo })
    this.props.onError?.(error, errorInfo)
    console.error('ErrorBoundary caught an error:', error, errorInfo)
  }

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

  private handleReload = () => {
    Taro.reLaunch({ url: '/pages/index/index' })
  }

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

      return (
        <View className='error-boundary'>
          <View className='error-boundary__container'>
            <View className='error-boundary__icon'>!</View>
            <Text className='error-boundary__title'>页面出现了问题</Text>
            <Text className='error-boundary__message'>请稍后重试，或返回首页继续使用。</Text>
            {process.env.NODE_ENV === 'development' && (
              <View className='error-boundary__details'>
                <Text className='error-boundary__error-title'>错误详情</Text>
                <Text className='error-boundary__error-message'>{this.state.error?.message}</Text>
              </View>
            )}
            <View className='error-boundary__actions'>
              <Button className='error-boundary__button error-boundary__button--primary' onClick={this.handleReset}>
                重试
              </Button>
              <Button className='error-boundary__button error-boundary__button--secondary' onClick={this.handleReload}>
                返回首页
              </Button>
            </View>
          </View>
        </View>
      )
    }

    return this.props.children
  }
}

export default ErrorBoundary
