import React from 'react'
import { logger } from '../lib/logger.js'

export default class ErrorBoundary extends React.Component {
  constructor(props) {
    super(props)
    this.state = { hasError: false, error: null }
  }

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

  componentDidCatch(error, errorInfo) {
    logger.error('React component error', {
      stack: (error?.stack || '') + '\n\nComponent stack:\n' + (errorInfo?.componentStack || ''),
    })
  }

  render() {
    if (this.state.hasError) {
      return (
        <div style={{
          minHeight: '100vh',
          display: 'flex',
          alignItems: 'center',
          justifyContent: 'center',
          padding: '2rem',
          fontFamily: 'sans-serif',
          background: '#f8fafc',
          color: '#0f172a',
        }}>
          <div style={{ maxWidth: 600, textAlign: 'center' }}>
            <h1 style={{ fontSize: '1.5rem', marginBottom: '0.5rem' }}>
              ⚠️ 頁面發生錯誤 / Something went wrong
            </h1>
            <p style={{ color: '#64748b', marginBottom: '1.5rem' }}>
              已經將錯誤自動回報俾 IT狗。請 reload 或者返回上一頁。
            </p>
            <button
              onClick={() => window.location.reload()}
              style={{
                padding: '0.5rem 1rem',
                background: '#2563eb',
                color: 'white',
                border: 'none',
                borderRadius: '0.375rem',
                cursor: 'pointer',
              }}
            >
              Reload Page
            </button>
            {this.state.error?.message && (
              <pre style={{
                marginTop: '1.5rem',
                padding: '1rem',
                background: '#f1f5f9',
                borderRadius: '0.375rem',
                fontSize: '0.75rem',
                textAlign: 'left',
                whiteSpace: 'pre-wrap',
                wordBreak: 'break-word',
              }}>
                {this.state.error.message}
              </pre>
            )}
          </div>
        </div>
      )
    }
    return this.props.children
  }
}