import React, { Component, ReactNode } from 'react';
import ReactDOM from 'react-dom/client';
import App from './App';
import './index.css';

interface ErrorBoundaryProps {
  children: ReactNode;
}

interface ErrorBoundaryState {
  hasError: boolean;
  error?: Error;
}

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

  handleReset = () => {
    localStorage.clear();
    window.location.reload();
  };

  render() {
    if (this.state.hasError) {
      return (
        <div className="min-h-screen bg-slate-50 flex items-center justify-center p-4">
          <div className="bg-white border border-slate-200 rounded-2xl p-6 max-w-md w-full text-center shadow-lg space-y-4">
            <div className="w-12 h-12 rounded-full bg-emerald-50 text-emerald-600 flex items-center justify-center mx-auto text-2xl font-bold">
              🌱
            </div>
            <h2 className="text-lg font-bold text-slate-900">
              Innovating Classrooms for a Sustainable Future
            </h2>
            <p className="text-sm text-slate-600">
              พบข้อผิดพลาดในการโหลดข้อมูลเดิม กดปุ่มด้านล่างเพื่อคืนค่าเริ่มต้นและโหลดใหม่อีกครั้ง
            </p>
            <button
              onClick={this.handleReset}
              className="px-5 py-2.5 rounded-xl bg-emerald-600 hover:bg-emerald-700 text-white text-sm font-semibold transition-colors cursor-pointer shadow-xs inline-block"
            >
              รีเฟรชและคืนค่าเริ่มต้น (Reload App)
            </button>
          </div>
        </div>
      );
    }
    return this.props.children;
  }
}

ReactDOM.createRoot(document.getElementById('root')!).render(
  <React.StrictMode>
    <ErrorBoundary>
      <App />
    </ErrorBoundary>
  </React.StrictMode>
);