import { Component, ErrorInfo, ReactNode, StrictMode } from 'react';
import { createRoot } from 'react-dom/client';
import App from './App.tsx';
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: ErrorInfo) {
    console.error('Uncaught error:', error, errorInfo);
  }

  render() {
    if (this.state.hasError) {
      return (
        <div className="min-h-screen bg-slate-950 text-slate-100 flex items-center justify-center p-4">
          <div className="bg-slate-900 border border-red-500/30 rounded-2xl p-6 max-w-md w-full text-center space-y-4 shadow-xl">
            <div className="w-12 h-12 rounded-full bg-red-500/10 text-red-400 flex items-center justify-center mx-auto">
              <svg className="w-6 h-6" fill="none" viewBox="0 0 24 24" stroke="currentColor">
                <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-3L13.732 4c-.77-1.333-2.694-1.333-3.464 0L3.34 16c-.77 1.333.192 3 1.732 3z" />
              </svg>
            </div>
            <h2 className="text-lg font-bold text-white">অ্যাপ্লিকেশন লোড হতে সমস্যা হয়েছে</h2>
            <p className="text-xs text-slate-400">
              {this.state.error?.message || 'একটি অনাকাঙ্ক্ষিত সমস্যা দেখা দিয়েছে। দয়া করে পেজটি রিফ্রেশ করুন।'}
            </p>
            <div className="flex gap-2 justify-center pt-2">
              <button
                onClick={() => {
                  localStorage.clear();
                  window.location.reload();
                }}
                className="px-4 py-2 bg-emerald-600 hover:bg-emerald-500 text-white text-xs font-semibold rounded-lg transition"
              >
                ক্যাশ ক্লিয়ার করে রিলোড
              </button>
            </div>
          </div>
        </div>
      );
    }
    return this.props.children;
  }
}

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