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

interface Props {
  children: ReactNode;
}

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

class ErrorBoundary extends Component<Props, State> {
  public state: State = { hasError: false };

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

  public componentDidCatch(error: Error, errorInfo: React.ErrorInfo) {
    console.error('Applet Runtime Error:', error, errorInfo);
  }

  public render() {
    if (this.state.hasError) {
      return (
        <div style={{
          minHeight: '100vh',
          backgroundColor: '#030712',
          color: '#f8fafc',
          display: 'flex',
          flexDirection: 'column',
          alignItems: 'center',
          justifyContent: 'center',
          padding: '24px',
          textAlign: 'center',
          fontFamily: 'system-ui, sans-serif'
        }}>
          <div style={{ fontSize: '48px', marginBottom: '16px' }}>🔥</div>
          <h1 style={{ color: '#fb7185', fontSize: '24px', fontWeight: 'bold', margin: '0 0 8px 0' }}>
            Desi FLAMES & Kundali Lab
          </h1>
          <p style={{ color: '#94a3b8', fontSize: '14px', maxWidth: '480px', marginBottom: '20px' }}>
            {this.state.error?.message || 'A runtime error occurred.'}
          </p>
          <button
            onClick={() => window.location.reload()}
            style={{
              padding: '10px 20px',
              backgroundColor: '#e11d48',
              color: '#ffffff',
              border: 'none',
              borderRadius: '12px',
              fontWeight: 'bold',
              cursor: 'pointer'
            }}
          >
            Reload Application
          </button>
        </div>
      );
    }
    return this.props.children;
  }
}

const rootElement = document.getElementById('root');
if (rootElement) {
  try {
    const root = createRoot(rootElement);
    root.render(
      <StrictMode>
        <ErrorBoundary>
          <App />
        </ErrorBoundary>
      </StrictMode>
    );
  } catch (err) {
    console.error('Failed to mount root:', err);
  }
}