import React, { Component, ErrorInfo, ReactNode } 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 | null;
  errorInfo: ErrorInfo | null;
}

const ComponentBase: any = React.Component;

class RootErrorBoundary extends ComponentBase {
  public state: ErrorBoundaryState = {
    hasError: false,
    error: null,
    errorInfo: null,
  };

  constructor(props: ErrorBoundaryProps) {
    super(props);
  }

  static getDerivedStateFromError(error: Error): Partial<ErrorBoundaryState> {
    return { hasError: true, error };
  }

  componentDidCatch(error: Error, errorInfo: ErrorInfo) {
    console.error('RootErrorBoundary caught an uncaught exception:', error, errorInfo);
    this.setState({ errorInfo });
  }

  handleReload = () => {
    window.location.reload();
  };

  handleResetAndReload = () => {
    try {
      localStorage.clear();
      sessionStorage.clear();
    } catch (e) {
      console.warn('Gagal membersihkan cache storage:', e);
    }
    window.location.reload();
  };

  render() {
    if (this.state.hasError) {
      return (
        <div className="min-h-screen bg-zinc-950 text-zinc-100 flex items-center justify-center p-6 select-text">
          <div className="max-w-lg w-full bg-zinc-900 border border-zinc-800 rounded-2xl p-6 shadow-2xl space-y-4">
            <div className="flex items-center gap-3">
              <div className="w-10 h-10 rounded-xl bg-amber-500/10 border border-amber-500/30 flex items-center justify-center text-amber-400 font-bold text-lg">
                !
              </div>
              <div>
                <h1 className="text-base font-semibold text-zinc-100">Terjadi Kendala Memuat Komponen</h1>
                <p className="text-xs text-zinc-400">Aplikasi mendeteksi error pada inisialisasi tampilan.</p>
              </div>
            </div>

            <div className="bg-zinc-950 border border-zinc-800/80 rounded-xl p-3 text-xs font-mono text-amber-300/90 break-words max-h-40 overflow-y-auto">
              {this.state.error?.message || 'Unknown error occurred'}
            </div>

            <div className="flex items-center gap-3 pt-2">
              <button
                type="button"
                onClick={this.handleReload}
                className="flex-1 px-4 py-2 bg-amber-500 hover:bg-amber-400 text-zinc-950 font-semibold text-xs rounded-lg transition-colors cursor-pointer"
              >
                Muat Ulang Halaman
              </button>
              <button
                type="button"
                onClick={this.handleResetAndReload}
                className="px-4 py-2 bg-zinc-800 hover:bg-zinc-700 text-zinc-300 font-medium text-xs rounded-lg transition-colors cursor-pointer"
                title="Hapus cache draft lokal yang mungkin korup"
              >
                Reset Cache & Muat Ulang
              </button>
            </div>
          </div>
        </div>
      );
    }

    return this.props.children;
  }
}

const rootElement = document.getElementById('root');
if (rootElement) {
  createRoot(rootElement).render(
    <React.StrictMode>
      <RootErrorBoundary>
        <App />
      </RootErrorBoundary>
    </React.StrictMode>,
  );
} else {
  console.error('Target root element #root not found.');
}