import React from 'react';
import { AlertTriangle, RefreshCw, Home } from 'lucide-react';

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

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

  componentDidCatch(error, errorInfo) {
    console.error('DiffWeave Caught Runtime Error:', error, errorInfo);
    this.setState({ errorInfo });
  }

  handleReset = () => {
    this.setState({ hasError: false, error: null, errorInfo: null });
    window.location.href = '/';
  };

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

  render() {
    if (this.state.hasError) {
      return (
        <div className="min-h-screen bg-[#080B11] text-slate-100 flex items-center justify-center p-6">
          <div className="max-w-lg w-full bg-[#0D1117] border border-rose-500/30 rounded-2xl p-8 shadow-2xl space-y-6 text-center">
            <div className="w-16 h-16 rounded-2xl bg-rose-500/10 border border-rose-500/20 text-rose-400 flex items-center justify-center mx-auto shadow-lg shadow-rose-500/10">
              <AlertTriangle className="w-8 h-8" />
            </div>

            <div className="space-y-2">
              <h2 className="text-xl font-bold text-white tracking-tight">Something went wrong</h2>
              <p className="text-xs text-slate-400">
                DiffWeave encountered an unexpected client error. Don't worry, your workspace data and documents are safely stored.
              </p>
            </div>

            {this.state.error && (
              <div className="p-3.5 rounded-xl bg-black/60 border border-[#30363D] text-left overflow-auto max-h-40">
                <p className="font-mono text-xs text-rose-400 font-semibold break-words">
                  {this.state.error.toString()}
                </p>
              </div>
            )}

            <div className="flex items-center justify-center space-x-3 pt-2">
              <button
                onClick={this.handleReload}
                className="px-4 py-2.5 rounded-xl bg-[#21262D] hover:bg-[#30363D] border border-[#30363D] text-slate-200 text-xs font-semibold flex items-center space-x-2 transition"
              >
                <RefreshCw className="w-3.5 h-3.5" />
                <span>Reload Page</span>
              </button>

              <button
                onClick={this.handleReset}
                className="px-4 py-2.5 rounded-xl bg-emerald-600 hover:bg-emerald-500 text-white text-xs font-bold flex items-center space-x-2 transition shadow-lg shadow-emerald-600/20"
              >
                <Home className="w-3.5 h-3.5" />
                <span>Return to Hub</span>
              </button>
            </div>
          </div>
        </div>
      );
    }

    return this.props.children;
  }
}