'use client';

import { Component, type ReactNode } from 'react';

type Props = {
  children: ReactNode;
  fallback?: ReactNode;
};

type State = {
  hasError: boolean;
  error: Error | null;
};

export class ErrorBoundary extends Component<Props, State> {
  constructor(props: Props) {
    super(props);
    this.state = { hasError: false, error: null };
  }

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

  componentDidCatch(error: Error, info: React.ErrorInfo) {
    console.error('[ErrorBoundary]', error, info.componentStack);
  }

  render() {
    if (this.state.hasError) {
      if (this.props.fallback) {
        return this.props.fallback;
      }
      return (
        <div className="flex min-h-[200px] flex-col items-center justify-center gap-3 p-6 text-center">
          <p className="text-sm text-neutral-600">页面出现异常</p>
          <button
            type="button"
            className="rounded bg-neutral-900 px-3 py-1.5 text-sm text-white hover:bg-neutral-800"
            onClick={() => this.setState({ hasError: false, error: null })}
          >
            重试
          </button>
        </div>
      );
    }
    return this.props.children;
  }
}
