"use client";

import { Component, type ReactNode } from "react";
import Link from "next/link";

interface ErrorBoundaryProps {
  children: ReactNode;
}

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

/**
 * Error boundary component for graceful error handling
 * Uses PDA-friendly language and calm visual design
 */
export 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: React.ErrorInfo): void {
    // Log to console for debugging (could also send to error tracking service)
    console.error("Component error:", error, errorInfo);
  }

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

  render(): React.ReactNode {
    if (this.state.hasError) {
      return (
        <div className="min-h-screen flex items-center justify-center bg-gray-50 px-4">
          <div className="max-w-md w-full text-center space-y-6">
            {/* Icon - calm blue instead of alarming red */}
            <div className="flex justify-center">
              <div className="rounded-full bg-blue-100 p-3">
                <svg
                  className="w-8 h-8 text-blue-600"
                  fill="none"
                  stroke="currentColor"
                  viewBox="0 0 24 24"
                >
                  <path
                    strokeLinecap="round"
                    strokeLinejoin="round"
                    strokeWidth={2}
                    d="M13 16h-1v-4h-1m1-4h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"
                  />
                </svg>
              </div>
            </div>

            {/* Message - PDA-friendly, no harsh language */}
            <div className="space-y-2">
              <h1 className="text-2xl font-semibold text-gray-900">
                Something unexpected happened
              </h1>
              <p className="text-gray-600">
                The page ran into an issue while loading. You can try refreshing or head back home
                to continue.
              </p>
            </div>

            {/* Actions */}
            <div className="flex flex-col gap-3 pt-4">
              <button
                onClick={this.handleReload}
                className="inline-flex items-center justify-center px-4 py-2 border border-transparent text-base font-medium rounded-md text-white bg-blue-600 hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-blue-500"
              >
                Refresh page
              </button>

              <Link
                href="/"
                className="inline-flex items-center justify-center px-4 py-2 border border-gray-300 text-base font-medium rounded-md text-gray-700 bg-white hover:bg-gray-50 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-blue-500"
              >
                Go home
              </Link>
            </div>

            {/* Technical details in dev mode */}
            {process.env.NODE_ENV === "development" && this.state.error && (
              <details className="mt-8 text-left">
                <summary className="cursor-pointer text-sm text-gray-500 hover:text-gray-700">
                  Technical details
                </summary>
                <pre className="mt-2 text-xs text-gray-600 bg-gray-100 p-3 rounded overflow-auto max-h-40">
                  {this.state.error.message}
                  {"\n\n"}
                  {this.state.error.stack}
                </pre>
              </details>
            )}
          </div>
        </div>
      );
    }

    return this.props.children;
  }
}