"use client";

import React, { Component, ReactNode } from "react";
import { Button } from "@/components/ui/button";
import { Card, CardContent, CardDescription, CardHeader, CardTitle } from "@/components/ui/card";
import { AlertCircle, RefreshCw } from "lucide-react";
import { useTranslations } from "next-intl";

interface Props {
  children: ReactNode;
  fallback?: ReactNode;
  onError?: (error: Error, errorInfo: React.ErrorInfo) => void;
}

interface State {
  hasError: boolean;
  error: Error | null;
  errorInfo: React.ErrorInfo | null;
}

interface DefaultP2PErrorUIProps {
  error: Error | null;
  errorInfo: React.ErrorInfo | null;
  onReset: () => void;
}

function DefaultP2PErrorUI({ error, errorInfo, onReset }: DefaultP2PErrorUIProps) {
  const t = useTranslations("common");
  const tCommon = useTranslations("common");

  return (
    <div className="flex items-center justify-center min-h-[400px] p-4">
      <Card className="max-w-lg w-full">
        <CardHeader>
          <div className="flex items-center gap-2">
            <AlertCircle className="h-6 w-6 text-destructive" />
            <CardTitle>{t("something_went_wrong")}</CardTitle>
          </div>
          <CardDescription>
            {t("we_encountered_an_error_while_loading_this_page")}
          </CardDescription>
        </CardHeader>
        <CardContent className="space-y-4">
          {process.env.NODE_ENV === "development" && error && (
            <div className="p-4 bg-muted rounded-lg">
              <p className="text-sm font-mono text-muted-foreground">
                {error.message}
              </p>
              {errorInfo && (
                <details className="mt-2">
                  <summary className="cursor-pointer text-sm text-muted-foreground">
                    {t("component_stack")}
                  </summary>
                  <pre className="mt-2 text-xs overflow-auto">
                    {errorInfo.componentStack}
                  </pre>
                </details>
              )}
            </div>
          )}

          <div className="flex gap-2">
            <Button onClick={onReset} variant="default">
              <RefreshCw className="mr-2 h-4 w-4" />
              {tCommon("try_again")}
            </Button>
            <Button
              variant="outline"
              onClick={() => window.location.href = "/p2p"}
            >
              {t("go_to_p2p_home")}
            </Button>
          </div>
        </CardContent>
      </Card>
    </div>
  );
}

export class P2PErrorBoundary extends Component<Props, State> {
  constructor(props: Props) {
    super(props);
    this.state = { hasError: false, error: null, errorInfo: null };
  }

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

  componentDidCatch(error: Error, errorInfo: React.ErrorInfo) {
    console.error("P2P Error Boundary caught an error:", error, errorInfo);

    // Call optional error handler
    if (this.props.onError) {
      this.props.onError(error, errorInfo);
    }

    // Update state with error info
    this.setState({
      error,
      errorInfo,
    });

    // Log to error reporting service
    if (typeof window !== "undefined" && window.location.hostname !== "localhost") {
      // TODO: Send to error reporting service (e.g., Sentry)
    }
  }

  handleReset = () => {
    this.setState({ hasError: false, error: null, errorInfo: null });
  };

  render() {
    if (this.state.hasError) {
      // Custom fallback UI
      if (this.props.fallback) {
        return <>{this.props.fallback}</>;
      }

      // Default error UI
      return (
        <DefaultP2PErrorUI
          error={this.state.error}
          errorInfo={this.state.errorInfo}
          onReset={this.handleReset}
        />
      );
    }

    return this.props.children;
  }
}

// Hook for functional components
export function useP2PErrorHandler() {
  const [error, setError] = React.useState<Error | null>(null);

  React.useEffect(() => {
    if (error) {
      throw error;
    }
  }, [error]);

  const resetError = () => setError(null);

  const captureError = (error: Error) => {
    console.error("P2P Error captured:", error);
    setError(error);
  };

  return { captureError, resetError };
}