import React, { useState, useEffect } from 'react';
import { createPayPalOrder } from '../../services/api/paymentService';
import { Loader2, AlertCircle } from 'lucide-react';

interface PayPalPaymentWrapperProps {
  bookingId: number;
  amount: number;
  currency?: string;
  onError?: (error: string) => void;
}

const PayPalPaymentWrapper: React.FC<PayPalPaymentWrapperProps> = ({
  bookingId,
  amount,
  currency = 'USD',
  onError,
}) => {
  const [loading, setLoading] = useState(true);
  const [error, setError] = useState<string | null>(null);
  const [approvalUrl, setApprovalUrl] = useState<string | null>(null);

  // Initialize PayPal order
  useEffect(() => {
    const initializePayPal = async () => {
      try {
        setLoading(true);
        setError(null);

        // Get current URL for return/cancel URLs
        const currentUrl = window.location.origin;
        const returnUrl = `${currentUrl}/payment/paypal/return?bookingId=${bookingId}`;
        const cancelUrl = `${currentUrl}/payment/paypal/cancel?bookingId=${bookingId}`;

        const response = await createPayPalOrder(
          bookingId,
          amount,
          currency,
          returnUrl,
          cancelUrl
        );

        if (response.success && response.data) {
          const { approval_url } = response.data;
          
          if (!approval_url) {
            throw new Error('Approval URL not received from server');
          }
          
          setApprovalUrl(approval_url);
        } else {
          throw new Error(response.message || 'Failed to initialize PayPal payment');
        }
      } catch (err: any) {
        console.error('Error initializing PayPal:', err);
        const errorMessage = err.response?.data?.message || err.message || 'Failed to initialize PayPal payment';
        setError(errorMessage);
        if (onError) {
          onError(errorMessage);
        }
      } finally {
        setLoading(false);
      }
    };

    initializePayPal();
  }, [bookingId, amount, currency, onError]);

  const handlePayPalClick = () => {
    if (approvalUrl) {
      // Redirect to PayPal approval page
      window.location.href = approvalUrl;
    }
  };

  if (loading) {
    return (
      <div className="flex items-center justify-center p-8">
        <Loader2 className="w-8 h-8 animate-spin text-indigo-600" />
        <span className="ml-2 text-gray-600">Initializing PayPal payment...</span>
      </div>
    );
  }

  if (error) {
    return (
      <div className="bg-red-50 border border-red-200 rounded-lg p-6">
        <div className="flex items-start gap-3">
          <AlertCircle className="w-5 h-5 text-red-600 mt-0.5" />
          <div>
            <h3 className="text-lg font-semibold text-red-900 mb-1">
              Payment Initialization Failed
            </h3>
            <p className="text-sm text-red-800">
              {error || 'Unable to initialize PayPal payment. Please try again.'}
            </p>
          </div>
        </div>
      </div>
    );
  }

  if (!approvalUrl) {
    return (
      <div className="flex items-center justify-center p-8">
        <Loader2 className="w-8 h-8 animate-spin text-indigo-600" />
        <span className="ml-2 text-gray-600">Loading PayPal...</span>
      </div>
    );
  }

  return (
    <div className="bg-white rounded-lg border border-gray-200 p-6">
      <div className="text-center">
        <div className="mb-4">
          <svg
            className="mx-auto h-12 w-auto"
            viewBox="0 0 283 64"
            fill="none"
            xmlns="http://www.w3.org/2000/svg"
          >
            <path
              d="M141.04 16c-11.04 0-19 7.2-19 18s8.96 18 20 18c6.67 0 12.55-2.64 16.19-7.09l-7.65-4.42c-2.02 2.21-5.09 3.5-8.54 3.5-4.79 0-8.86-2.5-10.37-6.5h28.02c.22-1.12.35-2.28.35-3.5 0-10.79-7.96-17.99-19-17.99zm-9.46 14.5c1.25-3.99 4.67-6.5 9.45-6.5 4.79 0 8.21 2.51 9.45 6.5h-18.9zM248.72 16c-11.04 0-19 7.2-19 18s8.96 18 20 18c6.67 0 12.55-2.64 16.19-7.09l-7.65-4.42c-2.02 2.21-5.09 3.5-8.54 3.5-4.79 0-8.86-2.5-10.37-6.5h28.02c.22-1.12.35-2.28.35-3.5 0-10.79-7.96-17.99-19-17.99zm-9.45 14.5c1.25-3.99 4.67-6.5 9.45-6.5 4.79 0 8.21 2.51 9.45 6.5h-18.9zM200.24 34c0 6 3.92 10 10 10 4.12 0 7.21-1.87 8.8-4.92l7.68 4.43c-3.18 5.3-9.14 8.49-16.48 8.49-11.05 0-19-7.2-19-18s7.96-18 19-18c7.34 0 13.29 3.19 16.48 8.49l-7.68 4.43c-1.59-3.05-4.68-4.92-8.8-4.92-6.07 0-10 4-10 10zm82.48-29v46h-9V5h9zM36.95 0L73.9 64H0L36.95 0zm92.38 5l-27.71 48L73.91 5H84.3l17.32 30 17.32-30h10.39zm58.91 12v9.69c-1-.29-2.06-.49-3.2-.49-5.81 0-10 4-10 10V51h-9V17h9v9.2c0-5.08 5.7-9.2 12.2-9.2z"
              fill="#003087"
            />
          </svg>
        </div>
        <h3 className="text-lg font-semibold text-gray-900 mb-2">
          Complete Payment with PayPal
        </h3>
        <p className="text-sm text-gray-600 mb-6">
          You will be redirected to PayPal to securely complete your payment of{' '}
          <span className="font-semibold">
            {new Intl.NumberFormat('en-US', {
              style: 'currency',
              currency: currency,
            }).format(amount)}
          </span>
        </p>
        <button
          onClick={handlePayPalClick}
          className="w-full bg-[#0070ba] hover:bg-[#005ea6] text-white font-semibold py-3 px-6 rounded-lg transition-colors duration-200 flex items-center justify-center gap-2"
        >
          <svg
            className="w-6 h-6"
            viewBox="0 0 24 24"
            fill="currentColor"
          >
            <path d="M7.076 21.337H2.47a.641.641 0 0 1-.633-.74L4.944.901C5.026.382 5.474 0 5.998 0h7.46c2.57 0 4.578.543 5.69 1.81 1.01 1.15 1.304 2.42 1.012 4.287-.023.143-.047.288-.077.437-.983 5.05-4.349 6.797-8.647 6.797h-2.19c-.524 0-.968.382-1.05.9l-1.12 7.203zm14.146-14.42a.477.477 0 0 0-.414-.24h-3.84c-.48 0-.856.355-.932.826-.075.47-.232 1.21-.232 1.21s-.156-.74-.232-1.21a.957.957 0 0 0-.932-.826H5.342a.957.957 0 0 0-.932.826c-.076.47-.232 1.21-.232 1.21s-.156-.74-.232-1.21a.957.957 0 0 0-.932-.826H.477a.477.477 0 0 0-.414.24c-.11.19-.14.426-.08.643.06.217.2.4.388.51l.04.02c.19.11.426.14.643.08.217-.06.4-.2.51-.388l.01-.02c.11-.19.14-.426.08-.643a.955.955 0 0 0-.388-.51l-.01-.01a.955.955 0 0 0-.51-.388.955.955 0 0 0-.643.08l-.01.01a.955.955 0 0 0-.388.51c-.06.217-.03.453.08.643l.01.02c.11.188.293.328.51.388.217.06.453.03.643-.08l.01-.02c.188-.11.328-.293.388-.51.06-.217.03-.453-.08-.643l-.01-.01z"/>
          </svg>
          Pay with PayPal
        </button>
        <p className="text-xs text-gray-500 mt-4">
          Secure payment powered by PayPal
        </p>
      </div>
    </div>
  );
};

export default PayPalPaymentWrapper;