'use client';

import { useState } from 'react';
import { useAuth } from '../context/AuthContext';
import { getStripe } from '../lib/stripe';

interface PaymentModalProps {
  isOpen: boolean;
  onClose: () => void;
  box: {
    id: string;
    tier: string;
    price: number;
    description: string;
  } | null;
}

export default function PaymentModal({ isOpen, onClose, box }: PaymentModalProps) {
  const { user } = useAuth();
  const [isLoading, setIsLoading] = useState(false);
  const [error, setError] = useState<string | null>(null);

  const handlePayment = async () => {
    if (!user || !box) return;

    setIsLoading(true);
    setError(null);

    try {
      console.log('Creating checkout session for:', box);
      
      // Create checkout session
      const response = await fetch('/api/create-checkout-session', {
        method: 'POST',
        headers: {
          'Content-Type': 'application/json',
        },
        body: JSON.stringify({
          boxId: box.id,
          boxName: box.tier,
          amount: box.price,
          currency: 'usd',
        }),
      });

      console.log('Checkout session response status:', response.status);

      if (!response.ok) {
        const errorData = await response.json();
        console.error('Checkout session error:', errorData);
        throw new Error(errorData.error || 'Failed to create checkout session');
      }

      const { sessionId } = await response.json();
      console.log('Checkout session created:', { sessionId });

      if (!sessionId) {
        throw new Error('No session ID received from server');
      }

      // Redirect to Stripe Checkout
      const stripe = await getStripe();
      if (!stripe) {
        throw new Error('Stripe failed to load');
      }

      console.log('Redirecting to Stripe Checkout...');
      
      const { error: stripeError } = await stripe.redirectToCheckout({
        sessionId,
      });

      if (stripeError) {
        console.error('Stripe error:', stripeError);
        throw new Error(stripeError.message);
      }
    } catch (err) {
      console.error('Payment error:', err);
      setError(err instanceof Error ? err.message : 'Payment failed');
    } finally {
      setIsLoading(false);
    }
  };

  if (!isOpen || !box) return null;

  return (
    <div className="fixed inset-0 bg-black/50 flex items-center justify-center z-50 p-4">
      <div className="bg-background rounded-2xl p-6 max-w-md w-full">
        {/* Header */}
        <div className="flex items-center justify-between mb-6">
          <h2 className="text-2xl font-bold">Open {box.tier} Box</h2>
          <button
            onClick={onClose}
            className="text-foreground/60 hover:text-foreground transition-colors"
          >
            ✕
          </button>
        </div>

        {/* Box Details */}
        <div className="mb-6">
          <div className="flex items-center gap-4 mb-4">
            <div className="w-16 h-16 bg-gradient-to-br from-purple-500 to-pink-500 rounded-lg flex items-center justify-center">
              <span className="text-2xl">🎁</span>
            </div>
            <div>
              <h3 className="text-xl font-semibold">{box.tier} Box</h3>
              <p className="text-foreground/60 text-sm">{box.description}</p>
            </div>
          </div>

          <div className="bg-foreground/5 rounded-lg p-4">
            <div className="flex justify-between items-center">
              <span className="text-foreground/60">Price:</span>
              <span className="text-xl font-bold">${box.price}</span>
            </div>
          </div>
        </div>

        {/* Error Message */}
        {error && (
          <div className="mb-4 p-3 bg-red-500/10 border border-red-500/20 rounded-lg">
            <p className="text-red-500 text-sm">{error}</p>
          </div>
        )}

        {/* Action Buttons */}
        <div className="flex gap-3">
          <button
            onClick={onClose}
            className="flex-1 px-4 py-3 rounded-lg border border-foreground/20 hover:bg-foreground/5 transition-colors"
            disabled={isLoading}
          >
            Cancel
          </button>
          <button
            onClick={handlePayment}
            disabled={isLoading}
            className="flex-1 px-4 py-3 rounded-lg bg-gradient-to-r from-purple-600 to-pink-600 text-white font-semibold hover:opacity-90 transition-opacity disabled:opacity-50"
          >
            {isLoading ? 'Processing...' : 'Pay & Open Box'}
          </button>
        </div>

        {/* Security Notice */}
        <p className="text-xs text-foreground/40 text-center mt-4">
          Your payment is secured by Stripe. We never store your card details.
        </p>
      </div>
    </div>
  );
}