'use client';

import { useEffect, useState } from 'react';
import { usePushNotifications } from '@/hooks/usePushNotifications';
import { Bell, X } from 'lucide-react';

export default function NotificationPrompt() {
  const { permission, isSubscribed, subscribe } = usePushNotifications();
  const [showPrompt, setShowPrompt] = useState(false);
  const [dismissed, setDismissed] = useState(false);
  const [mounted, setMounted] = useState(false);

  useEffect(() => {
    setMounted(true);
  }, []);

  useEffect(() => {
    if (!mounted) return;

    // Check if we should show the prompt
    const shouldShow = 
      'Notification' in window &&
      'serviceWorker' in navigator &&
      permission === 'default' && // Not yet asked
      !isSubscribed && // Not subscribed
      !dismissed && // Not dismissed this session
      !localStorage.getItem('notification-prompt-dismissed'); // Not permanently dismissed

    if (shouldShow) {
      // Show prompt after a short delay (better UX)
      const timer = setTimeout(() => {
        setShowPrompt(true);
      }, 3000); // 3 seconds after app loads

      return () => clearTimeout(timer);
    }
  }, [mounted, permission, isSubscribed, dismissed]);

  const handleEnable = async () => {
    const success = await subscribe();
    if (success) {
      setShowPrompt(false);
    }
  };

  const handleDismiss = () => {
    setShowPrompt(false);
    setDismissed(true);
  };

  const handleDismissForever = () => {
    if (typeof localStorage !== 'undefined') {
      localStorage.setItem('notification-prompt-dismissed', 'true');
    }
    setShowPrompt(false);
    setDismissed(true);
  };

  if (!mounted || !showPrompt) {
    return null;
  }

  return (
    <div className="fixed bottom-4 right-4 left-4 sm:left-auto sm:w-96 z-50 animate-slide-up">
      <div className="bg-white rounded-lg shadow-2xl border border-gray-200 p-4">
        <div className="flex items-start gap-3">
          <div className="flex-shrink-0 w-10 h-10 bg-blue-100 rounded-full flex items-center justify-center">
            <Bell className="w-5 h-5 text-blue-600" />
          </div>
          
          <div className="flex-1 min-w-0">
            <h3 className="text-sm font-semibold text-gray-900 mb-1">
              Stay Updated
            </h3>
            <p className="text-sm text-gray-600 mb-3">
              Get notified when items are added, completed, or when you're invited to lists
            </p>
            
            <div className="flex gap-2">
              <button
                onClick={handleEnable}
                className="flex-1 px-3 py-2 bg-blue-600 text-white text-sm font-medium rounded-md hover:bg-blue-700 transition-colors"
              >
                Enable Notifications
              </button>
              <button
                onClick={handleDismiss}
                className="px-3 py-2 text-gray-600 text-sm font-medium hover:text-gray-900 transition-colors"
              >
                Later
              </button>
            </div>
            
            <button
              onClick={handleDismissForever}
              className="text-xs text-gray-500 hover:text-gray-700 mt-2 underline"
            >
              Don't ask again
            </button>
          </div>
          
          <button
            onClick={handleDismiss}
            className="flex-shrink-0 text-gray-400 hover:text-gray-600 transition-colors"
            aria-label="Close"
          >
            <X className="w-5 h-5" />
          </button>
        </div>
      </div>
    </div>
  );
}