'use client';

import { Button } from '@/components/ui/Button';
import { Heading } from '@/components/ui/Typography';
import { useTranslation } from '@/lib/hooks/useTranslation';
import { useAppDispatch } from '@/lib/redux/hooks';
import { loadBoxForEditing } from '@/lib/redux/slices/boxSlice';
import Price from 'components/price';
import { CartItem } from 'lib/shopify/types';
import { ChevronDown, ChevronUp, Pencil, Trash2 } from 'lucide-react';
import Image from 'next/image';
import { useRouter } from 'next/navigation';
import { useState } from 'react';
import { CartProductItem } from './CartProductItem';
import { getUniqueItemKey } from './processCartItems';

interface CartBoxItemProps {
  boxItem: CartItem;
  boxProducts: CartItem[];
  onUpdate: (merchandiseId: string, updateType: 'plus' | 'minus' | 'delete', itemId?: string) => void;
  isPending: boolean;
}

export function CartBoxItem({ boxItem, boxProducts, onUpdate, isPending }: CartBoxItemProps) {
  const { t } = useTranslation();
  const [isExpanded, setIsExpanded] = useState(true);
  const router = useRouter();
  const dispatch = useAppDispatch();
  
  // Get box attributes if any
  const boxGroupId = boxItem.attributes?.find(attr => attr.key === '_box_group_id')?.value || 'box';
  
  // Handle box deletion - delete box and all products inside it
  const handleBoxDelete = () => {
    // First update localStorage to reflect the box deletion
    try {
      const boxStateString = localStorage.getItem('lastBoxState');
      if (boxStateString) {
        const boxState = JSON.parse(boxStateString);
        
        // Check if this is the box that's currently saved for editing
        if (boxState.originalBoxGroupId === boxGroupId) {
          // Remove the box from localStorage
          localStorage.removeItem('lastBoxState');
        }
      }
    } catch (error) {
      console.error('Error updating box state in localStorage on delete', error);
    }
    
    // First delete the box container
    onUpdate(boxItem.merchandise.id, 'delete', boxItem.id);
    
    // Then delete all products inside the box
    boxProducts.forEach(product => {
      if (product.id) {
        onUpdate(product.merchandise.id, 'delete', product.id);
      }
    });
  };

  // Handle box editing
  const handleEditBox = () => {
    // Prvo pokušaj direktno spremiti trenutni boxGroupId u lokalno stanje
    try {
      const currentBoxState = localStorage.getItem('lastBoxState');
      let boxStateObject = currentBoxState ? JSON.parse(currentBoxState) : {};
      
      // Dodaj originalni boxGroupId da kasnije znamo što trebamo obrisati
      boxStateObject.originalBoxGroupId = boxGroupId;
      localStorage.setItem('lastBoxState', JSON.stringify(boxStateObject));
    } catch (error) {
      console.error('Failed to save original box group ID', error);
    }
    
    // Attempt to load box state for editing from localStorage
    dispatch(loadBoxForEditing());
    
    // Redirect to build-box page
    router.push('/build-box');
  };
  
  return (
    <div className="mb-6 border-b border-gray-200">
      {/* Box Header */}
      <div className="flex items-center justify-between py-4">
        <div className="flex items-center">
          {/* Box Image */}
          <div className="relative h-24 w-24 flex-shrink-0 overflow-hidden">
            <Image
              src={boxItem.merchandise.product.featuredImage?.url || ''}
              alt={boxItem.merchandise.product.title}
              fill
              className="object-cover"
            />
          </div>
          
          {/* Box Details */}
          <div className="pl-4">
            <Heading level={4}>
              {boxItem.merchandise.product.title}
            </Heading>
            <Price
              amount={boxItem.cost.totalAmount.amount}
              currencyCode={boxItem.cost.totalAmount.currencyCode}
              className="text-sm mt-1 font-bold"
            />
          </div>
        </div>
        
        {/* Box Actions */}
        <div className="flex items-center gap-6">
          <Button
            onClick={handleBoxDelete}
            variant="default"
            className="p-0 h-auto border-0 bg-transparent hover:bg-transparent text-gray-500 hover:text-red-500"
            disabled={isPending}
            aria-label={t('cart.remove')}
          >
            <Trash2 size={20} />
          </Button>
          
          <Button
            onClick={handleEditBox}
            variant="default"
            className="p-0 h-auto border-0 bg-transparent hover:bg-transparent text-gray-500 hover:text-gray-700"
            aria-label={t('cart.editBox')}
          >
            <Pencil size={20} />
          </Button>
          
          <Button
            onClick={() => setIsExpanded(!isExpanded)}
            variant="default"
            className="p-0 h-auto border-0 bg-transparent hover:bg-transparent text-gray-500 hover:text-gray-700"
            aria-label={isExpanded ? t('cart.collapseBox') : t('cart.expandBox')}
          >
            {isExpanded ? <ChevronUp size={20} /> : <ChevronDown size={20} />}
          </Button>
        </div>
      </div>
      
      {/* Box Products */}
      {isExpanded && boxProducts.length > 0 && (
        <div className="space-y-4 py-2 pb-4">
          <h4 className="text-sm font-medium text-gray-500 mb-2">{t('cart.customBoxContents')}</h4>
          {boxProducts.map((item, index) => (
            <CartProductItem
              key={getUniqueItemKey(item, boxGroupId, index)}
              item={item}
              onUpdate={onUpdate}
              isPending={isPending}
              isInBox={true}
              boxGroupId={boxGroupId}
            />
          ))}
        </div>
      )}
    </div>
  );
}