<?php

namespace App\Services\Product;

use App\Repositories\Product\ProductRepository;

class ProductService
{
    public function __construct(protected ProductRepository $repository) {}


    public function getListSceneData($categoryOrSlug, $search = null)
    {
        $allCategories = $this->repository->getActiveCategories();
        $parentCategories = $allCategories->whereNull('parent_id')->values();

        // 현재 선택된 카테고리 객체 찾기
        $currentCategory = is_numeric($categoryOrSlug)
            ? $allCategories->where('id', $categoryOrSlug)->first()
            : $allCategories->where('slug', $categoryOrSlug)->first();

        $menuItems = $parentCategories->map(function($parent) use ($allCategories, $currentCategory) {
            $children = $allCategories->where('parent_id', $parent->id)->values();

            return [
                'id' => $parent->id,
                'slug' => $parent->slug, // 슬러그 추가
                'label' => $parent->name,
                'url' => route('web.product.index', ['category' => $parent->slug]), // ID 대신 Slug로 URL 생성
                'children' => $children->map(function($child) {
                    return [
                        'id' => $child->id,
                        'slug' => $child->slug,
                        'label' => $child->name,
                        'url' => route('web.product.index', ['category' => $child->slug]),
                    ];
                })
            ];
        });

        $products = $this->repository->getActiveProducts($categoryOrSlug, $search);

        return [
            'menuItems' => $menuItems,
            'products' => $products,
            'currentCategory' => $currentCategory,
            'currentCategoryName' => $search ? "'{$search}' 검색 결과" : ($currentCategory ? $currentCategory->name : '전체 상품')
        ];
    }

    /**
     * 상품 상세 페이지 데이터 구성
     */
    public function getProductDetailData(int $id)
    {
        $product = $this->repository->getProductById($id);
        if (!$product) return null;

        $skus = $this->repository->getSkusByProductId($id);

        // 허용된 결제수단 조회
        $allowedPayments = json_decode($product->allowed_payments ?? '[]', true);
        $payments = $this->repository->getPaymentMethodsByIds($allowedPayments);

        // 사이드바용 카테고리 데이터 (기존 메서드 활용)
        $menuData = $this->getListSceneData(null);

        return [
            'product' => $product,
            'skus' => $skus,
            'payments' => $payments,
            'menuItems' => $menuData['menuItems'],
        ];
    }
}