/*
    *    Copyright 2010-2026 the original author or authors.
    *
    *    Licensed under the Apache License, Version 2.0 (the "License");
    *    you may not use this file except in compliance with the License.
    *    You may obtain a copy of the License at
    *
    *       https://www.apache.org/licenses/LICENSE-2.0
    *
   *    Unless required by applicable law or agreed to in writing, software
   *    distributed under the License is distributed on an "AS IS" BASIS,
   *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   *    See the License for the specific language governing permissions and
   *    limitations under the License.
   */
  package org.mybatis.jpetstore.service;
  
  import java.util.ArrayList;
  import java.util.List;
  
  import org.mybatis.jpetstore.domain.Category;
  import org.mybatis.jpetstore.domain.Item;
  import org.mybatis.jpetstore.domain.Product;
  import org.mybatis.jpetstore.mapper.CategoryMapper;
  import org.mybatis.jpetstore.mapper.ItemMapper;
  import org.mybatis.jpetstore.mapper.ProductMapper;
  import org.springframework.stereotype.Service;
  
  /**
   * The Class CatalogService.
   */
  @Service
  public class CatalogService {
  
    /** The category mapper. */
    private final CategoryMapper categoryMapper;
    /** The item mapper. */
    private final ItemMapper itemMapper;
    /** The product mapper. */
    private final ProductMapper productMapper;
  
    /**
     * Instantiates a new catalog service.
     *
     * @param categoryMapper
     *          the category mapper
     * @param itemMapper
     *          the item mapper
     * @param productMapper
     *          the product mapper
     */
    public CatalogService(CategoryMapper categoryMapper, ItemMapper itemMapper, ProductMapper productMapper) {
      this.categoryMapper = categoryMapper;
      this.itemMapper = itemMapper;
      this.productMapper = productMapper;
    }
  
    /**
     * Gets the category list.
     *
     * @return the category list
     */
    public List<Category> getCategoryList() {
      return categoryMapper.getCategoryList();
    }
  
    /**
     * Get category.
     *
     * @param categoryId
     *          the category id
     *
     * @return the category
     */
    public Category getCategory(String categoryId) {
      return categoryMapper.getCategory(categoryId);
    }
  
    /**
     * Get product.
     *
     * @param productId
     *          the product id
     *
     * @return the product
     */
    public Product getProduct(String productId) {
      return productMapper.getProduct(productId);
    }
  
    /**
     * Get product list by category.
     *
     * @param categoryId
     *          the category id
     *
     * @return the list
     */
    public List<Product> getProductListByCategory(String categoryId) {
     return productMapper.getProductListByCategory(categoryId);
   }
 
   /**
    * Search product list.
    *
    * @param keywords
    *          the keywords
    *
    * @return the list
    */
   public List<Product> searchProductList(String keywords) {
     List<Product> products = new ArrayList<>();
     for (String keyword : keywords.split("\\s+")) {
       products.addAll(productMapper.searchProductList("%" + keyword.toLowerCase() + "%"));
     }
     return products;
   }
 
   /**
    * Get item list by product.
    *
    * @param productId
    *          the product id
    *
    * @return the list
    */
   public List<Item> getItemListByProduct(String productId) {
     return itemMapper.getItemListByProduct(productId);
   }
 
   /**
    * Get item.
    *
    * @param itemId
    *          the item id
    *
    * @return the item
    */
   public Item getItem(String itemId) {
     return itemMapper.getItem(itemId);
   }
 
   /**
    * Is item in stock.
    *
    * @param itemId
    *          the item id
    *
    * @return true, if successful
    */
   public boolean isItemInStock(String itemId) {
     return itemMapper.getInventoryQuantity(itemId) > 0;
   }
 }