/*
    * Licensed to the Apache Software Foundation (ASF) under one or more
    * contributor license agreements. See the NOTICE file distributed with
    * this work for additional information regarding copyright ownership.
    * The ASF licenses this file to You 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
    *
    *      http://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.apache.logging.log4j.catalog.service;
  
  import javax.annotation.PostConstruct;
  import java.util.ArrayList;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  
  import org.apache.logging.log4j.LogManager;
  import org.apache.logging.log4j.Logger;
  import org.apache.logging.log4j.catalog.api.dao.CatalogDao;
  import org.apache.logging.log4j.catalog.api.Attribute;
  import org.apache.logging.log4j.catalog.api.CatalogData;
  import org.apache.logging.log4j.catalog.api.Category;
  import org.apache.logging.log4j.catalog.api.Event;
  import org.apache.logging.log4j.catalog.api.Product;
  import org.apache.logging.log4j.catalog.jpa.converter.AttributeConverter;
  import org.apache.logging.log4j.catalog.jpa.converter.CategoryConverter;
  import org.apache.logging.log4j.catalog.jpa.converter.EventConverter;
  import org.apache.logging.log4j.catalog.jpa.converter.ProductConverter;
  import org.apache.logging.log4j.catalog.jpa.model.AttributeModel;
  import org.apache.logging.log4j.catalog.jpa.model.CategoryModel;
  import org.apache.logging.log4j.catalog.jpa.model.EventModel;
  import org.apache.logging.log4j.catalog.jpa.model.ProductModel;
  import org.apache.logging.log4j.catalog.jpa.service.AttributeService;
  import org.apache.logging.log4j.catalog.jpa.service.CategoryService;
  import org.apache.logging.log4j.catalog.jpa.service.EventService;
  import org.apache.logging.log4j.catalog.jpa.service.ProductService;
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.stereotype.Component;
  
  /**
   *
   */
  @Component
  public class CatalogInitializer {
      private static final Logger logger = LogManager.getLogger(CatalogInitializer.class);
  
      @Autowired
      AttributeService attributeService;
  
      @Autowired
      EventService eventService;
  
      @Autowired
      CategoryService categoryService;
  
      @Autowired
      ProductService productService;
  
      @Autowired
      CatalogDao catalogDao;
  
      @Autowired
      AttributeConverter attributeConverter;
  
      @Autowired
      EventConverter eventConverter;
  
      @Autowired
      CategoryConverter categoryConverter;
  
      @Autowired
      ProductConverter productConverter;
  
      @PostConstruct
      private void initialize() {
          logger.debug("Performing initialization");
          CatalogData catalogData = catalogDao.read();
  
          logger.debug("Loading attributes");
          List<AttributeModel> attributeModels = new ArrayList<>();
          for (Attribute attribute : catalogData.getAttributes()) {
              AttributeModel model = attributeConverter.convert(attribute);
              attributeService.saveAttribute(model);
              attributeModels.add(model);
          }
          Map<String, EventModel> eventMap = new HashMap<>();
          logger.debug("Loading events");
          for (Event event : catalogData.getEvents()) {
              logger.debug("Processing Event: {}", event);
              EventModel model = eventConverter.convert(event);
              logger.debug("Created EventModel: {} ", model);
             eventMap.put(event.getName(), model);
             eventService.saveEvent(model);
         }
         logger.debug("Loading categories");
         for (Category category : catalogData.getCategories()) {
             CategoryModel model = categoryConverter.convert(category);
             categoryService.saveCategory(model);
         }
         logger.debug("loading products");
         for (Product product : catalogData.getProducts()) {
             ProductModel model = productConverter.convert(product);
             productService.saveProduct(model);
         }
     }
 }