/**
    * This file Copyright (c) 2017-2018 Magnolia International
    * Ltd.  (http://www.magnolia-cms.com). All rights reserved.
    *
    *
    * This file is dual-licensed under both the Magnolia
    * Network Agreement and the GNU General Public License.
    * You may elect to use one or the other of these licenses.
    *
   * This file is distributed in the hope that it will be
   * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
   * implied warranty of MERCHANTABILITY or FITNESS FOR A
   * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
   * Redistribution, except as permitted by whichever of the GPL
   * or MNA you select, is prohibited.
   *
   * 1. For the GPL license (GPL), you can redistribute and/or
   * modify this file under the terms of the GNU General
   * Public License, Version 3, as published by the Free Software
   * Foundation.  You should have received a copy of the GNU
   * General Public License, Version 3 along with this program;
   * if not, write to the Free Software Foundation, Inc., 51
   * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   *
   * 2. For the Magnolia Network Agreement (MNA), this file
   * and the accompanying materials are made available under the
   * terms of the MNA which accompanies this distribution, and
   * is available at http://www.magnolia-cms.com/mna.html
   *
   * Any modifications to this file must keep this entire header
   * intact.
   *
   */
  package info.magnolia.ui.framework.ioc;
  
  import info.magnolia.module.ModuleRegistry;
  import info.magnolia.module.model.ComponentsDefinition;
  import info.magnolia.module.model.ModuleDefinition;
  import info.magnolia.objectfactory.configuration.ComponentProviderConfiguration;
  import info.magnolia.objectfactory.configuration.ComponentProviderConfigurationBuilder;
  import info.magnolia.ui.api.app.AppDescriptor;
  import info.magnolia.ui.api.app.registry.AppDescriptorRegistry;
  
  import java.lang.annotation.Annotation;
  import java.util.List;
  import java.util.regex.Pattern;
  import java.util.stream.Collectors;
  
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import com.google.inject.Key;
  
  /**
   * Accumulate all the UI-related components in one {@link ComponentProviderConfiguration}.
   */
  public final class UiComponentConfigurationAggregator {
  
      private static final Logger log = LoggerFactory.getLogger(UiComponentConfigurationAggregator.class);
  
      private final static Pattern UI_SCOPE_ID_PATTERN = Pattern.compile("^(choosedialog|mediaeditor|admincentral|app|subapp|datasource)(?:-(.+?))*");
  
      private final List<String> appNames;
      private final List<ModuleDefinition> moduleDefinitions;
  
      public UiComponentConfigurationAggregator(ModuleRegistry moduleRegistry, AppDescriptorRegistry appDescriptorRegistry) {
          this(moduleRegistry.getModuleDefinitions(), appDescriptorRegistry.getAllDefinitions().stream().map(AppDescriptor::getName).collect(Collectors.toList()));
      }
  
      UiComponentConfigurationAggregator(List<ModuleDefinition> moduleDefinitions, List<String> appNames) {
          this.moduleDefinitions = moduleDefinitions;
          this.appNames = appNames;
      }
  
      public ComponentProviderConfiguration aggregate() {
          final ComponentProviderConfigurationBuilder builder = new ComponentProviderConfigurationBuilder() {
              @Override
              public void addComponents(ComponentProviderConfiguration configuration, ComponentsDefinition componentsDefinition) {
                  final String id = componentsDefinition.getId();
                  final Annotation bindingContext = UiAnnotations.parseAnnotation(id, appNames);
  
                  componentsDefinition.getComponents().forEach(componentDefinition -> {
                      componentDefinition.setBindingContext(bindingContext);
                      try {
                          configuration.addComponent(getComponent(componentDefinition));
                      } catch (Exception e) {
                          log.error("Failed to resolve UI component mapping of [{}] in context [{}]", componentDefinition.getType(), id, e);
                      }
                  });
  
                  componentsDefinition.getTypeMappings().forEach(typeMappingDefinition -> {
                      try {
                          Class<?> type = classForName(typeMappingDefinition.getType());
                          Class<?> implementation = classForName(typeMappingDefinition.getImplementation());
                          final Key typeMappingKey = bindingContext == null ? Key.get(type) : Key.get(type, bindingContext);
                          configuration.addTypeMapping(typeMappingKey, implementation);
                      } catch (Exception e) {
                          log.error("Failed to resolve UI component mapping of [{}] in context [{}]", typeMappingDefinition.getType(), id, e);
                      }
             });
             }
         };
 
         final ComponentProviderConfiguration componentProviderConfiguration = new ComponentProviderConfiguration();
         moduleDefinitions
             .stream()
             .flatMap(moduleDefinition -> moduleDefinition.getComponents().stream())
             .filter(componentsDefinition -> UI_SCOPE_ID_PATTERN.matcher(componentsDefinition.getId()).matches())
             .forEach(componentsDefinition -> builder.addComponents(componentProviderConfiguration, componentsDefinition));
 
         return componentProviderConfiguration;
     }
 }