/*
    * 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.myfaces.tobago.internal.context;
  
  import org.apache.myfaces.tobago.context.Theme;
  import org.apache.myfaces.tobago.context.ThemeImpl;
  import org.apache.myfaces.tobago.internal.config.TobagoConfigImpl;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  
  class ThemeBuilder {
  
    private static final Logger LOG = LoggerFactory.getLogger(ThemeBuilder.class);
  
    private List<ThemeImpl> availableThemes = new ArrayList<ThemeImpl>();
    private TobagoConfigImpl tobagoConfig;
  
    ThemeBuilder(TobagoConfigImpl tobagoConfig) {
      this.tobagoConfig = tobagoConfig;
    }
  
    public void resolveThemes() {
      Map<String, ThemeImpl> map = new HashMap<String, ThemeImpl>();
      for (ThemeImpl theme : availableThemes) {
        LOG.debug("theme from tobago-theme.xml files: {} ", theme.getName());
        map.put(theme.getName(), theme);
      }
      for (ThemeImpl theme : availableThemes) {
        String fallbackName = theme.getFallbackName();
        ThemeImpl fallback = map.get(fallbackName);
        theme.setFallback(fallback);
      }
      for (ThemeImpl theme : availableThemes) {
        theme.resolveFallbacks();
      }
      for (ThemeImpl theme : availableThemes) {
        theme.resolveRendererConfig(tobagoConfig.getRenderersConfig());
      }
      Map<String, Theme> result = new HashMap<String, Theme>();
      for (ThemeImpl theme : availableThemes) {
        result.put(theme.getName(), theme);
      }
      for (ThemeImpl theme : availableThemes) {
        if (theme.getDeprecatedName() != null) {
          result.put(theme.getDeprecatedName(), theme);
        }
      }
      for (ThemeImpl theme : availableThemes) {
        theme.resolveResources();
      }
      for (ThemeImpl theme : availableThemes) {
        theme.init();
      }
      tobagoConfig.setAvailableThemes(Collections.unmodifiableMap(result));
    }
  
    public void addTheme(ThemeImpl theme) {
      availableThemes.add(theme);
    }
  }