/*
    * Copyright (c) 2011-2024 PrimeFaces Extensions
    *
    *  Permission is hereby granted, free of charge, to any person obtaining a copy
    *  of this software and associated documentation files (the "Software"), to deal
    *  in the Software without restriction, including without limitation the rights
    *  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    *  copies of the Software, and to permit persons to whom the Software is
    *  furnished to do so, subject to the following conditions:
   *
   *  The above copyright notice and this permission notice shall be included in
   *  all copies or substantial portions of the Software.
   *
   *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   *  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   *  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
   *  THE SOFTWARE.
   */
  package org.primefaces.extensions.component.gchart.model;
  
  import java.util.ArrayList;
  import java.util.Collection;
  import java.util.List;
  import java.util.Map;
  
  import org.primefaces.extensions.util.json.GsonConverter;
  
  class DefaultGChartModel implements GChartModel {
  
      private static final long serialVersionUID = -4757917806522708660L;
  
      private final List<GChartModelRow> rows;
      private final GChartType gChartType;
      private final transient Map<String, Object> options;
      private final transient List<Object> columns;
  
      public DefaultGChartModel(final List<GChartModelRow> rows, final GChartType gChartType,
                  final Map<String, Object> options, final List<Object> columns) {
          super();
          this.rows = rows;
          this.gChartType = gChartType;
          this.options = options;
          this.columns = columns;
      }
  
      @Override
      public Map<String, Object> getOptions() {
          return options;
      }
  
      @Override
      public Collection<Object> getColumns() {
          return columns;
      }
  
      @Override
      public GChartType getChartType() {
          return gChartType;
      }
  
      @Override
      public Collection<GChartModelRow> getRows() {
          return rows;
      }
  
      @Override
      public String toJson() {
          final com.google.gson.JsonObject root = new com.google.gson.JsonObject();
  
          root.addProperty("type", getChartType().getChartName());
          root.add("options", GsonConverter.getGson().toJsonTree(getOptions()));
          root.add("data", extractData());
  
          return GsonConverter.getGson().toJson(root);
      }
  
      protected com.google.gson.JsonElement extractData() {
          final Collection<Collection<Object>> dataTable = new ArrayList<>(0);
  
          dataTable.add(getColumns());
  
          for (final GChartModelRow row : getRows()) {
              final Collection<Object> dataRow = new ArrayList<>(0);
              dataRow.add(row.getLabel());
              dataRow.addAll(row.getValues());
  
              dataTable.add(dataRow);
          }
  
          return GsonConverter.getGson().toJsonTree(dataTable);
      }
  
  }