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/*
 * Copyright 2015 Objectos, Fábrica de Software LTDA.
 *
 * 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
 *
 * 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 br.com.objectos.way.sql;

import br.com.objectos.way.core.tmpl.mustache.IsMustacheSerializable;
import br.com.objectos.way.core.tmpl.mustache.MustacheObject;

/**
 * @author [email protected] (Marcio Endo)
 */
public class IndexedColumnInfo implements IsMustacheSerializable {

  private final ColumnInfo columnInfo;
  private final int index;
  private final int size;

  private IndexedColumnInfo(ColumnInfo columnInfo, int index, int size) {
    this.columnInfo = columnInfo;
    this.index = index;
    this.size = size;
  }

  public static IndexedColumnInfo get(ColumnInfo columnInfo, int index, int size) {
    return new IndexedColumnInfo(columnInfo, index, size);
  }

  @Override
  public MustacheObject toMustache() {
    boolean first = index == 0;
    boolean last = index + 1 == size;
    boolean middle = !first && !last;
    return columnInfo.toMustacheHelper()
        .add("first", first)
        .add("last", last)
        .add("middle", middle)
        .toMustache();
  }

}