﻿/*******************************************************************************
 * You may amend and distribute as you like, but don't remove this header!
 *
 * EPPlus provides server-side generation of Excel 2007/2010 spreadsheets.
 * See http://www.codeplex.com/EPPlus for details.
 *
 * Copyright (C) 2011  Jan Källman
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.

 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU Lesser General Public License for more details.
 *
 * The GNU Lesser General Public License can be viewed at http://www.opensource.org/licenses/lgpl-license.php
 * If you unfamiliar with this license or have questions about it, here is an http://www.gnu.org/licenses/gpl-faq.html
 *
 * All code and executables are provided "as is" with no warranty either express or implied.
 * The author accepts no liability for any damage or loss of business that this product may cause.
 *
 * Code change notes:
 *
 * Author							Change						Date
 * ******************************************************************************
 * Mats Alm   		                Added       		        2013-03-01 (Prior file history on https://github.com/swmal/ExcelFormulaParser)
 *******************************************************************************/

using System.Collections.Generic;

namespace AppsheetEpplus;

public class FormulaDependencies {
  public FormulaDependencies()
      : this(new()) {}

  public FormulaDependencies(FormulaDependencyFactory formulaDependencyFactory) {
    _formulaDependencyFactory = formulaDependencyFactory;
  }

  private readonly FormulaDependencyFactory _formulaDependencyFactory;
  private readonly Dictionary<string, FormulaDependency> _dependencies = new();

  public IEnumerable<KeyValuePair<string, FormulaDependency>> Dependencies => _dependencies;

  public void AddFormulaScope(ParsingScope parsingScope) {
    //var dependency = _formulaDependencyFactory.Create(parsingScope);
    //var address = parsingScope.Address.ToString();
    //if (!_dependencies.ContainsKey(address))
    //{
    //    _dependencies.Add(address, dependency);
    //}
    //if (parsingScope.Parent != null)
    //{
    //    var parentAddress = parsingScope.Parent.Address.ToString();
    //    if (_dependencies.ContainsKey(parentAddress))
    //    {
    //        var parent = _dependencies[parentAddress];
    //        parent.AddReferenceTo(parsingScope.Address);
    //        dependency.AddReferenceFrom(parent.Address);
    //    }
    //}
  }

  public void Clear() {
    _dependencies.Clear();
  }
}