/*******************************************************************************
 * 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 OfficeOpenXml.FormulaParsing.Utilities;

namespace OfficeOpenXml.FormulaParsing.ExcelUtilities;

public class RangeAddressFactory {
  private readonly ExcelDataProvider _excelDataProvider;
  private readonly AddressTranslator _addressTranslator;
  private readonly IndexToAddressTranslator _indexToAddressTranslator;

  public RangeAddressFactory(ExcelDataProvider excelDataProvider)
      : this(
          excelDataProvider,
          new(excelDataProvider),
          new(excelDataProvider, ExcelReferenceType.RelativeRowAndColumn)) {}

  public RangeAddressFactory(
      ExcelDataProvider excelDataProvider,
      AddressTranslator addressTranslator,
      IndexToAddressTranslator indexToAddressTranslator) {
    Require.That(excelDataProvider).Named("excelDataProvider").IsNotNull();
    Require.That(addressTranslator).Named("addressTranslator").IsNotNull();
    Require.That(indexToAddressTranslator).Named("indexToAddressTranslator").IsNotNull();
    _excelDataProvider = excelDataProvider;
    _addressTranslator = addressTranslator;
    _indexToAddressTranslator = indexToAddressTranslator;
  }

  public RangeAddress Create(int col, int row) {
    return Create(string.Empty, col, row);
  }

  public RangeAddress Create(string worksheetName, int col, int row) {
    return new() {
      Address = _indexToAddressTranslator.ToAddress(col, row),
      Worksheet = worksheetName,
      FromCol = col,
      ToCol = col,
      FromRow = row,
      ToRow = row,
    };
  }

  /// <summary>
  ///
  /// </summary>
  /// <param name="worksheetName">will be used if no worksheet name is specified in <paramref name="address"/></param>
  /// <param name="address">address of a range</param>
  /// <returns></returns>
  public RangeAddress Create(string worksheetName, string address) {
    Require.That(address).Named("range").IsNotNullOrEmpty();
    //var addressInfo = ExcelAddressInfo.Parse(address);
    var adr = new ExcelAddressBase(address);
    var sheet = string.IsNullOrEmpty(adr.WorkSheet) ? worksheetName : adr.WorkSheet;
    var dim = _excelDataProvider.GetDimensionEnd(adr.WorkSheet);
    var rangeAddress = new RangeAddress {
      Address = adr.Address,
      Worksheet = sheet,
      FromRow = adr._fromRow,
      FromCol = adr._fromCol,
      ToRow = (dim != null && adr._toRow > dim.Row) ? dim.Row : adr._toRow,
      ToCol = adr._toCol,
    };

    //if (addressInfo.IsMultipleCells)
    //{
    //    HandleMultipleCellAddress(rangeAddress, addressInfo);
    //}
    //else
    //{
    //    HandleSingleCellAddress(rangeAddress, addressInfo);
    //}
    return rangeAddress;
  }

  public RangeAddress Create(string range) {
    Require.That(range).Named("range").IsNotNullOrEmpty();
    //var addressInfo = ExcelAddressInfo.Parse(range);
    var adr = new ExcelAddressBase(range);
    var rangeAddress = new RangeAddress {
      Address = adr.Address,
      Worksheet = adr.WorkSheet ?? "",
      FromRow = adr._fromRow,
      FromCol = adr._fromCol,
      ToRow = adr._toRow,
      ToCol = adr._toCol,
    };

    //if (addressInfo.IsMultipleCells)
    //{
    //    HandleMultipleCellAddress(rangeAddress, addressInfo);
    //}
    //else
    //{
    //    HandleSingleCellAddress(rangeAddress, addressInfo);
    //}
    return rangeAddress;
  }

  private void HandleSingleCellAddress(RangeAddress rangeAddress, ExcelAddressInfo addressInfo) {
    int col,
        row;
    _addressTranslator.ToColAndRow(addressInfo.StartCell, out col, out row);
    rangeAddress.FromCol = col;
    rangeAddress.ToCol = col;
    rangeAddress.FromRow = row;
    rangeAddress.ToRow = row;
  }

  private void HandleMultipleCellAddress(RangeAddress rangeAddress, ExcelAddressInfo addressInfo) {
    int fromCol,
        fromRow;
    _addressTranslator.ToColAndRow(addressInfo.StartCell, out fromCol, out fromRow);
    int toCol,
        toRow;
    _addressTranslator.ToColAndRow(
        addressInfo.EndCell,
        out toCol,
        out toRow,
        AddressTranslator.RangeCalculationBehaviour.LastPart);
    rangeAddress.FromCol = fromCol;
    rangeAddress.ToCol = toCol;
    rangeAddress.FromRow = fromRow;
    rangeAddress.ToRow = toRow;
  }
}