/*******************************************************************************
 * 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
 * ******************************************************************************
 * Eyal Seagull        Added       		  2012-04-03
 *******************************************************************************/

using System.Drawing;
using System.Globalization;
using System.Xml;
using OfficeOpenXml.ConditionalFormatting.Contracts;

namespace OfficeOpenXml.ConditionalFormatting;

/// <summary>
/// Databar
/// </summary>
public class ExcelConditionalFormattingDataBar
    : ExcelConditionalFormattingRule,
      IExcelConditionalFormattingDataBarGroup {
  /// <summary>
  ///
  /// </summary>
  /// <param name="type"></param>
  /// <param name="priority"></param>
  /// <param name="address"></param>
  /// <param name="worksheet"></param>
  /// <param name="itemElementNode"></param>
  /// <param name="namespaceManager"></param>
  internal ExcelConditionalFormattingDataBar(
      eExcelConditionalFormattingRuleType type,
      ExcelAddress address,
      int priority,
      ExcelWorksheet worksheet,
      XmlNode itemElementNode,
      XmlNamespaceManager namespaceManager)
      : base(
          type,
          address,
          priority,
          worksheet,
          itemElementNode,
          namespaceManager ?? worksheet.NameSpaceManager) {
    SchemaNodeOrder = new[] { "cfvo", "color" };
    //Create the <dataBar> node inside the <cfRule> node
    if (itemElementNode != null && itemElementNode.HasChildNodes) {
      bool high = false;
      foreach (XmlNode node in itemElementNode.SelectNodes("d:dataBar/d:cfvo", NameSpaceManager)) {
        if (high == false) {
          LowValue = new(type, address, worksheet, node, namespaceManager);
          high = true;
        } else {
          HighValue = new(type, address, worksheet, node, namespaceManager);
        }
      }
    } else {
      var iconSetNode = CreateComplexNode(Node, ExcelConditionalFormattingConstants.Paths._dataBar);

      var lowNode = iconSetNode.OwnerDocument.CreateElement(
          ExcelConditionalFormattingConstants.Paths._cfvo,
          ExcelPackage._schemaMain);
      iconSetNode.AppendChild(lowNode);
      LowValue = new(
          eExcelConditionalFormattingValueObjectType.Min,
          0,
          "",
          eExcelConditionalFormattingRuleType.DataBar,
          address,
          priority,
          worksheet,
          lowNode,
          namespaceManager);

      var highNode = iconSetNode.OwnerDocument.CreateElement(
          ExcelConditionalFormattingConstants.Paths._cfvo,
          ExcelPackage._schemaMain);
      iconSetNode.AppendChild(highNode);
      HighValue = new(
          eExcelConditionalFormattingValueObjectType.Max,
          0,
          "",
          eExcelConditionalFormattingRuleType.DataBar,
          address,
          priority,
          worksheet,
          highNode,
          namespaceManager);
    }
    Type = type;
  }

  /// <summary>
  ///
  /// </summary>
  /// <param name="type"></param>
  /// <param name="priority"></param>
  /// <param name="address"></param>
  /// <param name="worksheet"></param>
  /// <param name="itemElementNode"></param>
  internal ExcelConditionalFormattingDataBar(
      eExcelConditionalFormattingRuleType type,
      ExcelAddress address,
      int priority,
      ExcelWorksheet worksheet,
      XmlNode itemElementNode)
      : this(type, address, priority, worksheet, itemElementNode, null) {}

  /// <summary>
  ///
  /// </summary>
  /// <param name="type"></param>
  /// <param name="priority"></param>
  /// <param name="address"></param>
  /// <param name="worksheet"></param>
  internal ExcelConditionalFormattingDataBar(
      eExcelConditionalFormattingRuleType type,
      ExcelAddress address,
      int priority,
      ExcelWorksheet worksheet)
      : this(type, address, priority, worksheet, null, null) {}

  private const string _showValuePath = "d:dataBar/@showValue";

  public bool ShowValue {
    get => GetXmlNodeBool(_showValuePath, true);
    set => SetXmlNodeBool(_showValuePath, value);
  }

  public ExcelConditionalFormattingIconDataBarValue LowValue { get; internal set; }

  public ExcelConditionalFormattingIconDataBarValue HighValue { get; internal set; }

  private const string _colorPath = "d:dataBar/d:color/@rgb";

  public Color Color {
    get {
      var rgb = GetXmlNodeString(_colorPath);
      if (!string.IsNullOrEmpty(rgb)) {
        return Color.FromArgb(int.Parse(rgb, NumberStyles.HexNumber));
      }
      return Color.White;
    }
    set => SetXmlNodeString(_colorPath, value.ToArgb().ToString("X"));
  }
}