/*******************************************************************************
 * 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;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Drawing;
using System.Xml;
using OfficeOpenXml.ConditionalFormatting.Contracts;

namespace OfficeOpenXml.ConditionalFormatting
{
    public class ExcelConditionalFormattingThreeIconSet : ExcelConditionalFormattingIconSetBase<eExcelconditionalFormatting3IconsSetType>
    {
        internal ExcelConditionalFormattingThreeIconSet(
        ExcelAddress address,
        int priority,
        ExcelWorksheet worksheet,
        XmlNode itemElementNode,
        XmlNamespaceManager namespaceManager)
            : base(
              eExcelConditionalFormattingRuleType.ThreeIconSet,
              address,
              priority,
              worksheet,
              itemElementNode,
              (namespaceManager == null) ? worksheet.NameSpaceManager : namespaceManager)
        {
        }
    }
    /// <summary>
    /// ExcelConditionalFormattingThreeIconSet
    /// </summary>
    public class ExcelConditionalFormattingIconSetBase<T>
      : ExcelConditionalFormattingRule,
        IExcelConditionalFormattingThreeIconSet<T>
    {
        /****************************************************************************************/

        #region Private Properties

        #endregion Private Properties

        /****************************************************************************************/

        #region Constructors
        /// <summary>
        /// 
        /// </summary>
        /// <param name="type"></param>
        /// <param name="address"></param>
        /// <param name="priority"></param>
        /// <param name="worksheet"></param>
        /// <param name="itemElementNode"></param>
        /// <param name="namespaceManager"></param>
        internal ExcelConditionalFormattingIconSetBase(
          eExcelConditionalFormattingRuleType type,
          ExcelAddress address,
          int priority,
          ExcelWorksheet worksheet,
          XmlNode itemElementNode,
          XmlNamespaceManager namespaceManager)
            : base(
              type,
              address,
              priority,
              worksheet,
              itemElementNode,
              (namespaceManager == null) ? worksheet.NameSpaceManager : namespaceManager)
        {
            if (itemElementNode != null && itemElementNode.HasChildNodes)
            {
                int pos = 1;
                foreach (XmlNode node in itemElementNode.SelectNodes("d:iconSet/d:cfvo", NameSpaceManager))
                {
                    if(pos==1)
                    {
                        Icon1 = new ExcelConditionalFormattingIconDataBarValue(
                                type,
                                address,
                                worksheet,
                                node,
                                namespaceManager);
                    }
                    else if (pos == 2)
                    {
                        Icon2 = new ExcelConditionalFormattingIconDataBarValue(
                                type,
                                address,
                                worksheet,
                                node,
                                namespaceManager);
                    }
                    else if (pos == 3)
                    {
                        Icon3 = new ExcelConditionalFormattingIconDataBarValue(
                                type,
                                address,
                                worksheet,
                                node,
                                namespaceManager);
                    }
                    else
                    {
                        break;
                    }
                    pos++;
                }
            }
            else
            {
                var iconSetNode = CreateComplexNode(
                  Node,
                  ExcelConditionalFormattingConstants.Paths.IconSet);

                //Create the <iconSet> node inside the <cfRule> node
                double spann;
                if (type == eExcelConditionalFormattingRuleType.ThreeIconSet)
                {
                    spann = 3;
                }
                else if (type == eExcelConditionalFormattingRuleType.FourIconSet)
                {
                    spann = 4;
                }
                else
                {
                    spann = 5;
                }

                var iconNode1 = iconSetNode.OwnerDocument.CreateElement(ExcelConditionalFormattingConstants.Paths.Cfvo, ExcelPackage.schemaMain);
                iconSetNode.AppendChild(iconNode1);
                Icon1 = new ExcelConditionalFormattingIconDataBarValue(eExcelConditionalFormattingValueObjectType.Percent,
                        0,
                        "",
                        eExcelConditionalFormattingRuleType.ThreeIconSet,
                        address,
                        priority,
                        worksheet,
                        iconNode1,
                        namespaceManager);

                var iconNode2 = iconSetNode.OwnerDocument.CreateElement(ExcelConditionalFormattingConstants.Paths.Cfvo, ExcelPackage.schemaMain);
                iconSetNode.AppendChild(iconNode2);
                Icon2 = new ExcelConditionalFormattingIconDataBarValue(eExcelConditionalFormattingValueObjectType.Percent,
                        Math.Round(100D / spann, 0),
                        "",
                        eExcelConditionalFormattingRuleType.ThreeIconSet,
                        address,
                        priority,
                        worksheet,
                        iconNode2,
                        namespaceManager);

                var iconNode3 = iconSetNode.OwnerDocument.CreateElement(ExcelConditionalFormattingConstants.Paths.Cfvo, ExcelPackage.schemaMain);
                iconSetNode.AppendChild(iconNode3);
                Icon3 = new ExcelConditionalFormattingIconDataBarValue(eExcelConditionalFormattingValueObjectType.Percent,
                        Math.Round(100D * (2D / spann), 0),
                        "",
                        eExcelConditionalFormattingRuleType.ThreeIconSet,
                        address,
                        priority,
                        worksheet,
                        iconNode3,
                        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 ExcelConditionalFormattingIconSetBase(
          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 ExcelConditionalFormattingIconSetBase(
          eExcelConditionalFormattingRuleType type,
          ExcelAddress address,
          int priority,
          ExcelWorksheet worksheet)
            : this(
              type,
              address,
              priority,
              worksheet,
              null,
              null)
        {
        }
        #endregion Constructors

        /// <summary>
        /// Settings for icon 1 in the iconset
        /// </summary>
        public ExcelConditionalFormattingIconDataBarValue Icon1
        {
            get;
            internal set;
        }

        /// <summary>
        /// Settings for icon 2 in the iconset
        /// </summary>
        public ExcelConditionalFormattingIconDataBarValue Icon2
        {
            get;
            internal set;
        }
        /// <summary>
        /// Settings for icon 2 in the iconset
        /// </summary>
        public ExcelConditionalFormattingIconDataBarValue Icon3
        {
            get;
            internal set;
        }
        private const string _reversePath = "d:iconSet/@reverse";
        /// <summary>
        /// Reverse the order of the icons
        /// </summary>
        public bool Reverse
        {
            get
            {
                return GetXmlNodeBool(_reversePath, false);
            }
            set
            {
                SetXmlNodeBool(_reversePath, value);
            }
        }

        private const string _showValuePath = "d:iconSet/@showValue";
        /// <summary>
        /// If the cell values are visible
        /// </summary>
        public bool ShowValue
        {
            get
            {
                return GetXmlNodeBool(_showValuePath, true);
            }
            set
            {
                SetXmlNodeBool(_showValuePath, value);
            }
        }
        private const string _iconSetPath = "d:iconSet/@iconSet";
        /// <summary>
        /// Type of iconset
        /// </summary>
        public T IconSet
        {
            get
            {
                var v = GetXmlNodeString(_iconSetPath);
                v = v.Substring(1); //Skip first icon.
                return (T)Enum.Parse(typeof(T), v, true);
            }
            set
            {
                SetXmlNodeString(_iconSetPath, GetIconSetString(value));
            }
        }
        private string GetIconSetString(T value)
        {
            if (Type == eExcelConditionalFormattingRuleType.FourIconSet)
            {
                switch (value.ToString())
                {
                    case "Arrows":
                        return "4Arrows";
                    case "ArrowsGray":
                        return "4ArrowsGray";
                    case "Rating":
                        return "4Rating";
                    case "RedToBlack":
                        return "4RedToBlack";
                    case "TrafficLights":
                        return "4TrafficLights";
                    default:
                        throw (new ArgumentException("Invalid type"));
                }
            }
            else if (Type == eExcelConditionalFormattingRuleType.FiveIconSet)
            {
                switch (value.ToString())
                {
                    case "Arrows":
                        return "5Arrows";
                    case "ArrowsGray":
                        return "5ArrowsGray";
                    case "Quarters":
                        return "5Quarters";
                    case "Rating":
                        return "5Rating";
                    default:
                        throw (new ArgumentException("Invalid type"));
                }
            }
            else
            {
                switch (value.ToString())
                {
                    case "Arrows":
                        return "3Arrows";
                    case "ArrowsGray":
                        return "3ArrowsGray";
                    case "Flags":
                        return "3Flags";
                    case "Signs":
                        return "3Signs";
                    case "Symbols":
                        return "3Symbols";
                    case "Symbols2":
                        return "3Symbols2";
                    case "TrafficLights1":
                        return "3TrafficLights1";
                    case "TrafficLights2":
                        return "3TrafficLights2";
                    default:
                        throw (new ArgumentException("Invalid type"));
                }
            }
        }
    }
}