// Copyright (C) Stichting Deltares 2019. All rights reserved.
//
// This file is part of the Dam Engine.
//
// The Dam Engine is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// 
// This program 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 Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
// All names, logos, and references to "Deltares" are registered trademarks of
// Stichting Deltares and remain full property of Stichting Deltares at all times.
// All rights reserved.

using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Xml.Linq;
using Deltares.DamEngine.Data.Geotechnics;

namespace Deltares.DamEngine.Calculators.KernelWrappers.Assemblers
{
    /// <summary>
    /// 
    /// </summary>
    public class SoilProfileAssembler<T, S> : DtoAssembler<SoilProfile1D>
    {
        #region Constant declarations

        /// <summary>
        /// Holds the common part of the path to the embedded resource
        /// </summary>
        private const string embeddedResourcePath = "Deltares.DamEngine.Calculators.KernelWrappers.DamMacroStabilityCommon.Xsd";

        /// <summary>
        /// Holds the xml element name
        /// </summary>
        private const string xmlElementName = "Profile";

        /// <summary>
        /// Holds the xml namespace
        /// </summary>
        private const string xmlElementNamespace = "http://deltares.nl/2008/" + xmlShemaName;

        /// <summary>
        /// The XML layer collection element name
        /// </summary>
        public const string XmlLayerCollectionElementName = "Layers";

        /// <summary>
        /// Holds the name of the xml schema
        /// </summary>
        private const string xmlShemaName = "ProfileDefinition";

        /// <summary>
        /// Holds the xsd resource path 
        /// </summary>
        private const string xsdEmbeddedResourcePath = embeddedResourcePath + "." + xmlShemaName + ".xsd";

        #endregion


        /// <summary>
        /// Initializes a new instance of the <see cref="SoilProfileAssembler{T, S}"/> class.
        /// </summary>
        public SoilProfileAssembler()
            : base(
                xmlElementName, xmlElementNamespace,
                Assembly.GetExecutingAssembly().GetEmbeddedFile(xsdEmbeddedResourcePath))
        {
            
        }

        /// <summary>
        /// override for CreateDomainObject
        /// </summary>
        /// <param name="dtoObj"></param>
        /// <returns></returns>
        public override SoilProfile1D CreateDomainObject(XElement dtoObj)
        {
            SoilProfile1D soilProfile = base.CreateDomainObject(dtoObj);

            // Layers
            var soilLayerAssembler = new SoilLayerAssembler();

            XElement layerCollectionElement = (from element in dtoObj.Descendants()
                                               where element.Name.LocalName == XmlLayerCollectionElementName
                                               select element).Single();

            IEnumerable<XElement> layerElementCollection = from element in layerCollectionElement.Descendants()
                                                           where element.Name.LocalName == soilLayerAssembler.ElementName
                                                           select element;

            var soilDictionary = new Dictionary<string, Soil>();

            foreach (XElement layerElement in layerElementCollection)
            {
                SoilLayer1D soilLayer = soilLayerAssembler.CreateDomainObject(layerElement);

                // Add soils
                // NOTE: this solution is temporary. In future there will probably a collection of soils to pick from (see XML)
                if (layerElement != null)
                {
                    var xAttribute = layerElement.Attribute("SoilID");
                    if (xAttribute != null)
                    {
                        string soilName = xAttribute.Value;
                        Soil soil;
                        if (soilDictionary.ContainsKey(soilName))
                        {
                            soil = soilDictionary[soilName];
                        }
                        else
                        {
                            //soil = new S();
                            soil = new Soil
                            {
                                Name = soilName
                            };
                            soilDictionary.Add(soilName, soil);
                        }
                        soilLayer.Soil = soil;
                    }
                }
                soilProfile.Layers.Add(soilLayer);
            }

            return soilProfile;
        }

        /// <summary>
        /// Creates the data transfer object.
        /// </summary>
        /// <param name="soilProfile">The soil profile.</param>
        /// <returns></returns>
        public override XElement CreateDataTransferObject(SoilProfile1D soilProfile)
        {
            XElement el = base.CreateDataTransferObject(soilProfile);

            // Layers
            var soilLayerAssembler = new SoilLayerAssembler();

            var layerCollectionElement = new XElement(XmlLayerCollectionElementName);
            el.Add(layerCollectionElement);

            foreach (SoilLayer1D soilLayer in soilProfile.Layers)
            {
                XElement layerElement = soilLayerAssembler.CreateDataTransferObject(soilLayer);
                layerCollectionElement.Add(layerElement);
            }
            return el;
        }
    }
}