using DataPROWin7.DataModel;
using DTS.Common.Enums.DBExport;
using DTS.Common.Events;
using DTS.Common.Import.Interfaces;
using DTS.Common.Interface.Groups.GroupList;
using DTS.Common.ISO;
using DTS.Common.SharedResource.Strings;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Security.Policy;
using System.Text;
using System.Threading.Tasks;
using System.Xml;

namespace DTS.Common.Import.XML
{
    public class XMLParseDASList : XMLParseBase
    {
        public XMLParseDASList(XmlElement root, double importedVersion, Func<bool> isCancelled = null) : base(root, importedVersion, isCancelled)
        {
            _dasIdMapping.Clear();
        }
        public IImportNotification ImportNotification { get; set; }
        public List<DASHardware> ParseDASList(XmlElement root)
        {
            List<DASHardware> dasList = new List<DASHardware>();
            var invalidDAS = new List<string>();
            foreach (var node in root.ChildNodes)
            {
                if (IsCancelled()) { return dasList; }
                if (node is XmlElement)
                {
                    var isoHardware = DASHardware.ReadXML(node as XmlElement);
                    if (Enum.IsDefined(typeof(DTS.Common.Enums.Hardware.HardwareTypes), isoHardware.DASType))
                    {
                        dasList.Add(new DASHardware(isoHardware));
                    }
                    else
                    {
                        invalidDAS.Add(isoHardware.SerialNumber);
                    }
                }
            }
            if (invalidDAS.Any())
            {
                //???
            }
            return dasList;
        }

        private XmlElement ConvertDASList(List<DASHardware> dasList)
        {
            _writer.WriteStartElement(TopLevelFields.DASList.ToString());
            var count = -2; //Start the normalization at -2, since channels have a DASId of -1 if unassigned (FB 13544)
            foreach (var h in dasList)
            {
                _dasIdMapping[h.DASId] = count;
                h.SetDASId(count);
                count--;

                _writer.Flush();
                h.WriteXML(ref _writer);
                _writer.Flush();
            }
            _writer.WriteEndElement();

            return GetXmlElement();
        }


        public override void Parse(ref ImportObject importObject)
        {
            ImportNotification?.SetStatus(new ImportStatus { PossibleStatus = Enums.PossibleStatus.Reading, ExtraStatus = Enums.ImportExtraStatus.ReadingHardware });
            var dasList = ParseDASList(_root);
            var newRoot = ConvertDASList(dasList);
            importObject.AddHardwareList(ParseDASList(newRoot));
        }

    }
}