using DTS.Common.Import.Interfaces;
using DTS.Common.SharedResource.Strings;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Xml;

namespace DTS.Common.Import.XML
{
    public class XMLParseGroupTemplates : XMLParseBase
    {
        private ISO.ISO13499FileDb _iSO13499FileDb;
        public XMLParseGroupTemplates(XmlElement root, double importedVersion, ISO.ISO13499FileDb iSO13499FileDb,
           Func<bool> isCancelled = null) : base(root, importedVersion, isCancelled)
        {
            _iSO13499FileDb = iSO13499FileDb;
        }
        public override void Parse(ref ImportObject importObject)
        {
            var groupTemplates = ParseGroupTemplates(ref importObject, _root);
            importObject.AddGroupTemplates(groupTemplates);
        }
        public IEnumerable<DataPROWin7.DataModel.TestObjectTemplate> ParseGroupTemplates(ref ImportObject importObject, XmlElement root)
        {
            List<DataPROWin7.DataModel.TestObjectTemplate> groupTemplates = new List<DataPROWin7.DataModel.TestObjectTemplate>();

            var importChannels = new Dictionary<long, ISO.MMEPossibleChannels>();
            foreach (var channel in importObject.CustomChannels())
            {
                if (IsCancelled())
                {
                    return groupTemplates;
                }
                importChannels[channel.Id] = channel;
            }

            foreach (var node in root.ChildNodes)
            {
                if (IsCancelled())
                {
                    return groupTemplates;
                }
                if (!(node is XmlElement)) continue;
                var template = DataPROWin7.DataModel.TestObjectTemplate.ReadXML(node as XmlElement, importChannels);
                template.Embedded = template.SysBuilt || template.Embedded; // If this is an old Dynamic Group or a new Added Group, by definition it's embedded.
                if (template.SysBuilt)
                {
                    template.OriginalTemplateName = template.TemplateName;
                }
                groupTemplates.Add(new DataPROWin7.DataModel.TestObjectTemplate(template, ref _iSO13499FileDb, importObject.TestObjects()?.ToList()));
                if (null == groupTemplates.Last().TestObject)
                {
                    //FB8790 - TestSetup with a custom ISO testobject that is not available in the export file has an ambiguous error message.
                    throw new NotSupportedException(string.Format(StringResources.ImportTestSetup_ISOTestObjectNotFoundInImportFile, template.TemplateNameOrOriginalTemplateName, template.TestObject));
                }
            }
            return groupTemplates;
        }
    }
}