using System.Collections.Generic;
using System.Linq;
using SabreTools.Core;
using SabreTools.Core.Tools;

namespace SabreTools.DatFiles
{
    // TODO: Convert nested items (e.g. Configuration, DipLocation)
    public partial class DatFile
    {
        #region Converters

        /// <summary>
        /// Convert metadata information
        /// </summary>
        /// <param name="item">Metadata file to convert</param>
        /// <param name="filename">Name of the file to be parsed</param>
        /// <param name="indexId">Index ID for the DAT</param>
        /// <param name="keep">True if full pathnames are to be kept, false otherwise</param>
        /// <param name="statsOnly">True to only add item statistics while parsing, false otherwise</param>
        public void ConvertMetadata(Models.Metadata.MetadataFile? item, string filename, int indexId, bool keep, bool statsOnly)
        {
            // If the metadata file is invalid, we can't do anything
            if (item == null || !item.Any())
                return;

            // Get the header from the metadata
            var header = item.Read<Models.Metadata.Header>(Models.Metadata.MetadataFile.HeaderKey);
            if (header != null)
                ConvertHeader(header, keep);

            // Get the machines from the metadata
            var machines = ReadItemArray<Models.Metadata.Machine>(item, Models.Metadata.MetadataFile.MachineKey);
            if (machines != null)
                ConvertMachines(machines, filename, indexId, statsOnly);
        }

        /// <summary>
        /// Convert header information
        /// </summary>
        /// <param name="item">Header to convert</param>
        /// <param name="keep">True if full pathnames are to be kept, false otherwise</param>
        private void ConvertHeader(Models.Metadata.Header? item, bool keep)
        {
            // If the header is invalid, we can't do anything
            if (item == null || !item.Any())
                return;

            // Create an internal header
            var header = new DatFiles.DatHeader(item);

            // Convert subheader values
            if (item.ContainsKey(Models.Metadata.Header.CanOpenKey))
            {
                var canOpen = item.Read<Models.OfflineList.CanOpen>(Models.Metadata.Header.CanOpenKey);
                if (canOpen?.Extension != null)
                    Header.SetFieldValue<string[]?>(Models.Metadata.Header.CanOpenKey, canOpen.Extension);
            }
            if (item.ContainsKey(Models.Metadata.Header.ImagesKey))
            {
                // TODO: Add to internal model
            }
            if (item.ContainsKey(Models.Metadata.Header.InfosKey))
            {
                var infos = item.Read<Models.OfflineList.Infos>(Models.Metadata.Header.InfosKey);
                if (infos != null)
                {
                    var offlineListInfos = new List<Formats.OfflineListInfo>();

                    if (infos.Title != null)
                    {
                        offlineListInfos.Add(new Formats.OfflineListInfo
                        {
                            Name = "title",
                            Visible = infos.Title.Visible.AsYesNo(),
                            InNamingOption = infos.Title.InNamingOption.AsYesNo(),
                            Default = infos.Title.Default.AsYesNo(),
                        });
                    }
                    if (infos.Location != null)
                    {
                        offlineListInfos.Add(new Formats.OfflineListInfo
                        {
                            Name = "location",
                            Visible = infos.Location.Visible.AsYesNo(),
                            InNamingOption = infos.Location.InNamingOption.AsYesNo(),
                            Default = infos.Location.Default.AsYesNo(),
                        });
                    }
                    if (infos.Publisher != null)
                    {
                        offlineListInfos.Add(new Formats.OfflineListInfo
                        {
                            Name = "publisher",
                            Visible = infos.Publisher.Visible.AsYesNo(),
                            InNamingOption = infos.Publisher.InNamingOption.AsYesNo(),
                            Default = infos.Publisher.Default.AsYesNo(),
                        });
                    }
                    if (infos.SourceRom != null)
                    {
                        offlineListInfos.Add(new Formats.OfflineListInfo
                        {
                            Name = "sourceRom",
                            Visible = infos.SourceRom.Visible.AsYesNo(),
                            InNamingOption = infos.SourceRom.InNamingOption.AsYesNo(),
                            Default = infos.SourceRom.Default.AsYesNo(),
                        });
                    }
                    if (infos.SaveType != null)
                    {
                        offlineListInfos.Add(new Formats.OfflineListInfo
                        {
                            Name = "saveType",
                            Visible = infos.SaveType.Visible.AsYesNo(),
                            InNamingOption = infos.SaveType.InNamingOption.AsYesNo(),
                            Default = infos.SaveType.Default.AsYesNo(),
                        });
                    }
                    if (infos.RomSize != null)
                    {
                        offlineListInfos.Add(new Formats.OfflineListInfo
                        {
                            Name = "romSize",
                            Visible = infos.RomSize.Visible.AsYesNo(),
                            InNamingOption = infos.RomSize.InNamingOption.AsYesNo(),
                            Default = infos.RomSize.Default.AsYesNo(),
                        });
                    }
                    if (infos.ReleaseNumber != null)
                    {
                        offlineListInfos.Add(new Formats.OfflineListInfo
                        {
                            Name = "releaseNumber",
                            Visible = infos.ReleaseNumber.Visible.AsYesNo(),
                            InNamingOption = infos.ReleaseNumber.InNamingOption.AsYesNo(),
                            Default = infos.ReleaseNumber.Default.AsYesNo(),
                        });
                    }
                    if (infos.LanguageNumber != null)
                    {
                        offlineListInfos.Add(new Formats.OfflineListInfo
                        {
                            Name = "languageNumber",
                            Visible = infos.LanguageNumber.Visible.AsYesNo(),
                            InNamingOption = infos.LanguageNumber.InNamingOption.AsYesNo(),
                            Default = infos.LanguageNumber.Default.AsYesNo(),
                        });
                    }
                    if (infos.Comment != null)
                    {
                        offlineListInfos.Add(new Formats.OfflineListInfo
                        {
                            Name = "comment",
                            Visible = infos.Comment.Visible.AsYesNo(),
                            InNamingOption = infos.Comment.InNamingOption.AsYesNo(),
                            Default = infos.Comment.Default.AsYesNo(),
                        });
                    }
                    if (infos.RomCRC != null)
                    {
                        offlineListInfos.Add(new Formats.OfflineListInfo
                        {
                            Name = "romCRC",
                            Visible = infos.RomCRC.Visible.AsYesNo(),
                            InNamingOption = infos.RomCRC.InNamingOption.AsYesNo(),
                            Default = infos.RomCRC.Default.AsYesNo(),
                        });
                    }
                    if (infos.Im1CRC != null)
                    {
                        offlineListInfos.Add(new Formats.OfflineListInfo
                        {
                            Name = "im1CRC",
                            Visible = infos.Im1CRC.Visible.AsYesNo(),
                            InNamingOption = infos.Im1CRC.InNamingOption.AsYesNo(),
                            Default = infos.Im1CRC.Default.AsYesNo(),
                        });
                    }
                    if (infos.Im2CRC != null)
                    {
                        offlineListInfos.Add(new Formats.OfflineListInfo
                        {
                            Name = "im2CRC",
                            Visible = infos.Im2CRC.Visible.AsYesNo(),
                            InNamingOption = infos.Im2CRC.InNamingOption.AsYesNo(),
                            Default = infos.Im2CRC.Default.AsYesNo(),
                        });
                    }
                    if (infos.Languages != null)
                    {
                        offlineListInfos.Add(new Formats.OfflineListInfo
                        {
                            Name = "languages",
                            Visible = infos.Languages.Visible.AsYesNo(),
                            InNamingOption = infos.Languages.InNamingOption.AsYesNo(),
                            Default = infos.Languages.Default.AsYesNo(),
                        });
                    }

                    Header.SetFieldValue<Formats.OfflineListInfo[]?>(Models.Metadata.Header.InfosKey, [.. offlineListInfos]);
                }
            }
            if (item.ContainsKey(Models.Metadata.Header.NewDatKey))
            {
                var newDat = item.Read<Models.OfflineList.NewDat>(Models.Metadata.Header.NewDatKey);
                if (newDat != null)
                {
                    Header.SetFieldValue<string?>("DATVERSIONURL", newDat.DatVersionUrl);
                    //Header.SetFieldValue<Models.OfflineList.DatUrl?>("DATURL", newDat.DatUrl); // TODO: Add to internal model
                    Header.SetFieldValue<string?>("IMURL", newDat.DatVersionUrl);
                }
            }
            if (item.ContainsKey(Models.Metadata.Header.SearchKey))
            {
                // TODO: Add to internal model
            }

            // Selectively set all possible fields -- TODO: Figure out how to make this less manual
            if (Header.GetFieldValue<string?>(Models.Metadata.Header.AuthorKey) == null)
                Header.SetFieldValue<string?>(Models.Metadata.Header.AuthorKey, header.GetFieldValue<string?>(Models.Metadata.Header.AuthorKey));
            if (Header.GetFieldValue<MergingFlag>(Models.Metadata.Header.BiosModeKey) == MergingFlag.None)
                Header.SetFieldValue<MergingFlag>(Models.Metadata.Header.BiosModeKey, header.GetFieldValue<MergingFlag>(Models.Metadata.Header.BiosModeKey));
            if (Header.GetFieldValue<string?>(Models.Metadata.Header.BuildKey) == null)
                Header.SetFieldValue<string?>(Models.Metadata.Header.BuildKey, header.GetFieldValue<string?>(Models.Metadata.Header.BuildKey));
            if (Header.GetFieldValue<string?>(Models.Metadata.Header.CategoryKey) == null)
                Header.SetFieldValue<string?>(Models.Metadata.Header.CategoryKey, header.GetFieldValue<string?>(Models.Metadata.Header.CategoryKey));
            if (Header.GetFieldValue<string?>(Models.Metadata.Header.CommentKey) == null)
                Header.SetFieldValue<string?>(Models.Metadata.Header.CommentKey, header.GetFieldValue<string?>(Models.Metadata.Header.CommentKey));
            if (Header.GetFieldValue<string?>(Models.Metadata.Header.DateKey) == null)
                Header.SetFieldValue<string?>(Models.Metadata.Header.DateKey, header.GetFieldValue<string?>(Models.Metadata.Header.DateKey));
            if (Header.GetFieldValue<string?>(Models.Metadata.Header.DatVersionKey) == null)
                Header.SetFieldValue<string?>(Models.Metadata.Header.DatVersionKey, header.GetFieldValue<string?>(Models.Metadata.Header.DatVersionKey));
            if (Header.GetFieldValue<bool?>(Models.Metadata.Header.DebugKey) == null)
                Header.SetFieldValue<bool?>(Models.Metadata.Header.DebugKey, header.GetFieldValue<bool?>(Models.Metadata.Header.DebugKey));
            if (Header.GetFieldValue<string?>(Models.Metadata.Header.DescriptionKey) == null)
                Header.SetFieldValue<string?>(Models.Metadata.Header.DescriptionKey, header.GetFieldValue<string?>(Models.Metadata.Header.DescriptionKey));
            if (Header.GetFieldValue<string?>(Models.Metadata.Header.EmailKey) == null)
                Header.SetFieldValue<string?>(Models.Metadata.Header.EmailKey, header.GetFieldValue<string?>(Models.Metadata.Header.EmailKey));
            if (Header.GetFieldValue<string?>(Models.Metadata.Header.EmulatorVersionKey) == null)
                Header.SetFieldValue<string?>(Models.Metadata.Header.EmulatorVersionKey, header.GetFieldValue<string?>(Models.Metadata.Header.EmulatorVersionKey));
            if (Header.GetFieldValue<MergingFlag>(Models.Metadata.Header.ForceMergingKey) == MergingFlag.None)
                Header.SetFieldValue<MergingFlag>(Models.Metadata.Header.ForceMergingKey, header.GetFieldValue<MergingFlag>(Models.Metadata.Header.ForceMergingKey));
            if (Header.GetFieldValue<NodumpFlag>(Models.Metadata.Header.ForceNodumpKey) == NodumpFlag.None)
                Header.SetFieldValue<NodumpFlag>(Models.Metadata.Header.ForceNodumpKey, header.GetFieldValue<NodumpFlag>(Models.Metadata.Header.ForceNodumpKey));
            if (Header.GetFieldValue<PackingFlag>(Models.Metadata.Header.ForcePackingKey) == PackingFlag.None)
                Header.SetFieldValue<PackingFlag>(Models.Metadata.Header.ForcePackingKey, header.GetFieldValue<PackingFlag>(Models.Metadata.Header.ForcePackingKey));
            if (Header.GetFieldValue<string?>(Models.Metadata.Header.HeaderKey) == null)
                Header.SetFieldValue<string?>(Models.Metadata.Header.HeaderKey, header.GetFieldValue<string?>(Models.Metadata.Header.HeaderKey));
            if (Header.GetFieldValue<string?>(Models.Metadata.Header.HomepageKey) == null)
                Header.SetFieldValue<string?>(Models.Metadata.Header.HomepageKey, header.GetFieldValue<string?>(Models.Metadata.Header.HomepageKey));
            if (Header.GetFieldValue<string?>(Models.Metadata.Header.IdKey) == null)
                Header.SetFieldValue<string?>(Models.Metadata.Header.IdKey, header.GetFieldValue<string?>(Models.Metadata.Header.IdKey));
            if (Header.GetFieldValue<string?>(Models.Metadata.Header.ImFolderKey) == null)
                Header.SetFieldValue<string?>(Models.Metadata.Header.ImFolderKey, header.GetFieldValue<string?>(Models.Metadata.Header.ImFolderKey));
            if (Header.GetFieldValue<bool?>(Models.Metadata.Header.LockBiosModeKey) == null)
                Header.SetFieldValue<bool?>(Models.Metadata.Header.LockBiosModeKey, header.GetFieldValue<bool?>(Models.Metadata.Header.LockBiosModeKey));
            if (Header.GetFieldValue<bool?>(Models.Metadata.Header.LockRomModeKey) == null)
                Header.SetFieldValue<bool?>(Models.Metadata.Header.LockRomModeKey, header.GetFieldValue<bool?>(Models.Metadata.Header.LockRomModeKey));
            if (Header.GetFieldValue<bool?>(Models.Metadata.Header.LockSampleModeKey) == null)
                Header.SetFieldValue<bool?>(Models.Metadata.Header.LockSampleModeKey, header.GetFieldValue<bool?>(Models.Metadata.Header.LockSampleModeKey));
            if (Header.GetFieldValue<string?>(Models.Metadata.Header.NameKey) == null)
                Header.SetFieldValue<string?>(Models.Metadata.Header.NameKey, header.GetFieldValue<string?>(Models.Metadata.Header.NameKey));
            if (Header.GetFieldValue<string?>(Models.Metadata.Header.PluginKey) == null)
                Header.SetFieldValue<string?>(Models.Metadata.Header.PluginKey, header.GetFieldValue<string?>(Models.Metadata.Header.PluginKey));
            if (Header.GetFieldValue<string?>(Models.Metadata.Header.RefNameKey) == null)
                Header.SetFieldValue<string?>(Models.Metadata.Header.RefNameKey, header.GetFieldValue<string?>(Models.Metadata.Header.RefNameKey));
            if (Header.GetFieldValue<MergingFlag>(Models.Metadata.Header.RomModeKey) == MergingFlag.None)
                Header.SetFieldValue<MergingFlag>(Models.Metadata.Header.RomModeKey, header.GetFieldValue<MergingFlag>(Models.Metadata.Header.RomModeKey));
            if (Header.GetFieldValue<string?>(Models.Metadata.Header.RomTitleKey) == null)
                Header.SetFieldValue<string?>(Models.Metadata.Header.RomTitleKey, header.GetFieldValue<string?>(Models.Metadata.Header.RomTitleKey));
            if (Header.GetFieldValue<string?>(Models.Metadata.Header.RootDirKey) == null)
                Header.SetFieldValue<string?>(Models.Metadata.Header.RootDirKey, header.GetFieldValue<string?>(Models.Metadata.Header.RootDirKey));
            if (Header.GetFieldValue<MergingFlag>(Models.Metadata.Header.SampleModeKey) == MergingFlag.None)
                Header.SetFieldValue<MergingFlag>(Models.Metadata.Header.SampleModeKey, header.GetFieldValue<MergingFlag>(Models.Metadata.Header.SampleModeKey));
            if (Header.GetFieldValue<string?>(Models.Metadata.Header.ScreenshotsHeightKey) == null)
                Header.SetFieldValue<string?>(Models.Metadata.Header.ScreenshotsHeightKey, header.GetFieldValue<string?>(Models.Metadata.Header.ScreenshotsHeightKey));
            if (Header.GetFieldValue<string?>(Models.Metadata.Header.ScreenshotsWidthKey) == null)
                Header.SetFieldValue<string?>(Models.Metadata.Header.ScreenshotsWidthKey, header.GetFieldValue<string?>(Models.Metadata.Header.ScreenshotsWidthKey));
            if (Header.GetFieldValue<string?>(Models.Metadata.Header.SystemKey) == null)
                Header.SetFieldValue<string?>(Models.Metadata.Header.SystemKey, header.GetFieldValue<string?>(Models.Metadata.Header.SystemKey));
            if (Header.GetFieldValue<string?>(Models.Metadata.Header.TypeKey) == null)
                Header.SetFieldValue<string?>(Models.Metadata.Header.TypeKey, header.GetFieldValue<string?>(Models.Metadata.Header.TypeKey));
            if (Header.GetFieldValue<string?>(Models.Metadata.Header.UrlKey) == null)
                Header.SetFieldValue<string?>(Models.Metadata.Header.UrlKey, header.GetFieldValue<string?>(Models.Metadata.Header.UrlKey));
            if (Header.GetFieldValue<string?>(Models.Metadata.Header.VersionKey) == null)
                Header.SetFieldValue<string?>(Models.Metadata.Header.VersionKey, header.GetFieldValue<string?>(Models.Metadata.Header.VersionKey));

            // Handle implied SuperDAT
            if (Header.GetFieldValue<string?>(Models.Metadata.Header.NameKey)?.Contains(" - SuperDAT") == true && keep)
            {
                if (Header.GetFieldValue<string?>(Models.Metadata.Header.TypeKey) == null)
                    Header.SetFieldValue<string?>(Models.Metadata.Header.TypeKey, "SuperDAT");
            }
        }

        /// <summary>
        /// Convert machines information
        /// </summary>
        /// <param name="items">Machine array to convert</param>
        /// <param name="filename">Name of the file to be parsed</param>
        /// <param name="indexId">Index ID for the DAT</param>
        /// <param name="statsOnly">True to only add item statistics while parsing, false otherwise</param>
        private void ConvertMachines(Models.Metadata.Machine[]? items, string filename, int indexId, bool statsOnly)
        {
            // If the array is invalid, we can't do anything
            if (items == null || !items.Any())
                return;

            // Loop through the machines and add
            foreach (var machine in items)
            {
                ConvertMachine(machine, filename, indexId, statsOnly);
            }
        }

        /// <summary>
        /// Convert machine information
        /// </summary>
        /// <param name="item">Machine to convert</param>
        /// <param name="filename">Name of the file to be parsed</param>
        /// <param name="indexId">Index ID for the DAT</param>
        /// <param name="statsOnly">True to only add item statistics while parsing, false otherwise</param>
        private void ConvertMachine(Models.Metadata.Machine? item, string filename, int indexId, bool statsOnly)
        {
            // If the machine is invalid, we can't do anything
            if (item == null || !item.Any())
                return;

            // Create an internal machine
            var machine = new DatItems.Machine(item);

            // Convert items in the machine
            if (item.ContainsKey(Models.Metadata.Machine.AdjusterKey))
            {
                var items = ReadItemArray<Models.Metadata.Adjuster>(item, Models.Metadata.Machine.AdjusterKey);
                ProcessItems(items, machine, filename, indexId, statsOnly);
            }
            if (item.ContainsKey(Models.Metadata.Machine.ArchiveKey))
            {
                var items = ReadItemArray<Models.Metadata.Archive>(item, Models.Metadata.Machine.ArchiveKey);
                ProcessItems(items, machine, filename, indexId, statsOnly);
            }
            if (item.ContainsKey(Models.Metadata.Machine.BiosSetKey))
            {
                var items = ReadItemArray<Models.Metadata.BiosSet>(item, Models.Metadata.Machine.BiosSetKey);
                ProcessItems(items, machine, filename, indexId, statsOnly);
            }
            if (item.ContainsKey(Models.Metadata.Machine.ChipKey))
            {
                var items = ReadItemArray<Models.Metadata.Chip>(item, Models.Metadata.Machine.ChipKey);
                ProcessItems(items, machine, filename, indexId, statsOnly);
            }
            if (item.ContainsKey(Models.Metadata.Machine.ConfigurationKey))
            {
                var items = ReadItemArray<Models.Metadata.Configuration>(item, Models.Metadata.Machine.ConfigurationKey);
                ProcessItems(items, machine, filename, indexId, statsOnly);
            }
            if (item.ContainsKey(Models.Metadata.Machine.DeviceKey))
            {
                var items = ReadItemArray<Models.Metadata.Device>(item, Models.Metadata.Machine.DeviceKey);
                ProcessItems(items, machine, filename, indexId, statsOnly);
            }
            if (item.ContainsKey(Models.Metadata.Machine.DeviceRefKey))
            {
                var items = ReadItemArray<Models.Metadata.DeviceRef>(item, Models.Metadata.Machine.DeviceRefKey);
                ProcessItems(items, machine, filename, indexId, statsOnly);
            }
            if (item.ContainsKey(Models.Metadata.Machine.DipSwitchKey))
            {
                var items = ReadItemArray<Models.Metadata.DipSwitch>(item, Models.Metadata.Machine.DipSwitchKey);
                ProcessItems(items, machine, filename, indexId, statsOnly);
            }
            if (item.ContainsKey(Models.Metadata.Machine.DiskKey))
            {
                var items = ReadItemArray<Models.Metadata.Disk>(item, Models.Metadata.Machine.DiskKey);
                ProcessItems(items, machine, filename, indexId, statsOnly);
            }
            if (item.ContainsKey(Models.Metadata.Machine.DisplayKey))
            {
                var items = ReadItemArray<Models.Metadata.Display>(item, Models.Metadata.Machine.DisplayKey);
                ProcessItems(items, machine, filename, indexId, statsOnly);
            }
            if (item.ContainsKey(Models.Metadata.Machine.DriverKey))
            {
                var items = ReadItemArray<Models.Metadata.Driver>(item, Models.Metadata.Machine.DriverKey);
                ProcessItems(items, machine, filename, indexId, statsOnly);
            }
            if (item.ContainsKey(Models.Metadata.Machine.DumpKey))
            {
                var items = ReadItemArray<Models.Metadata.Dump>(item, Models.Metadata.Machine.DumpKey);
                ProcessItems(items, machine, filename, indexId, statsOnly);
            }
            if (item.ContainsKey(Models.Metadata.Machine.FeatureKey))
            {
                var items = ReadItemArray<Models.Metadata.Feature>(item, Models.Metadata.Machine.FeatureKey);
                ProcessItems(items, machine, filename, indexId, statsOnly);
            }
            if (item.ContainsKey(Models.Metadata.Machine.InfoKey))
            {
                var items = ReadItemArray<Models.Metadata.Info>(item, Models.Metadata.Machine.InfoKey);
                ProcessItems(items, machine, filename, indexId, statsOnly);
            }
            if (item.ContainsKey(Models.Metadata.Machine.InputKey))
            {
                var items = ReadItemArray<Models.Metadata.Input>(item, Models.Metadata.Machine.InputKey);
                ProcessItems(items, machine, filename, indexId, statsOnly);
            }
            if (item.ContainsKey(Models.Metadata.Machine.MediaKey))
            {
                var items = ReadItemArray<Models.Metadata.Media>(item, Models.Metadata.Machine.MediaKey);
                ProcessItems(items, machine, filename, indexId, statsOnly);
            }
            if (item.ContainsKey(Models.Metadata.Machine.PartKey))
            {
                var items = ReadItemArray<Models.Metadata.Part>(item, Models.Metadata.Machine.PartKey);
                ProcessItems(items, machine, filename, indexId, statsOnly);
            }
            if (item.ContainsKey(Models.Metadata.Machine.PortKey))
            {
                var items = ReadItemArray<Models.Metadata.Port>(item, Models.Metadata.Machine.PortKey);
                ProcessItems(items, machine, filename, indexId, statsOnly);
            }
            if (item.ContainsKey(Models.Metadata.Machine.RamOptionKey))
            {
                var items = ReadItemArray<Models.Metadata.RamOption>(item, Models.Metadata.Machine.RamOptionKey);
                ProcessItems(items, machine, filename, indexId, statsOnly);
            }
            if (item.ContainsKey(Models.Metadata.Machine.ReleaseKey))
            {
                var items = ReadItemArray<Models.Metadata.Release>(item, Models.Metadata.Machine.ReleaseKey);
                ProcessItems(items, machine, filename, indexId, statsOnly);
            }
            if (item.ContainsKey(Models.Metadata.Machine.RomKey))
            {
                var items = ReadItemArray<Models.Metadata.Rom>(item, Models.Metadata.Machine.RomKey);
                ProcessItems(items, machine, filename, indexId, statsOnly);
            }
            if (item.ContainsKey(Models.Metadata.Machine.SampleKey))
            {
                var items = ReadItemArray<Models.Metadata.Sample>(item, Models.Metadata.Machine.SampleKey);
                ProcessItems(items, machine, filename, indexId, statsOnly);
            }
            if (item.ContainsKey(Models.Metadata.Machine.SharedFeatKey))
            {
                var items = ReadItemArray<Models.Metadata.SharedFeat>(item, Models.Metadata.Machine.SharedFeatKey);
                ProcessItems(items, machine, filename, indexId, statsOnly);
            }
            if (item.ContainsKey(Models.Metadata.Machine.SoftwareListKey))
            {
                var items = ReadItemArray<Models.Metadata.SoftwareList>(item, Models.Metadata.Machine.SoftwareListKey);
                ProcessItems(items, machine, filename, indexId, statsOnly);
            }
            if (item.ContainsKey(Models.Metadata.Machine.SoundKey))
            {
                var items = ReadItemArray<Models.Metadata.Sound>(item, Models.Metadata.Machine.SoundKey);
                ProcessItems(items, machine, filename, indexId, statsOnly);
            }
            if (item.ContainsKey(Models.Metadata.Machine.TruripKey))
            {
                // TODO: Figure out what this maps to
            }
            if (item.ContainsKey(Models.Metadata.Machine.VideoKey))
            {
                var items = ReadItemArray<Models.Metadata.Video>(item, Models.Metadata.Machine.VideoKey);
                ProcessItems(items, machine, filename, indexId, statsOnly);
            }
        }

        /// <summary>
        /// Convert Adjuster information 
        /// </summary>
        /// <param name="items">Array of internal items to convert</param>
        /// <param name="machine">Machine to use with the converted items</param>
        /// <param name="filename">Name of the file to be parsed</param>
        /// <param name="indexId">Index ID for the DAT</param>
        /// <param name="statsOnly">True to only add item statistics while parsing, false otherwise</param>
        private void ProcessItems(Models.Metadata.Adjuster[]? items, DatItems.Machine machine, string filename, int indexId, bool statsOnly)
        {
            // If the array is null or empty, return without processing
            if (items == null || items.Length == 0)
                return;

            // Loop through the items and add
            foreach (var item in items)
            {
                var datItem = new DatItems.Formats.Adjuster(item);
                datItem.SetFieldValue<DatItems.Source?>(DatItems.DatItem.SourceKey, new DatItems.Source { Index = indexId, Name = filename });
                datItem.CopyMachineInformation(machine);
                ParseAddHelper(datItem, statsOnly);
            }
        }

        /// <summary>
        /// Convert Archive information 
        /// </summary>
        /// <param name="items">Array of internal items to convert</param>
        /// <param name="machine">Machine to use with the converted items</param>
        /// <param name="filename">Name of the file to be parsed</param>
        /// <param name="indexId">Index ID for the DAT</param>
        /// <param name="statsOnly">True to only add item statistics while parsing, false otherwise</param>
        private void ProcessItems(Models.Metadata.Archive[]? items, DatItems.Machine machine, string filename, int indexId, bool statsOnly)
        {
            // If the array is null or empty, return without processing
            if (items == null || items.Length == 0)
                return;

            // Loop through the items and add
            foreach (var item in items)
            {
                var datItem = new DatItems.Formats.Archive(item);
                datItem.SetFieldValue<DatItems.Source?>(DatItems.DatItem.SourceKey, new DatItems.Source { Index = indexId, Name = filename });
                datItem.CopyMachineInformation(machine);
                ParseAddHelper(datItem, statsOnly);
            }
        }

        /// <summary>
        /// Convert BiosSet information 
        /// </summary>
        /// <param name="items">Array of internal items to convert</param>
        /// <param name="machine">Machine to use with the converted items</param>
        /// <param name="filename">Name of the file to be parsed</param>
        /// <param name="indexId">Index ID for the DAT</param>
        /// <param name="statsOnly">True to only add item statistics while parsing, false otherwise</param>
        private void ProcessItems(Models.Metadata.BiosSet[]? items, DatItems.Machine machine, string filename, int indexId, bool statsOnly)
        {
            // If the array is null or empty, return without processing
            if (items == null || items.Length == 0)
                return;

            // Loop through the items and add
            foreach (var item in items)
            {
                var datItem = new DatItems.Formats.BiosSet(item);
                datItem.SetFieldValue<DatItems.Source?>(DatItems.DatItem.SourceKey, new DatItems.Source { Index = indexId, Name = filename });
                datItem.CopyMachineInformation(machine);
                ParseAddHelper(datItem, statsOnly);
            }
        }

        /// <summary>
        /// Convert Chip information 
        /// </summary>
        /// <param name="items">Array of internal items to convert</param>
        /// <param name="machine">Machine to use with the converted items</param>
        /// <param name="filename">Name of the file to be parsed</param>
        /// <param name="indexId">Index ID for the DAT</param>
        /// <param name="statsOnly">True to only add item statistics while parsing, false otherwise</param>
        private void ProcessItems(Models.Metadata.Chip[]? items, DatItems.Machine machine, string filename, int indexId, bool statsOnly)
        {
            // If the array is null or empty, return without processing
            if (items == null || items.Length == 0)
                return;

            // Loop through the items and add
            foreach (var item in items)
            {
                var datItem = new DatItems.Formats.Chip(item);
                datItem.SetFieldValue<DatItems.Source?>(DatItems.DatItem.SourceKey, new DatItems.Source { Index = indexId, Name = filename });
                datItem.CopyMachineInformation(machine);
                ParseAddHelper(datItem, statsOnly);
            }
        }

        /// <summary>
        /// Convert Configuration information 
        /// </summary>
        /// <param name="items">Array of internal items to convert</param>
        /// <param name="machine">Machine to use with the converted items</param>
        /// <param name="filename">Name of the file to be parsed</param>
        /// <param name="indexId">Index ID for the DAT</param>
        /// <param name="statsOnly">True to only add item statistics while parsing, false otherwise</param>
        private void ProcessItems(Models.Metadata.Configuration[]? items, DatItems.Machine machine, string filename, int indexId, bool statsOnly)
        {
            // If the array is null or empty, return without processing
            if (items == null || items.Length == 0)
                return;

            // Loop through the items and add
            foreach (var item in items)
            {
                var datItem = new DatItems.Formats.Configuration(item);
                datItem.SetFieldValue<DatItems.Source?>(DatItems.DatItem.SourceKey, new DatItems.Source { Index = indexId, Name = filename });
                datItem.CopyMachineInformation(machine);
                ParseAddHelper(datItem, statsOnly);
            }
        }

        /// <summary>
        /// Convert DataArea information 
        /// </summary>
        /// <param name="items">Array of internal items to convert</param>
        /// <param name="machine">Machine to use with the converted items</param>
        /// <param name="filename">Name of the file to be parsed</param>
        /// <param name="indexId">Index ID for the DAT</param>
        /// <param name="statsOnly">True to only add item statistics while parsing, false otherwise</param>
        private void ProcessItems(Models.Metadata.DataArea[]? items, DatItems.Machine machine, string filename, int indexId, bool statsOnly)
        {
            // If the array is null or empty, return without processing
            if (items == null || items.Length == 0)
                return;

            // TODO: Extract Roms

            // Loop through the items and add
            foreach (var item in items)
            {
                var datItem = new DatItems.Formats.DataArea(item);
                datItem.SetFieldValue<DatItems.Source?>(DatItems.DatItem.SourceKey, new DatItems.Source { Index = indexId, Name = filename });
                datItem.CopyMachineInformation(machine);
                ParseAddHelper(datItem, statsOnly);
            }
        }

        /// <summary>
        /// Convert Device information 
        /// </summary>
        /// <param name="items">Array of internal items to convert</param>
        /// <param name="machine">Machine to use with the converted items</param>
        /// <param name="filename">Name of the file to be parsed</param>
        /// <param name="indexId">Index ID for the DAT</param>
        /// <param name="statsOnly">True to only add item statistics while parsing, false otherwise</param>
        private void ProcessItems(Models.Metadata.Device[]? items, DatItems.Machine machine, string filename, int indexId, bool statsOnly)
        {
            // If the array is null or empty, return without processing
            if (items == null || items.Length == 0)
                return;

            // Loop through the items and add
            foreach (var item in items)
            {
                var datItem = new DatItems.Formats.Device(item);
                datItem.SetFieldValue<DatItems.Source?>(DatItems.DatItem.SourceKey, new DatItems.Source { Index = indexId, Name = filename });
                datItem.CopyMachineInformation(machine);
                ParseAddHelper(datItem, statsOnly);
            }
        }

        /// <summary>
        /// Convert DeviceRef information 
        /// </summary>
        /// <param name="items">Array of internal items to convert</param>
        /// <param name="machine">Machine to use with the converted items</param>
        /// <param name="filename">Name of the file to be parsed</param>
        /// <param name="indexId">Index ID for the DAT</param>
        /// <param name="statsOnly">True to only add item statistics while parsing, false otherwise</param>
        private void ProcessItems(Models.Metadata.DeviceRef[]? items, DatItems.Machine machine, string filename, int indexId, bool statsOnly)
        {
            // If the array is null or empty, return without processing
            if (items == null || items.Length == 0)
                return;

            // Loop through the items and add
            foreach (var item in items)
            {
                var datItem = new DatItems.Formats.DeviceRef(item);
                datItem.SetFieldValue<DatItems.Source?>(DatItems.DatItem.SourceKey, new DatItems.Source { Index = indexId, Name = filename });
                datItem.CopyMachineInformation(machine);
                ParseAddHelper(datItem, statsOnly);
            }
        }

        /// <summary>
        /// Convert DipLocation information 
        /// </summary>
        /// <param name="items">Array of internal items to convert</param>
        /// <param name="machine">Machine to use with the converted items</param>
        /// <param name="filename">Name of the file to be parsed</param>
        /// <param name="indexId">Index ID for the DAT</param>
        /// <param name="statsOnly">True to only add item statistics while parsing, false otherwise</param>
        private void ProcessItems(Models.Metadata.DipLocation[]? items, DatItems.Machine machine, string filename, int indexId, bool statsOnly)
        {
            // If the array is null or empty, return without processing
            if (items == null || items.Length == 0)
                return;

            // Loop through the items and add
            foreach (var item in items)
            {
                var datItem = new DatItems.Formats.DipLocation(item);
                datItem.SetFieldValue<DatItems.Source?>(DatItems.DatItem.SourceKey, new DatItems.Source { Index = indexId, Name = filename });
                datItem.CopyMachineInformation(machine);
                ParseAddHelper(datItem, statsOnly);
            }
        }

        /// <summary>
        /// Convert DipSwitch information 
        /// </summary>
        /// <param name="items">Array of internal items to convert</param>
        /// <param name="machine">Machine to use with the converted items</param>
        /// <param name="filename">Name of the file to be parsed</param>
        /// <param name="indexId">Index ID for the DAT</param>
        /// <param name="statsOnly">True to only add item statistics while parsing, false otherwise</param>
        private void ProcessItems(Models.Metadata.DipSwitch[]? items, DatItems.Machine machine, string filename, int indexId, bool statsOnly)
        {
            // If the array is null or empty, return without processing
            if (items == null || items.Length == 0)
                return;

            // Loop through the items and add
            foreach (var item in items)
            {
                var datItem = new DatItems.Formats.DipSwitch(item);
                datItem.SetFieldValue<DatItems.Source?>(DatItems.DatItem.SourceKey, new DatItems.Source { Index = indexId, Name = filename });
                datItem.CopyMachineInformation(machine);
                ParseAddHelper(datItem, statsOnly);
            }
        }

        /// <summary>
        /// Convert DipValue information 
        /// </summary>
        /// <param name="items">Array of internal items to convert</param>
        /// <param name="machine">Machine to use with the converted items</param>
        /// <param name="filename">Name of the file to be parsed</param>
        /// <param name="indexId">Index ID for the DAT</param>
        /// <param name="statsOnly">True to only add item statistics while parsing, false otherwise</param>
        private void ProcessItems(Models.Metadata.DipValue[]? items, DatItems.Machine machine, string filename, int indexId, bool statsOnly)
        {
            // If the array is null or empty, return without processing
            if (items == null || items.Length == 0)
                return;

            // Loop through the items and add
            foreach (var item in items)
            {
                var datItem = new DatItems.Formats.DipValue(item);
                datItem.SetFieldValue<DatItems.Source?>(DatItems.DatItem.SourceKey, new DatItems.Source { Index = indexId, Name = filename });
                datItem.CopyMachineInformation(machine);
                ParseAddHelper(datItem, statsOnly);
            }
        }

        /// <summary>
        /// Convert Disk information 
        /// </summary>
        /// <param name="items">Array of internal items to convert</param>
        /// <param name="machine">Machine to use with the converted items</param>
        /// <param name="filename">Name of the file to be parsed</param>
        /// <param name="indexId">Index ID for the DAT</param>
        /// <param name="statsOnly">True to only add item statistics while parsing, false otherwise</param>
        private void ProcessItems(Models.Metadata.Disk[]? items, DatItems.Machine machine, string filename, int indexId, bool statsOnly)
        {
            // If the array is null or empty, return without processing
            if (items == null || items.Length == 0)
                return;

            // Loop through the items and add
            foreach (var item in items)
            {
                var datItem = new DatItems.Formats.Disk(item);
                datItem.SetFieldValue<DatItems.Source?>(DatItems.DatItem.SourceKey, new DatItems.Source { Index = indexId, Name = filename });
                datItem.CopyMachineInformation(machine);
                ParseAddHelper(datItem, statsOnly);
            }
        }

        /// <summary>
        /// Convert DiskArea information 
        /// </summary>
        /// <param name="items">Array of internal items to convert</param>
        /// <param name="machine">Machine to use with the converted items</param>
        /// <param name="filename">Name of the file to be parsed</param>
        /// <param name="indexId">Index ID for the DAT</param>
        /// <param name="statsOnly">True to only add item statistics while parsing, false otherwise</param>
        private void ProcessItems(Models.Metadata.DiskArea[]? items, DatItems.Machine machine, string filename, int indexId, bool statsOnly)
        {
            // If the array is null or empty, return without processing
            if (items == null || items.Length == 0)
                return;

            // TODO: Extract Disks

            // Loop through the items and add
            foreach (var item in items)
            {
                var datItem = new DatItems.Formats.DiskArea(item);
                datItem.SetFieldValue<DatItems.Source?>(DatItems.DatItem.SourceKey, new DatItems.Source { Index = indexId, Name = filename });
                datItem.CopyMachineInformation(machine);
                ParseAddHelper(datItem, statsOnly);
            }
        }

        /// <summary>
        /// Convert Display information 
        /// </summary>
        /// <param name="items">Array of internal items to convert</param>
        /// <param name="machine">Machine to use with the converted items</param>
        /// <param name="filename">Name of the file to be parsed</param>
        /// <param name="indexId">Index ID for the DAT</param>
        /// <param name="statsOnly">True to only add item statistics while parsing, false otherwise</param>
        private void ProcessItems(Models.Metadata.Display[]? items, DatItems.Machine machine, string filename, int indexId, bool statsOnly)
        {
            // If the array is null or empty, return without processing
            if (items == null || items.Length == 0)
                return;

            // Loop through the items and add
            foreach (var item in items)
            {
                var datItem = new DatItems.Formats.Display(item);
                datItem.SetFieldValue<DatItems.Source?>(DatItems.DatItem.SourceKey, new DatItems.Source { Index = indexId, Name = filename });
                datItem.CopyMachineInformation(machine);
                ParseAddHelper(datItem, statsOnly);
            }
        }

        /// <summary>
        /// Convert Driver information 
        /// </summary>
        /// <param name="items">Array of internal items to convert</param>
        /// <param name="machine">Machine to use with the converted items</param>
        /// <param name="filename">Name of the file to be parsed</param>
        /// <param name="indexId">Index ID for the DAT</param>
        /// <param name="statsOnly">True to only add item statistics while parsing, false otherwise</param>
        private void ProcessItems(Models.Metadata.Driver[]? items, DatItems.Machine machine, string filename, int indexId, bool statsOnly)
        {
            // If the array is null or empty, return without processing
            if (items == null || items.Length == 0)
                return;

            // Loop through the items and add
            foreach (var item in items)
            {
                var datItem = new DatItems.Formats.Driver(item);
                datItem.SetFieldValue<DatItems.Source?>(DatItems.DatItem.SourceKey, new DatItems.Source { Index = indexId, Name = filename });
                datItem.CopyMachineInformation(machine);
                ParseAddHelper(datItem, statsOnly);
            }
        }

        /// <summary>
        /// Convert Dump information 
        /// </summary>
        /// <param name="items">Array of internal items to convert</param>
        /// <param name="machine">Machine to use with the converted items</param>
        /// <param name="filename">Name of the file to be parsed</param>
        /// <param name="indexId">Index ID for the DAT</param>
        /// <param name="statsOnly">True to only add item statistics while parsing, false otherwise</param>
        private void ProcessItems(Models.Metadata.Dump[]? items, DatItems.Machine machine, string filename, int indexId, bool statsOnly)
        {
            // If the array is null or empty, return without processing
            if (items == null || items.Length == 0)
                return;

            // Loop through the items and add
            foreach (var item in items)
            {
                // TODO: Handle processing of Dump items (rom, megarom, sccpluscart)
            }
        }

        /// <summary>
        /// Convert Feature information 
        /// </summary>
        /// <param name="items">Array of internal items to convert</param>
        /// <param name="machine">Machine to use with the converted items</param>
        /// <param name="filename">Name of the file to be parsed</param>
        /// <param name="indexId">Index ID for the DAT</param>
        /// <param name="statsOnly">True to only add item statistics while parsing, false otherwise</param>
        private void ProcessItems(Models.Metadata.Feature[]? items, DatItems.Machine machine, string filename, int indexId, bool statsOnly)
        {
            // If the array is null or empty, return without processing
            if (items == null || items.Length == 0)
                return;

            // Loop through the items and add
            foreach (var item in items)
            {
                var datItem = new DatItems.Formats.Feature(item);
                datItem.SetFieldValue<DatItems.Source?>(DatItems.DatItem.SourceKey, new DatItems.Source { Index = indexId, Name = filename });
                datItem.CopyMachineInformation(machine);
                ParseAddHelper(datItem, statsOnly);
            }
        }

        /// <summary>
        /// Convert Info information 
        /// </summary>
        /// <param name="items">Array of internal items to convert</param>
        /// <param name="machine">Machine to use with the converted items</param>
        /// <param name="filename">Name of the file to be parsed</param>
        /// <param name="indexId">Index ID for the DAT</param>
        /// <param name="statsOnly">True to only add item statistics while parsing, false otherwise</param>
        private void ProcessItems(Models.Metadata.Info[]? items, DatItems.Machine machine, string filename, int indexId, bool statsOnly)
        {
            // If the array is null or empty, return without processing
            if (items == null || items.Length == 0)
                return;

            // Loop through the items and add
            foreach (var item in items)
            {
                var datItem = new DatItems.Formats.Info(item);
                datItem.SetFieldValue<DatItems.Source?>(DatItems.DatItem.SourceKey, new DatItems.Source { Index = indexId, Name = filename });
                datItem.CopyMachineInformation(machine);
                ParseAddHelper(datItem, statsOnly);
            }
        }

        /// <summary>
        /// Convert Input information 
        /// </summary>
        /// <param name="items">Array of internal items to convert</param>
        /// <param name="machine">Machine to use with the converted items</param>
        /// <param name="filename">Name of the file to be parsed</param>
        /// <param name="indexId">Index ID for the DAT</param>
        /// <param name="statsOnly">True to only add item statistics while parsing, false otherwise</param>
        private void ProcessItems(Models.Metadata.Input[]? items, DatItems.Machine machine, string filename, int indexId, bool statsOnly)
        {
            // If the array is null or empty, return without processing
            if (items == null || items.Length == 0)
                return;

            // Loop through the items and add
            foreach (var item in items)
            {
                var datItem = new DatItems.Formats.Input(item);
                datItem.SetFieldValue<DatItems.Source?>(DatItems.DatItem.SourceKey, new DatItems.Source { Index = indexId, Name = filename });
                datItem.CopyMachineInformation(machine);
                ParseAddHelper(datItem, statsOnly);
            }
        }

        /// <summary>
        /// Convert Media information 
        /// </summary>
        /// <param name="items">Array of internal items to convert</param>
        /// <param name="machine">Machine to use with the converted items</param>
        /// <param name="filename">Name of the file to be parsed</param>
        /// <param name="indexId">Index ID for the DAT</param>
        /// <param name="statsOnly">True to only add item statistics while parsing, false otherwise</param>
        private void ProcessItems(Models.Metadata.Media[]? items, DatItems.Machine machine, string filename, int indexId, bool statsOnly)
        {
            // If the array is null or empty, return without processing
            if (items == null || items.Length == 0)
                return;

            // Loop through the items and add
            foreach (var item in items)
            {
                var datItem = new DatItems.Formats.Media(item);
                datItem.SetFieldValue<DatItems.Source?>(DatItems.DatItem.SourceKey, new DatItems.Source { Index = indexId, Name = filename });
                datItem.CopyMachineInformation(machine);
                ParseAddHelper(datItem, statsOnly);
            }
        }

        /// <summary>
        /// Convert Part information 
        /// </summary>
        /// <param name="items">Array of internal items to convert</param>
        /// <param name="machine">Machine to use with the converted items</param>
        /// <param name="filename">Name of the file to be parsed</param>
        /// <param name="indexId">Index ID for the DAT</param>
        /// <param name="statsOnly">True to only add item statistics while parsing, false otherwise</param>
        private void ProcessItems(Models.Metadata.Part[]? items, DatItems.Machine machine, string filename, int indexId, bool statsOnly)
        {
            // If the array is null or empty, return without processing
            if (items == null || items.Length == 0)
                return;

            // TODO: Extract DataAreas
            // TODO: Extract DiskAreas
            // TODO: Extract DipSwitches

            // Loop through the items and add
            foreach (var item in items)
            {
                var datItem = new DatItems.Formats.Part(item);
                datItem.SetFieldValue<DatItems.Source?>(DatItems.DatItem.SourceKey, new DatItems.Source { Index = indexId, Name = filename });
                datItem.CopyMachineInformation(machine);
                ParseAddHelper(datItem, statsOnly);
            }
        }

        /// <summary>
        /// Convert Port information 
        /// </summary>
        /// <param name="items">Array of internal items to convert</param>
        /// <param name="machine">Machine to use with the converted items</param>
        /// <param name="filename">Name of the file to be parsed</param>
        /// <param name="indexId">Index ID for the DAT</param>
        /// <param name="statsOnly">True to only add item statistics while parsing, false otherwise</param>
        private void ProcessItems(Models.Metadata.Port[]? items, DatItems.Machine machine, string filename, int indexId, bool statsOnly)
        {
            // If the array is null or empty, return without processing
            if (items == null || items.Length == 0)
                return;

            // Loop through the items and add
            foreach (var item in items)
            {
                var datItem = new DatItems.Formats.Port(item);
                datItem.SetFieldValue<DatItems.Source?>(DatItems.DatItem.SourceKey, new DatItems.Source { Index = indexId, Name = filename });
                datItem.CopyMachineInformation(machine);
                ParseAddHelper(datItem, statsOnly);
            }
        }

        /// <summary>
        /// Convert RamOption information 
        /// </summary>
        /// <param name="items">Array of internal items to convert</param>
        /// <param name="machine">Machine to use with the converted items</param>
        /// <param name="filename">Name of the file to be parsed</param>
        /// <param name="indexId">Index ID for the DAT</param>
        /// <param name="statsOnly">True to only add item statistics while parsing, false otherwise</param>
        private void ProcessItems(Models.Metadata.RamOption[]? items, DatItems.Machine machine, string filename, int indexId, bool statsOnly)
        {
            // If the array is null or empty, return without processing
            if (items == null || items.Length == 0)
                return;

            // Loop through the items and add
            foreach (var item in items)
            {
                var datItem = new DatItems.Formats.RamOption(item);
                datItem.SetFieldValue<DatItems.Source?>(DatItems.DatItem.SourceKey, new DatItems.Source { Index = indexId, Name = filename });
                datItem.CopyMachineInformation(machine);
                ParseAddHelper(datItem, statsOnly);
            }
        }

        /// <summary>
        /// Convert Release information 
        /// </summary>
        /// <param name="items">Array of internal items to convert</param>
        /// <param name="machine">Machine to use with the converted items</param>
        /// <param name="filename">Name of the file to be parsed</param>
        /// <param name="indexId">Index ID for the DAT</param>
        /// <param name="statsOnly">True to only add item statistics while parsing, false otherwise</param>
        private void ProcessItems(Models.Metadata.Release[]? items, DatItems.Machine machine, string filename, int indexId, bool statsOnly)
        {
            // If the array is null or empty, return without processing
            if (items == null || items.Length == 0)
                return;

            // Loop through the items and add
            foreach (var item in items)
            {
                var datItem = new DatItems.Formats.Release(item);
                datItem.SetFieldValue<DatItems.Source?>(DatItems.DatItem.SourceKey, new DatItems.Source { Index = indexId, Name = filename });
                datItem.CopyMachineInformation(machine);
                ParseAddHelper(datItem, statsOnly);
            }
        }

        /// <summary>
        /// Convert Rom information 
        /// </summary>
        /// <param name="items">Array of internal items to convert</param>
        /// <param name="machine">Machine to use with the converted items</param>
        /// <param name="filename">Name of the file to be parsed</param>
        /// <param name="indexId">Index ID for the DAT</param>
        /// <param name="statsOnly">True to only add item statistics while parsing, false otherwise</param>
        private void ProcessItems(Models.Metadata.Rom[]? items, DatItems.Machine machine, string filename, int indexId, bool statsOnly)
        {
            // If the array is null or empty, return without processing
            if (items == null || items.Length == 0)
                return;

            // Loop through the items and add
            foreach (var item in items)
            {
                var datItem = new DatItems.Formats.Rom(item);
                datItem.SetFieldValue<DatItems.Source?>(DatItems.DatItem.SourceKey, new DatItems.Source { Index = indexId, Name = filename });
                datItem.CopyMachineInformation(machine);
                ParseAddHelper(datItem, statsOnly);
            }
        }

        /// <summary>
        /// Convert Sample information 
        /// </summary>
        /// <param name="items">Array of internal items to convert</param>
        /// <param name="machine">Machine to use with the converted items</param>
        /// <param name="filename">Name of the file to be parsed</param>
        /// <param name="indexId">Index ID for the DAT</param>
        /// <param name="statsOnly">True to only add item statistics while parsing, false otherwise</param>
        private void ProcessItems(Models.Metadata.Sample[]? items, DatItems.Machine machine, string filename, int indexId, bool statsOnly)
        {
            // If the array is null or empty, return without processing
            if (items == null || items.Length == 0)
                return;

            // Loop through the items and add
            foreach (var item in items)
            {
                var datItem = new DatItems.Formats.Sample(item);
                datItem.SetFieldValue<DatItems.Source?>(DatItems.DatItem.SourceKey, new DatItems.Source { Index = indexId, Name = filename });
                datItem.CopyMachineInformation(machine);
                ParseAddHelper(datItem, statsOnly);
            }
        }

        /// <summary>
        /// Convert SharedFeat information 
        /// </summary>
        /// <param name="items">Array of internal items to convert</param>
        /// <param name="machine">Machine to use with the converted items</param>
        /// <param name="filename">Name of the file to be parsed</param>
        /// <param name="indexId">Index ID for the DAT</param>
        /// <param name="statsOnly">True to only add item statistics while parsing, false otherwise</param>
        private void ProcessItems(Models.Metadata.SharedFeat[]? items, DatItems.Machine machine, string filename, int indexId, bool statsOnly)
        {
            // If the array is null or empty, return without processing
            if (items == null || items.Length == 0)
                return;

            // Loop through the items and add
            foreach (var item in items)
            {
                var datItem = new DatItems.Formats.SharedFeat(item);
                datItem.SetFieldValue<DatItems.Source?>(DatItems.DatItem.SourceKey, new DatItems.Source { Index = indexId, Name = filename });
                datItem.CopyMachineInformation(machine);
                ParseAddHelper(datItem, statsOnly);
            }
        }

        /// <summary>
        /// Convert SoftwareList information 
        /// </summary>
        /// <param name="items">Array of internal items to convert</param>
        /// <param name="machine">Machine to use with the converted items</param>
        /// <param name="filename">Name of the file to be parsed</param>
        /// <param name="indexId">Index ID for the DAT</param>
        /// <param name="statsOnly">True to only add item statistics while parsing, false otherwise</param>
        private void ProcessItems(Models.Metadata.SoftwareList[]? items, DatItems.Machine machine, string filename, int indexId, bool statsOnly)
        {
            // If the array is null or empty, return without processing
            if (items == null || items.Length == 0)
                return;

            // Loop through the items and add
            foreach (var item in items)
            {
                var datItem = new DatItems.Formats.SoftwareList(item);
                datItem.SetFieldValue<DatItems.Source?>(DatItems.DatItem.SourceKey, new DatItems.Source { Index = indexId, Name = filename });
                datItem.CopyMachineInformation(machine);
                ParseAddHelper(datItem, statsOnly);
            }
        }

        /// <summary>
        /// Convert Sound information 
        /// </summary>
        /// <param name="items">Array of internal items to convert</param>
        /// <param name="machine">Machine to use with the converted items</param>
        /// <param name="filename">Name of the file to be parsed</param>
        /// <param name="indexId">Index ID for the DAT</param>
        /// <param name="statsOnly">True to only add item statistics while parsing, false otherwise</param>
        private void ProcessItems(Models.Metadata.Sound[]? items, DatItems.Machine machine, string filename, int indexId, bool statsOnly)
        {
            // If the array is null or empty, return without processing
            if (items == null || items.Length == 0)
                return;

            // Loop through the items and add
            foreach (var item in items)
            {
                var datItem = new DatItems.Formats.Sound(item);
                datItem.SetFieldValue<DatItems.Source?>(DatItems.DatItem.SourceKey, new DatItems.Source { Index = indexId, Name = filename });
                datItem.CopyMachineInformation(machine);
                ParseAddHelper(datItem, statsOnly);
            }
        }

        /// <summary>
        /// Convert Video information 
        /// </summary>
        /// <param name="items">Array of internal items to convert</param>
        /// <param name="machine">Machine to use with the converted items</param>
        /// <param name="filename">Name of the file to be parsed</param>
        /// <param name="indexId">Index ID for the DAT</param>
        /// <param name="statsOnly">True to only add item statistics while parsing, false otherwise</param>
        private void ProcessItems(Models.Metadata.Video[]? items, DatItems.Machine machine, string filename, int indexId, bool statsOnly)
        {
            // If the array is null or empty, return without processing
            if (items == null || items.Length == 0)
                return;

            // Loop through the items and add
            foreach (var item in items)
            {
                var datItem = new DatItems.Formats.Display(item);
                datItem.SetFieldValue<DatItems.Source?>(DatItems.DatItem.SourceKey, new DatItems.Source { Index = indexId, Name = filename });
                datItem.CopyMachineInformation(machine);
                ParseAddHelper(datItem, statsOnly);
            }
        }

        /// <summary>
        /// Read an item array from a given key, if possible
        /// </summary>
        private static T[]? ReadItemArray<T>(Models.Metadata.DictionaryBase item, string key) where T : Models.Metadata.DictionaryBase
        {
            var items = item.Read<T[]>(key);
            if (items == default)
            {
                var single = item.Read<T>(key);
                if (single != default)
                    items = [single];
            }

            return items;
        }

        #endregion
    }
}