Add EverdriveSMDB machine serialization

SabreTools.Models/Internal/Machine.cs

@@ -3,7 +3,7 @@ using System.Collections.Generic;
 namespace SabreTools.Models.Internal
 {
     /// <summary>
-    /// Format-agnostic representation of item data
+    /// Format-agnostic representation of game, machine, and set data
     /// </summary>
     public class Machine : Dictionary<string, object?>
     {

SabreTools.Serialization/Internal.EverdriveSMDB.cs

@@ -1,3 +1,5 @@
+using System.Collections.Generic;
+
 namespace SabreTools.Serialization
 {
     /// <summary>
@@ -7,6 +9,18 @@ namespace SabreTools.Serialization
     {
         #region Serialize
 
+        /// <summary>
+        /// Convert from <cref="Models.EverdriveSMDB.Row"/> to <cref="Models.Internal.Machine"/>
+        /// </summary>
+        public static Models.Internal.Machine ConvertMachineFromEverdriveSMDB(Models.EverdriveSMDB.Row item)
+        {
+            var machine = new Models.Internal.Machine
+            {
+                [Models.Internal.Machine.RomKey] = ConvertFromEverdriveSMDB(item),
+            };
+            return machine;
+        }
+
         /// <summary>
         /// Convert from <cref="Models.EverdriveSMDB.Row"/> to <cref="Models.Internal.Rom"/>
         /// </summary>
@@ -28,6 +42,22 @@ namespace SabreTools.Serialization
 
         #region Deserialize
 
+        /// <summary>
+        /// Convert from <cref="Models.Internal.Machine"/> to an array of <cref="Models.EverdriveSMDB.Row"/>
+        /// </summary>
+        public static Models.EverdriveSMDB.Row[]? ConvertMachineToEverdriveSMDB(Models.Internal.Machine item)
+        {
+            if (!item.ContainsKey(Models.Internal.Machine.RomKey) || item[Models.Internal.Machine.RomKey] is not Models.Internal.Rom[] roms)
+                return null;
+
+            var fileItems = new List<Models.EverdriveSMDB.Row>();
+            foreach (var rom in roms)
+            {
+                fileItems.Add(ConvertToEverdriveSMDB(rom));
+            }
+            return fileItems.ToArray();
+        }
+
         /// <summary>
         /// Convert from <cref="Models.Internal.Rom"/> to <cref="Models.EverdriveSMDB.Row"/>
         /// </summary>