Added VDF Generator

007SaveTool/VdfGenerator/KeyValue/KeyValueSerializer.cs

@@ -0,0 +1,53 @@
+using EonaCat.FirstLight.SaveTransfer.VdfGenerator.KeyValue.Models;
+using System.Text;
+
+namespace EonaCat.FirstLight.SaveTransfer.VdfGenerator.KeyValue;
+
+/// <summary>
+/// Provides functionality to serialize key–value groups into a text-based format.
+/// </summary>
+public class KeyValueSerializer
+{
+    /// <summary>
+    /// Serializes the given key–value group into a text format.
+    /// </summary>
+    /// <param name="group">The key–value group to serialize. Cannot be null.</param>
+    /// <returns>A string representing the serialized form of the key–value group.</returns>
+    public static string Serialize(KeyValueGroup group)
+    {
+        var sb = new StringBuilder();
+        SerializeGroup(group, sb, 0);
+        return sb.ToString();
+    }
+
+    /// <summary>
+    /// Serializes the specified key-value group and its child elements into a formatted string representation, appending the result to the provided StringBuilder.
+    /// </summary>
+    /// <param name="group">The key-value group to serialize. Cannot be null.</param>
+    /// <param name="sb">The StringBuilder to which the serialized output is appended. Cannot be null.</param>
+    /// <param name="indent">The indentation level to apply to the serialized output.</param>
+    private static void SerializeGroup(KeyValueGroup group, StringBuilder sb, int indent)
+    {
+        const char padChar = '\t';
+        var pad = new string(padChar, indent);
+
+        sb.Append($"{pad}\"{group.Key}\"\n");
+        sb.Append($"{pad}{{\n");
+
+        foreach (var node in group.Nodes)
+        {
+            switch (node)
+            {
+                case Models.KeyValuePair pair:
+                    sb.Append($"{pad}{padChar}\"{pair.Key}\"{padChar}{padChar}\"{pair.Value}\"\n");
+                    break;
+
+                case KeyValueGroup childGroup:
+                    SerializeGroup(childGroup, sb, indent + 1);
+                    break;
+            }
+        }
+
+        sb.Append($"{pad}}}\n");
+    }
+}