Factories for templates and objects, Sztl parsing

SessionZero/Data/SzObject.cs

@@ -1,3 +1,4 @@
+using System;
 using System.Collections.Generic;
 using SessionZero.Data.Sztl;
 
@@ -14,21 +15,82 @@ public class SzObject
 
     public virtual object? GetFieldValue(string fieldPath)
     {
-        throw new System.NotImplementedException();
+        if (string.IsNullOrEmpty(fieldPath)) return null;
+
+        var parts = fieldPath.Split('.');
+        if (parts.Length == 1)
+        {
+            if (Fields.TryGetValue(parts[0], out var field))
+                return field.Value;
+            return null;
+        }
+
+        SzFieldGroup? currentGroup = null;
+        for (int i = 0; i < parts.Length - 1; i++)
+        {
+            var key = parts[i];
+            currentGroup = currentGroup == null 
+                ? FieldGroups.GetValueOrDefault(key)
+                : currentGroup.SubGroups.GetValueOrDefault(key);
+
+            if (currentGroup == null) return null;
+        }
+
+        var lastPart = parts[^1];
+        if (currentGroup != null)
+        {
+            if (currentGroup.Fields.TryGetValue(lastPart, out var field))
+                return field.Value;
+        }
+
+        return Fields.TryGetValue(lastPart, out var topField) ? topField.Value : null;
     }
 
     public virtual T GetFieldValue<T>(string fieldPath)
     {
-        throw new System.NotImplementedException();
+        var val = GetFieldValue(fieldPath);
+        if (val == null) return default!;
+        return (T)Convert.ChangeType(val, typeof(T));
     }
 
     public virtual string GetFieldValueAsString(string fieldPath)
     {
-        throw new System.NotImplementedException();
+        var val = GetFieldValue(fieldPath);
+        return val?.ToString() ?? string.Empty;
     }
-    
-    public virtual string SetFieldValue(string fieldPath, object value)
+
+    public virtual void SetFieldValue(string fieldPath, object value)
     {
-        throw new System.NotImplementedException();
+        if (string.IsNullOrEmpty(fieldPath)) return;
+
+        var parts = fieldPath.Split('.');
+        if (parts.Length == 1)
+        {
+            if (Fields.ContainsKey(parts[0]))
+                Fields[parts[0]].Value = value;
+            return;
+        }
+
+        SzFieldGroup? currentGroup = null;
+        for (int i = 0; i < parts.Length - 1; i++)
+        {
+            var key = parts[i];
+            currentGroup = currentGroup == null 
+                ? FieldGroups.GetValueOrDefault(key)
+                : currentGroup.SubGroups.GetValueOrDefault(key);
+
+            if (currentGroup == null) return;
+        }
+
+        var lastPart = parts[^1];
+        if (currentGroup != null)
+        {
+            if (currentGroup.Fields.ContainsKey(lastPart))
+                currentGroup.Fields[lastPart].Value = value;
+        }
+        else if (Fields.ContainsKey(lastPart))
+        {
+            Fields[lastPart].Value = value;
+        }
     }
 }