adding saving to Datapacks and datasets

SessionZero/Data/Datapack.cs

@@ -0,0 +1,59 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using Avalonia.Markup.Xaml.Templates;
+
+namespace SessionZero.Data;
+
+public class Datapack
+{
+    public DatapackMetadata Metadata { get; set; }
+
+    private readonly string _path;
+    private Dictionary<string, Dataset> _datasetLookup = [];
+    private Dictionary<string, SzTemplate> _templateLookup = [];
+    
+
+    public Datapack(string name, string id, string version = "1.0.0", string[]? compatibleSystems = null, string description = "")
+    {
+        Metadata = new()
+        {
+            Name = name,
+            Id = id,
+            Version = version,
+            CompatibleSystems = compatibleSystems,
+            Description = description,
+            Uuid = Guid.NewGuid().ToString()
+        };
+        
+        _path = Path.Combine(AppManager.DatapacksDirectory, Metadata.Id);
+    }
+    
+    public void SavePack()
+    {
+
+        if (!Directory.Exists(_path))
+        {
+            Directory.CreateDirectory(_path);
+            Directory.CreateDirectory($"{_path}/resources");
+            Directory.CreateDirectory($"{_path}/datasets");
+            Directory.CreateDirectory($"{_path}/templates");
+        }
+
+        if (!File.Exists($"{_path}/datapack.meta"))
+        {
+            File.WriteAllText($"{_path}/datapack.meta", Metadata.ToString());
+        }
+    }
+
+    public void AddDataset(Dataset dataset)
+    {
+        dataset.Save();
+        _datasetLookup.TryAdd(dataset.Metadata.Id, dataset);
+    }
+
+    public void AddTemplate(SzTemplate template)
+    {
+        _templateLookup.TryAdd(template.Id, template);
+    }
+}