Fix texture stuff

Zennysoft.Game.Godot.Implementation/Save/SaveFileManager.cs

@@ -0,0 +1,70 @@
+using Chickensoft.Collections;
+using Chickensoft.Serialization.Godot;
+using Chickensoft.Serialization;
+using Godot;
+using System.IO.Abstractions;
+using System.Text.Json;
+using System.Text.Json.Serialization.Metadata;
+using Zennysoft.Game.Abstractions;
+
+namespace Zennysoft.Game.Implementation;
+
+public class SaveFileManager<T> : ISaveFileManager<T>
+{
+  private readonly IFileSystem _fileSystem;
+  private readonly JsonSerializerOptions _jsonOptions;
+  private string _defaultSaveLocation;
+  public const string DEFAULT_SAVE_FILE_NAME = "game.json";
+
+  public SaveFileManager(IFileSystem fileSystem)
+  {
+    _fileSystem = fileSystem;
+    _defaultSaveLocation = _fileSystem.Path.Join(OS.GetUserDataDir(), DEFAULT_SAVE_FILE_NAME);
+
+    GodotSerialization.Setup();
+    Serializer.AddConverter(new Texture2DConverter());
+
+    var upgradeDependencies = new Blackboard();
+
+    _jsonOptions = new JsonSerializerOptions
+    {
+      Converters = {
+        new SerializableTypeConverter(upgradeDependencies)
+      },
+      WriteIndented = true
+    };
+  }
+
+
+  public Task<T?> ReadFromFile(params IJsonTypeInfoResolver?[] resolvers)
+  {
+    if (!_fileSystem.File.Exists(_defaultSaveLocation))
+      throw new FileNotFoundException();
+    return ReadFromFile(_defaultSaveLocation, resolvers);
+  }
+
+  public async Task<T?> ReadFromFile(string filePath, params IJsonTypeInfoResolver?[] resolvers)
+  {
+    if (!_fileSystem.File.Exists(filePath))
+      throw new FileNotFoundException();
+
+    var json = await _fileSystem.File.ReadAllTextAsync(filePath);
+
+    var resolver = new SerializableTypeResolver();
+    _jsonOptions.TypeInfoResolver = JsonTypeInfoResolver.Combine([resolver, .. resolvers]);
+    return JsonSerializer.Deserialize<T?>(json, _jsonOptions);
+  }
+
+  public Task WriteToFile(T gameData, params IJsonTypeInfoResolver?[] resolvers)
+  {
+    return WriteToFile(gameData, _defaultSaveLocation, resolvers);
+  }
+
+  public async Task WriteToFile(T gameData, string filePath, params IJsonTypeInfoResolver?[] resolvers)
+  {
+    var resolver = new SerializableTypeResolver();
+    _jsonOptions.TypeInfoResolver = JsonTypeInfoResolver.Combine([resolver, .. resolvers]);
+    var json = JsonSerializer.Serialize(gameData, _jsonOptions);
+    await _fileSystem.File.WriteAllTextAsync(filePath, json);
+  }
+}