re-organze namespace

ModpackUpdater/ModpackInfo.cs

@@ -0,0 +1,58 @@
+using Microsoft.VisualBasic.CompilerServices;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+
+namespace ModpackUpdater;
+
+public class ModpackInfo
+{
+    private const string FILENAME_MODPACKINFO = "modpack-info.json";
+
+    [JsonConverter(typeof(VersionConverter))]
+    public Version Version { get; set; }
+    public string ConfigUrl { get; set; }
+    public string ExtrasKey { get; set; }
+
+    [JsonIgnore]
+    public string LocaLPath { get; private set; }
+    [JsonIgnore]
+    public bool Exists => File.Exists(GetFilePath(LocaLPath));
+
+    public void Save()
+    {
+        File.WriteAllText(Conversions.ToString(GetFilePath(LocaLPath)), JsonConvert.SerializeObject(this));
+    }
+
+    public void Save(string mcRoot)
+    {
+        LocaLPath = mcRoot;
+        Save();
+    }
+
+    public static ModpackInfo TryLoad(string mcRoot)
+    {
+        if (HasModpackInfo(mcRoot))
+            return Load(mcRoot);
+        return new()
+        {
+            LocaLPath = mcRoot
+        };
+    }
+
+    public static ModpackInfo Load(string mcRoot)
+    {
+        var info = JsonConvert.DeserializeObject<ModpackInfo>(File.ReadAllText(GetFilePath(mcRoot)));
+        info.LocaLPath = mcRoot;
+        return info;
+    }
+
+    public static bool HasModpackInfo(string mcRoot)
+    {
+        return File.Exists(Conversions.ToString(GetFilePath(mcRoot)));
+    }
+
+    private static string GetFilePath(string mcRoot)
+    {
+        return Path.Combine(mcRoot, FILENAME_MODPACKINFO);
+    }
+}