implement appcenter and minor fix

src/AppCenterSDK/Models/Serialization/LogJsonConverter.cs

@@ -0,0 +1,60 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+using System.Reflection;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Linq;
+
+namespace YaeAchievement.AppCenterSDK.Models.Serialization;
+
+#pragma warning disable CS8604, CS8765
+public class LogJsonConverter : JsonConverter {
+    
+    private readonly Dictionary<string, Type> _logTypes = new ();
+    private readonly object _jsonConverterLock = new ();
+    private static readonly JsonSerializerSettings SerializationSettings;
+
+    static LogJsonConverter() {
+        SerializationSettings = new JsonSerializerSettings {
+            Formatting = Formatting.None,
+            NullValueHandling = NullValueHandling.Ignore,
+            DateFormatHandling = DateFormatHandling.IsoDateFormat,
+            DateTimeZoneHandling = DateTimeZoneHandling.Utc,
+            ReferenceLoopHandling = ReferenceLoopHandling.Serialize
+        };
+    }
+
+    public void AddLogType(string typeName, Type type) {
+        lock (_jsonConverterLock) {
+            _logTypes[typeName] = type;
+        }
+    }
+
+    public override bool CanConvert(Type objectType) {
+        return typeof(Log).IsAssignableFrom(objectType);
+    }
+
+    public override object? ReadJson(JsonReader reader, Type t, object o, JsonSerializer s) {
+        Type logType;
+        var jsonObject = JObject.Load(reader);
+        var typeName = jsonObject.GetValue("type")?.ToString();
+        lock (_jsonConverterLock) {
+            if (typeName == null || !_logTypes.ContainsKey(typeName)) {
+                throw new JsonReaderException("Could not identify type of log");
+            }
+            logType = _logTypes[typeName];
+            jsonObject.Remove("type");
+        }
+        return jsonObject.ToObject(logType);
+    }
+
+    public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer) {
+        var info = value.GetType().GetTypeInfo();
+        if (info.GetCustomAttribute(typeof(JsonObjectAttribute)) is not JsonObjectAttribute attribute) {
+            throw new JsonWriterException("Log type is missing JsonObjectAttribute");
+        }
+        var jsonObject = JObject.FromObject(value, JsonSerializer.CreateDefault(SerializationSettings));
+        jsonObject.Add("type", JToken.FromObject(attribute.Id));
+        writer.WriteRawValue(jsonObject.ToString(Formatting.None));
+    }
+}