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YandexMusic.API/Models/Common/YExecutionContext.cs

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+using YandexMusic.API.Common;
+
+namespace YandexMusic.API.Models.Common
+{
+    public sealed class YExecutionContextConverter : JsonConverter
+    {
+        #region Поля
+
+        private YandexMusicApi api;
+        private AuthStorage storage;
+
+        #endregion Поля
+
+        public override bool CanConvert(Type objectType)
+        {
+            return typeof(YBaseModel).IsAssignableFrom(objectType);
+        }
+
+        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
+        {
+            try
+            {
+                YBaseModel obj = (YBaseModel)Activator.CreateInstance(objectType);
+                serializer.Populate(reader, obj);
+
+                obj.Context = new YExecutionContext
+                {
+                    API = api,
+                    Storage = storage
+                };
+
+                return obj;
+            }
+            catch (Exception ex)
+            {
+                throw new Exception($"Ошибка десериализации типа \"{objectType.Name}\".", ex);
+            }
+        }
+
+        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
+        {
+            throw new NotImplementedException();
+        }
+
+        public YExecutionContextConverter(YandexMusicApi yandex, AuthStorage auth)
+        {
+            api = yandex;
+            storage = auth;
+        }
+    }
+
+    public class YExecutionContext
+    {
+        public YandexMusicApi API { get; internal set; }
+        public AuthStorage Storage { get; internal set; }
+    }
+}