Jellyfin.Xtream/Client/Models/Season.cs

@@ -21,8 +21,9 @@ namespace Jellyfin.Xtream.Client.Models;
 
 public class Season
 {
+    [JsonConverter(typeof(NullStringDateTimeConverter))]
     [JsonProperty("air_date")]
-    public DateTime AirDate { get; set; }
+    public DateTime? AirDate { get; set; }
 
     [JsonProperty("episode_count")]
     public int EpisodeCount { get; set; }

Jellyfin.Xtream/Client/NullStringDateTimeConverter.cs

@@ -0,0 +1,43 @@
+// Copyright (C) 2022  Kevin Jilissen
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+using System;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+
+namespace Jellyfin.Xtream.Client;
+
+/// <summary>
+/// Class NullStringConverter converts the literal string `null` to a null value.
+/// </summary>
+public class NullStringDateTimeConverter : IsoDateTimeConverter
+{
+    /// <inheritdoc />
+    public override bool CanConvert(Type objectType)
+    {
+        return objectType == typeof(string);
+    }
+
+    /// <inheritdoc />
+    public override object? ReadJson(JsonReader reader, Type objectType, object? existingValue, JsonSerializer serializer)
+    {
+        if (reader.Value is string value && value.Equals("null", StringComparison.OrdinalIgnoreCase))
+        {
+            return null;
+        }
+
+        return base.ReadJson(reader, objectType, existingValue, serializer);
+    }
+}