Fixed: Handle wonky timestamps from Orpheus

src/NzbDrone.Core/Indexers/Definitions/Gazelle/GazelleApi.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using Newtonsoft.Json;
 
 namespace NzbDrone.Core.Indexers.Gazelle
 {
@@ -59,6 +60,7 @@ namespace NzbDrone.Core.Indexers.Gazelle
         public int TotalSeeders { get; set; }
         public int TotalSnatched { get; set; }
         public long MaxSize { get; set; }
+        [JsonConverter(typeof(GazelleTimestampConverter))]
         public long GroupTime { get; set; }
         public List<GazelleTorrent> Torrents { get; set; }
         public bool IsFreeLeech { get; set; }

src/NzbDrone.Core/Indexers/Definitions/Gazelle/GazelleTimestampConverter.cs

@@ -0,0 +1,41 @@
+using System;
+using Newtonsoft.Json;
+
+namespace NzbDrone.Core.Indexers.Gazelle
+{
+    public class GazelleTimestampConverter : JsonConverter
+    {
+        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
+        {
+            if (value == null)
+            {
+                writer.WriteNull();
+            }
+            else
+            {
+                writer.WriteValue(value);
+            }
+        }
+
+        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
+        {
+            if (objectType == typeof(long))
+            {
+                return Convert.ToInt64(reader.Value);
+            }
+
+            if (objectType == typeof(string))
+            {
+                var date = DateTimeOffset.Parse(reader.Value.ToString());
+                return date.ToUnixTimeSeconds();
+            }
+
+            throw new JsonSerializationException("Can't convert type " + existingValue.GetType().FullName + " to timestamp");
+        }
+
+        public override bool CanConvert(Type objectType)
+        {
+            return objectType == typeof(long) || objectType == typeof(string);
+        }
+    }
+}