Adding DateTime parsing checks because Valve's API returns bad dates (such as June 31).

Author: Justin

SourceSchemaParser/Dota2/DotaSchemaItem.cs

@@ -47,6 +47,7 @@ public class DotaSchemaItemPriceInfo
         [JsonProperty("category_tags")]
         public string CategoryTags { get; set; }
 
+        [JsonConverter(typeof(DateTimeJsonConverter))]
         [JsonProperty("date")]
         public DateTime? Date { get; set; }
 

SourceSchemaParser/JsonConverters/DateTimeJsonConverter.cs

@@ -0,0 +1,45 @@
+using Newtonsoft.Json;
+using Newtonsoft.Json.Linq;
+using System;
+
+namespace SourceSchemaParser.JsonConverters
+{
+    /// <summary>
+    /// Had to add a JsonConverter specifically for DateTimes to handle DateTimes that aren't valid. Valve doesn't do checks on their dates apparently since I've seen schemas with June 31 in them.
+    /// </summary>
+    public class DateTimeJsonConverter : JsonConverter
+    {
+        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
+        {
+            throw new NotImplementedException();
+        }
+
+        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
+        {
+            if (reader.TokenType == JsonToken.Null)
+            {
+                return null;
+            }
+
+            JValue token = (JValue)JToken.Load(reader);
+
+            DateTime dateTime = DateTime.Now;
+            bool success = DateTime.TryParse(token.Value.ToString(), out dateTime);
+            if (success)
+            {
+                return dateTime;
+            }
+            else
+            {
+                return null;
+            }
+        }
+
+        public override bool CanWrite { get { return false; } }
+
+        public override bool CanConvert(Type objectType)
+        {
+            return typeof(DateTime).IsAssignableFrom(objectType);
+        }
+    }
+}

SourceSchemaParser/SchemaItem.cs

@@ -30,6 +30,7 @@ public class SchemaItem
         [JsonProperty("creation_date")]
         public DateTime? CreationDate { get; set; }
 
+        [JsonConverter(typeof(DateTimeJsonConverter))]
         [JsonProperty("expiration_date")]
         public DateTime? ExpirationDate { get; set; }
     }

SourceSchemaParser/SourceSchemaParser.csproj

@@ -60,6 +60,7 @@
     <Compile Include="DOTA2\DotaSchemaContainer.cs" />
     <Compile Include="DOTA2\DotaSchemaItemAutograph.cs" />
     <Compile Include="DOTA2\DotaSchemaItemSet.cs" />
+    <Compile Include="JsonConverters\DateTimeJsonConverter.cs" />
     <Compile Include="JsonConverters\DotaSchemaItemCreationDateJsonConverter.cs" />
     <Compile Include="JsonConverters\DotaSchemaItemSetItemsJsonConverter.cs" />
     <Compile Include="JsonConverters\DotaSchemaItemSetJsonConverter.cs" />