Adding the preview property from the Reddit API post response to the post class (#216)

* Adding the preview property from the Reddit API post response to the post class

* Changing Image class Width and Height properties from int to int?

Author: CSedar21

RedditSharp/Things/Image.cs

@@ -0,0 +1,39 @@
+using Newtonsoft.Json;
+using Newtonsoft.Json.Linq;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace RedditSharp.Things
+{
+    /// <summary>
+    /// Single image for a post.
+    /// </summary>
+    public class Image
+    {
+        public Image(IWebAgent agent, JToken json)
+        {
+        }
+
+        /// <summary>
+        /// Url for the image.
+        /// </summary>
+        [JsonProperty("url")]
+        public Uri Url { get; private set; }
+
+        /// <summary>
+        /// Width of the image.
+        /// </summary>
+        [JsonProperty("width")]
+        public int? Width { get; private set; }
+
+        /// <summary>
+        /// Height of the image.
+        /// </summary>
+        [JsonProperty("height")]
+        public int? Height { get; private set; }
+
+    }
+}

RedditSharp/Things/Images.cs

@@ -0,0 +1,38 @@
+using Newtonsoft.Json;
+using Newtonsoft.Json.Linq;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace RedditSharp.Things
+{
+    /// <summary>
+    /// Post images provided for the post.
+    /// </summary>
+    public class Images
+    {
+        public Images(IWebAgent agent, JToken json)
+        {
+        }
+
+        /// <summary>
+        /// Source image for the post.
+        /// </summary>
+        [JsonProperty("source")]
+        public Image Source { get; private set; }
+
+        /// <summary>
+        /// Different resolutions of the source image for the post.
+        /// </summary>
+        [JsonProperty("resolutions")]
+        public List<Image> Resolutions { get; private set; }
+
+        /// <summary>
+        /// Post preview id.
+        /// </summary>
+        [JsonProperty("id")]
+        public string Id { get; private set; }
+    }
+}

RedditSharp/Things/Post.cs

@@ -97,6 +97,12 @@ public Post(IWebAgent agent, JToken json) : base(agent, json)
         [JsonConverter(typeof(UrlParser))]
         public Uri Thumbnail { get; private set; }
 
+        /// <summary>
+        /// Preview image for the post.
+        /// </summary>
+        [JsonProperty("preview")]
+        public Preview Preview { get; private set; }
+
         /// <summary>
         /// Post title.
         /// </summary>

RedditSharp/Things/Preview.cs

@@ -0,0 +1,32 @@
+using Newtonsoft.Json;
+using Newtonsoft.Json.Linq;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace RedditSharp.Things
+{
+    /// <summary>
+    /// Post preview images.
+    /// </summary>
+    public class Preview
+    {
+        public Preview(IWebAgent agent, JToken json)
+        {
+        }
+
+        /// <summary>
+        /// List of post image in various resolutions.
+        /// </summary>
+        [JsonProperty("images")]
+        public List<Images> Images { get; private set; }
+
+        /// <summary>
+        /// Is there a preview enabled for this post.
+        /// </summary>
+        [JsonProperty("enabled")]
+        public bool Enabled { get; private set; }
+    }
+}