Get parsing working, and HTML generation from resulting objects

Models/ParsedContent.cs

@@ -6,10 +6,28 @@ using System.Web;
 
 namespace QuestReader.Models.ParsedContent;
 
-public class ParsedContent
+[JsonConverter(typeof(ContentConverter))]
+public abstract class ContentNode
+{
+    public string Type { get => GetType().Name.Replace("Node", ""); }
+}
+
+public abstract class ContainerNode : ContentNode
 {
-    public Version Version { get; set; }
     public IList<ContentNode> Nodes { get; set; }
+
+    public override string ToString() => $"{Type} [ {string.Join(",\n", Nodes)} ]";
+
+    public IEnumerable<int> GetReferences()
+    {
+        return Nodes.SelectMany(n =>
+            n is ContainerNode container
+                ? container.GetReferences()
+                : (
+                    n is ReferenceNode @ref ? new List<int> { @ref.PostId ?? @ref.ThreadId } : Array.Empty<int>()
+                )
+        );
+    }
 }
 
 class ContentConverter : JsonConverter<ContentNode>
@@ -28,54 +46,42 @@ class ContentConverter : JsonConverter<ContentNode>
         ContentNode value,
         JsonSerializerOptions options)
     {
-        switch (value)
-        {
+        switch (value) {
             case null:
                 JsonSerializer.Serialize(writer, null as ContentNode, options);
                 break;
+            case TextNode textNode:
+                JsonSerializer.Serialize(writer, textNode.Text, options);
+                break;
             default:
-                {
-                    if (value is RootNode)
-                        throw new InvalidDataContractException("RootNode must not be used");
-                    var type = value.GetType();
-
-                    JsonSerializer.Serialize(writer, value, type, options);
-                    break;
-                }
-        }
+                var type = value.GetType();
+                JsonSerializer.Serialize(writer, value, type, options);
+                break;
+        };
     }
 }
 
-[JsonConverter(typeof(ContentConverter))]
-public abstract class ContentNode
+public class RootNode : ContainerNode
 {
-    public string Type { get => GetType().Name.Replace("Node", ""); }
-
-    public virtual string Render(TemplateModel model)
-    {
-        throw new NotImplementedException("Rendering is not supported for this node type");
-    }
+    public Version Version { get; set; }
 }
 
 public class TextNode : ContentNode
 {
     public string Text { get; set; }
 
-    public override string ToString() => $"\"{Text}\"";
-
-    public override string Render(TemplateModel model) => HttpUtility.HtmlEncode(Text);
+    public override string ToString() => $"{Text}";
 }
 
 public class NewlineNode : ContentNode
 {
-    public override string ToString() => $"<br>";
-
-    public override string Render(TemplateModel model) => "<br>";
+    public override string ToString() => $"\n";
 }
 
+
 public class ReferenceNode : ContentNode
 {
-    public int PostId { get; set; }
+    public int? PostId { get; set; }
     public int ThreadId { get; set; }
     public ReferenceType ReferenceType { get; set; }
     public bool LongReference { get; set; }
@@ -88,20 +94,11 @@ public enum ReferenceType
     QuestDiscussion
 }
 
-public abstract class ContainerNode : ContentNode
+public class YoutubeEmbedNode : ContentNode
 {
-    public IList<ContentNode> Nodes { get; set; }
-
-    public override string ToString() => $"{Type} [ {string.Join(",\n", Nodes)} ]";
-}
-
-// A temporary container to recursively parse everything of a note before bailing and MUST NOT BE USED NORMALLY
-public class RootNode : ContainerNode
-{
-    public override string ToString() => throw new InvalidDataContractException("RootNode must not be used");
-
-    public override string Render(TemplateModel model) => throw new InvalidDataContractException("RootNode must not be used");
-}
+    /// <remarks>Todo: Make this a URL</remarks>
+    public string VideoLink { get; set; }
+};
 
 public class QuoteNode : ContainerNode { };
 
@@ -117,7 +114,15 @@ public class InlineCodeNode : ContainerNode { };
 
 public class UnderlineNode : ContainerNode { };
 
+public class SmallFontNode : ContainerNode { };
+
+public class ColorNode : ContainerNode
+{
+    public string Color { get; set; }
+};
+
 public class ExternalLinkNode : ContainerNode
 {
+    /// <remarks>Todo: Make this a URL</remarks>
     public string Destination { get; set; }
 }