Rewrite according to feedback

CHANGELOG.md

@@ -4,10 +4,9 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [3.0.0] - TBD
+## [2.10.0] - TBD
 ### Changed
-- Add Context.MessageId support for RichMessages
-- RichMessage model is now an abstract class instead of an interface for Context.MessageId (breaking)
+- Add Context.MessageId on RichMessages supporting WhatsApp for referencing a previous message
 - Updated `System.Text.Json` to 8.0.5 fixing a [high impact security vulnerability](https://github.com/advisories/GHSA-hh2w-p6rv-4g7w)
 
 ## [2.9.0] - 2024-06-20

CM.Text/BusinessMessaging/Model/MultiChannel/ContactMessage.cs

@@ -18,6 +18,13 @@ public class ContactMessage : IRichMessage
         /// </summary>
         [JsonPropertyName("contacts")]
         public Contact[] Contacts { get; set; }
+
+        /// <summary>
+        /// Contextual properties of the message
+        /// </summary>
+        [JsonPropertyName("context")]
+        [CanBeNull]
+        public MessageContext MessageContext { get; set; }
     }
 
     /// <summary>

CM.Text/BusinessMessaging/Model/MultiChannel/LocationPushMessage.cs

@@ -15,5 +15,12 @@ public class LocationPushMessage : IRichMessage
         /// </summary>
         [JsonPropertyName("location")]
         public ViewLocationOptions Location { get; set; }
+
+        /// <summary>
+        /// Contextual properties of the message. Only applicable to <see cref="Channel.WhatsApp"/>
+        /// </summary>
+        [JsonPropertyName("context")]
+        [CanBeNull]
+        public MessageContext MessageContext { get; set; }
     }
 }

CM.Text/BusinessMessaging/Model/MultiChannel/MediaMessage.cs

@@ -33,5 +33,12 @@ public MediaMessage(string mediaName, string mediaUri, string mimeType)
         /// </summary>
         [JsonPropertyName("media")]
         public MediaContent Media { get; set; }
+
+        /// <summary>
+        /// Contextual properties of the message. Only applicable to <see cref="Channel.WhatsApp"/>
+        /// </summary>
+        [JsonPropertyName("context")]
+        [CanBeNull]
+        public MessageContext MessageContext { get; set; }
     }
 }

CM.Text/BusinessMessaging/Model/MultiChannel/MessageContext.cs

@@ -0,0 +1,19 @@
+using System.Text.Json.Serialization;
+using JetBrains.Annotations;
+
+namespace CM.Text.BusinessMessaging.Model.MultiChannel
+{
+    /// <summary>
+    /// Contextual properties of the message. Currently only applicable to <see cref="Channel.WhatsApp" />
+    /// Docs: https://developers.cm.com/messaging/docs/whatsapp-inbound#mt-replies-mo
+    /// </summary>
+    public class MessageContext
+    {
+        /// <summary>
+        /// Message ID to which the current message is a reply
+        /// </summary>
+        [JsonPropertyName("message_id")]
+        [CanBeNull]
+        public string MessageId { get; set; }
+    }
+}

CM.Text/BusinessMessaging/Model/MultiChannel/TemplateMessage.cs

@@ -17,5 +17,12 @@ public class TemplateMessage : IRichMessage
         /// </remarks>
         [JsonPropertyName("template")]
         public TemplateMessageContent Content { get; set; }
+
+        /// <summary>
+        /// Contextual properties of the message
+        /// </summary>
+        [JsonPropertyName("context")]
+        [CanBeNull]
+        public MessageContext MessageContext { get; set; }
     }
 }

CM.Text/BusinessMessaging/Model/MultiChannel/TextMessage.cs

@@ -44,5 +44,12 @@ public TextMessage(string text)
         /// </summary>
         [JsonPropertyName("suggestions")]
         public SuggestionBase[] Suggestions { get; set; }
+
+        /// <summary>
+        /// Contextual properties of the message. Currently only applicable to <see cref="Channel.WhatsApp" />
+        /// </summary>
+        [JsonPropertyName("context")]
+        [CanBeNull]
+        public MessageContext MessageContext { get; set; }
     }
 }

CM.Text/BusinessMessaging/Model/MultiChannel/WhatsAppInteractiveMessage.cs

@@ -16,6 +16,13 @@ public class WhatsAppInteractiveMessage : IRichMessage
         /// </summary>
         [JsonPropertyName("interactive")]
         public WhatsAppInteractiveContent whatsAppInteractiveContent { get; set; }
+
+        /// <summary>
+        /// Contextual properties of the message
+        /// </summary>
+        [JsonPropertyName("context")]
+        [CanBeNull]
+        public MessageContext MessageContext { get; set; }
     }
 
     /// <summary>