Add last_message for DMs.

src/database/channel.rs

@@ -1,5 +1,12 @@
 use serde::{Deserialize, Serialize};
 
+#[derive(Serialize, Deserialize, Debug, Clone)]
+pub struct LastMessage {
+    id: String,
+    user_id: String,
+    short_content: String,
+}
+
 #[derive(Serialize, Deserialize, Debug)]
 pub struct Channel {
     #[serde(rename = "_id")]
@@ -7,12 +14,11 @@ pub struct Channel {
     #[serde(rename = "type")]
     pub channel_type: u8,
 
-    pub last_message: Option<String>,
-
     // for Direct Messages
     pub active: Option<bool>,
 
     // for DMs / GDMs
+    pub last_message: Option<LastMessage>,
     pub recipients: Option<Vec<String>>,
 
     // for GDMs