client: implements event/updates websocket

kordophone/src/model/event.rs

@@ -0,0 +1,17 @@
+use crate::model::{Conversation, Message, UpdateItem};
+
+#[derive(Debug, Clone)]
+pub enum Event {
+    ConversationChanged(Conversation),
+    MessageReceived(Conversation, Message),
+}
+
+impl From<UpdateItem> for Event {
+    fn from(update: UpdateItem) -> Self {
+        match update {
+            UpdateItem { conversation: Some(conversation), message: None, .. } => Event::ConversationChanged(conversation),
+            UpdateItem { conversation: Some(conversation), message: Some(message), .. } => Event::MessageReceived(conversation, message),
+            _ => panic!("Invalid update item: {:?}", update),
+        }
+    }
+}

kordophone/src/model/mod.rs

@@ -1,5 +1,7 @@
 pub mod conversation;
+pub mod event;
 pub mod message;
+pub mod update;
 
 pub use conversation::Conversation;
 pub use conversation::ConversationID;
@@ -7,6 +9,10 @@ pub use conversation::ConversationID;
 pub use message::Message;
 pub use message::MessageID;
 
+pub use update::UpdateItem;
+
+pub use event::Event;
+
 pub mod jwt;
 pub use jwt::JwtToken;
 

kordophone/src/model/update.rs

@@ -0,0 +1,21 @@
+use serde::Deserialize;
+use super::conversation::Conversation;
+use super::message::Message;
+
+#[derive(Debug, Clone, Deserialize)]
+pub struct UpdateItem {
+    #[serde(rename = "messageSequenceNumber")]
+    pub seq: u64,
+
+    #[serde(rename = "conversation")]
+    pub conversation: Option<Conversation>,
+
+    #[serde(rename = "message")]
+    pub message: Option<Message>,
+}
+
+impl Default for UpdateItem {
+    fn default() -> Self {
+        Self { seq: 0, conversation: None, message: None }
+    }
+}