Added ElementUpdateStrategy, renamed SetElement message to UpdateElement. Fixes #12

ubisync-lib/src/messages/mod.rs

@@ -24,7 +24,7 @@ pub enum MessageContent {
         content: ElementContent,
         pot: PotId,
     },
-    SetElement {
+    UpdateElement {
         id: ElementId,
         content: ElementContent,
     },

ubisync-lib/src/types/element.rs

@@ -8,17 +8,19 @@ pub struct Element {
     pub id: ElementId,
     pub pot: Option<PotId>,
     pub content: ElementContent,
+    pub update_strategy: ElementUpdateStrategy,
     pub latest_message: Option<MessageId>,
     pub local_changes: bool,
 }
 
 impl Element {
-    pub fn new(id: ElementId, content: ElementContent) -> Self {
+    pub fn new(id: ElementId, content: ElementContent, update_strategy: ElementUpdateStrategy) -> Self {
         // A new element with no latest message must have local changes
         Element {
             id: id,
             pot: None,
             content,
+            update_strategy,
             latest_message: None,
             local_changes: true,
         }
@@ -40,3 +42,10 @@ impl Element {
         self.local_changes
     }
 }
+
+
+
+#[derive(Serialize, Deserialize, Clone, Debug, PartialEq)]
+pub enum ElementUpdateStrategy {
+    Overwrite
+}

ubisync/src/comm/message_processor.rs

@@ -25,7 +25,7 @@ pub fn handle(state: &CommState, peer: &PeerId, message: Message) {
                 )
                 .expect("State failed");
         }
-        MessageContent::SetElement { id, content } => {
+        MessageContent::UpdateElement { id, content } => {
             state
                 .update_element_content(id.to_owned(), content.to_owned(), message.id().to_owned())
                 .expect("State failed");

ubisync/src/state/mod.rs

@@ -88,7 +88,7 @@ impl State {
             .inspect(|_| {
                 //TODO: Get all peers interested in the element, e.g. because they subscribe to the element's pot, a share, etc.
                 self.send_to_peers(
-                    MessageContent::SetElement {
+                    MessageContent::UpdateElement {
                         id: element_id.clone(),
                         content: content.clone(),
                     },