Rename MonitorEvent to MonitorAttestation

The way I see it, an oracle "event" consists of both an "announcement"
and an "attestation". In the case of this message, we want to keep
track of the state of the "attestation", so the rename should make it
unambiguous.

daemon/src/maker_cfd.rs

@@ -590,7 +590,7 @@ impl Actor {
             .with_context(|| format!("Announcement {} not found", cfd.order.oracle_event_id))?;
 
         self.oracle_actor
-            .do_send_async(oracle::MonitorEvent {
+            .do_send_async(oracle::MonitorAttestation {
                 event_id: offer_announcement.id.clone(),
             })
             .await?;
@@ -781,7 +781,7 @@ impl Actor {
             .await?;
 
         self.oracle_actor
-            .do_send_async(oracle::MonitorEvent {
+            .do_send_async(oracle::MonitorAttestation {
                 event_id: announcement.id.clone(),
             })
             .await?;

daemon/src/oracle.rs

@@ -34,7 +34,7 @@ pub struct Sync;
 #[derive(Debug, Clone)]
 pub struct FetchAnnouncement(pub OracleEventId);
 
-pub struct MonitorEvent {
+pub struct MonitorAttestation {
     pub event_id: OracleEventId,
 }
 
@@ -214,8 +214,8 @@ where
 }
 
 #[async_trait]
-impl<CFD: 'static, M: 'static> xtra::Handler<MonitorEvent> for Actor<CFD, M> {
-    async fn handle(&mut self, msg: MonitorEvent, _ctx: &mut xtra::Context<Self>) {
+impl<CFD: 'static, M: 'static> xtra::Handler<MonitorAttestation> for Actor<CFD, M> {
+    async fn handle(&mut self, msg: MonitorAttestation, _ctx: &mut xtra::Context<Self>) {
         if !self.pending_attestations.insert(msg.event_id.clone()) {
             tracing::trace!("Attestation {} already being monitored", msg.event_id);
         }
@@ -320,7 +320,7 @@ where
 impl xtra::Message for Sync {
     type Result = ();
 }
-impl xtra::Message for MonitorEvent {
+impl xtra::Message for MonitorAttestation {
     type Result = ();
 }
 

daemon/src/taker_cfd.rs

@@ -293,7 +293,7 @@ impl Actor {
             .with_context(|| format!("Announcement {} not found", cfd.order.oracle_event_id))?;
 
         self.oracle_actor
-            .do_send_async(oracle::MonitorEvent {
+            .do_send_async(oracle::MonitorAttestation {
                 event_id: offer_announcement.id.clone(),
             })
             .await?;
@@ -402,7 +402,7 @@ impl Actor {
             .with_context(|| format!("Announcement {} not found", oracle_event_id))?;
 
         self.oracle_actor
-            .do_send_async(oracle::MonitorEvent {
+            .do_send_async(oracle::MonitorAttestation {
                 event_id: announcement.id.clone(),
             })
             .await?;