chore: fmt

Signed-off-by: kjuulh <contact@kjuulh.io>

crates/churn-server/src/event.rs

@@ -1,14 +1,10 @@
-
-
 use std::sync::Arc;
 
 use axum::async_trait;
 
-use churn_domain::{LogEvent};
+use churn_domain::LogEvent;
 use itertools::Itertools;
 
-
-
 use churn_capnp::CapnpPackExt;
 
 use crate::db::Db;
@@ -52,6 +48,7 @@ pub trait EventServiceTrait {
     async fn append(&self, req: LogEvent) -> anyhow::Result<()>;
     async fn get_from_cursor(&self, cursor: uuid::Uuid) -> anyhow::Result<Vec<LogEvent>>;
     async fn get_from_beginning(&self) -> anyhow::Result<Vec<LogEvent>>;
+    async fn get_latest_cursor(&self) -> anyhow::Result<uuid::Uuid>;
 }
 
 #[async_trait]
@@ -93,4 +90,25 @@ impl EventServiceTrait for DefaultEventService {
 
         Ok(events)
     }
+
+    async fn get_latest_cursor(&self) -> anyhow::Result<uuid::Uuid> {
+        let events = self.db.get_all("events_log").await?;
+
+        let event = events
+            .iter()
+            .flat_map(|e| match LogEvent::deserialize_capnp(e) {
+                Ok(o) => Ok(o),
+                Err(e) => {
+                    tracing::error!("failed to deserialize capnp: {e}");
+                    Err(e)
+                }
+            })
+            .sorted_by_key(|i| i.timestamp)
+            .last();
+
+        match event {
+            Some(x) => Ok(x.id),
+            None => anyhow::bail!("no events found"),
+        }
+    }
 }