1 files changed, 10 insertions, 5 deletions
diff --git a/src/message/history.rs b/src/message/history.rs
index d4d4500..2abdf2c 100644
--- a/src/message/history.rs
+++ b/src/message/history.rs
@@ -1,7 +1,7 @@
 use itertools::Itertools as _;
 
 use super::{
-    Id, Message,
+    Message,
     event::{Deleted, Event, Sent},
 };
 use crate::event::Sequence;
@@ -13,10 +13,6 @@ pub struct History {
 
 // State interface
 impl History {
-    pub fn id(&self) -> &Id {
-        &self.message.id
-    }
-
     // Snapshot of this message as it was when sent. (Note to the future: it's okay
     // if this returns a redacted or modified version of the message. If we
     // implement message editing by redacting the original body, then this should
@@ -26,6 +22,15 @@ impl History {
         self.message.clone()
     }
 
+    pub fn as_of<S>(&self, sequence: S) -> Option<Message>
+    where
+        S: Into<Sequence>,
+    {
+        self.events()
+            .filter(Sequence::up_to(sequence.into()))
+            .collect()
+    }
+
     // Snapshot of this message as of all events recorded in this history.
     pub fn as_snapshot(&self) -> Option<Message> {
         self.events().collect()