From efef543200bfcf5f7ec43d84a5ed8c8c6eaa5923 Mon Sep 17 00:00:00 2001
From: Paul Butler <paul@driftingin.space>
Date: Sun, 5 May 2024 12:22:54 -0400
Subject: [PATCH] Add default factory

---
 stateroom/src/lib.rs | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/stateroom/src/lib.rs b/stateroom/src/lib.rs
index c42b083..ecfd051 100644
--- a/stateroom/src/lib.rs
+++ b/stateroom/src/lib.rs
@@ -63,7 +63,7 @@
 //!     }
 //! }
 
-use std::sync::Arc;
+use std::{convert::Infallible, sync::Arc};
 
 pub use client_id::ClientId;
 pub use message_recipient::MessageRecipient;
@@ -137,3 +137,20 @@ pub trait StateroomServiceFactory: Send + Sync + 'static {
         context: Arc<impl StateroomContext>,
     ) -> Result<Self::Service, Self::Error>;
 }
+
+pub struct DefaultStateroomFactory<T: StateroomService + Default> {
+    _marker: std::marker::PhantomData<T>,
+}
+
+impl<T: StateroomService + Default> StateroomServiceFactory for DefaultStateroomFactory<T> {
+    type Service = T;
+    type Error = Infallible;
+
+    fn build(
+        &self,
+        _: &str,
+        _: Arc<impl StateroomContext>,
+    ) -> Result<Self::Service, Self::Error> {
+        Ok(T::default())
+    }
+}