Enorme refactoring de PMO control step 2

pmocontrol/src/queue/mod.rs

@@ -1,7 +1,45 @@
 mod music_queue;
-mod openhome;
 mod backend;
+mod snapshot;
+mod openhome;
 mod interne;
 
-pub  use music_queue::MusicQueue;
-pub use backend::{PlaybackItem, QueueBackend, QueueSnapshot, EnqueueMode};
+use std::sync::{Arc, Mutex};
+
+pub use music_queue::MusicQueue;
+pub use backend::{QueueBackend, EnqueueMode};
+pub use snapshot::{PlaybackItem, QueueSnapshot};
+
+// Internal queue implementations - not part of the public API
+pub(crate) use openhome::OpenHomeQueue;
+pub(crate) use interne::InternalQueue;
+
+use crate::{RendererInfo, errors::ControlPointError};
+
+pub trait QueueFromRendererInfo {
+    fn from_renderer_info(renderer: &RendererInfo) -> Result<Self, ControlPointError>
+    where
+        Self: Sized;
+
+    fn to_backend(self) -> MusicQueue;
+
+    fn build_from_renderer_info(
+        renderer: &RendererInfo,
+    ) -> Result<MusicQueue, ControlPointError>
+    where
+        Self: Sized,
+    {
+        let instance = Self::from_renderer_info(renderer)?;
+        Ok(instance.to_backend())
+    }
+
+    fn make_from_renderer_info(
+        renderer: &RendererInfo,
+    ) -> Result<Arc<Mutex<MusicQueue>>, ControlPointError>
+    where
+        Self: Sized,
+    {
+        let backend = Self::build_from_renderer_info(renderer)?;
+        Ok(Arc::new(Mutex::new(backend)))
+    }
+}