Added generic action callback

src/action_callback.rs

@@ -0,0 +1,39 @@
+use std::marker::PhantomData;
+
+use mlua::{FromLua, IntoLua};
+
+#[derive(Debug, Clone)]
+pub struct ActionCallback<T> {
+    uuid: uuid::Uuid,
+    lua: mlua::Lua,
+    phantom: PhantomData<T>,
+}
+
+impl<T> FromLua for ActionCallback<T> {
+    fn from_lua(value: mlua::Value, lua: &mlua::Lua) -> mlua::Result<Self> {
+        let uuid = uuid::Uuid::new_v4();
+        lua.set_named_registry_value(&uuid.to_string(), value)?;
+
+        Ok(ActionCallback {
+            uuid,
+            lua: lua.clone(),
+            phantom: PhantomData::<T>,
+        })
+    }
+}
+
+// TODO: Return proper error here
+impl<T> ActionCallback<T>
+where
+    T: IntoLua + Sync + Send + Clone + Copy + 'static,
+{
+    pub async fn call(&self, state: T) {
+        let uuid = self.uuid;
+
+        let callback: mlua::Value = self.lua.named_registry_value(&uuid.to_string()).unwrap();
+        match callback {
+            mlua::Value::Function(f) => f.call_async::<()>(state).await.unwrap(),
+            _ => todo!("Only functions are currently supported"),
+        }
+    }
+}

src/lib.rs

@@ -2,6 +2,7 @@
 #![feature(specialization)]
 #![feature(let_chains)]
 
+pub mod action_callback;
 pub mod auth;
 pub mod config;
 pub mod device_manager;