From dc9ad9028b58597cee87eef2f6647e7149cfc278 Mon Sep 17 00:00:00 2001
From: 魏曹先生 <1992414357@qq.com>
Date: Mon, 6 Oct 2025 02:01:04 +0800
Subject: Add service module with macros and action framework

- Create new vcs_service crate for handling service actions
- Add vcs_service_macros crate for procedural macros
- Add vcs_test module with action framework integration
- Implement Action and ActionPool traits for service operations
---
 crates/service/src/action_pool.rs | 108 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 108 insertions(+)
 create mode 100644 crates/service/src/action_pool.rs

(limited to 'crates/service/src/action_pool.rs')

diff --git a/crates/service/src/action_pool.rs b/crates/service/src/action_pool.rs
new file mode 100644
index 0000000..0a1a6c7
--- /dev/null
+++ b/crates/service/src/action_pool.rs
@@ -0,0 +1,108 @@
+use tcp_connection::error::TcpTargetError;
+
+use crate::action::{Action, ActionContext};
+
+/// A pool of registered actions that can be processed by name
+pub struct ActionPool {
+    /// HashMap storing action name to action implementation mapping
+    actions: std::collections::HashMap<&'static str, Box<dyn ActionErased>>,
+}
+
+impl ActionPool {
+    /// Creates a new empty ActionPool
+    pub fn new() -> Self {
+        Self {
+            actions: std::collections::HashMap::new(),
+        }
+    }
+
+    /// Registers an action type with the pool
+    ///
+    /// Usage:
+    /// ```
+    /// action_pool.register::<MyAction, MyArgs, MyReturn>();
+    /// ```
+    pub fn register<A, Args, Return>(&mut self)
+    where
+        A: Action<Args, Return> + Send + Sync + 'static,
+        Args: serde::de::DeserializeOwned + Send + Sync + 'static,
+        Return: serde::Serialize + Send + Sync + 'static,
+    {
+        let action_name = A::action_name();
+        self.actions.insert(
+            action_name,
+            Box::new(ActionWrapper::<A, Args, Return>(std::marker::PhantomData)),
+        );
+    }
+
+    /// Processes an action by name with given context and arguments
+    ///
+    /// Usage:
+    /// ```
+    /// let result = action_pool.process::<MyArgs, MyReturn>("my_action", context, args).await?;
+    /// ```
+    pub async fn process<'a, Args, Return>(
+        &'a self,
+        action_name: &'a str,
+        context: ActionContext,
+        args: Args,
+    ) -> Result<Return, TcpTargetError>
+    where
+        Args: serde::de::DeserializeOwned + Send + 'static,
+        Return: serde::Serialize + Send + 'static,
+    {
+        if let Some(action) = self.actions.get(action_name) {
+            let result = action.process_erased(context, Box::new(args)).await?;
+            let result = *result
+                .downcast::<Return>()
+                .map_err(|_| TcpTargetError::Unsupported("InvalidArguments".to_string()))?;
+            Ok(result)
+        } else {
+            Err(TcpTargetError::Unsupported("InvalidAction".to_string()))
+        }
+    }
+}
+
+/// Trait for type-erased actions that can be stored in ActionPool
+trait ActionErased: Send + Sync {
+    /// Processes the action with type-erased arguments and returns type-erased result
+    fn process_erased(
+        &self,
+        context: ActionContext,
+        args: Box<dyn std::any::Any + Send>,
+    ) -> std::pin::Pin<
+        Box<
+            dyn std::future::Future<Output = Result<Box<dyn std::any::Any + Send>, TcpTargetError>>
+                + Send,
+        >,
+    >;
+}
+
+/// Wrapper struct that implements ActionErased for concrete Action types
+struct ActionWrapper<A, Args, Return>(std::marker::PhantomData<(A, Args, Return)>);
+
+impl<A, Args, Return> ActionErased for ActionWrapper<A, Args, Return>
+where
+    A: Action<Args, Return> + Send + Sync,
+    Args: serde::de::DeserializeOwned + Send + Sync + 'static,
+    Return: serde::Serialize + Send + Sync + 'static,
+{
+    fn process_erased(
+        &self,
+        context: ActionContext,
+        args: Box<dyn std::any::Any + Send>,
+    ) -> std::pin::Pin<
+        Box<
+            dyn std::future::Future<Output = Result<Box<dyn std::any::Any + Send>, TcpTargetError>>
+                + Send,
+        >,
+    > {
+        Box::pin(async move {
+            let args = *args
+                .downcast::<Args>()
+                .map_err(|_| TcpTargetError::Unsupported("InvalidArguments".to_string()))?;
+            let result = A::process(context, args).await?;
+            Ok(Box::new(result) as Box<dyn std::any::Any + Send>)
+        })
+    }
+}
-- 
cgit