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use serde::{Serialize, de::DeserializeOwned};
use tcp_connection::{error::TcpTargetError, instance::ConnectionInstance};
use tokio::net::TcpStream;
pub trait Action<Args, Return>
where
Args: Serialize + DeserializeOwned + Send,
Return: Serialize + DeserializeOwned + Send,
{
fn action_name() -> &'static str;
fn is_remote_action() -> bool;
fn process(
context: ActionContext,
args: Args,
) -> impl std::future::Future<Output = Result<Return, TcpTargetError>> + Send;
}
#[derive(Default)]
pub struct ActionContext {
/// Whether the action is executed locally or remotely
local: bool,
/// The name of the action being executed
action_name: String,
/// The JSON-serialized arguments for the action
action_args_json: String,
/// The connection instance in the current context,
/// used to interact with the machine on the other end
instance: Option<ConnectionInstance>,
}
impl ActionContext {
/// Generate local context
pub fn local() -> Self {
let mut ctx = ActionContext::default();
ctx.local = true;
ctx
}
/// Generate remote context
pub fn remote() -> Self {
let mut ctx = ActionContext::default();
ctx.local = false;
ctx
}
/// Build connection instance from TcpStream
pub fn build_instance(mut self, stream: TcpStream) -> Self {
self.instance = Some(ConnectionInstance::from(stream));
self
}
/// Insert connection instance into context
pub fn insert_instance(mut self, instance: ConnectionInstance) -> Self {
self.instance = Some(instance);
self
}
/// Pop connection instance from context
pub fn pop_instance(&mut self) -> Option<ConnectionInstance> {
self.instance.take()
}
}
impl ActionContext {
/// Whether the action is executed locally
pub fn is_local(&self) -> bool {
self.local
}
/// Whether the action is executed remotely
pub fn is_remote(&self) -> bool {
!self.local
}
/// Get the connection instance in the current context
pub fn instance(&self) -> &Option<ConnectionInstance> {
&self.instance
}
/// Get a mutable reference to the connection instance in the current context
pub fn instance_mut(&mut self) -> &mut Option<ConnectionInstance> {
&mut self.instance
}
/// Get the action name from the context
pub fn action_name(&self) -> &str {
&self.action_name
}
/// Get the action arguments from the context
pub fn action_args_json(&self) -> &String {
&self.action_args_json
}
/// Set the action name in the context
pub fn set_action_name(mut self, action_name: String) -> Self {
self.action_name = action_name;
self
}
/// Set the action arguments in the context
pub fn set_action_args_json(mut self, action_args: String) -> Self {
self.action_args_json = action_args;
self
}
}
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