mirror of
https://github.com/hexedtech/codemp.git
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zaaarf
94a7786812
Co-authored-by: alemi <me@alemi.dev> Co-authored-by: frelodev <frelodev@gmail.com>
124 lines
3.9 KiB
Rust
124 lines
3.9 KiB
Rust
//! ### client
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//!
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//! codemp client manager, containing grpc services
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use std::sync::Arc;
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use tokio::sync::mpsc;
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use tonic::service::interceptor::InterceptedService;
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use tonic::service::Interceptor;
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use tonic::transport::{Channel, Endpoint};
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use uuid::Uuid;
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use crate::api::controller::ControllerWorker;
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use crate::cursor::worker::CursorWorker;
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use crate::proto::buffer_service::buffer_client::BufferClient;
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use crate::proto::cursor_service::cursor_client::CursorClient;
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use crate::proto::workspace::{JoinRequest, Token};
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use crate::proto::workspace_service::workspace_client::WorkspaceClient;
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use crate::workspace::Workspace;
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/// codemp client manager
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///
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/// contains all required grpc services and the unique user id
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/// will disconnect when dropped
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/// can be used to interact with server
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pub struct Client {
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user_id: Uuid,
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token_tx: Arc<tokio::sync::watch::Sender<Token>>,
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workspace: Option<Workspace>,
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services: Arc<Services>
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}
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#[derive(Clone)]
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pub(crate) struct ClientInterceptor {
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token: tokio::sync::watch::Receiver<Token>
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}
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impl Interceptor for ClientInterceptor {
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fn call(&mut self, mut request: tonic::Request<()>) -> Result<tonic::Request<()>, tonic::Status> {
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if let Ok(token) = self.token.borrow().token.parse() {
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request.metadata_mut().insert("auth", token);
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}
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Ok(request)
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}
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}
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#[derive(Debug, Clone)]
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pub(crate) struct Services {
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pub(crate) workspace: crate::proto::workspace_service::workspace_client::WorkspaceClient<InterceptedService<Channel, ClientInterceptor>>,
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pub(crate) buffer: crate::proto::buffer_service::buffer_client::BufferClient<InterceptedService<Channel, ClientInterceptor>>,
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pub(crate) cursor: crate::proto::cursor_service::cursor_client::CursorClient<InterceptedService<Channel, ClientInterceptor>>,
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}
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// TODO meno losco
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fn parse_codemp_connection_string<'a>(string: &'a str) -> (String, String) {
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let url = string.replace("codemp://", "");
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let (host, workspace) = url.split_once('/').unwrap();
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(format!("http://{}", host), workspace.to_string())
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}
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impl Client {
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/// instantiate and connect a new client
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pub async fn new(dest: &str) -> crate::Result<Self> { //TODO interceptor
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let (_host, _workspace_id) = parse_codemp_connection_string(dest);
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let channel = Endpoint::from_shared(dest.to_string())?
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.connect()
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.await?;
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let (token_tx, token_rx) = tokio::sync::watch::channel(
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Token { token: "".to_string() }
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);
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let inter = ClientInterceptor { token: token_rx };
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let buffer = BufferClient::with_interceptor(channel.clone(), inter.clone());
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let cursor = CursorClient::with_interceptor(channel.clone(), inter.clone());
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let workspace = WorkspaceClient::with_interceptor(channel.clone(), inter.clone());
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let user_id = uuid::Uuid::new_v4();
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Ok(Client {
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user_id,
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token_tx: Arc::new(token_tx),
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workspace: None,
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services: Arc::new(Services { workspace, buffer, cursor })
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})
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}
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/// join a workspace, starting a cursorcontroller and returning a new reference to it
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///
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/// to interact with such workspace [crate::api::Controller::send] cursor events or
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/// [crate::api::Controller::recv] for events on the associated [crate::cursor::Controller].
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pub async fn join(&mut self, workspace_id: &str) -> crate::Result<()> {
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self.token_tx.send(self.services.workspace.clone().join(
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tonic::Request::new(JoinRequest { username: "".to_string(), password: "".to_string() }) //TODO
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).await?.into_inner())?;
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let (tx, rx) = mpsc::channel(10);
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let stream = self.services.cursor.clone()
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.attach(tokio_stream::wrappers::ReceiverStream::new(rx))
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.await?
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.into_inner();
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let worker = CursorWorker::new(self.user_id.clone());
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let controller = Arc::new(worker.subscribe());
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tokio::spawn(async move {
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tracing::debug!("controller worker started");
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worker.work(tx, stream).await;
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tracing::debug!("controller worker stopped");
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});
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self.workspace = Some(Workspace::new(
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workspace_id.to_string(),
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self.user_id,
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self.token_tx.clone(),
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controller,
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self.services.clone()
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).await?);
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Ok(())
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}
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}
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