Subscriptions working

src/error.rs

@@ -1,4 +1,4 @@
-use crate::usimp::{InputEnvelope, OutputEnvelope};
+use crate::usimp::{InputEnvelope, OutputEnvelope, Event};
 
 use serde_json::{Value, Map};
 use bb8_postgres::tokio_postgres;
@@ -25,6 +25,10 @@ pub enum ErrorKind {
     UsimpError,
     WebSocketError,
     DatabaseError,
+    InvalidSessionError,
+    AuthenticationError,
+    SubscriptionError,
+    InternalError,
 }
 
 impl InputEnvelope {
@@ -64,7 +68,10 @@ impl Error {
             ErrorKind::NotImplemented => "NOT_IMPLEMENTED",
             ErrorKind::UsimpError => "USIMP_ERROR",
             ErrorKind::WebSocketError => "WEBSOCKET_ERROR",
-            ErrorKind::DatabaseError => "BACKEND_ERROR",
+            ErrorKind::DatabaseError | ErrorKind::InternalError => "SERVER_ERROR",
+            ErrorKind::InvalidSessionError => "INVALID_SESSION_ERROR",
+            ErrorKind::AuthenticationError => "AUTHENTICATION_ERROR",
+            ErrorKind::SubscriptionError => "SUBSCRIPTION_ERROR",
         }
     }
 }
@@ -149,3 +156,14 @@ impl From<bb8_postgres::bb8::RunError<tokio_postgres::Error>> for Error {
         }
     }
 }
+
+impl From<tokio::sync::mpsc::error::SendError<Event>> for Error {
+    fn from(error: tokio::sync::mpsc::error::SendError<Event>) -> Self {
+        Error {
+            kind: ErrorKind::InternalError,
+            class: ErrorClass::ServerError,
+            msg: None,
+            desc: Some(error.to_string()),
+        }
+    }
+}