draft new api version

src/client/connection/error.rs

@@ -0,0 +1,16 @@
+use std::fmt::{Display, Formatter, Result};
+
+#[derive(Debug)]
+pub enum Error {
+    Closed,
+    Tls(glib::Error),
+}
+
+impl Display for Error {
+    fn fmt(&self, f: &mut Formatter) -> Result {
+        match self {
+            Self::Closed => write!(f, "Socket connection closed"),
+            Self::Tls(reason) => write!(f, "Could not create TLS connection: {reason}"),
+        }
+    }
+}