daemon: setting foundation for client creation

kordophone/src/api/mod.rs

@@ -26,3 +26,27 @@ pub trait APIInterface {
     async fn authenticate(&mut self, credentials: Credentials) -> Result<JwtToken, Self::Error>;
 }
 
+pub trait TokenManagement {
+    fn get_token(&mut self) -> Option<JwtToken>;
+    fn set_token(&mut self, token: JwtToken);
+}
+
+pub struct InMemoryTokenManagement {
+    token: Option<JwtToken>,
+}
+
+impl InMemoryTokenManagement {
+    pub fn new() -> Self {
+        Self { token: None }
+    }
+}
+
+impl TokenManagement for InMemoryTokenManagement {
+    fn get_token(&mut self) -> Option<JwtToken> {
+        self.token.clone()
+    }
+
+    fn set_token(&mut self, token: JwtToken) {
+        self.token = Some(token);
+    }
+}