api: Add a finishedAt property to the BrowserSession and a state property to all 3 session types

crates/graphql/src/model/browser_sessions.rs

@@ -73,6 +73,20 @@ impl BrowserSession {
     pub async fn created_at(&self) -> DateTime<Utc> {
         self.0.created_at
     }
+
+    /// When the session was finished.
+    pub async fn finished_at(&self) -> Option<DateTime<Utc>> {
+        self.0.finished_at
+    }
+
+    /// The state of the session.
+    pub async fn state(&self) -> BrowserSessionState {
+        if self.0.finished_at.is_some() {
+            BrowserSessionState::Finished
+        } else {
+            BrowserSessionState::Active
+        }
+    }
 }
 
 /// An authentication records when a user enter their credential in a browser

crates/graphql/src/model/compat_sessions.rs

@@ -89,6 +89,14 @@ impl CompatSession {
     pub async fn sso_login(&self) -> Option<CompatSsoLogin> {
         self.1.as_ref().map(|l| CompatSsoLogin(l.clone()))
     }
+
+    /// The state of the session.
+    pub async fn state(&self) -> CompatSessionState {
+        match &self.0.state {
+            mas_data_model::CompatSessionState::Valid => CompatSessionState::Active,
+            mas_data_model::CompatSessionState::Finished { .. } => CompatSessionState::Finished,
+        }
+    }
 }
 
 /// A compat SSO login represents a login done through the legacy Matrix login

crates/graphql/src/model/oauth.rs

@@ -78,6 +78,14 @@ impl OAuth2Session {
         }
     }
 
+    /// The state of the session.
+    pub async fn state(&self) -> OAuth2SessionState {
+        match &self.0.state {
+            SessionState::Valid => OAuth2SessionState::Active,
+            SessionState::Finished { .. } => OAuth2SessionState::Finished,
+        }
+    }
+
     /// The browser session which started this OAuth 2.0 session.
     pub async fn browser_session(
         &self,