From 7695c4b82ed06a134e724e4cb6ceb25425c38c26 Mon Sep 17 00:00:00 2001
From: Marshall Bowers <git@maxdeviant.com>
Date: Wed, 30 Jul 2025 14:54:44 -0400
Subject: [PATCH] collab: Temporarily add back `GET /user` endpoint for local
 development (#35358)

This PR temporarily adds back the `GET /user` endpoint to Collab since
we're still using it for local development.

Will remove it again once we update the local development process to
leverage Cloud.

Release Notes:

- N/A
---
 crates/collab/src/api.rs | 46 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)

diff --git a/crates/collab/src/api.rs b/crates/collab/src/api.rs
index 6cf3f68f54..609fdd128c 100644
--- a/crates/collab/src/api.rs
+++ b/crates/collab/src/api.rs
@@ -100,6 +100,7 @@ impl std::fmt::Display for SystemIdHeader {
 
 pub fn routes(rpc_server: Arc<rpc::Server>) -> Router<(), Body> {
     Router::new()
+        .route("/user", get(legacy_update_or_create_authenticated_user))
         .route("/users/look_up", get(look_up_user))
         .route("/users/:id/access_tokens", post(create_access_token))
         .route("/users/:id/refresh_llm_tokens", post(refresh_llm_tokens))
@@ -144,6 +145,51 @@ pub async fn validate_api_token<B>(req: Request<B>, next: Next<B>) -> impl IntoR
     Ok::<_, Error>(next.run(req).await)
 }
 
+#[derive(Debug, Deserialize)]
+struct AuthenticatedUserParams {
+    github_user_id: i32,
+    github_login: String,
+    github_email: Option<String>,
+    github_name: Option<String>,
+    github_user_created_at: chrono::DateTime<chrono::Utc>,
+}
+
+#[derive(Debug, Serialize)]
+struct AuthenticatedUserResponse {
+    user: User,
+    metrics_id: String,
+    feature_flags: Vec<String>,
+}
+
+/// This is a legacy endpoint that is no longer used in production.
+///
+/// It currently only exists to be used when developing Collab locally.
+async fn legacy_update_or_create_authenticated_user(
+    Query(params): Query<AuthenticatedUserParams>,
+    Extension(app): Extension<Arc<AppState>>,
+) -> Result<Json<AuthenticatedUserResponse>> {
+    let initial_channel_id = app.config.auto_join_channel_id;
+
+    let user = app
+        .db
+        .update_or_create_user_by_github_account(
+            &params.github_login,
+            params.github_user_id,
+            params.github_email.as_deref(),
+            params.github_name.as_deref(),
+            params.github_user_created_at,
+            initial_channel_id,
+        )
+        .await?;
+    let metrics_id = app.db.get_user_metrics_id(user.id).await?;
+    let feature_flags = app.db.get_user_flags(user.id).await?;
+    Ok(Json(AuthenticatedUserResponse {
+        user,
+        metrics_id,
+        feature_flags,
+    }))
+}
+
 #[derive(Debug, Deserialize)]
 struct LookUpUserParams {
     identifier: String,