Migrate `/v1/stats` route

Signed-off-by: xphoniex <dj.2dixx@gmail.com>

radicle-httpd/src/api.rs

@@ -121,6 +121,11 @@ async fn root_handler(Extension(ctx): Extension<Context>) -> impl IntoResponse {
                 "href": "/v1/delegates/:did/projects",
                 "rel": "projects",
                 "type": "GET"
+            },
+            {
+                "href": "/v1/stats",
+                "rel": "stats",
+                "type": "GET"
             }
         ]
     });

radicle-httpd/src/api/v1.rs

@@ -2,6 +2,7 @@ mod delegates;
 mod node;
 mod projects;
 mod sessions;
+mod stats;
 
 use axum::Router;
 
@@ -12,7 +13,8 @@ pub fn router(ctx: Context) -> Router {
         .merge(node::router(ctx.clone()))
         .merge(sessions::router(ctx.clone()))
         .merge(delegates::router(ctx.clone()))
-        .merge(projects::router(ctx));
+        .merge(projects::router(ctx.clone()))
+        .merge(stats::router(ctx));
 
     Router::new().nest("/v1", routes)
 }

radicle-httpd/src/api/v1/stats.rs

@@ -0,0 +1,24 @@
+use axum::response::IntoResponse;
+use axum::routing::get;
+use axum::{Extension, Json, Router};
+use serde_json::json;
+
+use crate::api::error::Error;
+use crate::api::Context;
+
+pub fn router(ctx: Context) -> Router {
+    Router::new()
+        .route("/stats", get(stats_handler))
+        .layer(Extension(ctx))
+}
+
+/// Return the stats for the node.
+/// `GET /stats`
+async fn stats_handler(Extension(ctx): Extension<Context>) -> impl IntoResponse {
+    let storage = &ctx.profile.storage;
+    let projects = storage.projects()?.len();
+
+    Ok::<_, Error>(Json(
+        json!({ "projects": { "count": projects }, "users": { "count": 0 } }),
+    ))
+}