add "random" endpoint that just redirects you to a random node.

no hash required.

src/ring/router.gleam

@@ -12,6 +12,8 @@ pub fn handle_request(req: Request) -> Response {
   case wisp.path_segments(req) {
     [] -> home_page(req)
 
+    ["random"] -> handle_random()
+
     [hash, "previous"] -> handle_previous(hash)
     [hash, "next"] -> handle_next(hash)
 
@@ -55,6 +57,21 @@ fn handle_next(hash) {
   }
 }
 
+fn handle_random() {
+  let db_path = "members.db"
+  use conn <- sqlight.with_connection(db_path)
+  let next =
+    sqlight.query(
+      "select next from ring order by random() limit 1",
+      on: conn,
+      expecting: dynamic.decode1(Row, dynamic.element(0, dynamic.string)),
+    )
+  case next {
+    Ok([Row(next_link)]) -> wisp.redirect(next_link)
+    _ -> wisp.not_found()
+  }
+}
+
 fn home_page(req: Request) -> Response {
   // The home page can only be accessed via GET requests, so this middleware is
   // used to return a 405: Method Not Allowed response for all other methods.