From 426c2b463ecd287d658d5e7a3eef66284e76e369 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Asger=20Juul=20Brunsh=C3=B8j?= <asgerbrunshoj@gmail.com>
Date: Wed, 22 Jan 2025 23:32:45 +0100
Subject: [PATCH] fix: dont panic when no problems are available

---
 README.md                       | 1 +
 crates/ascend/src/pages/wall.rs | 9 ++++++---
 2 files changed, 7 insertions(+), 3 deletions(-)
 create mode 100644 README.md

diff --git a/README.md b/README.md
new file mode 100644
index 0000000..0e75d3b
--- /dev/null
+++ b/README.md
@@ -0,0 +1 @@
+# Ascend
diff --git a/crates/ascend/src/pages/wall.rs b/crates/ascend/src/pages/wall.rs
index 0b3903c..0a39241 100644
--- a/crates/ascend/src/pages/wall.rs
+++ b/crates/ascend/src/pages/wall.rs
@@ -49,7 +49,10 @@ fn Ready(data: InitialData) -> impl leptos::IntoView {
     let problem_fetcher = LocalResource::new(move || async move {
         tracing::info!("Loading random problem");
         let problem = get_random_problem().await.expect("cannot get random problem");
-        current_problem_writer.set(Some(problem.into_inner()));
+        if problem.is_none() {
+            tracing::info!("No problem returned by server in response to request for random problem");
+        }
+        current_problem_writer.set(problem.into_inner());
     });
 
     let mut cells = vec![];
@@ -112,7 +115,7 @@ async fn load_initial_data() -> Result<RonCodec<InitialData>, ServerFnError> {
 }
 
 #[server]
-async fn get_random_problem() -> Result<RonCodec<models::Problem>, ServerFnError> {
+async fn get_random_problem() -> Result<RonCodec<Option<models::Problem>>, ServerFnError> {
     use crate::server::state::State;
     use rand::seq::IteratorRandom;
 
@@ -123,7 +126,7 @@ async fn get_random_problem() -> Result<RonCodec<models::Problem>, ServerFnError
         .with(|s| {
             let problems = &s.problems.problems;
             let rng = &mut rand::thread_rng();
-            problems.iter().choose(rng).unwrap().clone()
+            problems.iter().choose(rng).cloned()
         })
         .await;