feat: Add functionality to remove a user's game opinion via a new API endpoint and UI button.

backend/src/main.rs

@@ -123,6 +123,37 @@ async fn add_opinion(
     result
 }
 
+#[patch("/opinion", data = "<req>")]
+async fn remove_opinion(
+    token: auth::Token,
+    user_list: &rocket::State<Mutex<Vec<User>>>,
+    game_list: &rocket::State<Mutex<Vec<Game>>>,
+    req: proto_utils::Proto<items::RemoveOpinionRequest>,
+) -> Option<items::Person> {
+    let mut users = user_list.lock().await;
+    let games = game_list.lock().await;
+    let mut result = None;
+
+    if let Some(user) = users.iter_mut().find(|u| u.person.name == token.username) {
+        let req = req.into_inner();
+
+        if let Some(existing) = user
+            .person
+            .opinion
+            .iter()
+            .position(|o| o.title == req.game_title)
+        {
+            user.person.opinion.remove(existing);
+        }
+        result = Some(user.person.clone());
+    }
+
+    if result.is_some() {
+        save_state(&games, &users);
+    }
+    result
+}
+
 mod cached_option;
 use cached_option::CachedOption;
 
@@ -280,6 +311,7 @@ async fn main() -> Result<(), std::io::Error> {
                 get_game,
                 get_games,
                 add_opinion,
+                remove_opinion,
                 add_game,
                 get_game_thumbnail
             ],