community: declare what you like on soulseek, so the similar-users shelf finally has something to rank on

crates/soulseek-client/src/lib.rs

@@ -625,6 +625,19 @@ impl Client {
         }
     }
 
+    /// Declare, or take back, one interest on the server. Fire and forget:
+    /// the server sends nothing back, and reading our own interests is how you
+    /// confirm it landed.
+    pub fn declare_interest(&self, thing: &str, like: bool, on: bool) -> Result<()> {
+        let msg = match (like, on) {
+            (true, true) => server::add_thing_i_like(thing),
+            (true, false) => server::remove_thing_i_like(thing),
+            (false, true) => server::add_thing_i_hate(thing),
+            (false, false) => server::remove_thing_i_hate(thing),
+        };
+        self.inner.send_server(msg)
+    }
+
     /// Users the server ranks as similar to us by shared interests. Spawn-shaped.
     pub fn similar_users(
         &self,