feat: add autoplay suggestions when queue runs out

rust/src/lib.rs

@@ -48,6 +48,7 @@ pub const EV_DEEP_SHUFFLE_OK: c_int = 25;
 pub const EV_MOST_POPULAR_OK: c_int = 26;
 pub const EV_GENRES_OK: c_int = 27;
 pub const EV_FEATURED_ALBUMS_OK: c_int = 28;
+pub const EV_DYNAMIC_SUGGEST_OK: c_int = 29;
 
 // ---------- Callback ----------
 
@@ -234,6 +235,59 @@ pub unsafe extern "C" fn qobuz_backend_most_popular_search(
     });
 }
 
+#[no_mangle]
+pub unsafe extern "C" fn qobuz_backend_get_dynamic_suggestions(
+    ptr: *mut Backend,
+    listened_track_ids_json: *const c_char,
+    tracks_to_analyze_json: *const c_char,
+    limit: u32,
+) {
+    let inner = &(*ptr).0;
+    let client = inner.client.clone();
+    let cb = inner.cb;
+    let ud = inner.ud;
+
+    let listened_str = CStr::from_ptr(listened_track_ids_json)
+        .to_string_lossy()
+        .into_owned();
+    let analyze_str = CStr::from_ptr(tracks_to_analyze_json)
+        .to_string_lossy()
+        .into_owned();
+
+    let listened: serde_json::Value = match serde_json::from_str(&listened_str) {
+        Ok(v) => v,
+        Err(e) => {
+            call_cb(cb, ud, EV_GENERIC_ERR, &err_json(&e.to_string()));
+            return;
+        }
+    };
+
+    let to_analyze: serde_json::Value = match serde_json::from_str(&analyze_str) {
+        Ok(v) => v,
+        Err(e) => {
+            call_cb(cb, ud, EV_GENERIC_ERR, &err_json(&e.to_string()));
+            return;
+        }
+    };
+
+    spawn(inner, async move {
+        let result = client
+            .lock()
+            .await
+            .get_dynamic_suggestions(limit, listened, to_analyze)
+            .await;
+        match result {
+            Ok(r) => call_cb(
+                cb,
+                ud,
+                EV_DYNAMIC_SUGGEST_OK,
+                &serde_json::to_string(&r).unwrap_or_default(),
+            ),
+            Err(e) => call_cb(cb, ud, EV_GENERIC_ERR, &err_json(&e.to_string())),
+        }
+    });
+}
+
 // ---------- Album ----------
 
 #[no_mangle]