detect if a game is deleted, added, modified locally

crates/lanspread-tauri-deno-ts/src-tauri/src/lib.rs

@@ -525,6 +525,45 @@ async fn update_game_db(games: Vec<Game>, app: AppHandle) {
     refresh_games_list(&app).await;
 }
 
+async fn update_local_games_in_db(local_games: Vec<Game>, app: AppHandle) {
+    let state = app.state::<LanSpreadState>();
+
+    // Collect local game IDs first to avoid move issues
+    let local_game_ids: HashSet<String> = local_games.iter().map(|g| g.id.clone()).collect();
+
+    {
+        let mut game_db = state.games.write().await;
+
+        // Update installation status for games that exist locally
+        for local_game in &local_games {
+            if let Some(existing_game) = game_db.get_mut_game_by_id(&local_game.id) {
+                existing_game.downloaded = local_game.downloaded;
+                existing_game.installed = local_game.installed;
+                existing_game
+                    .local_version
+                    .clone_from(&local_game.local_version);
+                log::debug!("Updated local game status for: {}", local_game.id);
+            }
+        }
+
+        // For games in the main DB that are not in the local list,
+        // mark them as not downloaded/installed (they were deleted)
+        for game in game_db.games.values_mut() {
+            if !local_game_ids.contains(&game.id) && (game.downloaded || game.installed) {
+                log::info!(
+                    "Game {} no longer exists locally, marking as uninstalled",
+                    game.id
+                );
+                game.downloaded = false;
+                game.installed = false;
+                game.local_version = None;
+            }
+        }
+    }
+
+    refresh_games_list(&app).await;
+}
+
 fn add_final_slash(path: &str) -> String {
     #[cfg(target_os = "windows")]
     const SLASH_CHAR: char = '\\';
@@ -699,6 +738,10 @@ pub fn run() {
                             log::info!("PeerEvent::ListGames received");
                             update_game_db(games, app_handle.clone()).await;
                         }
+                        PeerEvent::LocalGamesUpdated(local_games) => {
+                            log::info!("PeerEvent::LocalGamesUpdated received");
+                            update_local_games_in_db(local_games, app_handle.clone()).await;
+                        }
                         PeerEvent::GotGameFiles { id, file_descriptions } => {
                             log::info!("PeerEvent::GotGameFiles received");