chore: check for missing files on start

src-tauri/src/commands.rs

@@ -638,4 +638,33 @@ pub fn exit(app: AppHandle) {
 #[tauri::command]
 pub fn get_platform() -> String {
     std::env::consts::OS.to_string()
-}
+}
+
+#[tauri::command]
+pub async fn check_for_corruption(folder: String) -> Result<bool, String> {
+    let osu_path = PathBuf::from(folder);
+    let osu_ui = osu_path.join("osu!ui.dll");
+    let osu_gameplay = osu_path.join("osu!gameplay.dll");
+
+    let osu_ui_bak = osu_path.join("osu!ui.dll.bak");
+    let osu_gameplay_bak = osu_path.join("osu!gameplay.dll.bak");
+
+    let required_files = [&osu_ui, &osu_gameplay];
+
+    for file in &required_files {
+        if !file.exists() {
+            return Ok(true);
+        }
+    }
+
+    let bak_files = [&osu_ui_bak, &osu_gameplay_bak];
+    for bak in &bak_files {
+        if bak.exists() {
+            if let Err(e) = fs::remove_file(bak).await {
+                return Err(format!("Failed to delete {}: {}", bak.display(), e));
+            }
+        }
+    }
+
+    Ok(false)
+}

src-tauri/src/lib.rs

@@ -4,11 +4,11 @@ use tauri::Manager;
 pub mod commands;
 pub mod utils;
 use crate::commands::{
-    download_ezpp_launcher_update_files, exit, find_osu_installation, get_beatmapsets_count,
-    get_ezpp_launcher_update_files, get_hwid, get_launcher_version, get_osu_release_stream,
-    get_osu_skin, get_osu_version, get_skins_count, is_osu_running, open_url_in_browser,
-    replace_ui_files, run_osu, run_osu_updater, set_osu_config_values, set_osu_user_config_values,
-    valid_osu_folder, get_platform
+    check_for_corruption, download_ezpp_launcher_update_files, exit, find_osu_installation,
+    get_beatmapsets_count, get_ezpp_launcher_update_files, get_hwid, get_launcher_version,
+    get_osu_release_stream, get_osu_skin, get_osu_version, get_platform, get_skins_count,
+    is_osu_running, open_url_in_browser, replace_ui_files, run_osu, run_osu_updater,
+    set_osu_config_values, set_osu_user_config_values, valid_osu_folder,
 };
 
 #[cfg_attr(mobile, tauri::mobile_entry_point)]
@@ -46,7 +46,8 @@ pub fn run() {
             open_url_in_browser,
             get_launcher_version,
             exit,
-            get_platform
+            get_platform,
+            check_for_corruption
         ])
         .plugin(tauri_plugin_fs::init())
         .plugin(tauri_plugin_dialog::init())