fix: read beatmapset count from osu!.db instead of iterating songs folder

src-tauri/Cargo.lock

@@ -475,8 +475,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "145052bdd345b87320e369255277e3fb5152762ad123a901ef5c262dd38fe8d2"
 dependencies = [
  "iana-time-zone",
+ "js-sys",
  "num-traits",
  "serde",
+ "wasm-bindgen",
  "windows-link 0.2.1",
 ]
 
@@ -995,6 +997,7 @@ dependencies = [
  "md5",
  "once_cell",
  "open",
+ "osynic_osudb",
  "reqwest",
  "serde",
  "serde_json",
@@ -2052,6 +2055,26 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "liblzma"
+version = "0.4.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b6033b77c21d1f56deeae8014eb9fbe7bdf1765185a6c508b5ca82eeaed7f899"
+dependencies = [
+ "liblzma-sys",
+]
+
+[[package]]
+name = "liblzma-sys"
+version = "0.4.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9f2db66f3268487b5033077f266da6777d057949b8f93c8ad82e441df25e6186"
+dependencies = [
+ "cc",
+ "libc",
+ "pkg-config",
+]
+
 [[package]]
 name = "libredox"
 version = "0.1.12"
@@ -2262,6 +2285,15 @@ version = "0.1.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "72ef4a56884ca558e5ddb05a1d1e7e1bfd9a68d9ed024c21704cc98872dae1bb"
 
+[[package]]
+name = "nom"
+version = "8.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "df9761775871bdef83bee530e60050f7e54b1105350d6884eb0fb4f46c2f9405"
+dependencies = [
+ "memchr",
+]
+
 [[package]]
 name = "ntapi"
 version = "0.4.2"
@@ -2605,6 +2637,18 @@ dependencies = [
  "windows-sys 0.61.2",
 ]
 
+[[package]]
+name = "osynic_osudb"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0d7f03567d97cdc0bf54380f0c525a00de1ce58ed9497f2409dfaf6112346b8a"
+dependencies = [
+ "chrono",
+ "liblzma",
+ "nom",
+ "serde",
+]
+
 [[package]]
 name = "pango"
 version = "0.18.3"

src-tauri/Cargo.toml

@@ -35,6 +35,7 @@ open = "5.3.3"
 discord-rich-presence = "1.1.0"
 once_cell = "1.21.3"
 futures-util = "0.3.32"
+osynic_osudb = "0.1.4"
 
 [target.'cfg(windows)'.dependencies]
 winreg = "0.55.0"

src-tauri/src/commands.rs

@@ -1,4 +1,5 @@
 use hardware_id::get_id;
+use osynic_osudb::entity::osu::osudb::OsuDB;
 use reqwest::Client;
 use serde::{Deserialize, Serialize};
 use std::collections::HashSet;
@@ -156,33 +157,14 @@ pub fn find_osu_installation() -> Option<String> {
 #[tauri::command]
 pub async fn get_beatmapsets_count(folder: String) -> Option<u64> {
     let path = PathBuf::from(folder);
-    let osu_user_config = get_osu_user_config(path.clone());
-    let songs_path = osu_user_config
-        .and_then(|config| config.get("Songs").cloned())
-        .unwrap_or_else(|| path.join("Songs").to_string_lossy().into_owned());
-    let songs_folder = PathBuf::from(songs_path);
-
-    if !songs_folder.exists() {
-        return None;
+    let osu_db_path = path.join("osu!.db");
+    if !osu_db_path.exists() {
+        return Some(0);
     }
-
-    let mut count = 0;
-    if let Ok(mut entries) = fs::read_dir(songs_folder).await {
-        while let Ok(Some(entry)) = entries.next_entry().await {
-            if entry.file_type().await.map_or(false, |ft| ft.is_dir()) {
-                let dir_path = entry.path();
-                if let Ok(mut files) = fs::read_dir(&dir_path).await {
-                    while let Ok(Some(file)) = files.next_entry().await {
-                        if file.path().extension().map_or(false, |ext| ext == "osu") {
-                            count += 1;
-                            break;
-                        }
-                    }
-                }
-            }
-        }
-    }
-    return Some(count);
+    let mut osudb = OsuDB::from_file(&osu_db_path).unwrap();
+    let beatmaps = osudb.beatmaps.iter_mut();
+    let beatmap_sets = beatmaps.map(|b| b.beatmapset_id).collect::<HashSet<_>>();
+    return Some(beatmap_sets.len() as u64);
 }
 
 #[derive(Serialize, Deserialize, Debug, Clone)]