feat: add get_beatmapsets_count command and utility to retrieve osu! user config

src-tauri/src/utils.rs

@@ -21,4 +21,34 @@ pub fn check_folder_completeness<P: AsRef<Path>>(folder_path: P, required_files:
     } else {
         (found as f32 / required_files.len() as f32) * 100.0
     }
-}
+}
+
+pub fn get_osu_user_config<P: AsRef<Path>>(
+    osu_folder_path: P,
+) -> Option<std::collections::HashMap<String, String>> {
+    // Ensure the osu! folder path is valid
+    if !osu_folder_path.as_ref().exists() {
+        return None;
+    }
+
+    // get the osu!{username}.cfg file from the osu! folder
+    let current_user = std::env::var("USERNAME").unwrap_or_else(|_| "Admin".to_string());
+    let osu_config_path = osu_folder_path
+        .as_ref()
+        .join(format!("osu!.{}.cfg", current_user));
+    if !osu_config_path.exists() {
+        return None;
+    }
+
+    // read the osu config and return it as a map, key and value are separated by ' = '
+    let mut config_map = std::collections::HashMap::new();
+    if let Ok(contents) = std::fs::read_to_string(osu_config_path) {
+        for line in contents.lines() {
+            if let Some((key, value)) = line.split_once(" = ") {
+                config_map.insert(key.trim().to_string(), value.trim().to_string());
+            }
+        }
+    }
+
+    return Some(config_map);
+}