refactor: move file explorer logic to it's own module

src/file_explorer.rs

@@ -0,0 +1,26 @@
+use ignore::types::TypesBuilder;
+use ignore::WalkBuilder;
+use std::{io, path::PathBuf};
+
+pub fn walk_dir(path: &PathBuf) -> io::Result<Vec<PathBuf>> {
+    let mut types_builder = TypesBuilder::new();
+    types_builder.add_defaults();
+
+    let accepted_filetypes = ["mp3", "flac"];
+
+    for filetype in accepted_filetypes {
+        let _ = types_builder.add("sound", format!("*.{}", filetype).as_str());
+    }
+
+    types_builder.select("sound");
+
+    let entries: Vec<PathBuf> = WalkBuilder::new(path)
+        .types(types_builder.build().unwrap())
+        .build()
+        .filter_map(|entry| entry.ok())
+        .filter(|entry| !entry.path().is_dir())
+        .map(|entry| entry.path().to_path_buf())
+        .collect();
+
+    Ok(entries)
+}