feat: add fallback if there is no album tag in file

src/main.rs

@@ -3,7 +3,7 @@ use lofty::file::TaggedFileExt;
 use lofty::probe::Probe;
 use lofty::tag::Accessor;
 use lofty::tag::Tag;
-use std::fs::{create_dir_all, rename};
+use std::fs::{copy, create_dir_all, rename};
 use std::path::PathBuf;
 
 #[derive(Parser)]
@@ -31,7 +31,6 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
         Commands::Show { file } => {
             println!("Show file: {:?}", file);
             let tag = get_metadata(file.to_path_buf());
-            println!("{}", tag.title().as_deref().unwrap_or("None"));
 
             for item in tag.items() {
                 println!("{:?}", item)
@@ -59,15 +58,41 @@ fn get_metadata(file_path: PathBuf) -> lofty::tag::Tag {
 }
 
 fn move_files(file_path: PathBuf, tag: Tag) -> Result<(), Box<dyn std::error::Error>> {
-    let target_dir = PathBuf::from("./test");
+    let target_dir = PathBuf::from("./");
+
     let artist = tag.artist();
-    let mut final_target = PathBuf::new();
-    if let Some(artist_path) = artist {
-        final_target = target_dir.join(artist_path.as_ref()).join(&file_path);
-        let dir_to_create = target_dir.join(artist_path.as_ref());
-        let _ = create_dir_all(dir_to_create);
+    let album = tag.album();
+    let title = tag.title();
+
+    let mut target = PathBuf::new();
+
+    if let (Some(artist_path), Some(album_path), Some(title_path)) = (artist, album, title) {
+        if album_path.is_empty() {
+            let dir_to_create = target_dir
+                .join(artist_path.as_ref())
+                .join(title_path.as_ref());
+
+            let _ = create_dir_all(dir_to_create);
+
+            target = target_dir
+                .join(artist_path.as_ref())
+                .join(title_path.as_ref())
+                .join(&file_path);
+        } else {
+            let dir_to_create = target_dir
+                .join(artist_path.as_ref())
+                .join(album_path.as_ref());
+
+            let _ = create_dir_all(dir_to_create);
+
+            target = target_dir
+                .join(artist_path.as_ref())
+                .join(album_path.as_ref())
+                .join(&file_path);
+        }
     }
-    println!("{:?}", final_target);
-    rename(file_path, final_target)?;
+    println!("{:?}", target);
+    //rename(file_path, target)?;
+    copy(file_path, target)?;
     Ok(())
 }