From 1dac8cc13ac3ab70668f8991e997ec79e69c0804 Mon Sep 17 00:00:00 2001
From: Paul Campbell <pcampbell@kemitix.net>
Date: Fri, 11 Oct 2024 22:39:18 +0100
Subject: [PATCH] feat: group authors by first character

---
 src/main.rs  | 9 +++++----
 src/tests.rs | 4 ++--
 2 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/src/main.rs b/src/main.rs
index b7cc25a..f0218a6 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -78,12 +78,13 @@ fn rename_files(directory: &str, base: &str, args: &Arguments) -> Result<i32> {
         let (Some(title), Some(artist)) = (tag.title(), tag.artist()) else {
             continue;
         };
+        let (bucket, _) = artist.split_at(1);
         let album = parse_album(&title);
         count += 1;
         let new_name = if album.is_empty() {
-            format!("{artist}/{title}/{title}.m4b")
+            format!("{bucket}/{artist}/{title}/{title}.m4b")
         } else {
-            build_series_name(&artist, &album, &title)
+            build_series_name(bucket, &artist, &album, &title)
         };
         println!("==============================");
         println!("- artist: {artist}");
@@ -107,10 +108,10 @@ fn rename_files(directory: &str, base: &str, args: &Arguments) -> Result<i32> {
     Ok(count)
 }
 
-fn build_series_name(artist: &str, album: &str, title: &str) -> String {
+fn build_series_name(bucket: &str, artist: &str, album: &str, title: &str) -> String {
     let index = parse_index(title);
     let title = parse_title(title);
-    format!("{artist}/{album}/{index}. {title}/{index}. {title}.m4b")
+    format!("{bucket}/{artist}/{album}/{index}. {title}/{index}. {title}.m4b")
 }
 
 fn parse_index(title: &str) -> String {
diff --git a/src/tests.rs b/src/tests.rs
index 2f59c16..bff7a24 100644
--- a/src/tests.rs
+++ b/src/tests.rs
@@ -11,8 +11,8 @@ use pretty_assertions::assert_eq;
     "3. A Conjuring of Light"
 )]
 fn parse_series_details(#[case] album: &str, #[case] title: &str, #[case] expected: &str) {
-    let expected_result = format!("Bob/{album}/{expected}/{expected}.m4b");
-    let result = build_series_name("Bob", album, title);
+    let expected_result = format!("B/Bob/{album}/{expected}/{expected}.m4b");
+    let result = build_series_name("B", "Bob", album, title);
 
     assert_eq!(result, expected_result);
 }