#!/bin/bash

# Sets Artist and AlbumArtist tags to arg for all .flac in . recursively.

artist=$1

# Ensure metaflac is installed
if ! command -v metaflac &> /dev/null; then
    echo "metaflac is required but not installed. Exiting."
    exit 1
fi

# Find and update all .flac files recursively
find . -type f -iname "*.flac" | while IFS= read -r flac; do
    echo "Updating tags in '$flac'..."
    metaflac --remove-tag=ALBUMARTIST --remove-tag="ALBUM ARTIST" --remove-tag="ALBUM_ARTIST" "$flac"
    metaflac --set-tag="ALBUMARTIST=$artist" "$flac"
    metaflac --remove-tag=ARTIST "$flac"
    metaflac --set-tag="ARTIST=$artist" "$flac"
done

echo "All matching FLAC files updated."