#!/bin/bash

# Loop through all FLAC files in the current directory
for file in *.flac; do
    # Extract the ARTIST tag from the FLAC file using metaflac
    artist=$(metaflac --show-tag=ARTIST "$file" | cut -d= -f2)

    # Check if the ARTIST tag contains common delimiters for multiple artists
    if [[ "$artist" == *"&"* ]] || [[ "$artist" == *","* ]] || [[ "$artist" == *"feat."* ]]; then
        # Replace '&' with ',' to treat both as the same delimiter
        artist=$(echo "$artist" | sed 's/&/,/g')

        # Split the ARTIST string by ',' into an array of artists
        IFS=',' read -r -a artists <<< "$artist"

        # Trim leading/trailing spaces from each artist name
        for i in "${!artists[@]}"; do
            artists[$i]=$(echo "${artists[$i]}" | xargs)  # Trim spaces
        done

        # Remove the existing ARTIST tag
        metaflac --remove-tag=ARTIST "$file"

        # Add each artist as a separate ARTIST tag
        for artist_name in "${artists[@]}"; do
            echo "Setting ARTIST to '$artist_name' for file '$file'..."
            metaflac --set-tag=ARTIST="$artist_name" "$file"
        done
    else
        echo "No combined artists found for '$file', skipping..."
    fi
done