#!/bin/bash

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

# Get the current directory name
album_name=$(basename "$PWD")
album_artist="Various Artists"

echo "Setting ALBUM to '$album_name', ALBUMARTIST to '$album_artist', DISCNUMBER to 1, and TRACKNUMBER incrementally."

# Initialize track counter
track_number=1

# Process each .flac file, sorted alphabetically
for flac in *.flac; do
    # Skip if no flac files
    [ -e "$flac" ] || continue

    echo "Updating '$flac'..."

    # Remove old ALBUM, ALBUMARTIST, DISCNUMBER, and TRACKNUMBER tags
    metaflac --remove-tag=ALBUM --remove-tag=ALBUMARTIST --remove-tag=DISCNUMBER --remove-tag=TRACKNUMBER "$flac"

    # Set new tags
    metaflac --set-tag="ALBUM=$album_name" \
             --set-tag="ALBUMARTIST=$album_artist" \
             --set-tag="DISCNUMBER=1" \
             --set-tag="TRACKNUMBER=$track_number" "$flac"

    # Increment track number
    track_number=$((track_number + 1))
done

echo "All files updated."