FFMPEG="true"
if [ "$2" == "" ]; then
	for file in *mp3; do 
		if [[ "${FFMPEG}" == "true" ]]; then
			ffmpeg -i "$file" -i /home/lucas/Downloads/$1 -map 0:0 -map 1:0 -c copy -id3v2_version 3 -metadata:s:v title="Album cover" -metadata:s:v comment="Cover (front)" "$file.mp3"
		else
			lame --ti /home/lucas/Downloads/$1 "$file"
		fi
		mv "$file.mp3" "$file"
	done
else
	for file in "$2"; do 
		if [[ "${FFMPEG}" == "true" ]]; then
			ffmpeg -i "$file" -i /home/lucas/Downloads/$1 -map 0:0 -map 1:0 -c copy -id3v2_version 3 -metadata:s:v title="Album cover" -metadata:s:v comment="Cover (front)" "$file.mp3"
		else
			lame --ti /home/lucas/Downloads/$1 "$file"
		fi
		mv "$file.mp3" "$file"
	done
fi