[Custom cd function] Custom bash function to cd in my local server directory with autocomplete

.bash_profile

# Use it with `goto project`
goto () {
    # cancel if no arguments
	if [ -z "$1" ]; then
		echo "Mau goto kemana??"
		return 0
	fi

    local UPPER=$(printf "%s" "$1" | tr '[:lower:]' '[:upper:]');
	local P_DIR="/Users/qutek/LocalServer/_$UPPER";

	# if directory exists
	if [ -d "$P_DIR" ]; then
		cd "$P_DIR";
	else
		echo "$P_DIR gak ada!!";
		return 0;
	fi
}
complete -W "project mayven deft" goto