# check if run from script
[[ "${BASH_SOURCE[0]}" == "${0}" ]] && exit 1

init_default(){
# read default conf file
    DEFAULT_CONF="${ROOT_DIR}/config/default.conf"
    [[ -f "$DEFAULT_CONF" ]] && source "$DEFAULT_CONF"

}

init_env() {
# read config file
    CONFIG_FILE="/etc/own-pki/own-pki.conf"
    [[ -f "$CONFIG_FILE" ]] && source "$CONFIG_FILE" || msg_error "File ${ORANGE}$CONFIG_FILE${RED} missing. Run 'sudo bin/install.sh'${NC}"

# debug mode 
    if [[ "${DEBUG:-false}" == "true" ]]; then
        set -x
    fi
    out_tmp=$(mktemp)
    err_tmp=$(mktemp)
}

clean_string() {
  echo "$1" | \
    # translate special chars to closest ASCII (e.g., 'é' -> 'e')
    iconv -f utf-8 -t ascii//TRANSLIT | \
    # convert to lowercase
    tr '[:upper:]' '[:lower:]' | \
    # replace any non-alphanumeric character with an underscore
    sed -E 's/[^a-z0-9]+/_/g' | \
    # replace multiple underscores into one
    sed -E 's/(_)+/_/g' | \
    # remove underscores at the beginning or end
    sed -E 's/^_|_$//g'
}

check_sudo(){
# check if user has sudo rigth
    if sudo ! -n true 2>/dev/null; then
        msg_error "\nAccess denied: user $USER does not have sudo privileges or a password is required.\n"
        exit 1
    fi

# check if the effective user ID is 0 (root)
    if [[ $EUID -ne 0 ]]; then
        msg_error "\nThis script must be run as root or with sudo.\n"
        exit 1
    fi

}