#

# set +o errexit -o noglob -o nounset is assumed.

#

#

# Private globals and subroutines

#

RTLP_LOG_FNAME="";

RTLP_LOG_NO_ATTR=0;

RTLP_LOG_TAGS="";

rtlp_log_printf() {

	local _attr="${1}" _fmt="${2}"; shift 2; _msg="$(printf "${_fmt}" "${@}")";

	if [ -n "${RTLP_LOG_FNAME}" ]; then

		printf "%s\n" "${_msg}" >> "${RTLP_LOG_FNAME}";

	fi;

	if [ "${RTLP_LOG_NO_ATTR:-0}" -eq 0 ]; then

		printf "\033[0m\033[${_attr}m%s\033[0m\n" "${_msg}";

	else

		printf "%s\n" "${_msg}";

	fi; return 0;

};

#

# Public subroutines

#

rtl_log_clear_tags() {

	RTLP_LOG_TAGS=""; return 0;

};

rtl_log_enable_tags() {

	local IFS=","; set -- ${*};

	while [ "${#}" -gt 0 ]; do

		if ! rtl_lmatch "${RTLP_LOG_TAGS}" "${1}" ","; then

			RTLP_LOG_TAGS="${RTLP_LOG_TAGS:+${RTLP_LOG_TAGS},}${1}";

		fi; shift;

	done; return 0;

};

rtl_log_env_vars() {

	local _tag="${1}" _type="${2}" _arg_len_max=0; shift 2;

	rtl_log_msg "${_tag}" "Variables for this ${_type}:";

	_arg_len_max="$(rtl_lmax "${@}")";

	while [ "${#}" -gt 0 ]; do

		rtl_log_msg "${_tag}"				\

			"%${_arg_len_max}.${_arg_len_max}s=%s"	\

			"${1%%=*}" "$(rtl_get_var_unsafe "${1#*=}")";

		shift;

	done; return 0;

};

rtl_log_msg() {

	local _tag="${1}" _fmt="${2}" _attr="" _exitfl=0; shift 2;

	[ "x${_tag}" = "xfatalexit" ] && { _tag="fatal"; _exitfl=1; };

	if rtl_lmatch "${RTLP_LOG_TAGS}" "${_tag}" ","; then

		eval _attr='${LOG_TAG_'"${_tag}"':-}';

		if [ "${#_attr}" -eq 0 ]; then

			rtlp_log_printf "" "==> ?[4;41;97mFIXME TODO XXX UNKNOWN TAG \`%s' PASSED TO rtl_log_msg()?[0m\n" "${_tag}";

		fi;

		rtlp_log_printf "${_attr}" "==> %s ${_fmt}" "$(rtl_date)" "${@}";

		if [ "${_exitfl}" -eq 1 ]; then

			exit 1;

		fi;

	fi; return 0;

};

rtl_log_set_fname() {

	RTLP_LOG_FNAME="${1}"; return 0;

};

rtl_log_set_no_attr() {

	RTLP_LOG_NO_ATTR="${1}"; return 0;

};

# vim:filetype=sh