# $Id$

# import_resource $table $serial $resource $value
import_resource()
{
	local table="$1"
	local serial="$2"
	local resource="$3"
	local value="$4"

	if [[ ${DEBUG} = 1 ]]
	then
		echo "${table}->${resource}=${value}" >> /root/lala.log
		echo "mysqldo \"update ${table} set ${resource}='${value}' where serial=${serial};\"" >> /root/lala.log
	fi

	mysql_insert "${table}",serial="${serial}","${resource}"="${value}"
}

# run_class $method $caller $argv1 $argv2 ... $argvN
run_class()
{
	local method="$1"
	local caller="$2"
	local class
	local cmd
	local argv

	if validate_session
	then
		class="${caller%.*}"
		cmd="${caller#*.}"
		argv="${@/${caller}/}" # remove caller
		argv="${argv/${method}/}" # remove method

#		echo "method=${method}"
# 		echo "caller=${caller}"
# 		echo "class=${class}"
# 		echo "cmd=${cmd}"
# 		echo "argv=${argv}"

		# check if class.cmd exist
		if [[ ! -z $(typeset -f "${method}"_"${class}"_"${cmd}") ]]
		then
			"${method}"_"${class}"_"${cmd}" ${argv}
		else
 			echo "unkown method '${method}' . class '${class}' . cmd '${cmd}'"
		fi
	else
		invalid_session
	fi
}

help_topics()
{
	local i
	local topics

	topics=$(typeset -f | grep '^help_' | sed 's:help_\(.*\)\ .*():\1:' | sed 's:_:\.:' | sort)
	mecho "Global commands:"
	mecho "\timport  - import settings to database"
	mecho "\tget     - shows current value for a settings"
	mecho "\tset     - sets value for a setting"
	mecho "\tauth    - authenticate to the daemon"
	mecho "\tprovide - shows provides of a system"
	mecho "\thelp    - shows help"
	mecho
	mecho "Help topics:"
	for i in ${topics}
	do
		# excludes
		case ${i} in
			help_topics|topics) continue ;;
		esac

		mecho "\t${i}"
	done
}

# on newer xorg-servers root is not allowed to run progs in a user session
x11runas()
{
	su - "${MCORE_UNPRIV_USER}" -c "$@"
}

addconfig()
{
	if [[ -z ${CONFIG} ]]
	then
		echo "You must define \$CONFIG varibale first!"
		return 1
	fi

	if [[ ! -d $(dirname ${CONFIG}) ]]
	then
		install -d $(dirname ${CONFIG})
	fi
	echo "$@" >> ${CONFIG}
}

clearconfig()
{
	if [[ -z ${CONFIG} ]]
	then
		echo "You must define \$CONFIG varibale first!"
		return 1
	fi

	: > ${CONFIG}
}

require()
{
	local requires="$@"
	local i

	for i in ${requires}
	do
		export REQUIRE="${REQUIRE} ${i}"
	done
}

not_provided()
{
	local i
	local item="$1"

	for i in ${PROVIDE}
	do
		[[ ${i} = ${item} ]] && return 1
	done

	return 0
}

provide()
{
	local provides="$@"
	local i

	for i in ${provides}
	do
		# check for duplicate provides
		if not_provided "${i}"
		then
			export PROVIDE="${PROVIDE} ${i}"
		else
			[[ ${DEBUG} = 1 ]] && echo "duplicate provide '${i}' detected!" 
		fi
	done
}

print_provide()
{
	local sorted

	# sort them alpabetically
	sorted=$(for i in ${PROVIDE}; do echo "${i}"; done | sort)
	# do not escape, or CRLFS get printed to screen too
	mecho ${sorted}	
}

mecho()
{
	local COLCYAN="\033[1;36m"
	local COLDEFAULT="\033[0m"
	if [[ ${NOCOLORS} = true ]]
	then
		COLCYAN=""
		COLDEFAULT=""
	fi

	echo -e "${COLCYAN}$@${COLDEFAULT}"
}