#!/bin/bash
## zramraid-config
## (c) author's idea and realization: Kleemov A. & Koshuba V.
## script author: Koshuba V - stvixfree@gmail.com
## all parameters
##settime=$(date +%s%3N);
option=$1;
params=$2;
export PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/etc/zramraid";
version="25.06.18";
## msg [53]
set_msg=( '"0" "0"' '"1" "0"' '"2" "0"' '"3" "0"' '"4" "0"' '"5" "0"' '"6" "1"' '"7" "1"' '"8" "1"' 
	'"9" "1"' '"10" "1"' '"11" "1"' '"12" "1"'  '"13" "1"' '"14" "1"' '"15" "1"' '"16" "0"' 
	'"17" "0"' '"18" "0"' '"19" "0"' '"20" "1"' '"21" "1"' '"22" "1"' '"23" "1"' '"24" "1"'
	'"25" "1"' '"26" "1"' '"27" "1"' '"28" "1"' '"29" "1"' '"30" "1"' '"31" "1"' '"32" "1"'
	'"33" "1"' '"34" "1"' '"35" "1"' '"36" "1"' '"37" "1"' '"38" "1"' '"39" "1"' '"40" "1"'
	'"41" "1"' '"42" "1"' '"43" "1"' '"44" "1"' '"45" "1"' '"46" "1"' '"47" "1"' '"48" "1"'
	'"49" "0"' '"50" "0"' '"51" "0"' '"52" "0"' '"53" "0"' );
msg=();
###
lang=$(locale|grep LANG=|sed 's/\LANG=//g');
rdate=$(date +%c);
##
total_mem=$(cat /proc/meminfo |awk '/^MemTotal:/{print $2}');
free_mem=$(cat /proc/meminfo |awk '/^MemAvailable:/{print $2}');
limit_mem=0;
info_limit_mem=0;
total_size_images=0;
zpath="/etc/zramraid";
zconfig="zramraid.conf";
zmsg="/etc/zramraid/messages.dat";
log="/var/log/zramraid.log";
reports=();
id_zmd=();
image_zmd=();
size_zmd=();
json_key=( "id" "info" "image" );
zdm_vars=( "id_zmd" "info_zmd" "image_zmd" );
input_unit=();
math_unit=0;
set_params=();
set_id="";
set_image="";
set_opt=( "0" "0" "0" "0" );
set_size_limit=0;
set_type_limit="";
##
zr_blkid=$(whereis -b blkid|awk '/^blkid:/{print $2}');
zr_jq=$(whereis -b jq|awk '/^jq:/{print $2}');

## functions & operations
operation_createdef=( "checkDep" "loadMsg" "testId" "confEmpty" );
operation_add=( "checkDep" "loadMsg" "testId" "inPut" "readConf" "testMd" "testImage" "addMd" );
operation_del=( "checkDep" "loadMsg" "testId" "inPut" "readConf" "delMd" );
operation_list=( "clear" "checkDep" "loadMsg" "testId" "readConf" "reportConf" "printInfo" );
operation_help=( "clear" "checkDep" "loadMsg" "printInfo" );
operation_mdinfo=( "clear" "checkDep" "loadMsg" "testId" "inPut" "readConf" "addInfoMd" );
operation_mem=( "checkDep" "loadMsg" "testId" "inPut" "readConf" "setLimitMem" );
execute_func=();

## logic executor values
iFs=();
logic=();
value_in="";
lEnd=1;

##--@F math functions
## Byte <> Kb
function Byte(){ if [ ! ${input_unit[2]} ]
		then eval ${input_unit[1]}=$(echo "scale=0; ${input_unit[0]}/1024"|bc -lq);
		else eval ${input_unit[1]}=$(echo ${input_unit[0]}*1024|bc -lq); 
		fi }
## Kb <> Byte
function Kb() { if [ ! ${input_unit[2]} ] 
		then eval ${input_unit[1]}=$(echo ${input_unit[0]}*1024|bc -lq);
		else eval ${input_unit[1]}=$(echo "scale=0; ${input_unit[0]}/1024"|bc -lq);
		fi }
## Mb <> Byte
function Mb() { if [ ! ${input_unit[2]} ]
		then eval ${input_unit[1]}=$(echo ${input_unit[0]}*1024^2|bc -lq);
		else eval ${input_unit[1]}=$(echo "scale=0; ${input_unit[0]}/1024^2"|bc -lq);
		fi }
## Gb <> Byte
function Gb() { if [ ! ${input_unit[2]} ] 
		then eval ${input_unit[1]}=$(echo ${input_unit[0]}*1024^3|bc -lq);
		else eval ${input_unit[1]}=$(echo "scale=0; ${input_unit[0]}/1024^3"|bc -lq);
		fi }
## Tb <> Byte
function Tb() { if [ ! ${input_unit[2]} ] 
		then eval ${input_unit[1]}=$(echo ${input_unit[0]}*1024^4|bc -lq);
		else eval ${input_unit[1]}=$(echo "scale=0; ${input_unit[0]}/1024^4"|bc -lq);
		fi }

## -@F logic executor
function eXlogic() {
lEnd=1;
if [[ ${#iFs[@]} -eq 0 ]]||[[ ${#iFs[@]} != ${#logic[@]} ]]
    then echo "exit";
         exit 0;
fi

local exfunc=();
for ((lg_index=0; lg_index != ${#iFs[@]}; lg_index++))
 do
    ## !! debug operation...
    #echo "eXlogic = execution: function ${iFs[$lg_index]} : index=$lg_index";
    local lg=$(echo $((${iFs[$lg_index]})) );
    local exfunc=( ${logic[$lg_index]} );
    local runfunc=$(echo ${exfunc[$lg]}| sed 's/\"//g');
    $runfunc;
    if [[ $lEnd == 0 ]] 
	then lg_index=$((${#iFs[@]}-1)); 
    fi
done
iFs=();
logic=();
value_in="";
}

##--@F write log events
function writeToLog() {
for ((rpt_index=0; rpt_index != ${#reports[@]}; rpt_index++))
do
    echo  "$rdate zramraid message: ${reports[$rpt_index]}">>$log;
done
}

##--@F make all errors
function makeErr() {
 reports[${#reports[@]}]=${msg[42]};
 printInfo;
 writeToLog;
 exit 0;
}

function printInfo() {
value_in="$option";
iFs=(	"$(echo -n $value_in|wc -m) == 0"
	"$(echo -n $value_in|sed 's/--help//g'|wc -m) == 0" 
	"$(echo -n $value_in|sed 's/--list//g'|wc -m) == 0"
	"$(echo -n ${#reports[@]}) == 0" );

logic=( '"" "pInone"'
	'"" "pIhelp"'
	'"" "pIlist"'
	'"pIdf" "pInone"' );


function pInone() {
    lEnd=0;
    clear;
    echo;
    echo -e ${msg[34]}"\n"${msg[35]}"\n"${msg[36]}"\n"${msg[37]}"\n"${msg[38]}"\n"${msg[39]};
    echo -e ${msg[40]}"\n"${msg[41]}"\n"${msg[48]} $version;
    exit 0;
}

function pIhelp() {
    lEnd=0;
    clear;
    echo;
    echo -e ${msg[35]}"\n"${msg[36]}"\n"${msg[37]}"\n"${msg[38]}"\n"${msg[39]};
    echo -e ${msg[40]}"\n"${msg[41]}"\n"${msg[48]} $version;
    exit 0;
}

function pIlist() {
    lEnd=0;
    info_free_mem=0;
    info_total_mem=0;
    input_unit=( "$free_mem" "info_free_mem" "1" );
    Kb;
    input_unit=( "$total_mem" "info_total_mem" "1" );
    Kb;
    echo "==============================================================...";
    echo "${msg[32]} $info_total_mem""Mb ${msg[33]} $info_free_mem""Mb";
    echo "==============================================================...";
    for ((rpt_index=0; rpt_index != ${#reports[@]}; rpt_index++))
	do
	echo  "${reports[$rpt_index]}";
    done
    echo "--------------------------------------------------------------...";
    exit 0;
}

## default function last eXlogic..
function pIdf() {
    for ((rpt_index=0; rpt_index != ${#reports[@]}; rpt_index++))
	do
    echo   "${reports[$rpt_index]}";
    done
    exit 0;
    }
eXlogic;
}

##--@F Check the program dependency
function checkDep() {
# This installation check jq
if [ $(echo $zr_jq|grep jq|wc -m) = 0 ]
    then
    ## lang messages if yes then lang else us...
    reports=();
    reports[${#reports[@]}]=${msg[6]};
    makeErr;
fi
}

##--@F read locale messages
function loadMsg() {
 # test enable file messages
if [ ! -f $zmsg ]
    then
    reports=();
    reports[${#reports[@]}]="$zmsg - file not found!";
    makeErr;
fi

# read msg
if [[ ! $(cat $zmsg|grep "$lang"|wc -m) == 0 ]]
    then
        index_msg="$(cat $zmsg | jq '."'$lang'".msg[]'|wc -l)";
        if [[ ! "$index_msg" == "0" ]]||[[ "$index_msg" == "${#set_msg[@]}" ]]
            then
                for (( m_index=0; m_index != $index_msg; m_index++)) 
                do
                eval st_in_msg="(" ${set_msg[$m_index]} ")";
                if [ "${st_in_msg[1]}" != "0" ]
                    then
                    read_msg=$(cat $zmsg | jq '."'$lang'".msg['$m_index']'| sed 's/\"//g');
                    msg[$m_index]="$read_msg";
                    else
                    msg[$m_index]="";
                fi
                done
            else
                reports=();
                reports[${#reports[@]}]="$zmsg - Incorrect file format or empty!";
                makeErr;
        fi
    fi
}

##--@F step operation
function readConf() {
# test enable file zramraid.conf
if [ ! -f $zpath/$zconfig ]
    then
    reports=();
    reports[${#reports[@]}]=${msg[7]};
    makeErr;
fi
# read config
for (( rd_index=0; rd_index !=${#zdm_vars[@]}; rd_index++)) 
 do
    read_key=$(cat $zpath/$zconfig | jq '.md[].'${json_key[$rd_index]}| sed 's/\"//g');
    eval ${zdm_vars[$rd_index]}="(" $read_key ")";
done
log=$(cat $zpath/$zconfig | jq '.log'| sed 's/\"//g');

## test free memory
value_mem=$(cat $zpath/$zconfig | jq '.limit_free_mem.value_size'| sed 's/\"//g');

value_in="$value_mem";
iFs=(	"$(echo -n $value_in|wc -m) == 0"
	"$(echo -n $value_in|sed 's/%//g'|wc -m) == 0" 
	"$(echo -n $value_in|sed 's/Kb//g'|wc -m) == 0" );
logic=( '"" "lmem_Err"'
	'"" "lmem_Per"'
	'"lmem_Err" "lmem_Kb"' );

lmem_Err() {
reports=();
reports[${#reports[@]}]="${msg[29]} $value_mem /or null - ${msg[10]}(${msg[30]}:Kb,%)";
makeErr;
    }

lmem_Per() {
lEnd=0;
test_read_mem=0;
input_unit=( "$free_mem" "test_read_mem" );
Kb;
math_unit=$(echo "scale=2; $(echo "scale=2; $test_read_mem/100"|bc -lq)*$(cat $zpath/$zconfig | jq '.limit_free_mem.size'| sed 's/\"//g')"|bc -lq|sed 's/\./ /g'|awk '{print$1}');
## -"

if (( "$math_unit" < 0 ))||[[ "$math_unit" == "" ]]||[[ ! "$math_unit" =~ ^([0-9]+)$ ]]
	then
	reports=();
	reports[${#reports[@]}]="${msg[29]} $value_mem /or null - ${msg[10]}(${msg[30]}:Kb,%)";
	makeErr;
	else
	limit_mem=$math_unit;
	input_unit=( "$math_unit" "info_limit_mem" );
	Byte;
	math_unit=$info_limit_mem;
	input_unit=( "$math_unit" "info_limit_mem" "1" );
	Kb;
fi
    }

lmem_Kb() {
lEnd=0;
input_unit=( "$(cat $zpath/$zconfig | jq '.limit_free_mem.size'| sed 's/\"//g')" "math_unit" );
Kb;
limit_mem=$math_unit;
input_unit=( "$math_unit" "info_limit_mem");
Mb;
    }
eXlogic;
}


function testMd() {
# test the md number parameters for errors and busy in system for add md

if (( "$set_id" < 0 ))||[[ "$set_id" == "" ]]||[[ ! "$set_id" =~ ^([0-9]+)$ ]]
	then
	reports=(); 
	reports[${#reports[@]}]="${msg[21]}$set_id - ${msg[10]}";
	makeErr;
    fi
    if [ "$($zr_blkid /dev/md$set_id|grep $set_id)" ]
	then
	reports=(); 
	reports[${#reports[@]}]="${msg[21]}$set_id - ${msg[11]}";
	makeErr;
    fi
# test  the duble number md from config
test_dub=( $(echo -e  ${id_zmd[@]}|tr " " "\n"|sort|tr "\n" " ") );

for (( dub_index=0; dub_index != ${#id_zmd[@]}; dub_index++ )) 
 do
	dubtest_index=$(($dub_index+1));
	if [[ ! $dubtest_index > $((${#id_zmd[@]}-1)) ]]
	    then 
		if [[ $((${test_dub[$dubtest_index]}-${test_dub[$dub_index]})) == 0 ]];
		 then
		    ## duble from config
		    reports=(); 
		    reports[${#reports[@]}]="${msg[21]}${id_zmd[$(($dub_index+1))]} - ${msg[12]}";
		    makeErr;
		fi
		
	    fi

	if [[ $((${test_dub[$dub_index]}-$set_id)) == 0 ]]
	    then
		## duble input end from config
		    reports=(); 
		    reports[${#reports[@]}]="${msg[21]}$set_id - ${msg[12]}";
		    makeErr;
		fi

done

}

function testImage() {

total_size_images=0;
eval tmp_date="(" $(echo -e $set_image|sed 's,/,\, ,g'|cut -c 2-) ")";
test_path=$(echo $set_image|sed 's,'${tmp_date[$((${#tmp_date[@]}-1))]}',,g');

# test enable file images
if [ ! -f $test_path${tmp_date[$((${#tmp_date[@]}-1))]} ]
	    then
	    reports=(); 
	    reports[${#reports[@]}]="${msg[22]}$set_image - ${msg[13]}";
	    makeErr;
	fi

function new_add() {
test_size_images=$(stat -c%s $test_path${tmp_date[$((${#tmp_date[@]}-1))]});
}

function sum_img() {
#echo "summ images...";
## the sum size images 
for (( image_index=0; image_index != ${#image_zmd[@]}; image_index++ )) 
    do
        if [ ! -f ${image_zmd[$image_index]} ]
            then reports[${#reports[@]}]="${msg[22]}${image_zmd[$image_index]} - ${msg[13]}";
        makeErr;
        fi
    size_zmd[$image_index]=$(stat -c%s ${image_zmd[$image_index]});
    done
# test size image end size zram ...
for (( im_index=0; im_index != ${#image_zmd[@]}; im_index++ )) 
    do
        total_size_images=$(($total_size_images+${size_zmd[$im_index]}));
    done
size_new_image=$(stat -c%s $test_path${tmp_date[$((${#tmp_date[@]}-1))]});
test_size_images=$(($total_size_images+$size_new_image));
}

function add_false() {
    input_unit=( "$test_size_images" "math_unit" "1" );
    Kb;
    img_msg=$math_unit;
    input_unit=( "$limit_mem" "math_unit" "1" );
    Kb;
    mem_msg=$math_unit;
    reports=(); 
    reports[${#reports[@]}]="${msg[22]}$set_image - ${msg[14]}";
    reports[${#reports[@]}]="${msg[23]}$img_msg""Kb > ${msg[20]}$mem_msg""Kb";
    makeErr;
}
iFs=( "$(echo -n ${#image_zmd[@]}) > 0" );
logic=( '"new_add" "sum_img"' );
eXlogic;

iFs=( "$(echo -n $test_size_images) <= $limit_mem" );
logic=( '"add_false" ""' );
eXlogic;

}

## input parameters
function inPut() {

function inMd() {
lEnd=0;
eval set_params="(" $(echo -e $params|sed 's/:/ /') ")";

if [ $(($(echo -n ${set_params[0]}|grep -o md|wc -m)-1)) == 2 ]
    then  
        set_id=$(echo -e ${set_params[0]}|awk '{print$1}'|sed 's/\md//g');
        if [[ "$set_id" == "" ]]||[[ ! "$set_id" =~ ^([0-9]+)$ ]]||(( "$set_id" < 0 ))
            then
                reports=();
                reports[${#reports[@]}]=${msg[10]};
                makeErr;
            else
                reports=();
                set_image=${set_params[1]};
        fi
    else
        reports=();
        reports[${#reports[@]}]=${msg[10]};
        makeErr;
fi
}

function inLimit() {
lEnd=0;
set_size=$(echo $params|sed 's/%//g'|sed 's/Kb//g');
if [[ "$set_size" == "" ]]||[[ ! "$set_size" =~ ^([0-9]+)$ ]]||(( "$set_size" <= 0 ))
    then 
        reports=();
        reports[${#reports[@]}]=${msg[29]};
	reports[${#reports[@]}]=${msg[39]};
        makeErr;
    else
    set_type=$(echo $params|sed 's/'"$set_size"'//g');
    if [[ "$set_type" == "%" ]]||[[ "$set_type" == "Kb" ]]
        then
	set_size_limit=$set_size;
	set_type_limit=$set_type;
        else
        reports=();
        reports[${#reports[@]}]=${msg[29]};
	reports[${#reports[@]}]=${msg[39]};
        makeErr;
        fi
    fi
}

function noSwitch() {
lEnd=0;
reports=();
    reports[${#reports[@]}]=${msg[30]};
    reports[${#reports[@]}]=${msg[37]};
    reports[${#reports[@]}]=${msg[38]};
    reports[${#reports[@]}]=${msg[40]};
    makeErr;
}

iFs=( "${set_opt[1]} == 1" "${set_opt[2]} == 1" "${set_opt[3]} == 1" "${set_opt[4]} == 1" );
logic=( '"" "inMd"' '"" "inMd"' '"" "inLimit"' '"noSwitch" "inMd"' );
eXlogic;
}

## create empty config
function confEmpty() {

function confNew(){
        echo  '{'>$zpath/$zconfig
        echo -e '"info":"id - md[id], image - is the path to the media to mount",\n'>>$zpath/$zconfig
        echo -e '"log":"/var/log/syslog",\n'>>$zpath/$zconfig
        echo  '"limit_free_mem":{'>>$zpath/$zconfig
        echo  '"info":"size - the parameter 10-100% or 1024Kb...; Caution - the limit use free memory!",'>>$zpath/$zconfig
        echo  '"size":"90",'>>$zpath/$zconfig
        echo -e '"value_size":"%"},\n'>>$zpath/$zconfig
        echo  '"md":['>>$zpath/$zconfig
        echo  '   ]'>>$zpath/$zconfig
        echo -e '}'>>$zpath/$zconfig
    }

if [ ! -f $zpath/$zconfig ]
    then
        confNew;
    else
        cp $zpath/$zconfig $zpath/$(date +%H_%M)"-zramraid.old">/dev/null;
        confNew;
fi
}

function addMd() {
local tdate=$(date +%j);
cat $zpath/$zconfig|jq -c '.md|=.+[{"id":"'$set_id'","info":"","image":"'$set_image'"}]'|
jq '.'>$zpath/$tdate$zconfig && cat $zpath/$tdate$zconfig>$zpath/$zconfig && rm -f $zpath/$tdate$zconfig;
}

## del md from config
function delMd() {
local tdate=$(date +%j);
local del_value=$(cat $zpath/$zconfig|jq -c '.md[]|select (.id == "'$set_id'")');
#'
if [[ ! "$del_value" ]]
	then 
	    reports=();
	reports[${#reports[@]}]="${msg[29]}: md$set_id - ${msg[9]}";
	makeErr;
	else
	cat $zpath/$zconfig|jq -c '.md|=.-['$del_value']'|jq '.'>$zpath/$tdate$zconfig && cat $zpath/$tdate$zconfig>$zpath/$zconfig && rm -f $zpath/$tdate$zconfig;
fi
}

## report config
function reportConf() {
	reports=();
for (( report_index=0; report_index != ${#id_zmd[@]}; report_index++ ))
 do
    reports[${#reports[@]}]="config md: ${id_zmd[$report_index]}";
    reports[${#reports[@]}]="info md: ${info_zmd[$report_index]}";
    if (( $(stat -c%s ${image_zmd[$report_index]}) > 1024 ))
	then
	    input_unit=( "$(stat -c%s ${image_zmd[$report_index]})" "math_unit" "1" );
	    Kb;
	    rep_size="$math_unit""Kb";
	else
	    rep_size="$(stat -c%s ${image_zmd[$report_index]})b";
	fi
    reports[${#reports[@]}]="size md: $rep_size";
    reports[${#reports[@]}]="image md: ${image_zmd[$report_index]}";
    reports[${#reports[@]}]="~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~";
done
	reports[${#reports[@]}]="${msg[20]} $info_limit_mem Mb";
}

## setting limit memory
function setLimitMem() {
local tdate=$(date +%j);
test_set_mem=0;
test_free_mem=0;

if [[ "$set_type_limit" == "%" ]]
    then
	input_unit=( "$free_mem" "math_unit" );
	Kb;
	test_set_mem=$(echo "scale=2; $(echo "scale=2; $math_unit/100"|bc -lq)*$set_size_limit"|bc -lq|sed 's/\./ /g'|awk '{print$1}');
	#-"
	fi
if [[ "$set_type_limit" == "Kb" ]]
    then
	math_unit=$set_size_limit;
	input_unit=( "$math_unit" "test_set_mem" );
	Kb;
	fi
if [[ ! "$test_set_mem" == 0 ]]
    then
	math_unit=$free_mem;
	input_unit=( "$math_unit" "test_free_mem" );
	Kb;
    else
	reports=();
        reports[${#reports[@]}]=${msg[29]};
	reports[${#reports[@]}]=${msg[39]};
        makeErr;
    fi

if ((  "$test_free_mem" > "$test_set_mem" ))
    then
## add date
local input_date_limit=$(cat $zpath/$zconfig|jq -c '.limit_free_mem|.size="'"$set_size_limit"'"|.value_size="'"$set_type_limit"'"');
cat $zpath/$zconfig|jq -c ' del (.limit_free_mem)'|
	jq '.'>$zpath/$tdate$zconfig && cat $zpath/$tdate$zconfig>$zpath/$zconfig && rm -f $zpath/$tdate$zconfig;
## add
cat $zpath/$zconfig|jq -c '.limit_free_mem|=.+'"$input_date_limit"''|
        jq '.'>$zpath/$tdate$zconfig && cat $zpath/$tdate$zconfig>$zpath/$zconfig && rm -f $zpath/$tdate$zconfig;
    else
	reports=();
	reports[${#reports[@]}]="${msg[20]}$set_size_limit$set_type_limit  > ${msg[33]}$free_mem""Kb";
        reports[${#reports[@]}]=${msg[29]};
	reports[${#reports[@]}]=${msg[39]};
        makeErr;
fi
}

## add info device md
function addInfoMd() {
if [[ $(cat $zpath/$zconfig|jq -c '.md[]|select(.id == "'$set_id'")') ]]
#-'
    then
local Sinput=();
clear
echo "--------------------------------------------------";
echo "${msg[45]}";
echo "--------------------------------------------------";
read Sinput;
local tdate=$(date +%j);
local data_info="$(cat $zpath/$zconfig|jq -c '.md[]|select(.id == "'$set_id'")|.info ="'"'$(echo ${Sinput[@]})'"'"')";
delMd;
cat $zpath/$zconfig|jq -c '.md|=.+['"$data_info"']'|
        jq '.'>$zpath/$tdate$zconfig && cat $zpath/$tdate$zconfig>$zpath/$zconfig && rm -f $zpath/$tdate$zconfig;
    else
    reports=();
    reports[${#reports[@]}]=${msg[9]};
    makeErr;
fi
}

##--@F step operation
function testId() {
if (( ! $(id|grep "root"|wc -m) ))
        then
        reports=(); 
        reports[${#reports[@]}]="${msg[47]}";
        makeErr;
fi
}

##--@F executor
function executor() {
if [[ ${#execute_func[@]} -eq 0 ]] 
    then echo "exit";
	 exit 0; 
fi
for ((ex_index=0; ex_index != ${#execute_func[@]}; ex_index++))
 do
    ## !! debug operation...
    ##echo "execution: function ${execute_func[ex_index]}"
 ${execute_func[ex_index]};
done

}

##- Begin zramraid
case "$option" in

## create default config +
"--config-default" | "--config-default" )
execute_func=( ${operation_createdef[@]} );
executor;
exit 0
;; 

## add md
"--add" | "--add" )
set_opt[1]="1";
execute_func=( ${operation_add[@]} );
executor;
exit 0
;;

## del md
"--del" | "--del" )
set_opt[2]="1";
execute_func=( ${operation_del[@]} );
executor;
exit 0
;;

## list md +
"--list" | "--list" )
execute_func=( ${operation_list[@]} );
executor;
exit 0
;;

## limit memory
"--limit-mem" | "--limit-mem" )
set_opt[3]="1";
execute_func=( ${operation_mem[@]} );
executor;
exit 0
;;

## md info
"--info-md" | "--info-md" )
set_opt[4]="1";
execute_func=( ${operation_mdinfo[@]} );
executor;
exit 0
;;

## help +
"--help" | "--help" )
execute_func=( ${operation_help[@]} );
executor;
exit 0
;;

* )
# selecting defaults. +
execute_func=( ${operation_help[@]} );
executor;
exit 1
;;
esac