#! /bin/bash

# Execute this script to generate the index, userid and passwd of a new user to the cluster. 
# The results are appended to the pre-existed file userpass.no.dat, which is then saved as a new file userpass.$(( 1 + $no )).dat

no=$(ls /share/apps/configrepo/users_data/userpass.*.dat |  awk -F'.' '{print $2}' | sort | awk 'END {print}')
if [ -z "$no" ]
then
echo 'userpass.*.dat does not exist. To create a mock one userpass.0.dat'
echo '0 mockuser0 1000 mockpassword' > /share/apps/configrepo/users_data/userpass.0.dat
no=0
fi
read -p "Enter new username : " user
newno=$(( $no + 1 ))

######### to generate global userid
coc-sshreachable
hosts=$(cat /share/tmp/ssh-reachable.dat)

rm -rf luid.dat
for rn in $hosts
do
#ssh $rn "/share/apps/local/bin/coc-uid" >> luid.dat
ssh -oStrictHostKeyChecking=no $rn "/share/apps/local/bin/coc-uid" >> luid.dat
done
userid=$(cat luid.dat | awk '{print $6}' | sort | uniq | awk 'END {print}')
echo last userid from all nodes is $userid
rm -rf luid.dat
######### end of to generate global userid

userid=$(( $userid + 1 ))
echo 'uid='$userid will be assigned
Index=$(( 1 + $(cat /share/apps/configrepo/users_data/userpass.$no.dat | awk 'END {print $1}') ))
echo 'Index=' $Index
passwd=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 9 | head -n 1)

echo $Index $user $userid $passwd > /share/apps/configrepo/users_data/newuser.dat
echo newuser.dat is created in /share/apps/configrepo/users_data/newuser.dat

#echo $Index $user $userid $passwd 'will be appended to' userpass.$newno.dat if it passes coc-check_user_global
rm -rf /share/apps/configrepo/users_data/addstatus_global.dat

/share/apps/local/bin/coc-check_user_global

if [ ! -f /share/apps/configrepo/users_data/addstatus_global.dat ]; then
	echo 'passes coc-check_user_global check'
	cp /share/apps/configrepo/users_data/userpass.$no.dat temp.dat
	echo  $Index $user $userid $passwd >> temp.dat
	mv temp.dat /share/apps/configrepo/users_data/userpass.$newno.dat
	echo $Index $user $userid $passwd are appended to /share/apps/configrepo/users_data/userpass.$newno.dat
else
#	cat /share/apps/configrepo/users_data/addstatus_global.dat;
	echo 'does not pass coc-check_user_global check.'
	rm -rf /share/apps/configrepo/users_data/newuser.dat
	echo newuser.dat is removed from /share/apps/configrepo/users_data/newuser.dat
fi