#!/bin/sh  -e

I2PHOME=/var/lib/i2p
I2P=/usr/share/i2p
I2PUSER=i2psvc

conffile="/etc/default/i2p"

update_config_file()
{
        db_field=$1
        config_field=$2
  
        RET=false
        db_get $db_field
        if [ -n "$RET" ] ; then
                if grep -q "^$config_field" $conffile ; then 
                        # keep any admin changes, while replacing the variable content
                        sed "s/^[ ]*$config_field=\".*\"/$config_field=\"$RET\"/" < $conffile > $conffile.new &&  
                        mv $conffile.new $conffile
                else
                        echo "$config_field=\"$RET\"" >> $conffile
                fi  
        fi  
}

# Source debconf library -- we have a Depends line
# to make sure it is there...
. /usr/share/debconf/confmodule
db_version 2.0


case "$1" in
	configure|reconfigure)
		if [ -f $conffile ] ; then
			sed -i -e 's/^[ ]*STARTI2P/RUN_DAEMON/g' $conffile
			if ! grep -q RUN_DAEMON $conffile ; then
				cat << EOF >> $conffile
# I2P daemon. If set to true, I2P will start automatically
# when your computer boots.
RUN_DAEMON="false"
EOF
			fi
			if ! grep -q I2PUSER $conffile ; then
				cat << EOF >> $conffile
# The user that runs the I2P daemon. By default this is set to i2psvc.
# You may want to change this to use a manually installed I2P profile.
I2PUSER="i2psvc"
EOF
			fi
		else
			cat << EOF >> $conffile
# Defaults for i2p initscript (/etc/init.d/i2p)
# This is a posix shell fragment

# [automatically edited by postinst, do not change line format ]
# Run 'dpkg-reconfigure -plow i2p' to change these values.

# I2P daemon. If set to true, i2p will start automatically when 
# the computer boots
RUN_DAEMON="false"

# The user that runs the I2P daemon. By default this is set to i2psvc.
# You may want to change this to use a manually installed I2P profile.
I2PUSER="i2psvc"
EOF
		fi
	update_config_file i2p/daemon	RUN_DAEMON
	update_config_file i2p/user	I2PUSER

	migrate_existing_user(){
		# Adjust the user/group in /etc/passwd, mainly for upgrades from old packages that didn't
		# create $I2PUSER as a system group/user
		usermod -c "I2P Router Daemon" -m -d $I2PHOME -g $I2PUSER -s "/bin/false" \
			-l $I2PUSER -e 1 > /dev/null 2>&1
		echo "Existing user migrated, home directory moved to $I2PHOME"
	}

	# Create user and group as a system user.
	adduser --system --quiet --group --home $I2PHOME $I2PUSER || migrate_existing_user

	[ -d /var/log/i2p ] || mkdir -m0750 /var/log/i2p
	chown -f -R $I2PUSER:adm /var/log/i2p

	# Has someone set the permissions with dpkg-statoverride? If so, obey them.
	if ! dpkg-statoverride --list $I2PHOME > /dev/null 2>&1
	then
		chown -f -R $I2PUSER:$I2PUSER $I2PHOME
		chmod -f u=rwx,g=rxs,o= $I2PHOME
	fi

	##if ! dpkg-statoverride --list $I2P > /dev/null
	##then
	##	chown -f -R $I2PUSER:$I2PUSER $I2P
	##fi  

	db_stop
;;
abort-upgrade|abort-remove|abort-deconfigure)
	echo "Aborting upgrade"
	exit 0
	;;
*)
        echo "postinst called with unknown argument \`$1'" >&2
                exit 0
                ;;
esac
	
#DEBHELPER#

exit 0