#! /bin/bash

# Install missing packages
DEB_PACKAGES_LIST="screen libnet-ldap-perl libxml-libxml-perl libgearman-client-perl libmailtools-perl libmail-sendmail-perl libdatetime-format-iso8601-perl libnet-ip-perl libsys-gamin-perl libdigest-sha-perl libemail-mime-perl"
ARCH_PACKAGES_LIST="screen perl-io-socket-ssl perl-email-simple perl-email-mime perl-term-readkey perl-ldap perl-lwp-protocol-https perl-datetime-format-iso8601 perl-net-ip" # aur/perl-sys-gamin
GENTOO_PACKAGES_LIST="app-misc/screen dev-perl/IO-Socket-SSL dev-perl/Email-Simple dev-perl/Email-MIME dev-perl/TermReadKey dev-perl/perl-ldap dev-perl/LWP-Protocol-https dev-perl/DateTime-Format-ISO8601 dev-perl/Net-IP"
FBSD_PACKAGES_LIST="screen p5-IO-Socket-SSL p5-Email-Simple p5-Email-MIME p5-Term-ANSIColor p5-Term-ReadKey p5-LWP-Protocol-https p5-DateTime-Format-ISO8601 p5-Net-IP p5-Sys-Gamin"

KERNEL=`uname -s`

if [ "$KERNEL" = "FreeBSD" ]
then

    for PK in `echo $FBSD_PACKAGES_LIST`
    do
	if ! pkg info "$PK" > /dev/null 2> /dev/null
	then
	    if ! PACKAGESITE="http://canon.acu.epita.fr/repo-lab" pkg install "$PK"
	    then
		echo "Error during installation of $PK"
		exit 1
	    fi
	fi
    done

    if ! getent passwd | grep "intradmin:" > /dev/null 2> /dev/null
    then
	pw useradd intradmin -u 942 -d /data -s /bin/false
    fi

elif [ "$KERNEL" = "Linux" ]
then

    if [ -f "/etc/debian_version" ]
    then

	if ! whereis dpkg > /dev/null 2> /dev/null
	then
	    if ! aptitude install dpkg
	    then
		echo "Error during installation of $PK"
		exit 1
	    fi
	fi

	for PK in $DEB_PACKAGES_LIST
	do
	    if ! dpkg -l | grep "^ii" | grep "$PK" > /dev/null 2> /dev/null
	    then
		aptitude install "$PK"
	    fi
	done


	# Add intradmin user if missing
	if ! getent passwd | grep "intradmin:" > /dev/null 2> /dev/null
	then
	    useradd --shell /bin/false --uid 942 intradmin &&
	    mkdir -p /home/intradmin
	fi

	chown -R intradmin:intradmin /home/intradmin

    elif [ -f "/etc/arch-release" ]
    then

	for PK in $ARCH_PACKAGES_LIST
	do
	    if ! pacman -Qi "$PK" > /dev/null 2> /dev/null
	    then
		if ! pacman -S "$PK"
		then
		    echo "Error during installation of $PK"
		    exit 1
		fi
	    fi
	done

    elif [ -f "/etc/gentoo-release" ]
    then

	for PK in $GENTOO_PACKAGES_LIST
	do
	    if ! equery list "$PK" > /dev/null 2> /dev/null
	    then
		if ! emerge "$PK"
		then
		    echo "Error during installation of $PK"
		    exit 1
		fi
	    fi
	done

    else

	echo "Unsupported GNU/Linux distribution :("
	exit 1;

    fi

else

    echo "Unsupported operating system :("
    exit 1;

fi

# Git ?
if egrep '^git:' /etc/passwd > /dev/null
then
    mkdir -p /var/log/hooks/ &&
    chown git /var/log/hooks/
fi

echo "System ready!"