#!/bin/sh
# an installation script for Wnn6

check_pw()
{
    if which -s pw; then
	:
    else
	cat <<EOF

This system looks like a pre-2.2 version of FreeBSD.  We see that it
is missing the "pw" utility.  We need this utility.  Please get and
install it, and try again.  You can get the source from:

  ftp://ftp.freebsd.org/pub/FreeBSD/FreeBSD-current/src/usr.sbin/pw.tar.gz

EOF
	exit 1
    fi
}

ask() {
    local question default answer

    question=$1
    default=$2
    if [ -z "${PACKAGE_BUILDING}" ]; then
	read -p "${question} (y/n) [${default}]? " answer
    fi
    if [ x${answer} = x ]; then
	answer=${default}
    fi
    echo ${answer}
}

yesno() {
    local dflt question answer

    question=$1
    dflt=$2
    while :; do
	answer=$(ask "${question}" "${dflt}")
	case "${answer}" in
	[Yy]*)		return 0;;
	[Nn]*)		return 1;;
	esac
	echo "Please answer yes or no."
    done
}

case $2 in
PRE-INSTALL)

    ## Hack /etc/services ##
    FILE="/etc/services"
    # check
    OK=no
    HAS_WNN6=no
    COUNT=1
    for i in `grep wnn6 $FILE `; do
	if [ $COUNT = 1 ] && [ X"$i" = X"wnn6" ]; then
	    HAS_WNN6=yes
	elif [ $COUNT = 2 ] && [ $HAS_WNN6 = yes ] && \
		[ X"$i" = X"22273/tcp" ]; then
	    OK=yes
	    break
	fi
	COUNT=`expr ${COUNT} + 1`
    done
    # add an entry for wnn6 to /etc/services
    if [ $OK = no ]; then
	echo "This system has no entry for Wnn6 in ${FILE}"
	if yesno "Would you like to add it automatically?" y; then
	    mv ${FILE} ${FILE}.bak
	    (grep -v wnn6 ${FILE}.bak ; \
		echo "wnn6		22273/tcp	# Wnn6") >> ${FILE}
	    rm ${FILE}.bak
	else
	    echo "Please add 'wnn6 22273/tcp' into ${FILE}, and try again."
	    exit 1
	fi
    fi

    ## Hack /etc/master.passwd ##
    # check
    id_69=`id -u 69 2> /dev/null`
    id_wnn=`id -u wnn 2> /dev/null`
    if [ X"$id_wnn" = X69 ];then
	exit 0
    elif [ X"$id_69" != X ]; then
cat <<EOF

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
This system already has an account whose name is not 'wnn' and ID
number is 69.

   '`id 69`'

For Wnn6 in this port or package, ID number of 'wnn' has to be 69.
Please try again after you delete the account.
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
EOF
	exit 1
    elif [ X"$id_wnn" != X ]; then
	cat <<EOF

This system has an 'wnn' account whose ID number is $id_wnn.  It seems
that Wnn4.2 has been already installed.  For Wnn6 in this ports or
package, ID number of 'wnn' has to be 69.  So we do the following two
things:

1) You should delete the account.

2) It seems that all of files or directories for Wnn4.2 are in
    ${PKG_PREFIX}/lib/wnn and ${PKG_PREFIX}/bin.  You should change these ID
    number from '$id_wnn' to '69'.

    Notice: After doing 1) and 2), we will create a new 'wnn' account
	    whose ID number is '69'.

EOF
	if yesno "Would you like to do the above things automatically" y; then
	    # We need a command 'pw(8)'
	    check_pw
	    pw userdel wnn
	    if [ $? != 0 ]; then
		echo ""
		echo "Cannot delete it. Please do it, and try again."
		exit 1
	    fi
	    find ${PKG_PREFIX}/lib/wnn ${PKG_PREFIX}/bin \
		-user $id_wnn -exec chown 69 {} \;
	else
	    echo "Please do those, and try again."
	    exit 1
	fi
    fi

    # add an account 'wnn' to this system
    echo ""
    echo "You need an account 'wnn' whose ID number is 69"
    if yesno "Would you like to create it automatically?" y; then
	# We need a command 'pw(8)'
	check_pw
	pw useradd wnn -u 69 -g 7 -h - -d /nonexistent \
		-s /nonexistent -c Wnn6 || exit
    else
	echo "Please create it, and try again."
	exit 1
    fi
    ;;

POST-INSTALL)

    mkdir -p /usr/local/bin
    mkdir -p /usr/local/lib
    cd /usr/local/bin; rm -f Wnn6; ln -s ${PKG_PREFIX}/OMRONWnn6/Wnn6fbsd Wnn6
    cd /usr/local/lib; rm -f wnn6; ln -s ${PKG_PREFIX}/OMRONWnn6/wnn6fbsd wnn6
    if [ X${PKG_PREFIX} != X"/usr/local" ]; then
	echo
	echo "Warning!!"
	echo "We made symbolic links from \"/usr/local/bin/Wnn6\" to \"${PKG_PREFIX}/OMRONWnn6/Wnn6fbsd\""
	echo "and from \"/usr/local/lib/wnn6\" to \"${PKG_PREFIX}/OMRONWnn6/wnn6fbsd\""
    fi
    cd ${PKG_PREFIX}/OMRONWnn6/wnn6fbsd/ja_JP; rm -f dic; ln -s ../../wnn6dic dic
    chown -R wnn ${PKG_PREFIX}/OMRONWnn6

    ## create a startup script ##
    wnnserver=/usr/local/bin/Wnn6/jserver
    wnnname=Wnn6
    startup_script=${PKG_PREFIX}/etc/rc.d/${wnnname}.sh
    if [ ! -f ${startup_script} ]; then
      echo "Installing ${startup_script} startup file."
      echo '#!/bin/sh' > ${startup_script};
      echo "wnn=${wnnserver}" >> ${startup_script};
      echo 'if [ -f $wnn ]; then' >> ${startup_script};
      echo "    echo -n ' ${wnnname}'" >> ${startup_script};
      echo '    $wnn' >> ${startup_script};
      echo "fi" >> ${startup_script};
      chmod 755 ${startup_script}
      chown bin.bin ${startup_script}
    fi
    ;;
esac