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

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

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
    chmod 4555 ${PKG_PREFIX}/OMRONWnn6/Wnn6fbsd/jserver
    chmod 4555 ${PKG_PREFIX}/OMRONWnn6/Wnn6fbsd/wnnds

    ## 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 'case $1 in' >> ${startup_script};
      echo 'start)' >> ${startup_script};
      echo '    if [ -f $wnn ]; then' >> ${startup_script};
      echo "        echo -n ' ${wnnname}'" >> ${startup_script};
      echo '        $wnn' >> ${startup_script};
      echo "    fi" >> ${startup_script}; 
      echo '    ;;' >> ${startup_script};
      echo 'stop)' >> ${startup_script};
      echo '    killall $wnn' >> ${startup_script};
      echo "    echo -n ' ${wnnname}'" >> ${startup_script};
      echo '    ;;' >> ${startup_script};
      echo '*)' >> ${startup_script};
      echo '    echo "Usage: `basename $0` {start|stop}" >&2' >> ${startup_script};
      echo '    ;;' >> ${startup_script};
      echo 'esac' >> ${startup_script};
      echo 'exit 0' >> ${startup_script};
      chmod 755 ${startup_script}
      chown bin:bin ${startup_script}
    fi
    ;;
esac