#!/bin/sh

set -e

multiarch=x86_64-linux-gnu
priority=1081
basedir=/usr/lib/jvm/java-8-openjdk-amd64
mandir=$basedir/man
jdiralias=java-1.8.0-openjdk-amd64
srcext=1.gz
dstext=1.gz
jdk_hl_tools='idlj jdeps wsimport rmic jinfo jsadebugd native2ascii jstat javac javah clhsdb jstack jrunscript javadoc jhat javap jar xjc hsdb schemagen jps extcheck jmap jstatd jdb serialver jfr wsgen jcmd jarsigner'

case "$1" in
configure)
    # obsolete tool
    if update-alternatives --list apt 2>/dev/null; then
	update-alternatives --remove-all apt || true
    fi

    if [ -z "$2" ]; then
	update_alternatives=y
    fi
    if [ -n "$multiarch" ] && [ -n "$2" ]; then
	for i in $jdk_hl_tools; do
	    if [ -z "$(update-alternatives --list $i 2>/dev/null | grep ^$basedir/)" ]; then
		update_alternatives=y
		break
	    fi
	done
    fi
    if [ "$update_alternatives" != y ] && [ $priority -gt 1060 ]; then
	for i in $jre_tools; do
	    oldp=$(update-alternatives --query java | awk -v b=$basedir '/^Alternative:/ && $2~b {p=1} /^Priority:/ && p {print $2; exit}')
	    if [ -n "$oldp" ] && [ "$oldp" -le 1060 ]; then
		update_alternatives=y
		break
	    fi
	done
    fi

    if [ "$update_alternatives" = y ]; then
    if [ -n "$multiarch" ] && [ "$DPKG_MAINTSCRIPT_ARCH" != $(dpkg --print-architecture) ]; then
	priority=$(expr $priority - 1)
    fi
    test -d /usr/share/man/man1 || mkdir -p /usr/share/man/man1
    for i in $jdk_hl_tools; do
	unset slave1 slave2 || true
        if [ -e $mandir/man1/$i.$srcext ]; then
	    slave1="--slave \
		/usr/share/man/man1/$i.$dstext \
                $i.$dstext \
                $mandir/man1/$i.$srcext"
	fi
        if false && [ -e $mandir/ja/man1/$i.$srcext ]; then
	    slave2="--slave \
		/usr/share/man/ja/man1/$i.$dstext \
                ${i}_ja.$dstext \
                $mandir/ja/man1/$i.$srcext"
	fi
        update-alternatives \
            --install \
            /usr/bin/$i \
            $i \
            $basedir/bin/$i \
            $priority \
	    $slave1 $slave2
    done
    fi # update alternatives

    ;;
esac



exit 0