#!/bin/sh
#
# The contents of this file are subject to the terms of the Common Development and
# Distribution License (the License). You may not use this file except in compliance with the
# License.
#
# You can obtain a copy of the License at legal/CDDLv1.0.txt. See the License for the
# specific language governing permission and limitations under the License.
#
# When distributing Covered Software, include this CDDL Header Notice in each file and include
# the License file at legal/CDDLv1.0.txt. If applicable, add the following below the CDDL
# Header, with the fields enclosed by brackets [] replaced by your own identifying
# information: "Portions Copyright [year] [name of copyright owner]".
#
# Copyright 2013-2015 ForgeRock AS.
# Portions Copyright 2026 3A Systems, LLC

# =================================
# RPM Pre Uninstall Script (%preun)
# =================================

# $1 is 0 for an uninstallation and 1 for an upgrade.

# The instance root may have been relocated with instance.loc (split layout):
# resolve it the way the server scripts (_script-util.sh) do. Empty-file reads
# are tolerated; the result then simply fails the file checks below.
resolve_instance_root() {
    INSTANCE_ROOT="%{_prefix}"
    if [ -f /etc/opendj/instance.loc ] ; then
        read INSTANCE_ROOT < /etc/opendj/instance.loc || true
    elif [ -f "%{_prefix}"/instance.loc ] ; then
        read _loc < "%{_prefix}"/instance.loc || true
        case "$_loc" in
            /*) INSTANCE_ROOT=$_loc ;;
            *)  INSTANCE_ROOT="%{_prefix}"/$_loc ;;
        esac
    fi
}

if [ "$1" = "0" ] ; then
    echo "Pre Uninstall - uninstall"
    resolve_instance_root
    # Stop and unregister the service. "disable" only manipulates symlinks, so
    # it runs without a booted-systemd gate too (chroot/image builds) - or the
    # wants link would dangle in the resulting image.
    if command -v systemctl >/dev/null 2>&1 ; then
        if [ -d /run/systemd/system ] ; then
            systemctl stop opendj.service >/dev/null 2>&1 || true
        fi
        systemctl disable opendj.service >/dev/null 2>&1 || true
    fi
    # Stop a still-running instance directly - keyed on a live PID, so an
    # instance that was never upgraded is stopped too. Run the tree's own
    # script as the owner of the server *process*, never as root for a
    # non-root server.
    SERVER_PID=$(cat "$INSTANCE_ROOT/logs/server.pid" 2>/dev/null || true)
    if [ -x "%{_prefix}"/bin/stop-ds ] && [ -n "$SERVER_PID" ] && [ -d "/proc/$SERVER_PID" ] ; then
        OWNER=$(stat -c '%%U' "/proc/$SERVER_PID" 2>/dev/null || echo root)
        if [ "$OWNER" != root ] && command -v runuser >/dev/null 2>&1 ; then
            runuser -u "$OWNER" -- "%{_prefix}"/bin/stop-ds || true
        else
            "%{_prefix}"/bin/stop-ds || true
        fi
        # The package files must not be deleted under a live JVM: verify the
        # stop happened (the stop errors above are deliberately swallowed).
        for _i in 1 2 3 4 5 6 7 8 9 10 ; do
            [ -d "/proc/$SERVER_PID" ] || break
            sleep 2
        done
        if [ -d "/proc/$SERVER_PID" ] ; then
            echo "Unable to stop the running OpenDJ server (pid $SERVER_PID); stop it manually and retry." >&2
            exit 1
        fi
    fi
    # A stale restart flag must not survive into a later re-install.
    rm -f "$INSTANCE_ROOT/logs/status"
    if [ -e /etc/init.d/opendj ] ; then
        /sbin/chkconfig --del opendj || true
    fi
    # Clean up the legacy PID symlink created by the SysV init script.
    [ -h /run/opendj.pid ] && rm -f /run/opendj.pid || true
    [ -h /var/run/opendj.pid ] && rm -f /var/run/opendj.pid || true
fi