#! /bin/sh
# postrm maintainer script for zoneminder

set -e

# Source the debconf stuff
if [ -f /usr/share/debconf/confmodule ]; then
    . /usr/share/debconf/confmodule
fi

apache_remove() {
    COMMON_STATE=$(dpkg-query -f '${Status}' -W 'apache2.2-common' 2>/dev/null | awk '{print $3}' || true)
    if [ -e /usr/share/apache2/apache2-maintscript-helper ] ; then
        . /usr/share/apache2/apache2-maintscript-helper
        apache2_invoke disconf zoneminder
    elif [ "$COMMON_STATE" = "installed" ] || [ "$COMMON_STATE" = "unpacked" ] ; then
        rm -f /etc/apache2/conf.d/zoneminder.conf
    fi
    rm -f /etc/apache2/conf-available/zoneminder.conf
    # Reload the web server
    deb-systemd-invoke reload apache2.service || true
}

# Source the dbconfig stuff
if [ -f /usr/share/dbconfig-common/dpkg/postrm ]; then
    . /usr/share/dbconfig-common/dpkg/postrm
    # Ask the user what do to with dbconfig when removing the package
    dbc_go zoneminder $@
fi

if [ "$1" = "remove" ] || [ "$1" = "purge" ]; then

    # Deconfigure the web server
    db_get zoneminder/webserver
    for webserver in $RET; do
        webserver=${webserver%,}
        # Currently we only support apache2
        if [ "$webserver" = "apache2" ] ; then
            apache_remove $1
        fi
    done

    # Remove dbconfig stuff added in postinst script
    rm -rf /usr/share/dbconfig-common/data/zoneminder

    # No need to manually remove the zm database, dbconfig take care of this
fi

if [ "$1" = "purge" ]; then

    # Delete a potential remaining file used in postinst script
    rm -f /etc/zm/zm.conf.postinst.bak

    # Ask the user if we have to remove the cache directory even if not empty
    if [ -d /var/cache/zoneminder ] \
      && [ ! $(find /var/cache/zoneminder -maxdepth 0 -type d -empty 2>/dev/null) ]; then
        RET=""
        db_input high zoneminder/ask_delete || true
        db_go || true
        db_get zoneminder/ask_delete
        if [ "$RET" = "true" ]; then
            RET=""
            db_input high zoneminder/ask_delete_again || true
            db_go || true
            db_get zoneminder/ask_delete_again
            if [ "$RET" = "true" ]; then
                rm -rf /var/cache/zoneminder
            fi
        fi
    fi
fi

#DEBHELPER#

# postrm rm may freeze without that
db_stop

exit 0