#!/bin/sh

set -e

[ "$DEBIAN_SCRIPT_DEBUG" ] && set -vx

case "$1" in
    configure)
    # continue below
    ;;

    abort-upgrade|abort-remove|abort-deconfigure)
    exit 0
    ;;

    *)
    echo "postinst called with unknown argument \`$1'" >&2
    exit 0
    ;;
esac


# Load debconf
. /usr/share/debconf/confmodule
db_version 2.0

# Include CARNet functions
. /usr/share/carnet-tools/functions.sh

PKG="webalizer-cn"
WDIR="/var/www/webalizer"
WHTPASSWD="$WDIR/.htpasswd"
WCONF="/etc/webalizer/webalizer.conf"
WCONFBAK=`basename $WCONF`
oldreporttitle="usage statistics for"
reporttitle="Statistika pristupa za"

customized=0
need_restart=0

if [ -f "$WCONF" ]; then

    # Backup first.
    if cp_check_and_backup "$WCONF"; then
        cp_echo "CN: Old $WCONF saved as \"/var/backups/$WCONFBAK.bak\"."
    fi

    # Check for OutputDir
    temp=`awk 'tolower($1) == "outputdir" { print $2; }' $WCONF | tail -n 1`
    if [ "$temp" != "$WDIR" ]; then
        cp_echo "CN: Found custom OutputDir value: $temp"
        db_set webalizer/directory "$temp" || true
        customized=1
    fi

    # Check for ReportTitle
    temp=`awk 'tolower($1) == "reporttitle" { for(i=2; i<NF; i++) \
          printf("%s ", tolower($i)); print tolower($(NF)) }' $WCONF | tail -n 1`
    if [ "$temp" = "$oldreporttitle" ]; then
        temp_re="^[[:space:]]*ReportTitle[[:space:]]*${oldreporttitle}$"
        cp_check_and_sed "." \
            "s/$temp_re/ReportTitle	${reporttitle}/I" \
            "$WCONF" || true
        db_set webalizer/doc_title "$reporttitle" || true
        need_restart=1
    fi
else
    cp_echo "CN: Configuration file $WCONF is missing."
    customized=1
fi

db_stop || true


# Check Apache2 web server configuration and reload Apache2 web server.
#
if [ $need_restart -eq 1 ]; then
    if apache2ctl configtest 2>/dev/null; then
        invoke-rc.d apache2 force-reload || true
    else
        # Something is broken.
        cp_echo "CN: Your Apache2 configuration is broken."
        cp_echo "CN: Please, check the service after the installation finishes!"
    fi
fi


# Generate e-mail message with informations (username and password).
#
if [ $customized -eq 0 ]; then
    if [ ! -f "$WHTPASSWD" ]; then
        passwd="$(makepasswd --chars 8)"
        htpasswd -bcm $WHTPASSWD admin $passwd 2> /dev/null
        cp_echo ""
        cp_echo "CN: Webalizer URL is http://`hostname -f`/stats/"
        cp_echo "CN:            User: admin"
        cp_echo "CN:        Password: $passwd"
        cp_echo ""
        cp_echo "CN: Use \"htpasswd -m $WHTPASSWD admin\" to change it."
    else
        cp_echo "CN: File $WHTPASSWD already exists."
    fi
else
    cp_echo "CN: Skipping file $WHTPASSWD"
fi

# Mail root.
#
cp_mail "$PKG"

# dh_installdeb will replace this with shell code automatically
# generated by other debhelper scripts.

#DEBHELPER#

exit 0