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

set -ex

# Source the debconf stuff
. /usr/share/debconf/confmodule

# Set the first version in which dbconfig-common was introduced in the package
dbc_first_version="1.28.0"

CONFIGFILE=/etc/zm/zm.conf

# Source the config file if exists
if [ -e $CONFIGFILE ]; then
    . $CONFIGFILE || true
else
    # Display a message and exit with error if no config file
    db_input high zoneminder/debconf_confmissingerror || true
    db_go || true
    exit 1
fi

if [ ! "$ZM_DB_TYPE" = "mysql" ]; then
    # Display a message and exit with error if wrong database type
    db_input high zoneminder/debconf_dbtypeerror || true
    db_go || true
    exit 1
fi

if [ -f /usr/share/dbconfig-common/dpkg/config ]; then

    # Currently we only support mysql database
    dbc_dbtypes="mysql"

    # Set authentication method to password
    dbc_authmethod_user="password"

    # Re-use data from ZM config file
    dbc_dbserver="$ZM_DB_HOST"
    dbc_dbname="$ZM_DB_NAME"
    dbc_dbuser="$ZM_DB_USER"

    # Source the dbconfig-common stuff
    . /usr/share/dbconfig-common/dpkg/config
fi

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

    # Ask the user if debconf shall be used to configure the package
    db_input high zoneminder/debconf_install || true
    db_go || true

    # Exit if the user does not want to use debconf
    db_get zoneminder/debconf_install
    [ "$RET" = "false" ] && exit 0

fi

if [ "$1" = "configure" ] || [ "$1" = "reconfigure" ]; then

DB_OK=false

# Ask the user if the database shall be installed locally or remotely
db_input high zoneminder/debconf_dblocation || true
db_go || true
db_get zoneminder/debconf_dblocation
if [ "$RET" = "local" ]; then
    if [ ! -e "/usr/sbin/mysqld" ]; then
        # Display a message if the user want a local database but no database
        # server is available
        db_input high zoneminder/debconf_dblocalmissingerror || true
        db_go || true
    else
        DB_OK=true
        # Set the database server to localhost
        dbc_dbserver="localhost"
    fi
else
    # Source the dbconfig main configuration file
    if [ -f /etc/dbconfig-common/config ]; then
        . /etc/dbconfig-common/config
    fi
    if [ "$dbc_remote_questions_default" = "false" ]; then
        # Display a message if the dbconfig configuration does not allow
        # installation of databases on remote servers from this assistant
        # Note: It would be nice to override the default configuration by
        # setting dbc_remote_questions_default to true here but unfortunately
        # this does not work
        # https://bugs.launchpad.net/ubuntu/+source/dbconfig-common/+bug/1065331
        db_input high zoneminder/debconf_dbconfigerror || true
        db_go || true
    else
        DB_OK=true
    fi
fi

#if [ "$1" = "configure" ] || [ "$1" = "reconfigure" ]; then

    # If db config is ok, ask the user for all other settings about the database
    [ "$DB_OK" = "true" ] && dbc_go zoneminder $@

    # Ask the user for the web server(s) to configure
    db_input high zoneminder/webserver || true
    db_go || true

    # Ask the user for the password of the database administrator if the user
    # has not yet answered this question. This may happen if the user skipped
    # the database creation step when reconfiguring the package.
    RET=""
    db_get zoneminder/mysql/admin-pass
    if [ -z "$RET" ]; then
        db_input high zoneminder/mysql/admin-pass || true
        db_go || true
    fi

    # Ask for the password of 'admin' user
    while :; do
        RET=""
        db_input high zoneminder/admin_password || true
        db_go || true
        db_get zoneminder/admin_password
        # If password isn't empty we ask for password verification
        if [ -z "$RET" ]; then
            db_fset zoneminder/admin_password seen false
            db_fset zoneminder/admin_password_again seen false
            break
        fi
        ROOT_PW="$RET"
        db_input high zoneminder/admin_password_again || true
        db_go || true
        db_get zoneminder/admin_password_again
        if [ "$RET" = "$ROOT_PW" ]; then
            ROOT_PW=""
            break
        fi
        db_fset zoneminder/password_mismatch seen false
        db_input critical zoneminder/password_mismatch || true
        db_set zoneminder/admin_password ""
        db_set zoneminder/admin_password_again ""
        db_go || true
    done

fi

#DEBHELPER#

exit 0