#!/usr/bin/sh
#----------------------------------------------------------------------------------
# /var/install/bin/nextcloud-pre-edit-config - edit configuration file
#
# Copyright (c) 2013-2025  The Eisfair Team, team(at)eisfair(dot)org
#
# Creation:     2013-05-21  jed
# Last Update:  $Id$
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#----------------------------------------------------------------------------------

# read eislib etc.
. /var/install/include/eislib
. /var/install/include/check-eisfair-version

pgmname=`basename $0`
module_name="`echo "${pgmname}" | cut -d- -f1 | cut -d. -f1`"

#exec 2> /tmp/${module_name}-pre-edit-config-trace$$.log
#set -x

configfile=/etc/config.d/${module_name}
nextcloud_path=/var/${module_name}
tmp_file=/var/tmp/${pgmname}.$$

# read parameters
if [ -f ${configfile} ]
then
    {
        grep -E "^NEXTCLOUD_DATA_DIR|^NEXTCLOUD_INSTANCE_ID|NEXTCLOUD_INSTANCE_SECRET|NEXTCLOUD_PASSWORD_SALT" ${configfile}
    } > ${tmp_file}
    . ${tmp_file}
    rm -d ${tmp_file}

    if [ -n "${NEXTCLOUD_DATA_DIR}" ]
    then
        # remove trailing slashes
        nextcloud_path="`echo "${NEXTCLOUD_DATA_DIR}" | sed 's#[/ ]*$##'`"
    fi

    ### instance id ###
    if [ -z "${NEXTCLOUD_INSTANCE_ID}" -a -z "`grep ^NEXTCLOUD_INSTANCE_ID ${configfile}`" ]
    then
        # add empty parameter if it doesn't exist
        echo "NEXTCLOUD_INSTANCE_ID=''" >> ${configfile}
    fi

    if [ -z "${NEXTCLOUD_INSTANCE_ID}" ]
    then
        # instance id not yet set
        /usr/bin/php -r "error_reporting(0); include('${nextcloud_path}/config/config.php'); print(\$CONFIG['instanceid']);" 2>/dev/null | \
            grep -vi "array" > ${tmp_file}
        instance_id="`cat ${tmp_file} | sed 's/ *//g'`"
        rm -f ${tmp_file}

        if [ -n "${instance_id}" ]
        then
            # value found in Nextcloud configuration, save it ...
            mecho -n "writing instance id to configuration ..."
          # echo "INSTANCE-ID:${instance_id}"
            sed "s|^\(NEXTCLOUD_INSTANCE_ID\)=.*\( *# .*\)$|\1='${instance_id}' \2|" ${configfile} >${configfile}.tmp
            cp ${configfile}.tmp ${configfile}
            rm -f ${configfile}.tmp

            echo --info "done."
        fi
    fi

    ### instance secret ###
    if [ -z "${NEXTCLOUD_INSTANCE_SECRET}" -a -z "`grep ^NEXTCLOUD_INSTANCE_SECRET ${configfile}`" ]
    then
        # add empty parameter if it doesn't exist
        echo "NEXTCLOUD_INSTANCE_SECRET=''" >> ${configfile}
    fi

    if [ -z "${NEXTCLOUD_INSTANCE_SECRET}" ]
    then
        # secret not yet set
        /usr/bin/php -r "error_reporting(0); include('${nextcloud_path}/config/config.php'); print(\$CONFIG['secret']);" 2>/dev/null | \
            grep -vi "array" > ${tmp_file}
        instance_secret="`cat ${tmp_file} | sed 's/ *//g'`"
        rm -f ${tmp_file}

        if [ -n "${instance_secret}" ]
        then
            # value found in Nextcloud configuration, save it ...
            mecho -n "writing instance secret to configuration ..."
          # echo "SECRET:${_uro_secret}"
            sed "s|^\(NEXTCLOUD_INSTANCE_SECRET\)=.*\( *# .*\)$|\1='${instance_secret}' \2|" ${configfile} >${configfile}.tmp
            cp ${configfile}.tmp ${configfile}
            rm -f ${configfile}.tmp

            echo --info "done."
        fi
    fi

    ### password salt ###
    if [ -z "${NEXTCLOUD_PASSWORD_SALT}" -a -z "`grep ^NEXTCLOUD_PASSWORD_SALT ${configfile}`" ]
    then
        # add empty parameter if it doesn't exist
        echo "NEXTCLOUD_PASSWORD_SALT=''" >> ${configfile}
    fi

    if [ -z "${NEXTCLOUD_PASSWORD_SALT}" ]
    then
        # secret not yet set
        /usr/bin/php -r "error_reporting(0); include('${nextcloud_path}/config/config.php'); print(\$CONFIG['passwordsalt']);" 2>/dev/null | \
            grep -vi "array" > ${tmp_file}
        password_salt="`cat ${tmp_file} | sed 's/ *//g'`"
        rm -f ${tmp_file}

        if [ -n "${password_salt}" ]
        then
            # value found in Nextcloud configuration, save it ...
            mecho -n "writing password salt to configuration ..."
          # echo "SECRET:${password_salt}"
            sed "s|^\(NEXTCLOUD_PASSWORD_SALT\)=.*\( *# .*\)$|\1='${password_salt}' \2|" ${configfile} >${configfile}.tmp
            cp ${configfile}.tmp ${configfile}
            rm -f ${configfile}.tmp

            echo --info "done."
        fi
    fi

    chmod 0600 ${configfile}

    sleep 3
fi

exit 0