#!/usr/bin/env bash

# @copyright Copyright (c) 2017 Arthur Schiwon <blizzz@arthur-schiwon.de>
#
# @author Arthur Schiwon <blizzz@arthur-schiwon.de>
#
# @license GNU AGPL version 3 or any later version
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

getarg() { # by Univention
    local found=0
    for arg in "${ARGS[@]}"; do
        if [ "$found" -eq 1 ]; then
            echo "$arg"
            break
        fi
        if [ "$arg" = "$1" ]; then
            found=1
        fi
    done
}
ERROR_FILE=$(getarg "--error-file")

error_msg() {
    if [ -n "$1" ]; then
        IN="$@"
    else
        read IN # from stdin
    fi
	if [ -n "$ERROR_FILE" ]; then
		echo "$IN" | tee -a "$ERROR_FILE" >&2
	else
		echo "$IN" >&2
	fi
}

if [ -e "/var/www/html/config/config.php" ]; then
    if [ ! -d "$NC_PERMCONFDIR" ]; then
        error_msg "Permanent data dir '$NC_PERMCONFDIR' did not exist, unexpectedly. Creating now."
        mkdir -p "$NC_PERMCONFDIR" || (error_msg "Could not create directory"; exit 29)
    fi
    cp -Ra "/var/www/html/config" "$NC_PERMCONFDIR/" || (error_msg "Could not backup config file"; exit 30)
fi