#!/bin/sh
set -e

if [ ! -z $IFM_DOCKER_UID ]; then
	# check if UID/GID are numeric
	if ! echo "$IFM_DOCKER_UID$IFM_DOCKER_GID" | egrep "^[0-9]+$" >/dev/null 2>&1; then
		echo "FATAL: IFM_DOCKER_UID or IFM_DOCKER_GID are not numeric (UID: $IFM_DOCKER_UID, GID: $IFM_DOCKER_GID)"
		exit 1
	fi

	# get GID if not set
	if [ -z $IFM_DOCKER_GID ]; then
		export IFM_DOCKER_GID=$IFM_DOCKER_UID
	fi

	# delete user if already exists
	if getent passwd $IFM_DOCKER_UID >/dev/null 2>&1; then
		deluser $(getent passwd $IFM_DOCKER_UID | sed "s/:.*//")
	fi

	# check if group already exists
	if ! getent group $IFM_DOCKER_GID >/dev/null 2>&1; then
		addgroup -g $IFM_DOCKER_GID -S www-data
		REAL_GROUP=www-data
	else
		REAL_GROUP=$(getent group $IFM_DOCKER_GID | sed "s/:.*//")
	fi

	adduser -u $IFM_DOCKER_UID -SHDG $REAL_GROUP www-data
else
	addgroup -g 33 -S www-data
	adduser -SHD -u 33 -G www-data www-data
fi

sudo -Eu www-data /usr/local/bin/php -c /usr/local/share/webapps/ifm/php.ini -S 0:80 -t /usr/local/share/webapps/ifm