#!/usr/bin/env bash

configure_php() {
	# 3wc: these changes allow environment variables to propagate to PHP; Selfoss
	# already loads its config from environment variables but unless we make these
	# changes, it can't access them. See 
	#	https://github.com/docker-library/php/pull/93/files
	if ! grep -q '^clear_env = no' /etc/php7/php-fpm.d/www.conf; then
		sed -i 's/;clear_env = no/clear_env = no/' /etc/php7/php-fpm.d/www.conf
	fi
	if ! grep -q '^clear_env = no' /etc/php7/php-fpm.conf; then
		echo 'clear_env = no' >> /etc/php7/php-fpm.conf 
	fi
	if ! grep -q 'variables_order = "EGPCS"' /etc/php7/php.ini; then
		sed -i 's/variables_order = "GPCS"/variables_order = "EGPCS"/g' \
			/etc/php7/php.ini
	fi
}

file_env() {
	# 3wc: Load $VAR_FILE into $VAR - useful for secrets. See
	# 	https://medium.com/@adrian.gheorghe.dev/using-docker-secrets-in-your-environment-variables-7a0609659aab
	local var="$1"
	local fileVar="${var}_FILE"
	local def="${2:-}"

	if [ "${!var:-}" ] && [ "${!fileVar:-}" ]; then
		echo >&2 "error: both $var and $fileVar are set (but are exclusive)"
		exit 1
	fi
	local val="$def"
	if [ "${!var:-}" ]; then
		val="${!var}"
	elif [ "${!fileVar:-}" ]; then
		val="$(< "${!fileVar}")"
	fi
	export "$var"="$val"
	unset "$fileVar"
}

load_vars() {
	file_env "SELFOSS_PASSWORD"
	file_env "SELFOSS_DB_PASSWORD"
}

main() {
	set -eu

	configure_php
	load_vars
}

main

# 3wc: upstream ENTRYPOINT
# https://github.com/theAkito/docker-selfoss/blob/master/Dockerfile
run.sh