#!/bin/bash
set -e

CODE_UUID="${BACKUPPC_UUID:-1001}"
CODE_GUID="${BACKUPPC_GUID:-1001}"
CODE_USERNAME=$(getent passwd "$CODE_UUID" | cut -d: -f1)
CODE_GROUPNAME=$(getent group "$CODE_GUID" | cut -d: -f1)

if [ -f /firstrun ]; then
	echo 'First run of the container. Code will be configured.'
	echo 'If exist, configuration and data will be reused and upgraded as needed.'

	# Configure timezone if needed
	if [ -n "$TZ" ]; then
		cp /usr/share/zoneinfo/$TZ /etc/localtime 
	fi

	# Create code user/group if needed
	if [ -z "$CODE_GROUPNAME" ]; then
		groupadd -r -g "$CODE_GUID" code
		CODE_GROUPNAME="code"
	fi
	if [ -z "$CODE_USERNAME" ]; then
		if [ "$CODE_PASSWORD" ] && [ "$CODE_PASSWORD_FILE" ]; then
			echo 'error: both CODE_PASSWORD and CODE_PASSWORD_FILE are set (but are exclusive)\n'
			exit 1
		fi
		password=""
		if [ "$CODE_PASSWORD" ]; then
			password="$CODE_PASSWORD"
		elif [ "$CODE_PASSWORD_FILE" ]; then
			password="$(< ${CODE_PASSWORD_FILE})"
		fi

		useradd -r -d /home/code -s /bin/bash -g "$CODE_GUID" -u "$CODE_UUID" -M -N code
		echo "code:$password" | chpasswd

		CODE_USERNAME="code"
	else
		usermod -d /home/code "$CODE_USERNAME"
	fi
	chown "$CODE_USERNAME":"$CODE_GROUPNAME" /home/code

	# Clean
	rm -rf /firstrun
fi

export CODE_USERNAME

cd /home/code
exec "$@"