#!/bin/sh

set -e

# Change uid/gid of radicale if vars specified
if [ -n "$UID" ] || [ -n "$GID" ]; then
	if [ ! "$UID" = "$(id radicale -u)" ] || [ ! "$GID" = "$(id radicale -g)" ]; then
		# Fail on read-only container
		if grep -e "\s/\s.*\sro[\s,]" /proc/mounts > /dev/null; then
			echo "You specified custom UID/GID (UID: $UID, GID: $GID)."
			echo "UID/GID can only be changed when not running the container with --read-only."
			echo "Please see the README.md for how to proceed and for explanations."
			exit 1
		fi

		if [ -n "$UID" ]; then
			usermod -o -u "$UID" radicale
		fi

		if [ -n "$GID" ]; then
			groupmod -o -g "$GID" radicale
		fi
	fi
fi

# If requested and running as root, mutate the ownership of bind-mounts
if [ "$(id -u)" = "0" ] && [ "$TAKE_FILE_OWNERSHIP" = "true" ]; then
	chown -R radicale:radicale /data
fi

# Run radicale as the "radicale" user or any other command if provided
if [ "$(id -u)" = "0" ] && [ "$1" = "radicale" ]; then
	exec su-exec radicale "$@"
else
	exec "$@"
fi