#!/bin/sh

if [ ! -d /caddy-data ] || [ ! -d /stalwart-certs ]; then
	echo "[$(date -u +'%Y-%m-%dT%H:%M:%SZ')] FATAL: Required volume mounts (/caddy-data or /stalwart-certs) are missing!" >&2
	exit 1
fi

echo "[$(date -u +'%Y-%m-%dT%H:%M:%SZ')] Certificate sync container initialized. Checking every 12 hours..."

while true; do
	if [ -d /caddy-data/caddy/certificates ] && [ "$(ls -A /caddy-data/caddy/certificates 2>/dev/null)" ]; then
		echo "[$(date -u +'%Y-%m-%dT%H:%M:%SZ')] Syncing Caddy certificates to Stalwart..."

		cp -a /caddy-data/caddy/certificates/. /stalwart-certs/

		chown -R 2000:2000 /stalwart-certs
		chmod -R 755 /stalwart-certs
		find /stalwart-certs -type f -name '*.key' -exec chmod 600 {} +
		find /stalwart-certs -type f -name '*.crt' -exec chmod 644 {} +
	else
		echo "[$(date -u +'%Y-%m-%dT%H:%M:%SZ')] Waiting for certificates in /caddy-data/caddy/certificates..."
	fi

	sleep 43200 &
	wait $!
done