#!/bin/bash
set -e
cd "$(dirname "$0")"

IMAGE="thetadev256/keycloak"

OLD_DIGEST=""
if [ -f old_digest ]; then
	OLD_DIGEST=$(cat old_digest)
	echo "old digest: $OLD_DIGEST"
fi

CUR_DIGEST=$(curl -Isf https://quay.io/v2/keycloak/keycloak/manifests/latest | awk -v FS=": " '/^docker-content-digest/{print $2}')
echo "current digest: $CUR_DIGEST"

if [ "$OLD_DIGEST" != "$CUR_DIGEST" ]; then
	VERSION=$(curl -sf https://quay.io/v2/keycloak/keycloak/manifests/latest | jq -r '.history[0].v1Compatibility' | jq -r '.config.Labels.version')
	echo "version: $VERSION"

	if [[ "$VERSION" =~ ^([0-9]+)\.([0-9]+)\. ]]; then
		VERSION_MAJOR="${BASH_REMATCH[1]}"
		VERSION_MINOR="${BASH_REMATCH[2]}"
	else
		echo "could not parse version"
		exit 1
	fi

	docker buildx build --platform linux/amd64,linux/arm64 --push -t "$IMAGE:latest" -t "$IMAGE:$VERSION" -t "$IMAGE:$VERSION_MAJOR" -t "$IMAGE:$VERSION_MAJOR.$VERSION_MINOR" .

	echo "$CUR_DIGEST" > old_digest
	docker buildx prune -f
	curl "https://gotify.thetadev.de/message?token=$GOTIFY_TOKEN" -F "title=Keycloak image built" -F "message=Version: $VERSION - Digest: $CUR_DIGEST"
fi