#!/usr/bin/env bash
# Baut das Multi-Arch-Image (amd64 + arm64) und schiebt es in die
# Container-Registry von Gitea.
#
#   docker login git.everdc.eu          # einmalig, Gitea-User + Token mit write:package
#   deploy/push-image.sh                # Tag aus `git describe`
#   LATEST=1 deploy/push-image.sh       # zusätzlich :latest setzen (nur für Releases)
#
# Ergebnis: ${REGISTRY}/${OWNER}/sultan:<version> (und ggf. :latest)
set -euo pipefail

cd "$(dirname "$0")/.."
REGISTRY="${REGISTRY:-git.everdc.eu}"
OWNER="${OWNER:-chmln-app-dev}"
IMAGE="${REGISTRY}/${OWNER}/sultan"
VERSION="${VERSION:-$(git describe --tags --always --dirty)}"
PLATFORMS="${PLATFORMS:-linux/amd64,linux/arm64}"

case "$VERSION" in
*-dirty)
	echo "Arbeitsverzeichnis hat uncommittete Änderungen (${VERSION}) – erst committen." >&2
	exit 1
	;;
esac

tags=(-t "${IMAGE}:${VERSION}")
if [ "${LATEST:-0}" = 1 ]; then
	tags+=(-t "${IMAGE}:latest")
fi

# Multi-Arch-Builds brauchen einen buildx-Builder mit docker-container-Treiber.
if ! docker buildx inspect sultan-builder >/dev/null 2>&1; then
	docker buildx create --name sultan-builder --driver docker-container >/dev/null
fi

docker buildx build --builder sultan-builder \
	--platform "$PLATFORMS" \
	--build-arg VERSION="$VERSION" \
	"${tags[@]}" \
	--push .

echo "==> gepusht: ${IMAGE}:${VERSION}"
docker buildx imagetools inspect "${IMAGE}:${VERSION}" | head -n 3