#!/bin/sh
set -eu

repo_root=$(CDPATH= cd -- "$(dirname -- "$0")/.." && pwd)
cd "$repo_root"

version=$(python3 -c 'import pathlib,tomllib; print(tomllib.loads(pathlib.Path("pyproject.toml").read_text())["project"]["version"])')
image_ref=${1:-trex-core:$version}
source_commit=$(git rev-parse HEAD)

if [ -n "$(git status --porcelain)" ]; then
    echo "release image build requires a clean checkout" >&2
    exit 2
fi
case "$image_ref" in
    *:"$version") ;;
    *) echo "image reference must use the project version tag :$version" >&2; exit 2 ;;
esac

docker build \
    --build-arg "SOURCE_COMMIT=$source_commit" \
    --build-arg "SOURCE_VERSION=$version" \
    --tag "$image_ref" \
    .

actual_revision=$(docker image inspect --format '{{ index .Config.Labels "org.opencontainers.image.revision" }}' "$image_ref")
actual_version=$(docker image inspect --format '{{ index .Config.Labels "org.opencontainers.image.version" }}' "$image_ref")
actual_user=$(docker image inspect --format '{{ .Config.User }}' "$image_ref")

[ "$actual_revision" = "$source_commit" ]
[ "$actual_version" = "$version" ]
[ "$actual_user" = "10001:10001" ]
docker run --rm "$image_ref" --version

printf 'image=%s\nversion=%s\nrevision=%s\nimage_id=%s\n' \
    "$image_ref" "$actual_version" "$actual_revision" \
    "$(docker image inspect --format '{{ .Id }}' "$image_ref")"