#!/usr/bin/env bash

set -x

APPLIANCE_NAME="Rocky-9-aarch64-Orange-Pi-5-minimal"
KICKSTARTER_FILENAME="${APPLIANCE_NAME}.ks"
IMAGE_NAME="${APPLIANCE_NAME}-$(TZ='UTC' date +%Y.%m.%d-%H%M%S).raw"
COMPRESSED_IMAGE_NAME="${IMAGE_NAME}.zst"

if [[ ${EUID} -ne 0 ]]; then
    >&2 echo "$0: error: Please run this script as root"
    exit 1
fi

if ! command -v appliance-creator > /dev/null; then
    >&2 echo "$0: error: unable to find command 'appliance-creator'"
    exit 1
fi

if ! command -v shasum > /dev/null; then
    >&2 echo "$0: error: unable to find command 'shasum'"
    exit 1
fi

appliance-creator \
    --config "${KICKSTARTER_FILENAME}" \
    --name "${APPLIANCE_NAME}" \
    --format raw \
    --no-compress \
    --outdir "${PWD}" \
    --debug \
    --verbose
    # DO NOT USE THE '--checksum' OPTION BECAUSE, FOR SOME REASON
    # UTF8 ERRORS ARE GENERATED DURING IMAGE CREATION
    # AND THE IMAGE CREATION STEP FAILS
    #--checksum \
    # DO NOT USE THE '--cache' OPTION SINCE IT USES OLDER VERSIONS
    # OF PACKAGES, WHICH IS THE WORST WHEN TESTING CHANGES:w
    #--cache "/root/cache" \

if [[ -d "${APPLIANCE_NAME}" ]]; then

    pushd "${APPLIANCE_NAME}" || exit 1
    mv -v -f "${APPLIANCE_NAME}-sda.raw" "${IMAGE_NAME}"
    zstd -9 -z "${IMAGE_NAME}"

    sha256sum "${IMAGE_NAME}" > "${IMAGE_NAME}.sha256"
    sha512sum "${IMAGE_NAME}" > "${IMAGE_NAME}.sha512"
    sha256sum "${COMPRESSED_IMAGE_NAME}" > "${COMPRESSED_IMAGE_NAME}.sha256"
    sha512sum "${COMPRESSED_IMAGE_NAME}" > "${COMPRESSED_IMAGE_NAME}.sha512"
    popd || exit 1

    echo 'DONE'
    echo "Please chown '${APPLIANCE_NAME}/' if necessary"
fi