get_board() {
    if [ -f /proc/device-tree/model ]; then
        model=$(cat /proc/device-tree/model)
        case ${model} in
            "Hardkernel ODROID-N2")
                echo "odroidn2"
                ;;
            "Hardkernel ODROID-N2L")
                echo "odroidn2l"
                ;;
            "Hardkernel ODROID-N2Plus")
                echo "odroidn2plus"
                ;;
            "Hardkernel ODROID-C4")
                echo "odroidc4"
                ;;
            "Hardkernel ODROID-C5")
                echo "odroidc5"
                ;;
            "Hardkernel ODROID-HC4")
                echo "odroidhc4"
                ;;
            "ODROID-GO2*")
                echo "odroidgo2"
                ;;
            "ODROID-M1")
                echo "odroidm1"
                ;;
            "ODROID-M1S")
                echo "odroidm1s"
                ;;
            "ODROID-M2")
                echo "odroidm2"
                ;;
            *)
                echo "odroidn2plus"
                ;;
        esac
    fi
}

get_arch() {
    case ${1} in
        odroidc2 | odroidn2* | odroidc4 | odroidc5 | odroidhc4 | odroidgo2 | odroidm1 | odroidm1s | odroidm2)
            echo "arm64"
            ;;
        odroidxu4)
            echo "armhf"
            ;;
    esac
}

default_distro() {
    [ -z ${DISTRO} ] && DISTRO="focal"
    echo ${DISTRO}
}

default_flavour() {
    [ -z ${FLAVOUR} ] && FLAVOUR="server"
    echo ${FLAVOUR}
}

default_target_device() {
    echo ${TARGET_DEVICE}
}

allow_root_login() {
    echo true
}

default_user() {
    [ -z ${DEFAULT_USER} ] && DEFAULT_USER="odroid"
    echo ${DEFAULT_USER}
}

default_user_passwd() {
    [ -z ${DEFAULT_PASSWD} ] && DEFAULT_PASSWD="odroid"
    echo ${DEFAULT_PASSWD}
}

default_config() {
    [ "x${BOARD}" = "x" ] && BOARD=$(get_board)

    cat>${1}<<__EOF
BOARD=${BOARD}
ARCH=$(get_arch ${BOARD})
DISTRO=$(default_distro)
FLAVOUR=$(default_flavour)
TARGET_DEVICE=$(default_target_device)
DEFAULT_USER=$(default_user)
DEFAULT_PASSWD=$(default_user_passwd)
ALLOW_ROOT_LOGIN=$(allow_root_login)
__EOF
}

osname() {
    case $1 in
        focal | jammy | noble)
            echo "ubuntu"
            ;;
        buster | bullseye | bookworm)
            echo "debian"
            ;;
        *)
            echo "unknown"
            ;;
    esac
}

osversion () {
    case $1 in
        focal)
            echo "20.04"
            ;;
        jammy)
            echo "22.04"
            ;;
        noble)
            echo "24.04"
            ;;
        buster)
            echo "buster"
            ;;
        bullseye)
            echo "bullseye"
            ;;
        bookworm)
            echo "bookworm"
            ;;
    esac
}

image_file() {
    if [ "x${OSNAME}" != "x" ]; then
        IMAGE_FILE_PREFIX="${OSNAME}-${BOARD}"
    else
        IMAGE_FILE_PREFIX="$(osname ${1})-$(osversion ${1})-${2}-${3}"
    fi
    echo "${IMAGE_FILE_PREFIX}-`date +%Y%m%d`"
}

# vim: set ft=sh ts=4 sw=4 expandtab: