#!/usr/bin/env nix-shell
#! nix-shell -i bash
#! nix-shell -p bash nix-output-monitor

echo FIXME Not flakes ready
exit 1

set -euo pipefail
SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )

# Parse arguments
function help {
    echo "Usage: $0 [-h|-v|-b] profile"
    echo "Build NixOS configuration on the local machine."
    echo
    echo "Arguments:"
    echo "  profile: OS/disk profile to use"
    echo
    echo "Options:"
    echo "  -h: Display this help message."
    echo "  -v: Build a virtual machine."
    echo "  -b: Build a virtual machine with boot loader."
}

attr=system
while getopts "hvb" OPTION
do
    case "$OPTION" in
        h)
            help
            exit 0
            ;;
        v)
            attr=vm
            ;;
        b)
            attr=vmWithBootLoader
            ;;
        ?)
            help
            exit 2
            ;;
    esac
done
shift "$(($OPTIND -1))"

if [ "$#" -ne 1 ]
then
    help
    exit 2
fi
profile="$1"

profile_dir="${SCRIPT_DIR}/${profile}"
if [ ! -d "$profile_dir" ]
then
    echo "Profile not found."
fi

nixos_config="${profile_dir}/os.nix"
if [ ! -f "$nixos_config" ]
then
    echo "NixOS configuration not found."
fi

set -x

nom-build '<nixpkgs/nixos>' -I "nixos-config=${nixos_config}" -A "$attr" -o "${profile_dir}/${attr}"

echo