{ pkgs ? import <nixpkgs> {},
  diskImage ? "/opt/windows/c.img",
  qemuMem ? "2G",
  testTimeout ? 180,
  artiqPkg ? import ../conda-artiq.nix { inherit pkgs; },
}:

with pkgs;

let
  artiqSrc = <artiqSrc>;
  artiqVersion =
    pkgs.runCommand "artiq-version" {
      buildInputs = [ pkgs.nix pkgs.git ];
    } ''
      REV=`git --git-dir ${artiqSrc}/.git rev-parse HEAD`
      echo \"5e.`cut -c1-8 <<< $REV`\" > $out
    '';

  generateTestOkHash =
    pkgs.runCommand "generate-test-ok-hash" {
      buildInputs = [ pkgs.nix ];
    } ''
      TMPDIR=`mktemp -d`
      cp ${artiqVersion} $TMPDIR/passed
      HASH=`nix-hash --type sha256 --base32 $TMPDIR`
      echo \"$HASH\" > $out
    '';

  qemu = import ./qemu.nix {
    inherit pkgs qemuMem;
    diskImage = "c.img";
  };
  ssh = qemu.ssh;
  scp = qemu.scp;
  condaEnv = "artiq-env";

  makeTest = name: testCommand:
    stdenv.mkDerivation {
      name = "windows-test-conda-artiq-${name}";

      outputHashAlgo = "sha256";
      outputHashMode = "recursive";
      outputHash = import generateTestOkHash;
      __hydraRetry = false;

      phases = [ "buildPhase" ];
      buildInputs = qemu.inputs;
      buildPhase = ''
        # +1 day from last modification of the disk image
        CLOCK=$(date -Is -d @$(expr $(stat -c %Y ${diskImage}) + 86400))
        ${qemu.runQemu true [
          "-boot" "order=c"
          "-snapshot"
          "-drive" "file=${diskImage},index=0,media=disk,cache=unsafe"
          "-rtc" "base=$CLOCK"
          "-display" "none"
        ]} &

        echo "Wait for Windows to boot"
        sleep 10
        ${ssh "ver"}
        for pkg in ${artiqPkg}/noarch/artiq*.tar.bz2 ; do
          ${scp "\$pkg" "artiq.tar.bz2"}
          ${ssh "anaconda\\scripts\\activate ${condaEnv} && conda install artiq.tar.bz2"}
        done

        # Allow tests to run for 2 minutes
        ${ssh "shutdown -s -t ${toString testTimeout}"}

        ${testCommand}

        # Abort timeouted shutdown
        ${ssh "shutdown -a"}
        # Power off immediately
        ${ssh "shutdown -p -f"}

        mkdir $out
        cp ${artiqVersion} $out/passed
      '';
    };
in {
  standalone =
    makeTest "standalone"
    (ssh "anaconda\\scripts\\activate ${condaEnv} && python -m unittest discover -v artiq.test");
  kc705 =
    makeTest "kc705"
    # This weirdly mangled syntax is legit for Windows
    (ssh (builtins.replaceStrings [ "\n" ] [ "" ] ''
      anaconda\scripts\activate ${condaEnv}
      && set ARTIQ_ROOT=%cd%\anaconda\envs\artiq-env\Lib\site-packages\artiq\examples\kc705_nist_clock
      && set ARTIQ_LOW_LATENCY=1
      && python -m unittest discover -v artiq.test.coredevice
    ''));
}