# posh makes use of podman to run an encapsulated shell session
{ pkgs, ... }:

{ image, pull ? "always", global_args ? "", run_args ? "" }:


(pkgs.writeScriptBin "posh" ''
  #! ${pkgs.bash}/bin/bash
  source /etc/profile

  test -S "$SSH_AUTH_SOCK" && ssh="-v $SSH_AUTH_SOCK:$SSH_AUTH_SOCK -e SSH_AUTH_SOCK"
  tty -s && tty="-t" || quiet="-q"

  # define these as variables so we can override them at runtime
  POSH_IMAGE=${image}
  POSH_PULL=${pull}

  if [ "$1" == "-c" ]; then
    # We've most likely been spawned by sshd and are interested in $2 whitch contains the command string
    shift
    # TODO parse the beginning of the command for POSH_* overrides
  fi

  exec ${pkgs.podman}/bin/podman \
    ${global_args} run --rm -i $tty $ssh -v ~/:/root -w /root --network host --pull=''${POSH_PULL} \
    ${run_args} ''${POSH_IMAGE} $@
'')
.overrideAttrs(attrs: attrs // {
    passthru = {
      shellPath = "/bin/posh";
    };
})