#!/bin/bash
# shellcheck disable=SC2034
DESCRIPTION="install an older commit, update to the commit under test: same machine as a fresh install"
IMAGE=base
TIER="nightly"
mapfile -t VARIANTS < <(sed 's/#.*//' "$(dirname "${BASH_SOURCE[0]}")/../baselines" | awk 'NF { print $1 }')

scenario() {
  [ -f "$(reference_fingerprint)" ] \
    || skip "needs the fingerprint 10-fresh-install saves; run both in the same run"

  local sha
  sha="$(git -C "$SMOKETEST_REPO" rev-parse "$VARIANT^{commit}")"
  upstream_set "$sha"

  # Older installers can't finish here as they did on a real machine. Install
  # those baselines with fixes on top, then put the clone back at the baseline
  # itself, as on a machine installed back then: update pulls --ff-only.
  # - The source-built herdr pins a zig version Arch has moved on from;
  #   herdr-bin provides herdr, and is what HEAD installs instead
  # - Plain gext install asks GNOME Shell, which shows a dialog no one clicks;
  #   --filesystem doesn't ask, and is what HEAD does
  # - voxtype from source no longer links without clang and cmake, which later
  #   commits (and HEAD) install
  # - install.sh sources install-kickstart-nvim.sh, whose set -u then stops
  #   bitwarden.sh on its unset LINE; without set -u, that line did nothing
  upstream_commit "Smoketest: fixes to install this baseline in a VM" '
    sed -i "s/^\([[:space:]]*\)herdr$/\1herdr-bin/" packages.conf
    grep -qx "[[:space:]]*clang" packages.conf \
      || sed -i "s/^\([[:space:]]*\)voxtype$/\1clang\n\1cmake\n\1voxtype/" packages.conf
    sed -i "s|gext install|gext --filesystem install|" gnome/gnome-extensions.sh
    sed -i "s/\"\$LINE\"/\"\${LINE:-}\"/g" bitwarden.sh
    git diff --quiet && exit 0'

  # Older installers also run flatpak install as the user, which polkit allows
  # at the desktop (or asks there) but refuses over SSH. HEAD uses sudo
  run_in_vm allow-flatpak "printf '%s\n' \
    'polkit.addRule(function(action, subject) {' \
    '  if (action.id.indexOf(\"org.freedesktop.Flatpak.\") == 0 && subject.user == \"'\"\$USER\"'\")' \
    '    return polkit.Result.YES;' \
    '});' | sudo tee /etc/polkit-1/rules.d/00-smoketest-flatpak.rules"
  assert_status 0

  cd_install
  # voxtype's build from source fails now and then (Vulkan shaders missing at
  # link time), and the baseline isn't what's under test: try once more, as
  # someone would. The installer skips what it already installed
  if [ "$STATUS" -ne 0 ]; then
    echo "The baseline's install failed; running it once more"
    cd_install
  fi
  assert_status 0
  run_in_vm reset "sudo rm /etc/polkit-1/rules.d/00-smoketest-flatpak.rules
    git -C ~/.local/share/coredesktop reset -q --hard $(q "$sha")"
  assert_status 0
  vm_reboot

  upstream_set "$SMOKETEST_REF"
  cd_update
  assert_status 0
  vm_reboot
  health

  fingerprint "$SMOKETEST_RESULTS/updated.fingerprint"
  assert_same_fingerprint "$(reference_fingerprint)" "$SMOKETEST_RESULTS/updated.fingerprint"
}