# pacman install scriptlet — mirrors the RPM %post / deb postinst.
post_install() {
  udevadm control --reload-rules 2>/dev/null || true
  udevadm trigger --subsystem-match=misc 2>/dev/null || true
  # Apply the UDP socket-buffer tuning now (also auto-applied at boot by systemd-sysctl).
  sysctl -p /usr/lib/sysctl.d/99-punktfunk-net.conf >/dev/null 2>&1 || true
  cat <<'MSG'
punktfunk-host installed.
  1. Add yourself to the 'input' group for virtual gamepads:
       sudo usermod -aG input "$USER"     # then re-login
  2. Pick a backend config (gamescope is the no-desktop default on SteamOS/Deck):
       mkdir -p ~/.config/punktfunk
       cp /usr/share/punktfunk/host.env.bazzite ~/.config/punktfunk/host.env
  3. Enable the host:
       systemctl --user enable --now punktfunk-host

NOTE: encode is NVENC-only. Install 'nvidia-utils' on an NVIDIA host. An AMD Steam Deck is NOT
      yet supported — it needs a VAAPI (hevc_vaapi) encoder backend (see packaging/arch/README.md).
MSG
  # Firewall: stock Arch ships none (ports already open), but CachyOS et al. enable firewalld. We
  # install firewalld service definitions but never touch the running firewall — just point the way.
  if command -v firewall-cmd >/dev/null 2>&1; then
    cat <<'MSG'

  4. firewalld is active — open the streaming ports once (GameStream/Moonlight shown; use
     'punktfunk-native' instead for the native-only host):
       sudo firewall-cmd --reload                                        # load the new service def
       sudo firewall-cmd --permanent --add-service=punktfunk-gamestream
       sudo firewall-cmd --reload
MSG
  fi
}

post_upgrade() {
  udevadm control --reload-rules 2>/dev/null || true
  sysctl -p /usr/lib/sysctl.d/99-punktfunk-net.conf >/dev/null 2>&1 || true
}