#!/usr/bin/env bash
# Reverse of install.sh. Leaves user data in ~/.config/sunshine/ alone unless --purge.

set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
# shellcheck source=lib/common.sh
source "$SCRIPT_DIR/lib/common.sh"

PURGE=0
KEEP_MOONLIGHT=0
while [[ $# -gt 0 ]]; do
  case "$1" in
    --purge)          PURGE=1 ;;
    --keep-moonlight) KEEP_MOONLIGHT=1 ;;
    -h|--help)
      cat <<EOF
Usage: $(basename "$0") [--purge] [--keep-moonlight]

  --purge            Also delete ~/.config/sunshine and ~/.local/share/sunshine
  --keep-moonlight   Do not uninstall moonlight-qt
EOF
      exit 0 ;;
    *) err "Unknown option: $1"; exit 2 ;;
  esac
  shift
done

require_not_root

step "Stopping Sunshine service"
systemctl --user disable --now sunshine.service 2>/dev/null || true

step "Removing user lingering (if enabled by us)"
if loginctl show-user "$USER" -p Linger --value 2>/dev/null | grep -qx yes; then
  warn "Lingering is enabled. Leaving it on — other user services may rely on it."
  warn "Disable manually with: sudo loginctl disable-linger $USER"
fi

step "Removing packages"
if pacman -Qi sunshine >/dev/null 2>&1; then
  as_root pacman -Rns --noconfirm sunshine
elif pacman -Qi sunshine-bin >/dev/null 2>&1; then
  as_root pacman -Rns --noconfirm sunshine-bin
fi
if [[ $KEEP_MOONLIGHT -eq 0 ]] && pacman -Qi moonlight-qt >/dev/null 2>&1; then
  as_root pacman -Rns --noconfirm moonlight-qt
fi

step "Removing udev rule (if we wrote one)"
if [[ -f /etc/udev/rules.d/60-uinput.rules ]]; then
  as_root rm -f /etc/udev/rules.d/60-uinput.rules
  as_root udevadm control --reload-rules
fi

if [[ $PURGE -eq 1 ]]; then
  step "Purging Sunshine user data"
  rm -rf "$HOME/.config/sunshine" "$HOME/.local/share/sunshine"
fi

ok "Uninstall complete. Firewall rules and 'input' group membership were left in place."