#!/usr/bin/env bash

if [[ -n "${ATLAS_PACKAGES_SH_LOADED:-}" ]]; then
  return 0
fi
ATLAS_PACKAGES_SH_LOADED=1

atlas_package_installed() {
  local package_name="$1"
  dpkg-query -W -f='${Status}' "$package_name" 2>/dev/null | grep -q '^install ok installed$'
}

atlas_package_status() {
  local package_name="$1"
  if atlas_package_installed "$package_name"; then
    printf 'installed\n'
  else
    printf 'missing\n'
  fi
}

atlas_install_packages() {
  if [[ "$#" -eq 0 ]]; then
    atlas_log_warn "No packages requested"
    return 0
  fi

  if [[ "${ATLAS_DRY_RUN:-0}" == "1" ]]; then
    atlas_log_info "Dry-run mode: would install packages: $*"
    return 0
  fi

  atlas_log_info "Installing packages: $*"
  atlas_sudo_run apt-get install -y "$@"
}

atlas_pending_update_count() {
  apt list --upgradable 2>/dev/null | awk 'NR > 1 {count++} END {print count + 0}'
}

atlas_reboot_required() {
  [[ -f /var/run/reboot-required ]]
}