# ncli/commands/maintenance.nix — cleanup, diag, list-gens, trim, home-backups
lib:

let
  inherit (lib) project;
in
{
  cleanup_case = ''
    echo "Warning! This will remove old generations of your system."
    read -p "How many generations to keep (default: all)? " keep_count

    if [ -z "$keep_count" ]; then
      read -p "This will remove all but the current generation. Continue (y/N)? " -n 1 -r
      echo
      if [[ $REPLY =~ ^[Yy]$ ]]; then
        nh clean all -v
      else
        echo "Cleanup cancelled."
      fi
    else
      read -p "This will keep the last $keep_count generations. Continue (y/N)? " -n 1 -r
      echo
      if [[ $REPLY =~ ^[Yy]$ ]]; then
        nh clean all -k "$keep_count" -v
      else
        echo "Cleanup cancelled."
      fi
    fi

    LOG_DIR="$HOME/ncli-cleanup-logs"
    mkdir -p "$LOG_DIR"
    LOG_FILE="$LOG_DIR/ncli-cleanup-$(date +%Y-%m-%d_%H-%M-%S).log"
    echo "Cleaning up old log files..." >> "$LOG_FILE"
    find "$LOG_DIR" -type f -mtime +3 -name "*.log" -delete >> "$LOG_FILE" 2>&1
    echo "Cleanup process logged to $LOG_FILE"
    ;;
  '';

  diag_case = ''
    echo "Generating system diagnostic report..."
    {
      echo "=== NixOS System Diagnostic Report ==="
      echo "Generated: $(date)"
      echo ""
      echo "=== System Information ==="
      inxi --full 2>/dev/null || echo "inxi not available"
      echo ""
      echo "=== Git Status ==="
      cd "$HOME/${project}" 2>/dev/null && git status 2>/dev/null || echo "Git status not available"
      echo ""
    } > "$HOME/diag.txt"
    echo "Diagnostic report saved to $HOME/diag.txt"
    ;;
  '';

  list_gens_case = ''
    echo "--- User Generations ---"
    nix-env --list-generations | cat || echo "Could not list user generations."
    echo ""
    echo "--- System Generations ---"
    nix profile history --profile /nix/var/nix/profiles/system | cat || echo "Could not list system generations."
    ;;
  '';

  trim_case = ''
    echo "Running 'sudo fstrim -v /' may take a few minutes and impact system performance."
    read -p "Enter to run now or enter to exit (y/N): " -n 1 -r
    echo
    if [[ $REPLY =~ ^[Yy]$ ]]; then
      echo "Running fstrim..."
      sudo fstrim -v /
      echo "fstrim complete."
    else
      echo "Trim operation cancelled."
    fi
    ;;
  '';

  home_backups_case = ''
    ls -a ~ | grep backup
    ;;
  '';
}