navi/shell/navi.plugin.fish

function _navi_smart_replace
  set -l current_process (commandline -p | string trim)

  if test -z $current_process
    commandline -i (navi --print)
  else
    set -l best_match (navi --print --best-match --query $current_process)

    if not test $best_match > /dev/null
      return
    end

    if test $best_match = ""
      commandline -p (navi --print --query $current_process)
    else if test $current_process != $best_match
      commandline -p $best_match
    else
      commandline -p (navi --print --query $current_process)
    end
  end

  commandline -f repaint
end

bind \cg _navi_smart_replace
bind -M insert \cg _navi_smart_replace