# frozen_string_literal: true

module Sermo
  # The conversational core of SERMO-DOS.
  #
  # Anything typed at the C:\> prompt that is not a built-in DOS command is
  # routed here (via the FakeOS `on_unknown` hook). For now it returns canned,
  # in-character replies so the machine feels alive.
  #
  # THIS IS THE LLM INTEGRATION POINT: to make SERMO actually think, replace
  # the body of `answer` with a call to your model (e.g. the Claude API) and
  # return its text. Nothing else in the project needs to change.
  module Oracle
    def self.answer(question, _ctx = {})
      text = question.to_s.strip
      case text.downcase
      when /\b(hello|hi|hey|szia|hell[oó])\b/
        'Greetings, caller. SERMO-DOS is listening.'
      when /\bwho are you\b/, /\bmi vagy\b/
        'I am SERMO-DOS — a conversational disk operating system.'
      when /\b(thanks|thank you|k[oö]sz)\b/
        'You are welcome.'
      else
        [
          'My conversational core is not yet connected to a brain.',
          %(You said: "#{text}"),
          '(Wire Sermo::Oracle.answer to an LLM to make me think.)'
        ].join("\n")
      end
    end
  end
end