// Operator-hardware fallback backend. Forwards transcribe requests to
// the operator's Parakeet (or any Whisper-API-compatible) endpoint and
// analyze requests to their Gemma (or any OpenAI-API-compatible) endpoint.
//
// v0.1 is a stub — the endpoints are wired up, but no operator has
// pointed a real Parakeet/Gemma at the relay yet. Returns a 503
// "hardware fallback not yet wired" so the credits.js routing logic
// still applies but users get a clear message instead of a silent
// failure.

export function createHardwareBackend({
  parakeetBaseURL = "",
  gemmaBaseURL = "",
} = {}) {
  const hasParakeet = !!parakeetBaseURL;
  const hasGemma = !!gemmaBaseURL;

  return {
    hasTranscribe: hasParakeet,
    hasAnalyze: hasGemma,

    async transcribeAudio() {
      if (!hasParakeet) {
        const err = new Error(
          "operator-hardware transcribe path is not configured (relay_parakeet_base_url is empty)"
        );
        err.status = 503;
        throw err;
      }
      // TODO v0.2: POST audio to parakeetBaseURL using the OpenAI
      // audio-transcriptions wire format Recap already speaks. Return
      // { text, segments, duration_seconds } in the same shape as
      // gemini.js's transcribeAudio.
      const err = new Error("operator-hardware transcribe path not yet implemented in relay v0.1");
      err.status = 503;
      throw err;
    },

    async analyzeText() {
      if (!hasGemma) {
        const err = new Error(
          "operator-hardware analyze path is not configured (relay_gemma_base_url is empty)"
        );
        err.status = 503;
        throw err;
      }
      // TODO v0.2: POST prompt to gemmaBaseURL using either /api/generate
      // (Ollama native) or /v1/chat/completions (OpenAI-compatible).
      // Return { text } matching gemini.js's analyzeText.
      const err = new Error("operator-hardware analyze path not yet implemented in relay v0.1");
      err.status = 503;
      throw err;
    },
  };
}