// Single source: build PROVIDERS + PROVIDER_MODELS from registry/{id}.js (transport + models co-located).
import REGISTRY from "./registry/index.js";
import { PROVIDER_DEFAULTS } from "./schema.js";
import { normalizeModel } from "./models/schema.js";
import { buildTtsProviderModels } from "../config/ttsModels.js";

// oauth block is canonical for these fields; inject into transport so executors reading
// this.config.{clientId,clientSecret,tokenUrl} keep working without duplicating in transport
const OAUTH_INJECT_FIELDS = ["clientId", "clientSecret", "tokenUrl"];

// transport: re-apply shared default (format:"openai") + inject oauth-canonical fields
function buildTransport(transport, oauth) {
  const t = { ...transport };
  if (!t.format) t.format = PROVIDER_DEFAULTS.format;
  if (oauth) {
    for (const f of OAUTH_INJECT_FIELDS) {
      if (t[f] === undefined && oauth[f] !== undefined) t[f] = oauth[f];
    }
  }
  return t;
}

export const PROVIDERS = {};
export const PROVIDER_MODELS = {};
export const PROVIDER_OAUTH = {};
export const PROVIDER_MEDIA = {};
for (const entry of REGISTRY) {
  if (entry.transport) PROVIDERS[entry.id] = buildTransport(entry.transport, entry.oauth);
  // models omitted (undefined) → provider has no model list key; [] is a valid explicit empty list
  // normalizeModel: accept terse "id" strings + derive name via regex when omitted
  // alias defaults to id (doc 01 §2); without fallback all alias-less providers collide on key `undefined`
  if (entry.models !== undefined) PROVIDER_MODELS[entry.alias || entry.id] = entry.models.map(normalizeModel);
  if (entry.oauth) PROVIDER_OAUTH[entry.id] = entry.oauth;
  if (entry.media) PROVIDER_MEDIA[entry.id] = entry.media;
}

// TTS model/voice tables keyed by special names (openai-tts-models, ...), not provider ids
Object.assign(PROVIDER_MODELS, buildTtsProviderModels());