export {
  ANTHROPIC_VERTEX_DEFAULT_MODEL_ID,
  buildAnthropicVertexProvider,
} from "./provider-catalog.js";
export {
  hasAnthropicVertexAvailableAuth,
  hasAnthropicVertexCredentials,
  resolveAnthropicVertexClientRegion,
  resolveAnthropicVertexConfigApiKey,
  resolveAnthropicVertexProjectId,
  resolveAnthropicVertexRegion,
  resolveAnthropicVertexRegionFromBaseUrl,
} from "./region.js";
import { buildAnthropicVertexProvider } from "./provider-catalog.js";
import { hasAnthropicVertexAvailableAuth } from "./region.js";

export function mergeImplicitAnthropicVertexProvider(params: {
  existing?: ReturnType<typeof buildAnthropicVertexProvider>;
  implicit: ReturnType<typeof buildAnthropicVertexProvider>;
}) {
  const { existing, implicit } = params;
  if (!existing) {
    return implicit;
  }
  return {
    ...implicit,
    ...existing,
    models:
      Array.isArray(existing.models) && existing.models.length > 0
        ? existing.models
        : implicit.models,
  };
}

export function resolveImplicitAnthropicVertexProvider(params?: { env?: NodeJS.ProcessEnv }) {
  const env = params?.env ?? process.env;
  if (!hasAnthropicVertexAvailableAuth(env)) {
    return null;
  }

  return buildAnthropicVertexProvider({ env });
}