import { requireUser } from "#server/utils/context";
import { getProviderById } from "#server/service/llm";

export default defineWrappedResponseHandler(async (event) => {
  const user = await requireUser(event);

  const id = Number(getRouterParam(event, "id"));
  if (!id) {
    return R.throwError(400, "无效的供应商 ID", null);
  }

  const provider = await getProviderById(id, user.id);
  if (!provider) {
    return R.throwError(404, "供应商不存在", null);
  }

  const baseUrl = provider.baseUrl?.replace(/\/+$/, "") || "";
  if (!baseUrl) {
    return R.success([]);
  }

  const headers: Record<string, string> = {
    "Content-Type": "application/json",
  };

  if (provider.parseMode === "anthropic") {
    if (provider.apiKey) {
      headers["x-api-key"] = provider.apiKey;
    }
    headers["anthropic-version"] = "2023-06-01";
  } else {
    if (provider.apiKey) {
      headers["Authorization"] = `Bearer ${provider.apiKey}`;
    }
  }

  try {
    const res = await $fetch<{ data?: { id: string; name?: string }[] }>(
      `${baseUrl}/models`,
      { headers, timeout: 8000 },
    );
    const models = (res?.data ?? []).map((m) => ({
      id: m.id,
      name: m.name || m.id,
    }));
    return R.success(models);
  } catch {
    return R.success([]);
  }
});