import type { LlmProvider } from "@uncaged/nerve-workflow-utils";
import { spawnSafe } from "@uncaged/nerve-workflow-utils";

export async function cfgGet(nerveRoot: string, key: string): Promise<string | null> {
  const result = await spawnSafe("cfg", ["get", key], { cwd: nerveRoot, env: null, timeoutMs: 10_000 });
  if (!result.ok) {
    return null;
  }
  const value = result.value.stdout.trim();
  return value.length > 0 ? value : null;
}

export async function resolveDashScopeProvider(nerveRoot: string): Promise<LlmProvider | null> {
  const apiKey = process.env.DASHSCOPE_API_KEY ?? (await cfgGet(nerveRoot, "DASHSCOPE_API_KEY"));
  const baseUrl = process.env.DASHSCOPE_BASE_URL ?? (await cfgGet(nerveRoot, "DASHSCOPE_BASE_URL"));
  const model = process.env.DASHSCOPE_MODEL ?? (await cfgGet(nerveRoot, "DASHSCOPE_MODEL")) ?? "qwen-plus";
  if (!apiKey || !baseUrl) {
    return null;
  }
  return { apiKey, baseUrl, model };
}