import { spawnSafe } from "@uncaged/nerve-workflow-utils";
import { formatSpawnFailure } from "./spawn-utils.js";

export async function runTestCommand(
  nerveRoot: string,
  command: string,
): Promise<{
  ok: boolean;
  stdoutPreview: string;
  stderrPreview: string;
  reason: string | null;
}> {
  const result = await spawnSafe("bash", ["-lc", command], {
    cwd: nerveRoot,
    env: null,
    timeoutMs: 300_000,
  });
  if (result.ok) {
    return {
      ok: true,
      stdoutPreview: result.value.stdout.slice(0, 600),
      stderrPreview: result.value.stderr.slice(0, 400),
      reason: null,
    };
  }
  return {
    ok: false,
    stdoutPreview: (result.error.kind === "spawn_failed" ? "" : result.error.stdout).slice(0, 600),
    stderrPreview: (result.error.kind === "spawn_failed" ? result.error.message : result.error.stderr).slice(0, 400),
    reason: formatSpawnFailure(result.error),
  };
}