import assert from "node:assert/strict";
import { mkdtempSync, readFileSync, writeFileSync } from "node:fs";
import { tmpdir } from "node:os";
import { join } from "node:path";
import test from "node:test";
import { ensurePiTrust } from "./ensure-pi-trust.mjs";

test("adds the canonical harness path and preserves existing trust entries", () => {
  const root = mkdtempSync(join(tmpdir(), "thothii-pi-trust-"));
  const agentDir = join(root, "agent");
  ensurePiTrust("/first/harness", agentDir);
  writeFileSync(
    join(agentDir, "trust.json"),
    `${JSON.stringify({ "/existing/project": true }, null, 2)}\n`,
  );

  assert.equal(ensurePiTrust("/app/harness/../harness", agentDir), true);
  const trust = JSON.parse(readFileSync(join(agentDir, "trust.json"), "utf8"));
  assert.deepEqual(trust, { "/existing/project": true, "/app/harness": true });
  assert.equal(ensurePiTrust("/app/harness", agentDir), false);
});