#!/usr/bin/env node
// fake-pi.mjs — hermetic PI_BIN stub for e2e tests.
// Ignores all argv (the backend passes --mode rpc --approve) and
// exec()s the scripted fake-pi-rpc.mjs with the F1 disambiguation scenario.
import { fileURLToPath } from "node:url";
import { dirname, resolve } from "node:path";
import { execFileSync } from "node:child_process";

const __dir = dirname(fileURLToPath(import.meta.url));
const fakePiRpc = resolve(__dir, "../../..", "harness/tests/fake_pi/fake_pi_rpc.mjs");
const scenario = resolve(__dir, "../../..", "harness/tests/fake_pi/scripts/f1_disambiguation.json");

// exec replaces the current process so the backend's child handle stays valid.
// On Node.js we use spawnSync with stdio inherit to approximate exec().
const { spawnSync } = await import("node:child_process");
const result = spawnSync(process.execPath, [fakePiRpc, scenario], {
  stdio: "inherit",
  env: { ...process.env },
});
process.exit(result.status ?? 0);