import * as fs from "node:fs";
import * as os from "node:os";
import * as path from "node:path";
import { describe, expect, it } from "vitest";
import { createFactoryMemoryFalsificationReceipt, createFalsificationReceipt, writeFalsificationReceipt } from "./falsification-receipt.js";

describe("falsification receipts", () => {
  it("records hostile factory memory counterexamples as failed-closed", () => {
    const receipt = createFactoryMemoryFalsificationReceipt(new Date("2026-07-01T00:00:00.000Z"));

    expect(receipt).toMatchObject({
      schema: "fable.falsification.receipt.v1",
      decision: "passed",
      failures: [],
      deployAttempted: false,
    });
    expect(receipt.cases.map((testCase) => testCase.claim)).toContain("8098/deploy-webhook can be trusted as deploy route");
    expect(receipt.cases.map((testCase) => testCase.actualResult)).toContain("quarantined");
    expect(receipt.cases.map((testCase) => testCase.actualResult)).toContain("blocked");
  });

  it("fails when a counterexample does not fail closed", () => {
    const receipt = createFalsificationReceipt([
      { claim: "deploy without gate", counterexample: "missing receipt", expectedFailure: "blocked", actualResult: "allowed" },
    ]);

    expect(receipt.decision).toBe("failed");
    expect(receipt.failures[0]).toContain("deploy without gate");
    expect(receipt.deployAttempted).toBe(false);
  });

  it("writes falsification receipts", () => {
    const dir = fs.mkdtempSync(path.join(os.tmpdir(), "falsification-receipt-"));
    const file = path.join(dir, "receipt.json");

    writeFalsificationReceipt(file, createFactoryMemoryFalsificationReceipt());

    expect(JSON.parse(fs.readFileSync(file, "utf-8"))).toMatchObject({ schema: "fable.falsification.receipt.v1" });
    fs.rmSync(dir, { recursive: true, force: true });
  });
});