import assert from "node:assert/strict";
import crypto from "node:crypto";
import fs from "node:fs/promises";
import os from "node:os";
import path from "node:path";
import test from "node:test";
import { commitServerJobResult, verifyServerJobResultReceipt } from "../../../tools/web/server-job-result-binding.mjs";

const h = (value) => crypto.createHash("sha256").update(value).digest("hex");
const identity = { requestId: "request-1", projectId: "project-1", baseRevision: 7, sourceSha256: h("source"), settingsSha256: h("settings"), buildSha256: h("build") };

test("M13-04I commits only a readback-verified result and binds four identity hashes", async () => {
  const directory = await fs.mkdtemp(path.join(os.tmpdir(), "m13-04i-binding-"));
  try {
    const receipt = await commitServerJobResult(identity, new Uint8Array([1, 2, 3]), { outputDirectory: directory });
    assert.equal(receipt.status, "COMMITTED");
    assert.equal(receipt.publish, true);
    assert.equal((await verifyServerJobResultReceipt(receipt, identity, directory)).verified, true);
    assert.equal(receipt.outputByteLength, 3);
  } finally { await fs.rm(directory, { recursive: true, force: true }); }
});

test("M13-04I blocks tamper, stale identity and partial/quota failures", async () => {
  const directory = await fs.mkdtemp(path.join(os.tmpdir(), "m13-04i-negative-"));
  try {
    await assert.rejects(commitServerJobResult({ ...identity, settingsSha256: h("changed") }, new Uint8Array([1]), { outputDirectory: directory, expectedIdentity: identity, faultAt: "AFTER_STAGE" }), /SERVER_JOB_RESULT_IDENTITY_MISMATCH/);
    assert.deepEqual(await fs.readdir(directory), []);
    const receipt = await commitServerJobResult(identity, new Uint8Array([4, 5]), { outputDirectory: directory });
    await fs.writeFile(receipt.outputPath, new Uint8Array([9]));
    await assert.rejects(verifyServerJobResultReceipt(receipt, identity, directory), /SERVER_JOB_RESULT_HASH_MISMATCH/);
    await assert.rejects(commitServerJobResult({ ...identity, requestId: "request-2" }, new Uint8Array([8]), { outputDirectory: directory, faultAt: "QUOTA" }), /SERVER_JOB_RESULT_STORAGE_QUOTA/);
  } finally { await fs.rm(directory, { recursive: true, force: true }); }
});