// @vitest-environment node
import fs from "node:fs";
import os from "node:os";
import path from "node:path";
import { afterEach, describe, expect, test } from "vitest";

import { collectInstalledRuntimePackages } from "./generate-sbom.mjs";

const temporaryDirectories = [];

afterEach(() => {
  for (const directory of temporaryDirectories.splice(0)) {
    fs.rmSync(directory, { recursive: true, force: true });
  }
});

describe("runtime SBOM inventory", () => {
  test("reports exact package versions present in the pruned pnpm virtual store", () => {
    const root = fs.mkdtempSync(path.join(os.tmpdir(), "hivegrid-sbom-"));
    temporaryDirectories.push(root);
    const nodeModules = path.join(root, "node_modules");
    const alpha = path.join(nodeModules, ".pnpm", "alpha@1.2.3", "node_modules", "alpha");
    const beta = path.join(nodeModules, ".pnpm", "@scope+beta@4.5.6", "node_modules", "@scope", "beta");
    fs.mkdirSync(alpha, { recursive: true });
    fs.mkdirSync(beta, { recursive: true });
    fs.writeFileSync(path.join(alpha, "package.json"), JSON.stringify({ name: "alpha", version: "1.2.3", license: "MIT" }));
    fs.writeFileSync(path.join(beta, "package.json"), JSON.stringify({ name: "@scope/beta", version: "4.5.6", license: "Apache-2.0" }));

    expect(collectInstalledRuntimePackages(nodeModules)).toEqual([
      { name: "@scope/beta", version: "4.5.6", license: "Apache-2.0" },
      { name: "alpha", version: "1.2.3", license: "MIT" },
    ]);
  });

  test("fails when the supplied runtime tree is not a pnpm deployment", () => {
    const root = fs.mkdtempSync(path.join(os.tmpdir(), "hivegrid-sbom-missing-"));
    temporaryDirectories.push(root);

    expect(() => collectInstalledRuntimePackages(path.join(root, "node_modules"))).toThrow("virtual store not found");
  });
});