const test = require("node:test");
const assert = require("node:assert/strict");
const fs = require("node:fs");
const path = require("node:path");

const projectRoot = path.resolve(__dirname, "..");

function read(relativePath) {
  return fs.readFileSync(path.join(projectRoot, relativePath), "utf8");
}

test("legacy Cloud Run deployment workflow has been removed", () => {
  const legacyWorkflow = path.join(
    projectRoot,
    ".github",
    "workflows",
    "cd.yml",
  );

  assert.equal(fs.existsSync(legacyWorkflow), false);
});

test("repository automation files exist for CI, container publish, and Dependabot", () => {
  const expectedFiles = [
    "eslint.config.cjs",
    ".github/workflows/ci.yml",
    ".github/workflows/codeql.yml",
    ".github/workflows/image.yml",
    ".github/workflows/dependabot-auto-merge.yml",
    ".github/dependabot.yml",
  ];

  for (const relativePath of expectedFiles) {
    assert.equal(
      fs.existsSync(path.join(projectRoot, relativePath)),
      true,
      `${relativePath} should exist`,
    );
  }
});

test("container image workflow publishes to GHCR instead of legacy GCP registries", () => {
  const workflow = read(".github/workflows/image.yml");

  assert.match(workflow, /ghcr\.io/);
  assert.doesNotMatch(workflow, /gcloud|us-docker\.pkg\.dev/);
});

test("container image publishing waits for CI instead of running on pull requests directly", () => {
  const workflow = read(".github/workflows/image.yml");

  assert.match(workflow, /push:\s*\n\s*branches:\s*\n\s*- main/);
  assert.doesNotMatch(workflow, /pull_request:/);
  assert.doesNotMatch(workflow, /workflow_run:/);
});

test("workflows opt into Node 24 for JavaScript-based GitHub Actions", () => {
  const workflows = [
    read(".github/workflows/ci.yml"),
    read(".github/workflows/codeql.yml"),
    read(".github/workflows/image.yml"),
    read(".github/workflows/dependabot-auto-merge.yml"),
  ];

  for (const workflow of workflows) {
    assert.match(workflow, /FORCE_JAVASCRIPT_ACTIONS_TO_NODE24:\s*true/);
  }
});

test("CodeQL workflow uses advanced setup with repository-managed configuration", () => {
  const workflow = read(".github/workflows/codeql.yml");

  assert.match(workflow, /uses:\s*actions\/checkout@v\d+/);
  assert.match(workflow, /uses:\s*github\/codeql-action\/init@v4/);
  assert.match(workflow, /uses:\s*github\/codeql-action\/analyze@v4/);
  assert.match(workflow, /language:\s*actions/);
  assert.match(workflow, /language:\s*javascript-typescript/);
});

test("dependabot config covers npm, docker, and github-actions updates", () => {
  const dependabot = read(".github/dependabot.yml");

  assert.match(dependabot, /package-ecosystem: npm/);
  assert.match(dependabot, /package-ecosystem: docker/);
  assert.match(dependabot, /package-ecosystem: github-actions/);
});

test("dependabot groups include major upgrades instead of suppressing them", () => {
  const dependabot = read(".github/dependabot.yml");

  assert.match(dependabot, /production-dependencies:[\s\S]*-\s+major/);
  assert.match(dependabot, /development-dependencies:[\s\S]*-\s+major/);
  assert.match(dependabot, /dependency-name:\s*typescript/);
  assert.match(dependabot, /dependency-name:\s*"@koa\/bodyparser"/);
  assert.match(dependabot, /dependency-name:\s*koa/);
  assert.match(dependabot, /dependency-name:\s*set-cookie-parser/);
  assert.doesNotMatch(dependabot, /dependency-name:\s*node/);
});

test("CI workflow runs lint before tests and build", () => {
  const workflow = read(".github/workflows/ci.yml");

  assert.match(workflow, /run: npm run lint/);
  assert.match(workflow, /run: npm run test:ci/);
  assert.match(workflow, /run: npm run build/);
});

test("npm-based workflows use the same Node runtime as the container image", () => {
  const workflows = [
    read(".github/workflows/ci.yml"),
    read(".github/workflows/security-governance.yml"),
  ];

  for (const workflow of workflows) {
    assert.match(workflow, /node-version:\s*26/);
    assert.doesNotMatch(workflow, /node-version:\s*22/);
  }
});

test("CI validates Docker builds for pull requests without publishing images", () => {
  const workflow = read(".github/workflows/ci.yml");

  assert.match(workflow, /name: Validate container build/);
  assert.match(workflow, /if: github\.event_name == 'pull_request'/);
  assert.match(workflow, /push: false/);
});

test("dependabot auto-merge workflow updates stale branches before enabling auto-merge", () => {
  const workflow = read(".github/workflows/dependabot-auto-merge.yml");

  assert.match(workflow, /gh pr update-branch/);
  assert.match(workflow, /mergeStateStatus/);
  assert.match(workflow, /workflow_run:/);
  assert.match(workflow, /workflows:\s*\n\s*- CI/);
  assert.match(workflow, /gh pr list/);
});

test("Dockerfile is self-contained and no longer relies on curl-impersonate", () => {
  const dockerfile = read("Dockerfile");

  assert.match(dockerfile, /FROM node:26-bookworm-slim/);
  assert.match(dockerfile, /PUPPETEER_SKIP_DOWNLOAD=true/);
  assert.match(dockerfile, /LOCAL_DB_ROOT=\/tmp\/xread\/db/);
  assert.match(dockerfile, /STORAGE_ROOT=\/tmp\/xread\/storage/);
  assert.doesNotMatch(dockerfile, /chown -R xread:xread \/app/);
  assert.doesNotMatch(dockerfile, /curl-impersonate|LD_PRELOAD/);
});