#!/usr/bin/env node
import assert from "node:assert/strict";
import { readFile } from "node:fs/promises";
import path from "node:path";
import { fileURLToPath } from "node:url";

const repoRoot = path.resolve(path.dirname(fileURLToPath(import.meta.url)), "..");
const docPath = "docs/reference/m3-loop-rollout-runbook.md";

async function readText(relativePath) {
  return readFile(path.join(repoRoot, relativePath), "utf8");
}

function extractSection(doc, heading) {
  const marker = `## ${heading}\n`;
  const start = doc.indexOf(marker);
  assert.ok(start >= 0, `missing section ${heading}`);
  const bodyStart = start + marker.length;
  const nextHeading = doc.indexOf("\n## ", bodyStart);
  return doc.slice(bodyStart, nextHeading >= 0 ? nextHeading + 1 : doc.length);
}

function assertIncludes(text, snippet, label) {
  assert.ok(text.includes(snippet), `${label} must include ${snippet}`);
}

function assertNotIncludes(text, snippet, label) {
  assert.equal(text.includes(snippet), false, `${label} must not include ${snippet}`);
}

async function main() {
  const doc = await readText(docPath);
  const boundary = extractSection(doc, "M3 Loop Boundary");

  assertIncludes(doc, "support / diagnostics / contract", "m3 runbook");
  assertIncludes(doc, "2 x hwlab-box-simu", "m3 runbook");
  assertIncludes(doc, "2 x hwlab-gateway-simu", "m3 runbook");
  assertIncludes(doc, "1 x hwlab-patch-panel", "m3 runbook");
  assertIncludes(doc, "DO1 -> patch-panel -> DI1", "m3 runbook");
  assertIncludes(doc, "deploy/deploy.yaml", "m3 runbook");
  assertIncludes(doc, "deploy/artifact-catalog.dev.json", "m3 runbook");
  assertIncludes(doc, "pikasTech/HWLAB#63", "m3 runbook");
  assertIncludes(doc, "Do not promote SOURCE / LOCAL / DRY-RUN / fixture output to `DEV-LIVE`.", "m3 runbook");
  assertIncludes(doc, "node scripts/dev-m3-hardware-loop-smoke.mjs --dry-run", "m3 runbook");
  assertIncludes(doc, "node scripts/dev-m3-hardware-loop-smoke.mjs --live --confirm-dev --expect-non-prod", "m3 runbook");
  assertIncludes(doc, "liveOperation.status: \"not_run\"", "m3 runbook");
  assertNotIncludes(boundary, "http://74.48.78.17:6666/", "m3 current boundary");
  assertNotIncludes(boundary, "http://74.48.78.17:6667/", "m3 current boundary");
  assertIncludes(boundary, "http://74.48.78.17:16666/", "m3 current boundary");
  assertIncludes(boundary, "http://74.48.78.17:16667/", "m3 current boundary");
  assertIncludes(boundary, ":6666", "m3 historical boundary");
  assertIncludes(boundary, ":6667", "m3 historical boundary");

  console.log(`validated ${docPath}`);
}

try {
  await main();
} catch (error) {
  process.stderr.write(`[validate-m3-rollout-runbook] ${error instanceof Error ? error.message : String(error)}\n`);
  process.exitCode = 1;
}