#!/usr/bin/env bun
/**
 * validate.ts — the Festipod validation matrix.
 *
 * SCOPE (2026-10-09, after the ActivityPods-first switch; e2e probes added
 * 2026-10-13). Four layers are in the gate:
 *
 *   (a) Festipod @ui  — the UI layer. The `@ui` tag does not exist in this repo;
 *       the layer is exactly the complement of the polyfill/broker tags, and its
 *       command is, verbatim:
 *         node --import tsx/esm node_modules/@cucumber/cucumber/bin/cucumber.js \
 *           --config cucumber.json \
 *           --tags 'not @wip and not @humain and not @data and not @e2e and not @multibrowser'
 *       `cucumber.json` additionally excludes `@suspendu` and `@e2e-activitypods`
 *       (Cucumber ANDs the config tags with the CLI ones), so this stays the
 *       stack-free UI layer exactly as verified at 125 scenarios / 0 failed.
 *
 *   (b) Festipod @e2e-activitypods — the smoke over the LOCAL ActivityPods stack
 *       (pod provider + Festipod backend + the app served for real). Distinct
 *       from the suspended `@e2e`: no wallet, no broker, so `cucumber.json`
 *       excludes it. Its config is `cucumber.smoke.json`; its reproducible setup
 *       is the concept note `data-layer`, `cookbook_local-activitypods-platform.md`.
 *       Requires the stack to be UP (the app server and Chromium are started
 *       here); an unreachable stack fails the layer rather than skipping it.
 *
 *   (c) Festipod e2e rights matrix — `bun run test:e2e-rights`: three fresh
 *       users plus anonymous, every feature with positive AND negative access
 *       lines (public surface, public reads, refused writes, profile privacy,
 *       catalog and public intent, discovery, join/leave and counters,
 *       visibility toggles). Exit 0 only when every hard line holds.
 *
 *   (d) Festipod e2e revocation — `bun run test:e2e-revocation`: the app
 *       notices its registration being revoked on the pod, logs the user out,
 *       and recovers through consent.
 *
 *       (c) and (d) drive the browser through the pod's login and consent, so
 *       they need the WHOLE local stack, the app served at APP_URL included
 *       (the OIDC redirect_uri is registered for that origin only). They are
 *       STACK-GATED: the stack is probed first; when any part is unreachable
 *       both are SKIPPED — loudly, the unreachable URL named in the matrix and
 *       in the verdict, never silently — and when it is up they run, and a
 *       non-zero exit fails the layer. A fully-down stack still fails
 *       `validate` through (b), which never skips.
 *
 * SUSPENDED, NOT RUN HERE (documented skip, code preserved — nothing deleted):
 *   - `@data`, `@e2e`, `@multibrowser`, `@shared-wallet`, `@smoke` scenarios are
 *     polyfill/broker-bound: they sign the shared NextGraph wallet through the
 *     harness (`src/shared/test-harness/harness-ng.tsx`). They are tagged
 *     `@suspendu` in the feature files and excluded there, awaiting the NextGraph
 *     workstream.
 *   - the SDK's own tests (nextgraph/ng-eventually-js) are NOT Festipod's and are
 *     no longer run from here (concept `bdd-testing`,
 *     `rule_tests-validate-festipod-not-the-sdk`).
 *
 * A smoke layer that cannot reach its stack FAILS, loudly — it never silently
 * skips. A skipped e2e probe never counts as passed: it is reported as
 * SKIPPED with its reason. Exit code is non-zero if any layer fails.
 */

import { spawnSync } from "child_process";

// ─── Config ────────────────────────────────────────────────────────────────

const REPO_DIR = process.cwd();

/** The UI layer, verbatim — see the header. */
const UI_TAGS = "not @wip and not @humain and not @data and not @e2e and not @multibrowser";

/** The ActivityPods smoke, minus its documented suspends. */
const APODS_TAGS = "@e2e-activitypods and not @suspendu";

const TIMEOUT_UI_MS = 15 * 60 * 1000; // 15 min
const TIMEOUT_APODS_MS = 10 * 60 * 1000; // 10 min
const TIMEOUT_RIGHTS_MS = 25 * 60 * 1000; // 25 min (the matrix bounds itself at 15 min of UI drives)
const TIMEOUT_REVOCATION_MS = 15 * 60 * 1000; // 15 min (the probe bounds itself at 10 min)

/** The local stack, with the same defaults and env overrides as the e2e scripts. */
const strip = (u: string): string => u.replace(/\/+$/, "");
const POD_PROVIDER = strip(process.env.POD_PROVIDER_URL || process.env.VITE_POD_PROVIDER_URL || 'http://localhost:3000');
const POD_FRONT = strip(process.env.POD_FRONTEND_URL || "http://localhost:5000");
const BACKEND = strip(process.env.BACKEND_URL || process.env.VITE_BACKEND_URL || 'http://localhost:3005');
const APP = strip(process.env.APP_URL || `http://localhost:${process.env.PORT || 4005}`);
const FUSEKI = strip(process.env.FUSEKI_URL || "http://localhost:3030");

/** What the browser-driven e2e probes need answering 200 — every piece of the local stack. */
const E2E_STACK: Array<[string, string]> = [
  // The triplestore both servers store into: with it down they still answer their static routes
  // (observed 2026-10-13: the pod's OpenID configuration 200 while every sign-up failed).
  ["triplestore (fuseki)", `${FUSEKI}/`],
  ["pod provider", `${POD_PROVIDER}/.well-known/openid-configuration`],
  ["pod frontend (login + consent)", `${POD_FRONT}/`],
  ["Festipod backend", `${BACKEND}/app`],
  ["Festipod app at APP_URL (the only registered OIDC redirect origin)", `${APP}/`],
];

// ─── Helpers ───────────────────────────────────────────────────────────────

interface StepResult {
  label: string;
  status: "passed" | "failed" | "error" | "skipped";
  /** Failure lines; for a skipped layer, why it was skipped. */
  failures: string[];
  exitCode: number;
  durationMs: number;
}

/** The Cucumber invocation every layer shares (same form as the UI gate command). */
function cucumberArgs(config: string, tags: string): string[] {
  return [
    "--import",
    "tsx/esm",
    "node_modules/@cucumber/cucumber/bin/cucumber.js",
    "--config",
    config,
    "--tags",
    tags,
  ];
}

function runStep(
  label: string,
  args: string[],
  timeoutMs: number,
  command = "node",
  extract: (output: string) => string[] = extractFailures,
): StepResult {
  const t0 = Date.now();
  console.log(`\n${"═".repeat(64)}`);
  console.log(`▶  ${label}`);
  console.log(`   ${command} ${args.join(" ")}`);
  console.log(`${"═".repeat(64)}`);

  const result = spawnSync(command, args, {
    cwd: REPO_DIR,
    env: process.env,
    encoding: "utf-8",
    timeout: timeoutMs,
    maxBuffer: 20 * 1024 * 1024,
  });

  const durationMs = Date.now() - t0;
  const combined = (result.stdout ?? "") + "\n" + (result.stderr ?? "");
  process.stdout.write(result.stdout ?? "");
  process.stderr.write(result.stderr ?? "");

  if (result.error) {
    return {
      label,
      status: "error",
      failures: [`Process error: ${result.error.message}`],
      exitCode: result.status ?? 1,
      durationMs,
    };
  }
  return {
    label,
    status: (result.status ?? 1) === 0 ? "passed" : "failed",
    failures: extract(combined),
    exitCode: result.status ?? 1,
    durationMs,
  };
}

/** A stack-gated layer that did not run: reported, never counted as passed. */
function skippedStep(label: string, reasons: string[]): StepResult {
  console.log(`\n${"═".repeat(64)}`);
  console.log(`⏭️  ${label} — SKIPPED: the local stack is down`);
  for (const r of reasons) console.log(`   ↳ ${r}`);
  console.log(`${"═".repeat(64)}`);
  return { label, status: "skipped", failures: reasons, exitCode: 0, durationMs: 0 };
}

/** Every part of the e2e stack that does not answer 200, as "name: url → status". Empty when the stack is up. */
async function e2eStackDown(): Promise<string[]> {
  const down: string[] = [];
  for (const [name, url] of E2E_STACK) {
    let status: number | string;
    try {
      status = (await fetch(url, { signal: AbortSignal.timeout(5000) })).status;
    } catch (e) {
      status = `unreachable (${e instanceof Error ? e.message : String(e)})`;
    }
    if (status !== 200) down.push(`${name}: ${url} → ${typeof status === "number" ? `HTTP ${status}` : status}`);
  }
  return down;
}

/** The rights matrix's verdict lines: every failed hard line, any notice, and the verdict. */
function extractMatrixFailures(output: string): string[] {
  return output
    .split("\n")
    .map((l) => l.trim())
    .filter((l) => /^(FAILED: |VERDICT: FAIL|!!! (?!NOTICE:)\S)/.test(l) || l.includes("RIGHTS MATRIX — ABORTED"));
}

/**
 * The revocation probe's JSON report (pretty-printed: its top-level braces are
 * the only ones at column 0): the phases that did not hold, and unexpected ≥400s.
 */
function extractRevocationFailures(output: string): string[] {
  const start = output.lastIndexOf("\n{\n") + 1;
  const end = output.indexOf("\n}", start);
  try {
    const report = JSON.parse(output.slice(start, end + 2)) as Record<string, unknown>;
    if (report["ok"] === true) return [];
    const failures: string[] = [];
    for (const phase of ["positive", "negative", "recovered"]) {
      const p = report[phase] as { ok?: unknown } | undefined;
      if (p && p.ok !== true) failures.push(`phase ${phase}: ok=${String(p.ok)}`);
    }
    const fatal = report["fatal4xx"];
    if (Array.isArray(fatal) && fatal.length) failures.push(`${fatal.length} unexpected ≥400 response(s)`);
    if (typeof report["fatal"] === "string") failures.push(`aborted: ${report["fatal"]}`);
    return failures.length ? failures : ["ok=false"];
  } catch {
    return ["no JSON report found in the output"];
  }
}

/** The failure lines worth surfacing: failed scenario names and the summary. */
function extractFailures(output: string): string[] {
  const lines = output.split("\n");
  const failures: string[] = [];
  for (const line of lines) {
    const l = line.trim();
    if (/^(✗|✕|×|✖|✘)\s/.test(l)) failures.push(l);
    if (/\d+ sc[eé]narios?.*(failed|undefined)/.test(l) && !failures.includes(l)) {
      failures.push(l);
    }
  }
  return failures.filter(Boolean);
}

function fmtDuration(ms: number): string {
  if (ms < 60_000) return `${(ms / 1000).toFixed(1)}s`;
  return `${Math.floor(ms / 60_000)}m${((ms % 60_000) / 1000).toFixed(0)}s`;
}

function printMatrix(steps: StepResult[]): void {
  console.log("\n");
  console.log("╔══════════════════════════════════════════════════════════╗");
  console.log("║                  VALIDATION MATRIX                       ║");
  console.log("╚══════════════════════════════════════════════════════════╝\n");
  const maxLabel = Math.max(...steps.map((s) => s.label.length));
  for (const step of steps) {
    const icon = step.status === "passed" ? "✅" : step.status === "failed" ? "❌" : step.status === "skipped" ? "⏭️ " : "⚠️ ";
    const time = step.status === "skipped" ? "SKIPPED — local stack down" : fmtDuration(step.durationMs);
    console.log(`  ${icon}  ${step.label.padEnd(maxLabel + 2)}  [${time}]`);
    for (const f of step.failures) console.log(`       ↳ ${f}`);
  }
  console.log("");
  console.log("  ℹ️   @data/@e2e/@multibrowser/@shared-wallet/@smoke : suspendus (workstream NextGraph).");
  const failed = steps.filter((s) => s.status === "failed" || s.status === "error");
  const skipped = steps.filter((s) => s.status === "skipped");
  if (skipped.length) {
    console.log(`  🟡  ${skipped.length} LAYER(S) SKIPPED (local stack down — NOT validated): ${skipped.map((s) => s.label).join(", ")}`);
  }
  console.log(failed.length > 0
    ? `  🔴  ${failed.length} LAYER(S) FAILED: ${failed.map((s) => s.label).join(", ")}`
    : skipped.length
      ? "  🟢  NO LAYER FAILED — but the skipped layers above were not run"
      : "  🟢  ALL LAYERS PASSED");
  console.log(`  ⏱   Total: ${fmtDuration(steps.reduce((sum, s) => sum + s.durationMs, 0))}`);
  console.log("");
}

// ─── Main ──────────────────────────────────────────────────────────────────

async function main(): Promise<void> {
  console.log(`🔍  Festipod — validation (repo: ${REPO_DIR})`);

  const steps: StepResult[] = [];
  steps.push(runStep("festipod:@ui", cucumberArgs("cucumber.json", UI_TAGS), TIMEOUT_UI_MS));
  steps.push(runStep("festipod:@e2e-activitypods", cucumberArgs("cucumber.smoke.json", APODS_TAGS), TIMEOUT_APODS_MS));

  // Stack-gated e2e probes: one stack probe, then both run or both are skipped (loudly).
  const down = await e2eStackDown();
  if (down.length) {
    const reasons = [...down, "start the stack: concept `data-layer`, `cookbook_local-activitypods-platform.md`"];
    steps.push(skippedStep("festipod:e2e-rights", reasons));
    steps.push(skippedStep("festipod:e2e-revocation", reasons));
  } else {
    steps.push(runStep("festipod:e2e-rights", ["run", "test:e2e-rights"], TIMEOUT_RIGHTS_MS, "bun", extractMatrixFailures));
    steps.push(runStep("festipod:e2e-revocation", ["run", "test:e2e-revocation"], TIMEOUT_REVOCATION_MS, "bun", extractRevocationFailures));
  }

  printMatrix(steps);
  process.exit(steps.some((s) => s.status === "failed" || s.status === "error") ? 1 : 0);
}

void main();