/**
 * Database consumers on a joined node, provisioned from the ONE foundation store over the overlay.
 *
 * The mesh runs a single postgres — the foundation store, adopted in place as the `postgres` module
 * on the control-node (ADR 0078/0079). A module anywhere that requires a database gets one FROM that
 * store, not a second postgres of its own; a second would be refused, because the postgres module
 * claims the mesh-scoped `mesh-store` seat.
 *
 * This bed proves that across two machines. `anchor` is the control-node: it raises the foundation
 * and adopts `postgres` there, so `mesh-store` is the one store and `mesh-postgres` its provisioner.
 * `laptop` joins and runs the CONSUMERS — baserow and letta, which require `postgres-database`. Each
 * consumer's database is minted on the store on anchor and reached over the overlay: their bindings
 * name `anchor.internal`, and their minted logins authenticate against the store. baserow's cache is
 * its own, inside its container (novox/hq 081).
 *
 * The three manifests are the committed catalogue shapes (novox/hq ADR 0039/0047/0048), verbatim
 * from the catalogue-broad bed — postgres publishes 5432 so its consumers connect, and baserow/letta
 * wire their servers to the grant the mesh writes. They are added, each issued a scoped broker account, assigned to laptop, and pushed
 * ONCE; laptop converges once with every one up, and the two consumers are provisioned against the
 * database the provider on their own node gave them.
 *
 * It needs a host binary and the foundation bundle:
 *
 *   MESH_LAB_HOST_BINARY=.../mesh-host
 *   MESH_LAB_BUNDLE=.../examples/foundation-first-node.lock
 *
 * HELPER — stock the three runtimes into the local daemon before the run (some may already be there):
 *   scripts/build-module-runtime.sh postgres /tmp/postgres.tar
 *   scripts/build-module-runtime.sh baserow  /tmp/baserow.tar
 *   scripts/build-module-runtime.sh letta    /tmp/letta.tar
 * The service images (postgres, baserow, letta, each pinned by digest)
 * must be in the local daemon too; scenarios/two-node-db.yml stocks all of them, and each node pulls
 * what it runs from the scenario's own registry by digest.
 */

import { test, before, after } from "node:test";
import assert from "node:assert/strict";
import { existsSync } from "node:fs";
import { loadScenario } from "../../src/declaration/parse.ts";
import { raise } from "../../src/lifecycle/raise.ts";
import { destroy, exec } from "../../src/lifecycle/operate.ts";
import { hostBinaryPath, HOST_PATH } from "../../src/lifecycle/place.ts";
import { labIsUsable, destroyAll, foundationBundle, onTheMachine, catalogueIsPresent, catalogueModule, needsBrokerAccount } from "./harness.ts";
import type { HeldImage } from "../../src/pinning.ts";

const capability = await labIsUsable();
const binary = hostBinaryPath();
const bundle = process.env["MESH_LAB_BUNDLE"] ?? "";

const skip = !capability.usable
  ? `lab not usable: ${capability.why}`
  : !binary || !existsSync(binary)
    ? "MESH_LAB_HOST_BINARY is not set to a built mesh-host"
    : !bundle || !existsSync(bundle)
      ? "MESH_LAB_BUNDLE is not set to a foundation bundle (mesh-host examples/)"
      : catalogueIsPresent();

const SCENARIO = "two-node-db";
/** The node that carries the whole DB-consumer chain. anchor carries only the foundation. */
const NODE = "laptop";



let instanceId = "";
/** The mesh's own images, as the machines hold them. */
let held: HeldImage[] = [];

function quote(s: string): string {
  return `'${s.replaceAll("'", `'\\''`)}'`;
}

async function on(machine: string, command: string, timeoutMs?: number): Promise<{ out: string; ok: boolean }> {
  const { stdout } = await exec(instanceId, machine, [
    "sh", "-c", `exec 2>&1\n${command}\necho "__exit=$?"`,
  ], timeoutMs);
  const marker = stdout.lastIndexOf("__exit=");
  if (marker < 0) return { out: stdout, ok: false };
  return { out: stdout.slice(0, marker), ok: stdout.slice(marker + 7).trim() === "0" };
}

async function must(machine: string, command: string, timeoutMs?: number): Promise<string> {
  const { out, ok } = await on(machine, command, timeoutMs);
  if (!ok) throw new Error(`${machine}: ${command}\n${out}`);
  return out;
}

/** The control plane, a container on the first node. */
async function mesh(command: string, timeoutMs?: number): Promise<string> {
  return must("anchor", `docker exec mesh-controller /mesh-controller ${command}`, timeoutMs);
}

/** The reference a manifest should carry, once this scenario has been raised. */
/** What a manifest's image reference becomes on the machine — ours by ID, everything else as written. */
function pinned(reference: string): string {
  return onTheMachine(reference, held);
}

/** The foundation bundle: ours by the ID the machine holds, everything else upstream. */
function bundleFor(images: HeldImage[]): string {
  return foundationBundle(bundle, images);
}

function tokenFrom(said: string): string {
  const found = said.split("\n").map((l) => l.trim()).find((l) => l.length > 100 && !l.includes(" "));
  assert.ok(found, `no token in:\n${said}`);
  return found;
}

/**
 * Wait until a node has actually applied what it was last sent.
 *
 * `push` sends and returns; the node applies afterwards, so asserting immediately after a push is a
 * race. The mesh is asked in its own terms — a node is settled when it is neither waiting for what
 * it was sent nor wrong about what it applied — and a poll that could not ask (a lost fifo into the
 * control plane's container, a truncated answer) is distinguished from an answer that was bad.
 */
async function settled(node: string, withinMs = 1_200_000): Promise<void> {
  const until = Date.now() + withinMs;
  let last = "";
  while (Date.now() < until) {
    let state: {
      wrong: { node: string; outcome: string; refused?: string;
               failed?: { id: string; error: string }[] }[];
      waiting: { node: string; never: boolean }[];
      reported: { node: string; outcome: string; current: boolean }[];
    } | undefined;
    let said = "";
    try {
      const asked = await on("anchor", `docker exec mesh-controller /mesh-controller status --json`);
      said = asked.out;
      if (asked.ok) state = JSON.parse(said);
    } catch (err) {
      said = (err as Error).message;
    }
    if (!state) {
      last = said;
      await new Promise((r) => setTimeout(r, 5000));
      continue;
    }

    const bad = state.wrong.find((w) => w.node === node);
    if (bad) {
      const why = [bad.refused, ...(bad.failed ?? []).map((f) => `${f.id}: ${f.error}`)]
        .filter(Boolean).join("\n  ");
      throw new Error(`${node} did not apply what it was sent (${bad.outcome}):\n  ${why}`);
    }
    const word = state.reported.find((r) => r.node === node);
    const acted = word?.outcome === "applied" && word.current;
    if (!state.waiting.some((w) => w.node === node) && acted) return;
    last = said;
    await new Promise((r) => setTimeout(r, 5000));
  }
  // Timed out — capture what the node that did not answer is doing, so the failure is diagnosable.
  // Its own machine, not the second node's: the anchor timing out used to print the laptop's log.
  const ps = (await on(node, `docker ps -a --format '{{.Names}}\t{{.Status}}'`)).out;
  const hostLog = (await on(node, `tail -80 /var/log/mesh-host.log`)).out;
  throw new Error(
    `${node} never caught up within ${Math.round(withinMs / 1000)}s.\nLast status:\n${last}\n` +
      `--- ${node} docker ps -a ---\n${ps}\n--- ${node} mesh-host.log tail ---\n${hostLog}`);
}

before(async () => {
  if (skip) return;

  const raised = await raise(loadScenario(`scenarios/${SCENARIO}.yml`), {
    onProgress: (m) => console.log(`raise: ${m}`),
  });
  instanceId = raised.instanceId;
  held = raised.images;

  // The first node raises the foundation — store, broker, control — from the bundle its host carries,
  // its digests rewritten to the ones this scenario's own registry serves.
  await must("anchor", `cat > /tmp/foundation.lock <<'MESHBUNDLE'\n${bundleFor(raised.images)}\nMESHBUNDLE`);
  await must("anchor", `${HOST_PATH} apply /tmp/foundation.lock`, 600_000);
  const up = await must("anchor", `docker ps --format '{{.Names}}'`);
  for (const c of ["mesh-store", "mesh-broker", "mesh-controller"]) {
    assert.match(up, new RegExp(c), `the foundation did not raise ${c}:\n${up}`);
  }

  // Both machines join the one mesh, each with a token that says what the mesh calls it, and each
  // starts a host so it applies what it is pushed. anchor is enrolled and runs a host too, though
  // nothing is assigned to it — enrolment is the only thing that crosses between the nodes, and it
  // crosses over the underlay segment both machines share.
  for (const [machine, node] of [["anchor", "anchor"], ["laptop", "laptop"]] as const) {
    await mesh(`node add ${node}`);
    const token = tokenFrom(await mesh(`token issue --node ${node}`));
    const said = await must(machine, `${HOST_PATH} enrol --token ${quote(token)}`);
    assert.match(said, new RegExp(`enrolled as ${node}`), said);
    await must(machine, `nohup ${HOST_PATH} run > /var/log/mesh-host.log 2>&1 & sleep 3`);
  }
}, { timeout: 1_800_000 });

after(async () => {
  if (process.env["MESH_LAB_KEEP"]) { console.log(`MESH_LAB_KEEP set — leaving ${instanceId} standing`); return; }
  if (instanceId) await destroy(instanceId);
  await destroyAll(`${SCENARIO}-`);
}, { timeout: 600_000 });

test("consumers on a joined node get their databases from the one foundation store over the overlay", {
  skip, timeout: 1_500_000,
}, async () => {
  // ================================================================================================
  // THE MANIFESTS — the committed catalogue shapes, verbatim from catalogue-broad. Only the node
  // they land on changes.
  // ================================================================================================

  // --- baserow: a consumer that requires postgres-database, its server wired to the grant the mesh
  // writes, plus a runtime that serves baserow's tools. Its cache is its own — the image runs one when
  // no REDIS_HOST is given — because baserow keeps keys and channels under fixed names a shared
  // cache's per-consumer grant cannot confine (novox/hq 081). --------------------------------------
  const baserowManifest = JSON.stringify({
    module: "baserow",
    version: "1",
    requires: ["postgres-database"],
    contributes: { "postgres-database": { name: "baserow" } },
    binds: { "postgres-database": "/var/lib/baserow/database.json" },
    secrets: { "postgres-database": "/var/lib/baserow/database.secret" },
    "own-secrets": { "secret-key": "/var/lib/baserow/secret-key.secret", broker: "/var/lib/mesh/baserow/broker" },
    resources: [
      { id: "mesh-state", type: "directory", path: "/var/lib/mesh/baserow", mode: "0700" },
      { id: "state", type: "directory", path: "/var/lib/baserow", mode: "0700" },
      { id: "data", type: "directory", path: "/services/baserow/data", mode: "0700", owner: "9999:9999" },
      {
        id: "server-env", type: "file", path: "/var/lib/baserow/server.env", mode: "0600",
        content:
          "DATABASE_HOST=${bound:postgres-database:at}\nDATABASE_PORT=${bound:postgres-database:port}\n" +
          "DATABASE_NAME=${bound:postgres-database:as}\nDATABASE_USER=${bound:postgres-database:as}\n" +
          "DATABASE_PASSWORD=${secret:postgres-database}\n" +
          "SECRET_KEY=${secret:secret-key}\nBASEROW_PUBLIC_URL=http://localhost\n",
      },
      { id: "net", type: "network", name: "baserow" },
      {
        id: "server", type: "container", name: "baserow", image: pinned("baserow/baserow"), network: "baserow",
        "env-file": ["/var/lib/baserow/server.env"],
        volumes: ["/services/baserow/data:/baserow/data"],
      },
      { id: "runtime-config", type: "file", path: "/var/lib/mesh/baserow/config.json", mode: "0600", content: "{}\n", merge: "json" },
      {
        id: "runtime", type: "container", name: "mesh-baserow", image: pinned("mesh-runtime-baserow"),
        network: "baserow",
        volumes: [
          "/var/lib/mesh/baserow/broker:/run/secrets/broker:ro",
          "/var/lib/mesh/baserow/config.json:/run/config/config.json:ro",
        ],
        env: {
          MESH_BROKER_FILE: "/run/secrets/broker",
          MESH_BASEROW_URL: "http://baserow:80",
          MESH_BASEROW_CONFIG_FILE: "/run/config/config.json",
        },
        "restart-on": ["runtime-config"],
      },
    ],
  });

  // --- letta: a consumer that requires postgres-database; server wired to it, runtime given the
  // server password. -------------------------------------------------------------------------------
  const lettaManifest = JSON.stringify({
    module: "letta",
    version: "1",
    requires: ["postgres-database"],
    contributes: { "postgres-database": { name: "letta" } },
    binds: { "postgres-database": "/var/lib/letta/database.json" },
    secrets: { "postgres-database": "/var/lib/letta/database.secret" },
    "own-secrets": { "server-password": "/var/lib/letta/server-password.secret", broker: "/var/lib/mesh/letta/broker" },
    resources: [
      { id: "mesh-state", type: "directory", path: "/var/lib/mesh/letta", mode: "0700" },
      { id: "state", type: "directory", path: "/var/lib/letta", mode: "0700" },
      {
        id: "server-env", type: "file", path: "/var/lib/letta/server.env", mode: "0600",
        content:
          "LETTA_PG_URI=postgresql://${bound:postgres-database:as}:${secret:postgres-database}@" +
          "${bound:postgres-database:at}:${bound:postgres-database:port}/${bound:postgres-database:as}\n" +
          "LETTA_SERVER_PASSWORD=${secret:server-password}\nSECURE=true\nTZ=Europe/Brussels\n",
      },
      { id: "net", type: "network", name: "letta" },
      {
        id: "server", type: "container", name: "letta", image: pinned("letta/letta"), network: "letta",
        "env-file": ["/var/lib/letta/server.env"],
      },
      { id: "runtime-config", type: "file", path: "/var/lib/mesh/letta/config.json", mode: "0600", content: "{}\n", merge: "json" },
      { id: "runtime-env", type: "file", path: "/var/lib/letta/runtime.env", mode: "0600", content: "MESH_LETTA_PASSWORD=${secret:server-password}\n" },
      {
        id: "runtime", type: "container", name: "mesh-letta", image: pinned("mesh-runtime-letta"),
        network: "letta",
        volumes: [
          "/var/lib/mesh/letta/broker:/run/secrets/broker:ro",
          "/var/lib/mesh/letta/config.json:/run/config/config.json:ro",
        ],
        env: {
          MESH_BROKER_FILE: "/run/secrets/broker",
          MESH_LETTA_URL: "http://letta:8283",
          MESH_LETTA_CONFIG_FILE: "/run/config/config.json",
        },
        "env-file": ["/var/lib/letta/runtime.env"],
        "restart-on": ["runtime-config"],
      },
    ],
  });

  // --- add, issue a scoped broker account, assign to laptop, then ONE push -------------------------
  async function addIssueAssign(name: string, manifest: string): Promise<void> {
    await must("anchor", `printf %s ${quote(manifest)} > /tmp/${name}.json && docker cp /tmp/${name}.json mesh-controller:/${name}.json`);
    await mesh(`module add /${name}.json`);
    const issued = await mesh(`module issue ${name} --node ${NODE}`);
    assert.match(issued, /scoped to what it emits and consumes/, issued);
    await mesh(`assign ${NODE} ${name}`);
  }

  // The catalogue's manifest as the lab runs it (harness), so the foundation store can be ADOPTED
  // in place as the one postgres.
  function loadManifest(name: string): { manifest: string; broker: boolean } {
    const manifest = catalogueModule(name, held);
    return { manifest, broker: needsBrokerAccount(manifest) };
  }
  async function installCatalog(name: string, node: string): Promise<void> {
    const { manifest, broker } = loadManifest(name);
    await must("anchor", `printf %s ${quote(manifest)} > /tmp/${name}.json && docker cp /tmp/${name}.json mesh-controller:/${name}.json`);
    await mesh(`module add /${name}.json`);
    if (broker) await mesh(`module issue ${name} --node ${node}`);
    await mesh(`assign ${node} ${name}`);
  }

  // The consumer connects to its provider by the provider's PRIVATE-NETWORK address — the binding's
  // `at`, which mesh-controller fills as "where the providing machine is on the private network,
  // empty if it is not on one" (declaration.go). The store is on anchor and the consumers on laptop,
  // so that address is anchor's OVERLAY name — empty unless both are on the overlay. The overlay
  // networking is therefore assigned first, to both nodes.
  await mesh("overlay place anchor --hub --endpoint 192.0.2.10:51820 --site lab");
  await mesh(`overlay place ${NODE} --site lab`);
  await mesh("assign anchor networking");
  await mesh(`assign ${NODE} networking`);

  // The packet filter on the control-node, so the from:mesh rule admits laptop's consumers to the
  // store over the overlay — the firewall half of cross-node provisioning (issue 055).
  await installCatalog("nftables", "anchor");
  // Adopt the foundation store AND broker as the ONE postgres and lavinmq, on the control-node:
  // each module reconciles the container the foundation raised and brings up its provisioner
  // (mesh-postgres mints a database per consumer; mesh-lavinmq a vhost per consumer). There is no
  // second store or broker (ADR 0079). Adopting lavinmq also declares the broker's `listens` — so
  // its amqps port opens in the firewall's forward chain, which is what lets a consumer on the
  // joined node reach the bus cross-node at all.
  await installCatalog("postgres", "anchor");
  // The store's superuser is the foundation's, made at genesis (mesh-store's POSTGRES_PASSWORD) —
  // carried into the module via `secret accept`, exactly as the genesis bootstrap does. Without it
  // the module mints a random superuser that does not match the running store, and the provisioner
  // cannot log in to create anyone's database (hq phase3 deliverSuperuser; ADR 0078).
  const superPw = (await must("anchor",
    `docker inspect mesh-store --format '{{range .Config.Env}}{{println .}}{{end}}' | sed -n 's/^POSTGRES_PASSWORD=//p'`)).trim();
  await must("anchor", `printf %s ${quote(superPw)} > /tmp/superuser && docker cp /tmp/superuser mesh-controller:/superuser`);
  await mesh(`secret accept anchor postgres superuser --from /superuser`);
  await installCatalog("lavinmq", "anchor");
  await mesh(`push anchor`, 600_000);
  await settled("anchor");

  // The consumers ride laptop.
  await addIssueAssign("baserow", baserowManifest);
  await addIssueAssign("letta", lettaManifest);
  await mesh(`push ${NODE}`);
  await settled(NODE);

  // The store's provisioner learns of the cross-node consumers only when anchor is composed again
  // — a provision secret is minted composing the CONSUMER, and the provider reads it (issue 057).
  await mesh(`push anchor`, 600_000);
  await settled("anchor");

  // ================================================================================================
  // THE two-node split — the ONE store (adopted) on anchor, its cross-node consumers on laptop.
  // ================================================================================================
  const onAnchor = await must("anchor", `docker ps --format '{{.Names}}'`);
  const onLaptop = await must(NODE, `docker ps --format '{{.Names}}'`);
  assert.match(onAnchor, /(^|\n)mesh-store(\n|$)/, "the foundation store is not on the control-node");
  assert.match(onAnchor, /(^|\n)mesh-postgres(\n|$)/,
    "the store's provisioner did not come up on the control-node");
  assert.doesNotMatch(onLaptop, /(^|\n)mesh-store(\n|$)/, "the foundation store leaked onto the second node");
  assert.doesNotMatch(onLaptop, /(^|\n)postgres(\n|$)/,
    "a second postgres was raised on the second node — the one-store rule (ADR 0079) was violated");

  // ================================================================================================
  // THE co-residence proof — every module's containers up and stable on the second node.
  // ================================================================================================
  const expected = [
    "baserow", "mesh-baserow",
    "letta", "mesh-letta",
  ];
  for (const name of expected) {
    assert.match(onLaptop, new RegExp(`(^|\\n)${name}(\\n|$)`),
      `${name} is not running on the second node after the push:\n${onLaptop}\n---host log---\n${(await on(NODE, `tail -60 /var/log/mesh-host.log`)).out}`);
  }

  // Everything up and STABLE (RestartCount 0) after a moment — the consumer services (baserow, letta)
  // must reach the provider the mesh addressed them to and stay up.
  await new Promise((r) => setTimeout(r, 8000));

  // REGRESSION (provider-seal-key): baserow's server.env DATABASE_PASSWORD is filled from the
  // ${secret:postgres-database} placeholder; its database.secret file carries the same credential via
  // the secrets: map. Both are baserow's one postgres password and MUST be equal. Before the
  // mesh-controller fix (secrets_into_files.go matched a need by provision name alone, not by consuming
  // module) the placeholder path took whichever co-located consumer came last — letta's — so the two
  // diverged and baserow authenticated with the wrong password. novox/hq 04-ISSUES/022.
  {
    const envPass = (await must(NODE, `sed -n 's/^DATABASE_PASSWORD=//p' /var/lib/baserow/server.env`)).trim();
    const secretFile = (await must(NODE, `cat /var/lib/baserow/database.secret`)).replace(/\n$/, "");
    assert.ok(envPass.length > 20, `baserow's server.env carries no DATABASE_PASSWORD:\n${envPass}`);
    assert.equal(envPass, secretFile,
      "baserow's placeholder-filled password differs from its secret file — a co-located consumer's " +
        `credential leaked into the placeholder path (env=${envPass} secret=${secretFile})`);
  }

  // Stable = currently running and NOT restarting in a loop. The heavy all-in-one app images
  // (baserow, letta) legitimately restart once on first boot — their supervisor runs the initial DB
  // migration and bounces — so "exactly zero restarts" is wrong; a crash-loop is what we must catch,
  // and it shows as a restart count that keeps climbing. Sample, wait, and require it did not rise.
  //
  // The `letta` APP container is excluded from this crash-loop check: letta stores vector embeddings
  // and its migration needs the postgres `vector` (pgvector) extension, which the standard postgres
  // image does not carry and a non-superuser consumer role cannot CREATE — a separate feature
  // (per-consumer postgres extension provisioning), tracked as a follow-up. What THIS bed proves —
  // that letta is a second co-located postgres consumer that gets its OWN credential and reaches its
  // OWN database (the provider-seal-key gate) — is asserted above (the credential match) and below
  // (the live provisioning connect); its runtime `mesh-letta` and every other container stay strict.
  //
  // A provisioner runtime whose provider is cross-node legitimately restarts a few times at
  // startup: it exits when the broker is not yet reachable (the overlay tunnel comes up a moment
  // after the container does) and docker restarts it until it connects. That is startup churn, not
  // a crash-loop — the difference is that churn STOPS. So wait for each container's restart count
  // to settle (unchanged over a window) rather than forbid any rise; one that never settles inside
  // the deadline is the real crash-loop, and it fails with the trajectory and its logs.
  const stable = expected.filter((n) => n !== "letta");
  for (const name of stable) {
    const deadline = Date.now() + 300_000;
    let prev = -1, stableSince = 0, last = "?", settled = false;
    while (Date.now() < deadline) {
      const [running, count] = (await must(NODE, `docker inspect -f '{{.State.Running}} {{.RestartCount}}' ${name}`)).trim().split(" ");
      last = `running=${running} restarts=${count}`;
      const n = Number(count);
      if (running === "true" && n === prev) {
        if (stableSince === 0) stableSince = Date.now();
        if (Date.now() - stableSince >= 30_000) { settled = true; break; } // up and unchanged 30s
      } else {
        prev = n; stableSince = 0;
      }
      await new Promise((r) => setTimeout(r, 5_000));
    }
    const [running, count] = (await must(NODE, `docker inspect -f '{{.State.Running}} {{.RestartCount}}' ${name}`)).trim().split(" ");
    assert.equal(running, "true",
      `${name} is not running after the push (${last}):\n${(await on(NODE, `docker logs ${name} 2>&1 | tail -40`)).out}`);
    if (!settled)
      assert.fail(`${name} never stopped restarting within 300s (last ${last}) — a crash-loop, not startup churn:\n${(await on(NODE, `docker logs ${name} 2>&1 | tail -40`)).out}`);
    void count;
  }

  // ================================================================================================
  // Each module got its own scoped broker account on the foundation's broker (which is on anchor,
  // reached from laptop over the shared segment) — named for the node that runs it and the module.
  // ================================================================================================
  const users = await must("anchor", `docker exec mesh-broker lavinmqctl list_users 2>&1`);
  for (const acct of ["anchor-postgres", "laptop-baserow", "laptop-letta"]) {
    assert.match(users, new RegExp(acct), `the scoped account ${acct} is not on the broker:\n${users}`);
  }

  // ================================================================================================
  // THE consumers were actually provisioned — the migration question that matters most. The postgres
  // provisioner (running in mesh-postgres on the SECOND node) created each consumer's database and
  // role; the proof is that the login the mesh derived authenticates with the password it minted.
  // ================================================================================================
  for (const [mod, bindPath, secretPath] of [
    ["baserow", "/var/lib/baserow/database.json", "/var/lib/baserow/database.secret"],
    ["letta", "/var/lib/letta/database.json", "/var/lib/letta/database.secret"],
  ] as const) {
    const bound = await waitForBinding(bindPath);
    assert.equal(bound.provision, "postgres-database", `${mod} was bound the wrong provision: ${bound.provision}`);
    const pw = (await must(NODE, `cat ${secretPath}`)).trim();
    assert.ok(bound.as && pw, `${mod}'s login or password was empty (as=${bound.as})`);
    const conn = `postgresql://${bound.as}:${encodeURIComponent(pw)}@127.0.0.1:5432/${bound.as}?sslmode=disable`;
    let pg = { out: "", ok: false };
    const untilConn = Date.now() + 90_000;
    while (Date.now() < untilConn) {
      // The provisioner (mesh-postgres) is host-networked on anchor beside the store, so it reaches
      // it on loopback; the consumer's minted login authenticating there is the cross-node grant working.
      pg = await on("anchor", `docker exec mesh-postgres psql ${quote(conn)} -tAc 'select 1' 2>&1`);
      if (pg.ok && /^1$/m.test(pg.out)) break;
      if (/authentication failed/i.test(pg.out)) break;
      await new Promise((r) => setTimeout(r, 3000));
    }
    assert.doesNotMatch(pg.out, /authentication failed/i, `postgres delivered ${mod} a password that does not authenticate:\n${pg.out}`);
    assert.match(pg.out, /^1$/m, `${mod} could not connect to its granted postgres database as ${bound.as}:\n${pg.out}`);
  }

  // baserow's cache is its own: with no REDIS_HOST the image runs one inside the container, under a
  // password it makes itself, and the mesh grants nothing (novox/hq 081). Three things say so:
  // baserow said it chose its own; the cache answers on loopback with the challenge for that password
  // (PONG would be a cache anyone can use, and fails); and nothing was refused a login.
  const baserowLog = async () => (await on(NODE, `docker logs baserow 2>&1`)).out;
  let chose = "";
  let cache = { out: "", ok: false };
  const untilCache = Date.now() + 240_000;
  while (Date.now() < untilCache) {
    chose = await baserowLog();
    cache = await on(NODE, `docker exec baserow redis-cli -h 127.0.0.1 ping 2>&1`);
    if (/Using embedded baserow redis/.test(chose) && /NOAUTH/.test(cache.out)) break;
    await new Promise((r) => setTimeout(r, 5000));
  }
  assert.match(chose, /Using embedded baserow redis/,
    `baserow did not start its own cache:\n${chose.split("\n").filter((l) => /redis/i.test(l)).slice(-15).join("\n")}`);
  assert.match(cache.out, /NOAUTH/,
    `baserow's own cache does not answer with its password challenge inside the container:\n${cache.out}`);
  assert.doesNotMatch(chose, /WRONGPASS|NOPERM/,
    `baserow was refused by its cache:\n${chose.split("\n").filter((l) => /WRONGPASS|NOPERM/.test(l)).slice(-15).join("\n")}`);

  // Helper: wait for the mesh to write a consumer's bound file with an `as`, and parse it.
  async function waitForBinding(path: string): Promise<{ as: string; provision: string }> {
    let raw = "";
    const until = Date.now() + 90_000;
    while (Date.now() < until) {
      const got = await on(NODE, `cat ${path} 2>/dev/null`);
      if (got.ok && /"as"/.test(got.out)) { raw = got.out; break; }
      await new Promise((r) => setTimeout(r, 3000));
    }
    assert.match(raw, /"as"/, `the mesh never wrote a binding with a login to ${path}:\n${raw}`);
    return JSON.parse(raw) as { as: string; provision: string };
  }
});