/**
 * Regression tests for Telegram status helpers
 * Covers runtime diagnostics lines and recent-event redaction/ring-buffer behavior
 */

import assert from "node:assert/strict";
import test from "node:test";

import {
  buildTelegramBridgeStatusLines,
  buildTelegramRuntimeEventLines,
  buildTelegramStatusBarText,
  clearTelegramStatusLineProviders,
  createTelegramBridgeStatusRuntime,
  createTelegramRuntimeDiagnosticsSnapshotScheduler,
  createTelegramRuntimeEventRecorder,
  createTelegramRuntimeLogScope,
  createTelegramStatusHtmlBuilder,
  createTelegramStatusSnapshot,
  createTelegramStatusRuntime,
  getTelegramStatusBarProcessingStatus,
  recordStructuredTelegramRuntimeEvent,
  recordTelegramRuntimeEvent,
  registerTelegramStatusLineProvider,
  type TelegramRuntimeEvent,
} from "../lib/status.ts";

test("Status helpers build runtime log scope and persisted snapshot projections", () => {
  const state = {
    busRole: "leader" as const,
    botThreadMode: "enabled" as const,
    botThreadModeUpdatedAtMs: 10,
    botThreadModeAction: "probe",
    instanceSlot: "A",
    instanceThreadName: "Axial",
    pollingActive: true,
    lockState: "active-here",
    pendingDispatch: true,
    compactionInProgress: false,
    activeToolExecutions: 1,
    pendingModelSwitch: false,
    queuedItems: [],
    busFollowers: [{ instanceId: "follower", lastHeartbeatMs: 5 }],
    topicTargets: [{ instanceId: "leader", status: "active" }],
    threadReservations: [{ slot: "B", reason: "startup" }],
    topicSyncObservations: [{ syncStatus: "open", observedAtMs: 9 }],
    syncState: { pairing: { status: "fresh" } },
    recentRuntimeEvents: [],
  };

  assert.deepEqual(
    createTelegramRuntimeLogScope({ state, instanceId: "instance-1" }),
    {
      instanceId: "instance-1",
      role: "leader",
      slot: "A",
      threadName: "Axial",
      lockState: "active-here",
    },
  );
  assert.deepEqual(createTelegramStatusSnapshot(state), {
    runtime: {
      busRole: "leader",
      botThreadMode: "enabled",
      botThreadModeUpdatedAtMs: 10,
      botThreadModeAction: "probe",
      instanceSlot: "A",
      instanceThreadName: "Axial",
      pollingActive: true,
      lockState: "active-here",
    },
    liveRoster: {
      busFollowers: [{ instanceId: "follower", lastHeartbeatMs: 5 }],
      topicTargets: [{ instanceId: "leader", status: "active" }],
      reservations: [{ slot: "B", reason: "startup" }],
      syncObservations: [{ syncStatus: "open", observedAtMs: 9 }],
    },
    diagnostics: {
      pendingDispatch: true,
      compactionInProgress: false,
      activeToolExecutions: 1,
      pendingModelSwitch: false,
      syncState: { pairing: { status: "fresh" } },
      threadReconciliation: undefined,
      recentRuntimeEvents: [],
    },
  });
});

test("Status runtime diagnostics scheduler coalesces snapshot persists", async () => {
  let scheduled: (() => void) | undefined;
  let persistCount = 0;
  const errors: unknown[] = [];
  const schedule = createTelegramRuntimeDiagnosticsSnapshotScheduler({
    persistSnapshot: async () => {
      persistCount += 1;
    },
    recordError: (error) => errors.push(error),
    setTimer(callback) {
      scheduled = callback as () => void;
      return { unref() {} } as ReturnType<typeof setTimeout>;
    },
  });

  schedule();
  schedule();
  scheduled?.();
  await Promise.resolve();

  assert.equal(persistCount, 1);
  assert.deepEqual(errors, []);
});

const statusBarTheme = {
  fg: (token: string, text: string) => `<${token}>${text}</${token}>`,
};

function plainStatusText(text: string): string {
  return text.replace(/<\/?[a-z]+>/g, "");
}

function escapeRegExp(text: string): string {
  return text.replace(/[.*+?^${}()|[\]\\]/g, "\\$&");
}

test("Status bar text keeps the label, state color and queue for every connection state", () => {
  const base = {
    hasBotToken: true,
    pollingActive: true,
    paired: true,
    compactionInProgress: false,
    processing: false,
    queuedStatus: "",
  };
  const cases: Array<{
    state: Partial<Parameters<typeof buildTelegramStatusBarText>[1]>;
    label: string;
    token: string;
    word: string;
    queued?: string;
  }> = [
    { state: { hasBotToken: false, pollingActive: false, paired: false }, label: "telegram", token: "muted", word: "not configured" },
    { state: { processing: true, queuedStatus: " +1" }, label: "telegram", token: "warning", word: "active", queued: " +1" },
    { state: { processing: true, processingStatus: "dispatching", queuedStatus: " +1" }, label: "telegram", token: "warning", word: "active", queued: " +1" },
    { state: { processing: true, processingStatus: "active" }, label: "telegram", token: "warning", word: "active" },
    { state: { compactionInProgress: true }, label: "telegram", token: "success", word: "connected" },
    { state: { compactionInProgress: true, processing: true, processingStatus: "active" }, label: "telegram", token: "warning", word: "active" },
    { state: { pollingActive: false, instanceThreadName: "Aurora", processing: true, processingStatus: "queued", queuedStatus: " +2" }, label: "telegram", token: "muted", word: "disconnected", queued: " +2" },
    { state: { pollingActive: false, busRole: "follower" }, label: "telegram", token: "success", word: "follower" },
    { state: { pollingActive: false, busRole: "follower", instanceThreadName: "Amber", processing: true, processingStatus: "active" }, label: "Amber", token: "warning", word: "active" },
    { state: { pollingActive: false, busRole: "follower", busLifecyclePhase: "electing" }, label: "telegram", token: "warning", word: "electing" },
    { state: { pollingActive: false, busLifecyclePhase: "electing" }, label: "telegram", token: "warning", word: "electing" },
    { state: { pollingActive: false, busRole: "follower", instanceThreadName: "Follower" }, label: "telegram", token: "success", word: "follower" },
    { state: { pollingActive: false, busRole: "follower", instanceThreadName: "Lname" }, label: "Lname", token: "success", word: "follower" },
    { state: { pollingActive: false, busRole: "follower", instanceSlot: "O", instanceThreadName: "extensions Follower" }, label: "extensions Follower", token: "success", word: "follower" },
    { state: { pollingActive: false, busRole: "follower", instanceSlot: "O", instanceThreadName: "Oname" }, label: "Oname", token: "success", word: "follower" },
    { state: { busRole: "leader" }, label: "telegram", token: "success", word: "leader" },
    { state: { busRole: "leader", instanceThreadName: "🌙 A-identity" }, label: "🌙 A-identity", token: "success", word: "leader" },
    { state: { paired: false, processing: true, processingStatus: "queued", queuedStatus: " +1" }, label: "telegram", token: "warning", word: "awaiting pairing", queued: " +1" },
  ];
  for (const { state, label, token, word, queued } of cases) {
    const text = buildTelegramStatusBarText(statusBarTheme, { ...base, ...state });
    const expected = new RegExp(
      `^<accent>${escapeRegExp(label)}</accent> <${token}>\\S+ ${word}</${token}>${queued ? `<success>${escapeRegExp(queued)}</success>` : ""}`,
    );
    assert.match(text, expected, JSON.stringify(state));
  }
  assert.match(
    buildTelegramStatusBarText(statusBarTheme, {
      ...base,
      error: "typing failed",
    }),
    /^<accent>telegram<\/accent> <error>\S+ error<\/error> <muted>typing failed<\/muted>$/,
  );
});

test("Status bar shows bot, message counters and last activity only while the bridge is up", () => {
  const lastAtMs = new Date(2026, 9, 1, 14, 32).getTime();
  const connected = {
    hasBotToken: true,
    pollingActive: true,
    paired: true,
    compactionInProgress: false,
    processing: false,
    queuedStatus: "",
    botUsername: "demo_bot",
    traffic: { received: 12, sent: 11, lastAtMs },
  };
  const up = plainStatusText(buildTelegramStatusBarText(statusBarTheme, connected));
  assert.match(up, /connected/);
  assert.match(up, /@demo_bot/);
  assert.match(up, /12 \S*11/);
  assert.match(up, /14:32/);

  const withoutActivity = plainStatusText(
    buildTelegramStatusBarText(statusBarTheme, {
      ...connected,
      traffic: { received: 0, sent: 0 },
    }),
  );
  assert.match(withoutActivity, /0 \S*0/);
  assert.doesNotMatch(withoutActivity, /\d\d:\d\d/);

  const working = plainStatusText(
    buildTelegramStatusBarText(statusBarTheme, {
      ...connected,
      processing: true,
      processingStatus: "active",
    }),
  );
  assert.match(working, /active/);
  assert.match(working, /@demo_bot/);
  assert.match(working, /12 \S*11/);

  const offline = plainStatusText(
    buildTelegramStatusBarText(statusBarTheme, { ...connected, pollingActive: false }),
  );
  assert.doesNotMatch(offline, /@demo_bot|14:32/);
  assert.match(offline, /disconnected/);
});

test("Status bar tells the operator how to leave a non-working state", () => {
  const base = {
    hasBotToken: true,
    pollingActive: false,
    paired: true,
    compactionInProgress: false,
    processing: false,
    queuedStatus: "",
  };
  assert.match(
    plainStatusText(buildTelegramStatusBarText(statusBarTheme, { ...base, hasBotToken: false, paired: false })),
    /\/telegram-setup/,
  );
  const pairing = plainStatusText(
    buildTelegramStatusBarText(statusBarTheme, { ...base, paired: false, botUsername: "demo_bot" }),
  );
  assert.match(pairing, /\/start/);
  assert.match(pairing, /@demo_bot/);
  assert.match(
    plainStatusText(buildTelegramStatusBarText(statusBarTheme, base)),
    /\/telegram-connect/,
  );
});

test("Status bar follows the host symbol preset and falls back without one", () => {
  const state = {
    hasBotToken: true,
    pollingActive: true,
    paired: true,
    compactionInProgress: false,
    processing: false,
    queuedStatus: "",
    botUsername: "demo_bot",
    traffic: { received: 3, sent: 2, lastAtMs: new Date(2026, 9, 1, 9, 5).getTime() },
  };
  const ascii = plainStatusText(
    buildTelegramStatusBarText(
      {
        ...statusBarTheme,
        status: { enabled: "[x]" },
        sep: { dot: " - " },
        icon: { input: "in:", output: "out:", time: "t:" },
      },
      state,
    ),
  );
  assert.equal(ascii, "telegram [x] connected - @demo_bot - in:3 out:2 - t: 09:05");
  const fallback = plainStatusText(buildTelegramStatusBarText(statusBarTheme, state));
  assert.match(fallback, /^telegram \S+ connected · @demo_bot · \S*3 \S*2 · \S+ 09:05$/u);
});

test("Status runtime updates the status bar and exposes bridge lines", () => {
  const events: string[] = [];
  const ctx = {
    ui: {
      theme: {
        fg: (token: string, text: string) => `<${token}>${text}</${token}>`,
      },
      setStatus: (key: string, text: string) => {
        events.push(`${key}:${text}`);
      },
    },
  };
  const runtime = createTelegramStatusRuntime({
    getStatusBarState: (_ctx, error) => ({
      hasBotToken: true,
      pollingActive: true,
      paired: true,
      compactionInProgress: false,
      processing: false,
      queuedStatus: "",
      error,
    }),
    getBridgeStatusLineState: () => ({
      botUsername: "demo_bot",
      allowedUserId: 7,
      lockState: "active here",
      pollingActive: true,
      lastUpdateId: 10,
      pendingDispatch: false,
      compactionInProgress: false,
      activeToolExecutions: 0,
      pendingModelSwitch: false,
      queuedItems: [],
      recentRuntimeEvents: [],
    }),
  });
  runtime.updateStatus(ctx, "demo error");
  assert.match(
    events[0],
    /^telegram:<accent>telegram<\/accent> <error>\S+ error<\/error> <muted>demo error<\/muted>$/,
  );
  assert.deepEqual(runtime.getStatusLines().slice(0, 3), [
    "connection:",
    "- bot: @demo_bot",
    "- user: 7",
  ]);
});

test("Status lines expose thread reconciliation state", () => {
  const lines = buildTelegramBridgeStatusLines({
    botUsername: "demo_bot",
    allowedUserId: 7,
    pollingActive: true,
    lastUpdateId: 10,
    pendingDispatch: false,
    compactionInProgress: false,
    activeToolExecutions: 0,
    pendingModelSwitch: false,
    queuedItems: [],
    threadReconciliation: {
      phase: "cleanup-required",
      event: "cleanup-required",
      atMs: 1000,
      leaderEpoch: 3,
      pendingProvisionCount: 1,
      syncActionCount: 2,
      cleanupActionCount: 1,
    },
    recentRuntimeEvents: [],
  });

  assert.ok(lines.includes("reconciliation:"));
  assert.ok(
    lines.includes("- phase: cleanup-required event=cleanup-required epoch=3"),
  );
  assert.ok(lines.includes("- counts: pending=1, sync=2, cleanup=1"));
});

test("Status runtime propagates status update failures to safety wrappers", () => {
  const runtime = createTelegramStatusRuntime({
    getStatusBarState: () => ({
      hasBotToken: true,
      pollingActive: true,
      paired: true,
      compactionInProgress: false,
      processing: false,
      queuedStatus: "",
    }),
    getBridgeStatusLineState: () => ({
      botUsername: undefined,
      allowedUserId: undefined,
      pollingActive: false,
      lastUpdateId: undefined,
      pendingDispatch: false,
      compactionInProgress: false,
      activeToolExecutions: 0,
      pendingModelSwitch: false,
      queuedItems: [],
      recentRuntimeEvents: [],
    }),
  });
  assert.throws(
    () =>
      runtime.updateStatus({
        ui: {
          theme: { fg: (_token: string, text: string) => text },
          setStatus: () => {
            throw new Error("ctx is stale after session reload");
          },
        },
      }),
    /stale after session/,
  );
});

test("Status bar processing labels prefer the most specific live state", () => {
  assert.equal(
    getTelegramStatusBarProcessingStatus({
      hasActiveTurn: true,
      hasPendingDispatch: true,
      hasPendingModelSwitch: true,
      activeToolExecutions: 1,
      queuedItems: 1,
    }),
    "model",
  );
  assert.equal(
    getTelegramStatusBarProcessingStatus({
      hasActiveTurn: true,
      hasPendingDispatch: false,
      hasPendingModelSwitch: false,
      activeToolExecutions: 1,
      queuedItems: 1,
    }),
    "active",
  );
  assert.equal(
    getTelegramStatusBarProcessingStatus({
      hasActiveTurn: false,
      hasPendingDispatch: false,
      hasPendingModelSwitch: false,
      activeToolExecutions: 1,
      queuedItems: 1,
    }),
    "active",
  );
  assert.equal(
    getTelegramStatusBarProcessingStatus({
      hasActiveTurn: false,
      hasPendingDispatch: true,
      hasPendingModelSwitch: false,
      activeToolExecutions: 0,
      queuedItems: 1,
    }),
    "dispatching",
  );
  assert.equal(
    getTelegramStatusBarProcessingStatus({
      hasActiveTurn: false,
      hasPendingDispatch: false,
      hasPendingModelSwitch: false,
      activeToolExecutions: 0,
      queuedItems: 1,
    }),
    "queued",
  );
});

test("Bridge status runtime stays active while tools run after queue changes", () => {
  const events: string[] = [];
  const runtime = createTelegramBridgeStatusRuntime({
    getConfig: () => ({
      botToken: "token",
      botUsername: "demo_bot",
      allowedUserId: 7,
    }),
    isPollingActive: () => true,
    getActiveSourceMessageIds: () => undefined,
    hasActiveTurn: () => false,
    hasDispatchPending: () => false,
    isCompactionInProgress: () => false,
    getActiveToolExecutions: () => 1,
    hasPendingModelSwitch: () => false,
    getQueuedItems: () => [],
    formatQueuedStatus: () => "",
    getRecentRuntimeEvents: () => [],
  });
  runtime.updateStatus({
    ui: {
      theme: {
        fg: (token: string, text: string) => `<${token}>${text}</${token}>`,
      },
      setStatus: (key: string, text: string) => {
        events.push(`${key}:${text}`);
      },
    },
  });
  assert.match(
    events[0],
    /^telegram:<accent>telegram<\/accent> <warning>\S+ active<\/warning>/,
  );
});

test("Bridge status runtime builds status state from live ports", () => {
  const events: string[] = [];
  const runtime = createTelegramBridgeStatusRuntime({
    getConfig: () => ({
      botToken: "token",
      botUsername: "demo_bot",
      allowedUserId: 7,
      lastUpdateId: 99,
    }),
    isPollingActive: () => true,
    getActiveSourceMessageIds: () => [1, 2],
    hasActiveTurn: () => false,
    hasDispatchPending: () => true,
    isCompactionInProgress: () => false,
    getActiveToolExecutions: () => 3,
    hasPendingModelSwitch: () => true,
    getQueuedItems: () => [{ queueLane: "control" as const }],
    formatQueuedStatus: () => " +1",
    getRecentRuntimeEvents: () => [
      { at: 1000, category: "api", message: "ok" },
    ],
    getRuntimeLockState: () => "active here",
  });
  runtime.updateStatus({
    ui: {
      theme: {
        fg: (token: string, text: string) => `<${token}>${text}</${token}>`,
      },
      setStatus: (key: string, text: string) => {
        events.push(`${key}:${text}`);
      },
    },
  });
  assert.match(
    events[0],
    /^telegram:<accent>telegram<\/accent> <warning>\S+ active<\/warning><success> \+1<\/success>/,
  );
  assert.deepEqual(runtime.getStatusLines(), [
    "connection:",
    "- bot: @demo_bot",
    "- user: 7",
    "- owner: active here",
    "",
    "health:",
    "- polling: running",
    "- state: pending dispatch",
    "- queued turns: 1 (control=1, priority=0, default=0)",
    "- active tools: 3",
    "- pending model switch: yes",
    "",
    "diagnostics:",
    "- state: ~/.pi/agent/tmp/telegram/state.json",
    "- logs: ~/.pi/agent/tmp/telegram/logs.jsonl",
    "- full dump: /telegram-status --debug",
  ]);
});

test("Bridge status lines render named-profile diagnostic paths", () => {
  const lines = buildTelegramBridgeStatusLines({
    activeProfileName: "work",
    botUsername: "work_bot",
    pollingActive: false,
    pendingDispatch: false,
    compactionInProgress: false,
    activeToolExecutions: 0,
    pendingModelSwitch: false,
    queuedItems: [],
    recentRuntimeEvents: [],
  });
  assert.ok(
    lines.includes("- state: ~/.pi/agent/tmp/telegram/state.work.json"),
  );
  assert.ok(
    lines.includes("- logs: ~/.pi/agent/tmp/telegram/logs.work.jsonl"),
  );
});

test("Bridge status lines distinguish unknown bot identity from missing config", () => {
  const base = {
    allowedUserId: 42,
    pollingActive: true,
    lastUpdateId: 100,
    pendingDispatch: false,
    compactionInProgress: false,
    activeToolExecutions: 0,
    pendingModelSwitch: false,
    queuedItems: [],
    recentRuntimeEvents: [],
  };
  assert.equal(
    buildTelegramBridgeStatusLines({ ...base, hasBotToken: true })[1],
    "- bot: unknown",
  );
  assert.equal(
    buildTelegramBridgeStatusLines({ ...base, hasBotToken: false })[1],
    "- bot: not configured",
  );
});

test("Bridge status lines include role and instance thread name", () => {
  const lines = buildTelegramBridgeStatusLines({
    botUsername: "demo_bot",
    allowedUserId: 42,
    busRole: "leader",
    instanceSlot: "A",
    instanceThreadName: "A-identity",
    pollingActive: true,
    lastUpdateId: 100,
    pendingDispatch: false,
    compactionInProgress: false,
    activeToolExecutions: 0,
    pendingModelSwitch: false,
    queuedItems: [],
    recentRuntimeEvents: [],
  });

  assert.deepEqual(lines.slice(0, 5), [
    "connection:",
    "- bot: @demo_bot",
    "- user: 42",
    "- role: leader",
    "- instance: A-identity",
  ]);
});

test("Bridge status lines include sync slice diagnostics", () => {
  const lines = buildTelegramBridgeStatusLines(
    {
      botUsername: "demo_bot",
      allowedUserId: 42,
      pollingActive: true,
      lastUpdateId: 100,
      pendingDispatch: false,
      compactionInProgress: false,
      activeToolExecutions: 0,
      pendingModelSwitch: false,
      queuedItems: [],
      syncState: {
        "topic-state": {
          status: "fresh",
          updatedAtMs: 2000,
          lastReconcileAction: "topic-lifecycle",
        },
        "transport-health": {
          status: "suspect",
          suspectAtMs: 3000,
          reason: "rate limited",
        },
      },
      recentRuntimeEvents: [],
    },
    { verbose: true },
  );
  assert.ok(lines.includes("sync:"));
  assert.ok(lines.includes("- topic-state: fresh reconcile=topic-lifecycle"));
  assert.ok(lines.includes("- transport-health: suspect reason=rate limited"));
});

test("Bridge status lines include bot thread capability diagnostics", () => {
  const lines = buildTelegramBridgeStatusLines(
    {
      botUsername: "demo_bot",
      allowedUserId: 42,
      botThreadMode: "disabled",
      botThreadModeAction: "thread-mode-unavailable",
      pollingActive: true,
      lastUpdateId: 100,
      pendingDispatch: false,
      compactionInProgress: false,
      activeToolExecutions: 0,
      pendingModelSwitch: false,
      queuedItems: [],
      recentRuntimeEvents: [],
    },
    { verbose: true },
  );
  assert.ok(
    lines.includes("- thread mode: disabled reconcile=thread-mode-unavailable"),
  );
});

test("Bridge status lines include topic binding diagnostics", () => {
  const lines = buildTelegramBridgeStatusLines(
    {
      botUsername: "demo_bot",
      allowedUserId: 42,
      pollingActive: true,
      lastUpdateId: 100,
      pendingDispatch: false,
      compactionInProgress: false,
      activeToolExecutions: 0,
      pendingModelSwitch: false,
      queuedItems: [],
      topicTargets: [
        {
          instanceId: "inst-a",
          status: "active",
          target: { chatId: 42, threadId: 10 },
          slot: "B",
          threadName: "Beacon",
          syncStatus: "open",
          lastSyncObservedAtMs: 1000,
          lastSyncProbeAtMs: 2000,
          lastReconcileAction: "leader-startup-probe",
        },
        {
          instanceId: "inst-a",
          status: "starting",
          target: { chatId: 42, threadId: 11 },
          slot: "C",
          threadName: "Cedar",
        },
        { instanceId: "inst-b", status: "offline", slot: "D" },
      ],
      threadReservations: [
        {
          instanceId: "old-leader",
          target: { chatId: 42, threadId: 9 },
          slot: "A",
          reason: "previous-process-still-probes-alive",
          lastReconcileAction: "leader-topic-previous-instance-still-live",
        },
      ],
      topicSyncObservations: [
        {
          instanceId: "closed-inst",
          target: { chatId: 42, threadId: 8 },
          slot: "D",
          syncStatus: "closed",
          observedAtMs: 3000,
          lastReconcileAction: "mark-stale",
        },
      ],
      recentRuntimeEvents: [],
    },
    { verbose: true },
  );
  assert.deepEqual(lines.slice(18, 21), [
    "topics:",
    "- active bindings: instances=1, targets=2",
    "- duplicate inst-a: 2 active threads Beacon target 42:10, Cedar target 42:11",
  ]);
  assert.ok(
    lines.includes(
      "- Beacon target 42:10 sync=open observed=1970-01-01T00:00:01.000Z probed=1970-01-01T00:00:02.000Z reconcile=leader-startup-probe",
    ),
  );
  assert.ok(lines.includes("- Cedar target 42:11"));
  assert.ok(
    lines.includes(
      "- reservation [A] target 42:9 reason=previous-process-still-probes-alive instance=old-leader reconcile=leader-topic-previous-instance-still-live",
    ),
  );
  assert.ok(
    lines.includes(
      "- sync [D] target 42:8 sync=closed observed=1970-01-01T00:00:03.000Z instance=closed-inst reconcile=mark-stale",
    ),
  );
});

test("Bridge status lines include bus follower diagnostics when present", () => {
  const lines = buildTelegramBridgeStatusLines(
    {
      botUsername: "demo_bot",
      allowedUserId: 42,
      pollingActive: true,
      lastUpdateId: 100,
      pendingDispatch: false,
      compactionInProgress: false,
      activeToolExecutions: 0,
      pendingModelSwitch: false,
      queuedItems: [],
      busNowMs: 20_000,
      busFollowers: [
        {
          instanceId: "inst-a",
          cwd: "/repo/a",
          lastHeartbeatMs: 18_600,
          target: { chatId: -1007, threadId: 42 },
          threadName: "Ember",
        },
        { instanceId: "inst-b", lastHeartbeatMs: 12_000 },
      ],
      recentRuntimeEvents: [],
    },
    { verbose: true },
  );
  assert.deepEqual(lines.slice(19, 24), [
    "bus:",
    "- followers: 2",
    "- inst-a: Ember heartbeat 1s ago target -1007:42 /repo/a",
    "- inst-b: heartbeat 8s ago",
    "",
  ]);
});

test("Bridge status lines include local bus diagnostics", () => {
  const lines = buildTelegramBridgeStatusLines(
    {
      botUsername: "demo_bot",
      allowedUserId: 42,
      pollingActive: false,
      pendingDispatch: false,
      compactionInProgress: false,
      activeToolExecutions: 0,
      pendingModelSwitch: false,
      queuedItems: [],
      localBus: {
        leaderSocketPath: "\\\\.\\pipe\\pi-telegram-demo-bus",
        leaderTransport: "pipe",
        followerSocketPath: "\\\\.\\pipe\\pi-telegram-demo-follower",
        followerTransport: "pipe",
        followerRegistered: true,
        followerTarget: { chatId: 42, threadId: 9 },
        followerThreadName: "Boreal",
      },
      recentRuntimeEvents: [],
    },
    { verbose: true },
  );
  assert.ok(lines.includes("local bus:"));
  assert.ok(lines.includes("- follower registered: yes Boreal target 42:9"));
  assert.ok(
    lines.includes(
      "- leader endpoint [pipe]: \\\\.\\pipe\\pi-telegram-demo-bus",
    ),
  );
  assert.ok(
    lines.includes(
      "- follower endpoint [pipe]: \\\\.\\pipe\\pi-telegram-demo-follower",
    ),
  );
});

test("Bridge status lines include queue lanes and recent runtime events", () => {
  const lines = buildTelegramBridgeStatusLines(
    {
      botUsername: "demo_bot",
      allowedUserId: 42,
      pollingActive: true,
      lastUpdateId: 100,
      activeSourceMessageIds: [7, 8],
      pendingDispatch: true,
      compactionInProgress: false,
      activeToolExecutions: 2,
      pendingModelSwitch: true,
      queuedItems: [
        { queueLane: "control" },
        { queueLane: "priority" },
        { queueLane: "default" },
        { queueLane: "default" },
      ],
      recentRuntimeEvents: [
        { at: 1, category: "api:sendMessage", message: "rate limited" },
      ],
    },
    { verbose: true },
  );
  assert.deepEqual(lines, [
    "connection:",
    "- bot: @demo_bot",
    "- allowed user: 42",
    "",
    "polling:",
    "- state: running",
    "- last update id: 100",
    "",
    "execution:",
    "- active turn: 7,8",
    "- pending dispatch: yes",
    "- compaction: idle",
    "- active tools: 2",
    "- pending model switch: yes",
    "",
    "queue:",
    "- queued turns: 4",
    "- lanes: control=1, priority=1, default=2",
    "",
    "recent runtime events:",
    "- summary: api:sendMessage=1",
    "- 1970-01-01T00:00:00.001Z api:sendMessage: rate limited",
  ]);
});

test("Status HTML builder binds active model lookup", () => {
  const model = { provider: "openai", id: "gpt-5", contextWindow: 1000 };
  const buildStatusHtml = createTelegramStatusHtmlBuilder({
    getActiveModel: () => model,
  });
  const html = buildStatusHtml({
    sessionManager: { getEntries: () => [] },
    getContextUsage: () => ({ percent: 0, contextWindow: undefined }),
    isIdle: () => true,
    modelRegistry: { isUsingOAuth: () => false },
  });
  assert.match(html, /Status.*idle/s);
  assert.match(html, /Context.*0\.0%\/1\.0k/s);
});

test("Status HTML builder appends Threaded Mode bus role to status row", () => {
  const buildStatusHtml = createTelegramStatusHtmlBuilder({
    getActiveModel: () => undefined,
    getBridgeStatusLineState: () => ({
      hasBotToken: true,
      botThreadMode: "enabled",
      busRole: "leader",
      instanceThreadName: "Dune",
      pollingActive: true,
      pendingDispatch: false,
      compactionInProgress: false,
      activeToolExecutions: 0,
      pendingModelSwitch: false,
      queuedItems: [],
      recentRuntimeEvents: [],
    }),
  });
  const html = buildStatusHtml({
    sessionManager: { getEntries: () => [] },
    getContextUsage: () => ({ percent: 0, contextWindow: 1000 }),
    isIdle: () => true,
    modelRegistry: { isUsingOAuth: () => false },
  });
  assert.match(html, /Status.*idle @leader/s);
  assert.doesNotMatch(html, /Telegram/s);
});

test("Status HTML builder includes extension-provided status lines", () => {
  clearTelegramStatusLineProviders();
  const unregisterCodex = registerTelegramStatusLineProvider(
    ({ activeModel }) =>
      activeModel?.contextWindow === 1000
        ? { label: "codex", value: "████ 23.7h" }
        : undefined,
    { id: "@scope/codex" },
  );
  const unregisterBroken = registerTelegramStatusLineProvider(
    () => {
      throw new Error("optional provider failed");
    },
    { id: "@scope/broken" },
  );
  try {
    const buildStatusHtml = createTelegramStatusHtmlBuilder({
      getActiveModel: () => ({ contextWindow: 1000 }),
    });
    const html = buildStatusHtml({
      sessionManager: { getEntries: () => [] },
      getContextUsage: () => ({ percent: 0, contextWindow: undefined }),
      isIdle: () => true,
      modelRegistry: { isUsingOAuth: () => false },
    });
    assert.match(html, /Context.*0\.0%\/1\.0k/s);
    assert.match(html, /Codex.*████ 23\.7h/s);
  } finally {
    unregisterCodex();
    unregisterBroken();
    clearTelegramStatusLineProviders();
  }
});

test("Status HTML builder leaves compaction lifecycle to Pi", () => {
  const buildStatusHtml = createTelegramStatusHtmlBuilder({
    getActiveModel: () => undefined,
    isCompactionInProgress: () => true,
  });
  const html = buildStatusHtml({
    sessionManager: { getEntries: () => [] },
    getContextUsage: () => ({ percent: 0, contextWindow: 1000 }),
    isIdle: () => true,
    modelRegistry: { isUsingOAuth: () => false },
  });
  assert.match(html, /Status.*idle/s);
  assert.doesNotMatch(html, /compacting/);
});

test("Runtime event lines render the recent-event ring newest first", () => {
  assert.deepEqual(buildTelegramRuntimeEventLines([]), [
    "recent runtime events: none",
  ]);
  assert.deepEqual(
    buildTelegramRuntimeEventLines([
      { at: 0, category: "poll", message: "started" },
      { at: 1000, category: "api:sendMessage", message: "rate limited" },
    ]),
    [
      "recent runtime events:",
      "- summary: api:sendMessage=1, poll=1",
      "- 1970-01-01T00:00:01.000Z api:sendMessage: rate limited",
      "- 1970-01-01T00:00:00.000Z poll: started",
    ],
  );
});

test("Structured runtime event recording redacts messages and details", () => {
  const events: TelegramRuntimeEvent[] = [];
  recordStructuredTelegramRuntimeEvent(
    events,
    {
      category: "api",
      error: new Error("token 123:abc failed"),
      details: { method: "sendMessage", token: "123:abc", retryable: true },
    },
    { botToken: "123:abc", maxEvents: 3, now: 1000 },
  );
  assert.deepEqual(events, [
    {
      at: 1000,
      category: "api",
      message: "token <redacted-token> failed",
      details: {
        method: "sendMessage",
        token: "<redacted-token>",
        retryable: true,
      },
    },
  ]);
  assert.deepEqual(buildTelegramRuntimeEventLines(events), [
    "recent runtime events:",
    "- summary: api:sendMessage=1",
    '- 1970-01-01T00:00:01.000Z api:sendMessage: token <redacted-token> failed (token="<redacted-token>", retryable=true)',
  ]);
});

test("Runtime event recording bounds messages and string details", () => {
  const events: TelegramRuntimeEvent[] = [];
  recordStructuredTelegramRuntimeEvent(
    events,
    {
      category: "handler",
      error: new Error("x".repeat(1200)),
      details: { output: "y".repeat(1200) },
    },
    { maxEvents: 3, now: 1000 },
  );

  assert.equal(events[0]?.message.length, 1023);
  assert.match(events[0]?.message ?? "", /truncated 200 chars/);
  assert.equal(String(events[0]?.details?.output).length, 1023);
  assert.match(String(events[0]?.details?.output), /truncated 200 chars/);
});

test("Runtime event recorder owns redacted bounded event state", () => {
  const recorder = createTelegramRuntimeEventRecorder({
    getBotToken: () => "123:abc",
    maxEvents: 1,
    now: () => 1000,
  });
  recorder.record("api", new Error("token 123:abc failed"), {
    method: "sendMessage",
  });
  recorder.record("poll", "ok");
  assert.deepEqual(recorder.getEvents(), [
    { at: 1000, category: "poll", message: "ok" },
  ]);
  recorder.clear();
  assert.deepEqual(recorder.getEvents(), []);
});

test("Runtime event recording redacts bot tokens and keeps a bounded ring", () => {
  const events: TelegramRuntimeEvent[] = [];
  recordTelegramRuntimeEvent(events, "one", new Error("token 123:abc failed"), {
    botToken: "123:abc",
    maxEvents: 3,
    now: 1,
  });
  assert.deepEqual(events, [
    { at: 1, category: "one", message: "token <redacted-token> failed" },
  ]);
  recordTelegramRuntimeEvent(events, "two", "plain", {
    botToken: "123:abc",
    maxEvents: 3,
    now: 2,
  });
  recordTelegramRuntimeEvent(events, "three", "last", {
    botToken: "123:abc",
    maxEvents: 2,
    now: 3,
  });
  assert.deepEqual(events, [
    { at: 2, category: "two", message: "plain" },
    { at: 3, category: "three", message: "last" },
  ]);
});