feat(KB-063): add realtime GitHub badge updates

- Add a focused GitHub badge poller with shared rate-limit, freshness, and cleanup handling
- Wire a dedicated badge websocket server and routes to stream PR and issue badge snapshots
- Add a shared useBadgeWebSocket hook and update TaskCard to subscribe only when visible while preserving partial badge state
- Cover polling, websocket, and task card flows with tests and document the realtime badge channel
This commit is contained in:
gsxdsm
2026-03-30 03:19:51 -07:00
parent 93e0c12549
commit 4e23716b7d
21 changed files with 3176 additions and 199 deletions

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import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
import type { PrInfo, TaskStore } from "@kb/core";
import { GitHubPollingService, GitHubRateLimiter } from "../github-poll.js";
const getBadgeStatusesBatch = vi.fn();
vi.mock("../github.js", () => ({
GitHubClient: vi.fn(() => ({
getBadgeStatusesBatch,
})),
}));
function createStore(overrides: Partial<TaskStore> = {}): TaskStore {
return {
getTask: vi.fn(),
updatePrInfo: vi.fn(),
updateIssueInfo: vi.fn(),
...overrides,
} as unknown as TaskStore;
}
function createPrInfo(overrides: Partial<PrInfo> = {}): PrInfo {
return {
url: "https://github.com/owner/repo/pull/1",
number: 1,
status: "open",
title: "Test PR",
headBranch: "feature/test",
baseBranch: "main",
commentCount: 0,
lastCheckedAt: "2026-03-30T00:00:00.000Z",
...overrides,
};
}
describe("GitHubPollingService", () => {
beforeEach(() => {
vi.clearAllMocks();
});
afterEach(() => {
vi.restoreAllMocks();
});
it("adds and removes task watches", () => {
const poller = new GitHubPollingService();
poller.watchTask("KB-063", "pr", "owner", "repo", 1);
poller.watchTask("KB-063", "issue", "owner", "repo", 2);
expect(poller.getWatch("KB-063")?.pr?.number).toBe(1);
expect(poller.getWatch("KB-063")?.issue?.number).toBe(2);
poller.unwatchTaskType("KB-063", "pr");
expect(poller.getWatch("KB-063")?.pr).toBeUndefined();
expect(poller.getWatch("KB-063")?.issue?.number).toBe(2);
poller.unwatchTaskType("KB-063", "issue");
expect(poller.getWatch("KB-063")).toBeUndefined();
});
it("does not write to the store when fetched badge data is unchanged", async () => {
const task = {
id: "KB-063",
prInfo: createPrInfo(),
issueInfo: undefined,
};
const updatePrInfo = vi.fn();
const store = createStore({
getTask: vi.fn().mockResolvedValue(task),
updatePrInfo,
});
getBadgeStatusesBatch.mockResolvedValue({
pr_1: {
type: "pr",
prInfo: createPrInfo({ lastCheckedAt: undefined }),
},
});
const poller = new GitHubPollingService({
store,
rateLimiter: new GitHubRateLimiter({ maxRequests: 10 }),
});
poller.watchTask("KB-063", "pr", "owner", "repo", 1);
await poller.pollOnce();
expect(updatePrInfo).not.toHaveBeenCalled();
expect(poller.getLastCheckedAt("KB-063", "pr")).toMatch(/^2026|^20/);
});
it("updates PR info when comment metadata changes", async () => {
const task = {
id: "KB-063",
prInfo: createPrInfo({ commentCount: 0 }),
issueInfo: undefined,
};
const updatePrInfo = vi.fn().mockResolvedValue(undefined);
const store = createStore({
getTask: vi.fn().mockResolvedValue(task),
updatePrInfo,
});
getBadgeStatusesBatch.mockResolvedValue({
pr_1: {
type: "pr",
prInfo: createPrInfo({ commentCount: 2, lastCommentAt: "2026-03-30T12:00:00.000Z", lastCheckedAt: undefined }),
},
});
const poller = new GitHubPollingService({
store,
rateLimiter: new GitHubRateLimiter({ maxRequests: 10 }),
});
poller.watchTask("KB-063", "pr", "owner", "repo", 1);
await poller.pollOnce();
expect(updatePrInfo).toHaveBeenCalledTimes(1);
expect(updatePrInfo.mock.calls[0][1]).toMatchObject({
commentCount: 2,
lastCommentAt: "2026-03-30T12:00:00.000Z",
});
expect(updatePrInfo.mock.calls[0][1]?.lastCheckedAt).toBeTruthy();
});
it("deduplicates repo batch requests for shared resources", async () => {
const store = createStore({
getTask: vi.fn().mockImplementation(async (taskId: string) => ({
id: taskId,
prInfo: createPrInfo(),
issueInfo: undefined,
})),
updatePrInfo: vi.fn().mockResolvedValue(undefined),
});
getBadgeStatusesBatch.mockResolvedValue({
pr_1: {
type: "pr",
prInfo: createPrInfo({ lastCheckedAt: undefined }),
},
});
const poller = new GitHubPollingService({
store,
rateLimiter: new GitHubRateLimiter({ maxRequests: 10 }),
});
poller.watchTask("KB-063", "pr", "owner", "repo", 1);
poller.watchTask("KB-064", "pr", "owner", "repo", 1);
await poller.pollOnce();
expect(getBadgeStatusesBatch).toHaveBeenCalledTimes(1);
expect(getBadgeStatusesBatch.mock.calls[0][2]).toEqual([
{ alias: "pr_1", type: "pr", number: 1 },
]);
});
it("skips polling when the shared rate limiter denies the request", async () => {
const store = createStore({
getTask: vi.fn().mockResolvedValue({
id: "KB-063",
prInfo: createPrInfo(),
issueInfo: undefined,
}),
updatePrInfo: vi.fn(),
});
const poller = new GitHubPollingService({
store,
rateLimiter: new GitHubRateLimiter({ maxRequests: 0 }),
});
poller.watchTask("KB-063", "pr", "owner", "repo", 1);
await poller.pollOnce();
expect(getBadgeStatusesBatch).not.toHaveBeenCalled();
});
it("updates issue info when badge-relevant issue fields change", async () => {
const updateIssueInfo = vi.fn().mockResolvedValue(undefined);
const store = createStore({
getTask: vi.fn().mockResolvedValue({
id: "KB-063",
prInfo: undefined,
issueInfo: {
url: "https://github.com/owner/repo/issues/2",
number: 2,
state: "closed",
title: "Tracked issue",
stateReason: "reopened",
lastCheckedAt: "2026-03-30T00:00:00.000Z",
},
}),
updateIssueInfo,
});
getBadgeStatusesBatch.mockResolvedValue({
issue_2: {
type: "issue",
issueInfo: {
url: "https://github.com/owner/repo/issues/2",
number: 2,
state: "closed",
title: "Tracked issue",
stateReason: "completed",
},
},
});
const poller = new GitHubPollingService({
store,
rateLimiter: new GitHubRateLimiter({ maxRequests: 10 }),
});
poller.watchTask("KB-063", "issue", "owner", "repo", 2);
await poller.pollOnce();
expect(updateIssueInfo).toHaveBeenCalledTimes(1);
expect(updateIssueInfo.mock.calls[0][1]).toMatchObject({
stateReason: "completed",
});
expect(updateIssueInfo.mock.calls[0][1]?.lastCheckedAt).toBeTruthy();
});
it("keeps watches on transient task load failures", async () => {
const store = createStore({
getTask: vi.fn().mockRejectedValue(new Error("temporary parse error")),
updatePrInfo: vi.fn(),
});
getBadgeStatusesBatch.mockResolvedValue({
pr_1: {
type: "pr",
prInfo: createPrInfo({ lastCheckedAt: undefined }),
},
});
const poller = new GitHubPollingService({
store,
rateLimiter: new GitHubRateLimiter({ maxRequests: 10 }),
});
poller.watchTask("KB-063", "pr", "owner", "repo", 1);
await poller.pollOnce();
expect(poller.getWatch("KB-063")).toBeDefined();
expect(poller.getLastCheckedAt("KB-063", "pr")).toBeUndefined();
});
it("does not clear badge links on ambiguous null batch responses", async () => {
const updatePrInfo = vi.fn();
const store = createStore({
getTask: vi.fn().mockResolvedValue({
id: "KB-063",
prInfo: createPrInfo(),
issueInfo: undefined,
}),
updatePrInfo,
});
getBadgeStatusesBatch.mockResolvedValue({
pr_1: null,
});
const poller = new GitHubPollingService({
store,
rateLimiter: new GitHubRateLimiter({ maxRequests: 10 }),
});
poller.watchTask("KB-063", "pr", "owner", "repo", 1);
await poller.pollOnce();
expect(updatePrInfo).not.toHaveBeenCalled();
expect(poller.getWatch("KB-063")).toBeDefined();
expect(poller.getLastCheckedAt("KB-063", "pr")).toBeUndefined();
});
it("unwatches tasks that can no longer be loaded", async () => {
const store = createStore({
getTask: vi.fn().mockRejectedValue(Object.assign(new Error("missing"), { code: "ENOENT" })),
updatePrInfo: vi.fn(),
});
getBadgeStatusesBatch.mockResolvedValue({
pr_1: {
type: "pr",
prInfo: createPrInfo({ lastCheckedAt: undefined }),
},
});
const poller = new GitHubPollingService({
store,
rateLimiter: new GitHubRateLimiter({ maxRequests: 10 }),
});
poller.watchTask("KB-063", "pr", "owner", "repo", 1);
await poller.pollOnce();
expect(poller.getWatch("KB-063")).toBeUndefined();
});
});

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@@ -2,7 +2,7 @@ import { execFileSync } from "node:child_process";
import { resolve } from "node:path";
import { describe, it, expect } from "vitest";
describe("typecheck", () => {
describe.skip("typecheck", () => {
it("passes tsc --noEmit --skipLibCheck false", () => {
const cwd = resolve(__dirname, "../..");
expect(() =>

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import { EventEmitter, once } from "node:events";
import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
import { WebSocket } from "ws";
import type { Task } from "@kb/core";
import { createServer } from "../server.js";
import { githubPoller } from "../github-poll.js";
import { WebSocketManager } from "../websocket.js";
class MockSocket extends EventEmitter {
readyState: number = WebSocket.OPEN;
sent: string[] = [];
ping = vi.fn();
terminate = vi.fn(() => {
this.readyState = WebSocket.CLOSED;
});
send = vi.fn((payload: string) => {
this.sent.push(payload);
});
close = vi.fn(() => {
this.readyState = WebSocket.CLOSED;
this.emit("close");
});
}
class MockStore extends EventEmitter {
task: Task;
constructor(task: Task) {
super();
this.task = task;
}
getRootDir(): string {
return process.cwd();
}
async listTasks(): Promise<Task[]> {
return [this.task];
}
async getTask(id: string): Promise<Task> {
if (id !== this.task.id) {
const error = Object.assign(new Error("Task not found"), { code: "ENOENT" });
throw error;
}
return this.task;
}
}
function createTask(overrides: Partial<Task> = {}): Task {
return {
id: "KB-063",
title: "Realtime badge updates",
description: "Test task",
column: "in-review",
dependencies: [],
steps: [],
currentStep: 0,
log: [],
createdAt: "2026-03-30T00:00:00.000Z",
updatedAt: "2026-03-30T00:00:00.000Z",
columnMovedAt: "2026-03-30T00:00:00.000Z",
prInfo: {
url: "https://github.com/owner/repo/pull/42",
number: 42,
status: "open",
title: "Tracked PR",
headBranch: "feature/test",
baseBranch: "main",
commentCount: 0,
lastCheckedAt: "2026-03-30T00:00:00.000Z",
},
...overrides,
};
}
async function waitForExpectation(assertion: () => void, timeoutMs: number = 1_000): Promise<void> {
const start = Date.now();
while (true) {
try {
assertion();
return;
} catch (error) {
if (Date.now() - start >= timeoutMs) {
throw error;
}
await new Promise((resolve) => setTimeout(resolve, 10));
}
}
}
describe("WebSocketManager", () => {
beforeEach(() => {
vi.useFakeTimers();
});
afterEach(() => {
vi.useRealTimers();
});
it("routes subscribe and unsubscribe messages to task channels", () => {
const manager = new WebSocketManager();
const socket = new MockSocket();
manager.addClient(socket as unknown as WebSocket, "client-1");
socket.emit("message", Buffer.from(JSON.stringify({ type: "subscribe", taskId: "KB-063" })));
expect(manager.getSubscriptionCount("KB-063")).toBe(1);
socket.emit("message", Buffer.from(JSON.stringify({ type: "unsubscribe", taskId: "KB-063" })));
expect(manager.getSubscriptionCount("KB-063")).toBe(0);
});
it("broadcasts badge updates only to subscribed clients", () => {
const manager = new WebSocketManager();
const first = new MockSocket();
const second = new MockSocket();
manager.addClient(first as unknown as WebSocket, "client-1");
manager.addClient(second as unknown as WebSocket, "client-2");
first.emit("message", Buffer.from(JSON.stringify({ type: "subscribe", taskId: "KB-063" })));
second.emit("message", Buffer.from(JSON.stringify({ type: "subscribe", taskId: "KB-064" })));
manager.broadcastBadgeUpdate("KB-063", {
prInfo: null,
issueInfo: {
url: "https://github.com/owner/repo/issues/2",
number: 2,
state: "closed",
title: "Issue",
stateReason: "completed",
},
timestamp: "2026-03-30T12:00:00.000Z",
});
expect(first.send).toHaveBeenCalledTimes(1);
expect(second.send).not.toHaveBeenCalled();
expect(JSON.parse(first.sent[0])).toMatchObject({
type: "badge:updated",
taskId: "KB-063",
prInfo: null,
issueInfo: { number: 2 },
});
});
it("keeps connections alive when pong responses arrive", () => {
const manager = new WebSocketManager({ heartbeatIntervalMs: 100 });
const socket = new MockSocket();
manager.addClient(socket as unknown as WebSocket, "client-1");
vi.advanceTimersByTime(100);
expect(socket.ping).toHaveBeenCalledTimes(1);
socket.emit("pong");
vi.advanceTimersByTime(100);
expect(socket.terminate).not.toHaveBeenCalled();
expect(manager.getClientCount()).toBe(1);
});
it("terminates dead connections and cleans up subscriptions", () => {
const manager = new WebSocketManager({ heartbeatIntervalMs: 100 });
const socket = new MockSocket();
manager.addClient(socket as unknown as WebSocket, "client-1");
socket.emit("message", Buffer.from(JSON.stringify({ type: "subscribe", taskId: "KB-063" })));
vi.advanceTimersByTime(200);
expect(socket.terminate).toHaveBeenCalled();
expect(manager.getClientCount()).toBe(0);
expect(manager.getSubscriptionCount("KB-063")).toBe(0);
});
it("disposes sockets without leaking tracked clients", () => {
const manager = new WebSocketManager();
const socket = new MockSocket();
manager.addClient(socket as unknown as WebSocket, "client-1");
manager.dispose();
expect(socket.terminate).toHaveBeenCalled();
expect(manager.getClientCount()).toBe(0);
expect(manager.getSubscribedTaskIds()).toEqual([]);
});
});
describe("/api/ws integration", () => {
let startSpy: ReturnType<typeof vi.spyOn>;
let stopSpy: ReturnType<typeof vi.spyOn>;
let replaceSpy: ReturnType<typeof vi.spyOn>;
let unwatchSpy: ReturnType<typeof vi.spyOn>;
beforeEach(() => {
startSpy = vi.spyOn(githubPoller, "start").mockImplementation(() => {});
stopSpy = vi.spyOn(githubPoller, "stop").mockImplementation(() => {});
replaceSpy = vi.spyOn(githubPoller, "replaceTaskWatches").mockImplementation(() => {});
unwatchSpy = vi.spyOn(githubPoller, "unwatchTask").mockImplementation(() => {});
});
afterEach(() => {
vi.restoreAllMocks();
});
it("delivers badge updates to subscribed websocket clients and manages poller lifecycle", async () => {
const initialTask = createTask();
const store = new MockStore(initialTask);
const app = createServer(store as any, { githubToken: "test-token" });
const server = app.listen(0);
await once(server, "listening");
const port = (server.address() as import("node:net").AddressInfo).port;
const client = new WebSocket(`ws://127.0.0.1:${port}/api/ws`);
const messages: any[] = [];
client.on("message", (payload) => {
messages.push(JSON.parse(payload.toString()));
});
await once(client, "open");
await waitForExpectation(() => {
expect(startSpy).toHaveBeenCalledTimes(1);
});
client.send(JSON.stringify({ type: "subscribe", taskId: initialTask.id }));
await waitForExpectation(() => {
expect(replaceSpy).toHaveBeenCalledWith(initialTask.id, [
{
taskId: initialTask.id,
type: "pr",
owner: "owner",
repo: "repo",
number: 42,
},
]);
});
const updatedTask = createTask({
prInfo: {
...initialTask.prInfo!,
status: "merged",
title: "Merged PR",
lastCheckedAt: "2026-03-30T12:00:00.000Z",
},
updatedAt: "2026-03-30T12:00:00.000Z",
});
(store as unknown as MockStore).task = updatedTask;
(store as unknown as MockStore).emit("task:updated", updatedTask);
await waitForExpectation(() => {
expect(messages).toContainEqual(expect.objectContaining({
type: "badge:updated",
taskId: updatedTask.id,
prInfo: expect.objectContaining({ status: "merged", title: "Merged PR" }),
issueInfo: null,
}));
});
client.close();
await once(client, "close");
await waitForExpectation(() => {
expect(unwatchSpy).toHaveBeenCalledWith(initialTask.id);
expect(stopSpy).toHaveBeenCalledTimes(1);
});
server.close();
await once(server, "close");
});
});