feat(stats): add v1 immersion stats dashboard (#19)

src/anki-connect.test.ts

@@ -0,0 +1,50 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import { AnkiConnectClient } from './anki-connect';
+
+test('AnkiConnectClient disables keep-alive agents to avoid stale socket retries', () => {
+  const client = new AnkiConnectClient('http://127.0.0.1:8765') as unknown as {
+    client: {
+      defaults: {
+        httpAgent?: { options?: { keepAlive?: boolean } };
+        httpsAgent?: { options?: { keepAlive?: boolean } };
+      };
+    };
+  };
+
+  assert.equal(client.client.defaults.httpAgent?.options?.keepAlive, false);
+  assert.equal(client.client.defaults.httpsAgent?.options?.keepAlive, false);
+});
+
+test('AnkiConnectClient includes action name in retry logs', async () => {
+  const client = new AnkiConnectClient('http://127.0.0.1:8765') as unknown as {
+    client: { post: (url: string, body: unknown, options: unknown) => Promise<unknown> };
+    sleep: (ms: number) => Promise<void>;
+  };
+  let shouldFail = true;
+  client.client = {
+    post: async () => {
+      if (shouldFail) {
+        shouldFail = false;
+        const error = Object.assign(new Error('socket hang up'), { code: 'ECONNRESET' });
+        throw error;
+      }
+      return { data: { result: [], error: null } };
+    },
+  };
+  client.sleep = async () => undefined;
+
+  const originalInfo = console.info;
+  const messages: string[] = [];
+  try {
+    console.info = (...args: unknown[]) => {
+      messages.push(args.map((value) => String(value)).join(' '));
+    };
+
+    await (client as unknown as AnkiConnectClient).invoke('notesInfo', { notes: [1] });
+
+    assert.match(messages.join('\n'), /AnkiConnect notesInfo retry 1\/3 after 200ms delay/);
+  } finally {
+    console.info = originalInfo;
+  }
+});