Add market watch and match hub workflows

server/tutorialMetrics.test.ts

@@ -0,0 +1,54 @@
+import { afterEach, describe, expect, it, vi } from "vitest";
+import { fetchTutorialMetrics, shouldRefreshTutorialMetrics } from "./tutorialMetrics";
+
+describe("shouldRefreshTutorialMetrics", () => {
+  it("returns false without a supported source", () => {
+    expect(shouldRefreshTutorialMetrics({ sourcePlatform: "site", platformVideoId: null })).toBe(false);
+  });
+
+  it("returns true when metrics are missing", () => {
+    expect(shouldRefreshTutorialMetrics({
+      sourcePlatform: "bilibili",
+      platformVideoId: "BV1test",
+      metricsFetchedAt: null,
+    })).toBe(true);
+  });
+
+  it("returns false for fresh cached metrics", () => {
+    expect(shouldRefreshTutorialMetrics({
+      sourcePlatform: "bilibili",
+      platformVideoId: "BV1test",
+      metricsFetchedAt: new Date(),
+      viewCount: 120,
+      commentCount: 8,
+    })).toBe(false);
+  });
+});
+
+describe("fetchTutorialMetrics", () => {
+  afterEach(() => {
+    vi.restoreAllMocks();
+  });
+
+  it("parses bilibili metrics payloads", async () => {
+    vi.stubGlobal("fetch", vi.fn().mockResolvedValue({
+      ok: true,
+      json: async () => ({
+        data: {
+          pic: "http://i0.hdslb.com/demo.jpg",
+          stat: {
+            view: 3210,
+            reply: 42,
+          },
+        },
+      }),
+    }));
+
+    const result = await fetchTutorialMetrics("bilibili", "BV1demo");
+    expect(result).toMatchObject({
+      viewCount: 3210,
+      commentCount: 42,
+      thumbnailUrl: "https://i0.hdslb.com/demo.jpg",
+    });
+  });
+});