feat: export audience profiles by author ids

tests/author-base-client.test.ts

@@ -0,0 +1,56 @@
+import { describe, expect, test, vi } from "vitest";
+
+import {
+  buildAuthorBaseInfoUrl,
+  createAuthorBaseClient,
+  mapAuthorBaseInfoResponse
+} from "../src/content/market/author-base-client";
+
+describe("author-base-client", () => {
+  test("builds Xingtu author base info url", () => {
+    expect(
+      buildAuthorBaseInfoUrl("6866044569306267651", "https://www.xingtu.cn")
+    ).toBe(
+      "https://www.xingtu.cn/gw/api/author/get_author_base_info?o_author_id=6866044569306267651&platform_source=1&platform_channel=1&recommend=true&need_sec_uid=true&need_linkage_info=true"
+    );
+  });
+
+  test("maps author nickname into a market record", () => {
+    expect(mapAuthorBaseInfoResponse("6866044569306267651", {
+      base_resp: { status_code: 0, status_message: "Success" },
+      nick_name: "小九儿"
+    })).toEqual({
+      authorId: "6866044569306267651",
+      authorName: "小九儿",
+      status: "success"
+    });
+  });
+
+  test("loads author base info from Xingtu", async () => {
+    const fetchImpl = vi.fn(async () => ({
+      json: async () => ({
+        base_resp: { status_code: 0, status_message: "Success" },
+        nick_name: "小九儿"
+      }),
+      ok: true
+    }));
+    const client = createAuthorBaseClient({
+      baseUrl: "https://www.xingtu.cn",
+      fetchImpl,
+      timeoutMs: 1000
+    });
+
+    await expect(client.loadAuthorBaseInfo("6866044569306267651")).resolves.toEqual({
+      authorId: "6866044569306267651",
+      authorName: "小九儿",
+      status: "success"
+    });
+    expect(fetchImpl).toHaveBeenCalledWith(
+      "https://www.xingtu.cn/gw/api/author/get_author_base_info?o_author_id=6866044569306267651&platform_source=1&platform_channel=1&recommend=true&need_sec_uid=true&need_linkage_info=true",
+      expect.objectContaining({
+        credentials: "include",
+        method: "GET"
+      })
+    );
+  });
+});