feat: export audience profiles by author ids

src/content/market/author-base-client.ts

@@ -0,0 +1,122 @@
+import type { MarketRecord } from "./types";
+
+interface FetchResponseLike {
+  json(): Promise<unknown>;
+  ok: boolean;
+}
+
+type FetchLike = (
+  input: string,
+  init?: RequestInit
+) => Promise<FetchResponseLike>;
+
+interface AuthorBaseClientOptions {
+  baseUrl?: string;
+  fetchImpl?: FetchLike;
+  timeoutMs?: number;
+}
+
+export function createAuthorBaseClient(options: AuthorBaseClientOptions = {}) {
+  const baseUrl = options.baseUrl ?? resolveBaseUrl();
+  const fetchImpl = options.fetchImpl ?? defaultFetch;
+  const timeoutMs = options.timeoutMs ?? 8000;
+
+  return {
+    async loadAuthorBaseInfo(authorId: string): Promise<MarketRecord> {
+      const controller = new AbortController();
+      const timeoutId = setTimeout(() => controller.abort(), timeoutMs);
+
+      try {
+        const response = await fetchImpl(
+          buildAuthorBaseInfoUrl(authorId, baseUrl),
+          {
+            credentials: "include",
+            method: "GET",
+            signal: controller.signal
+          }
+        );
+
+        if (!response.ok) {
+          return buildFailedRecord(authorId, "request-failed");
+        }
+
+        return mapAuthorBaseInfoResponse(authorId, await response.json());
+      } catch (error) {
+        return buildFailedRecord(
+          authorId,
+          error instanceof Error && error.name === "AbortError"
+            ? "timeout"
+            : "request-failed"
+        );
+      } finally {
+        clearTimeout(timeoutId);
+      }
+    }
+  };
+}
+
+export function buildAuthorBaseInfoUrl(
+  authorId: string,
+  baseUrl: string
+): string {
+  const url = new URL("/gw/api/author/get_author_base_info", baseUrl);
+  url.searchParams.set("o_author_id", authorId);
+  url.searchParams.set("platform_source", "1");
+  url.searchParams.set("platform_channel", "1");
+  url.searchParams.set("recommend", "true");
+  url.searchParams.set("need_sec_uid", "true");
+  url.searchParams.set("need_linkage_info", "true");
+  return url.toString();
+}
+
+export function mapAuthorBaseInfoResponse(
+  authorId: string,
+  payload: unknown
+): MarketRecord {
+  if (!isRecord(payload)) {
+    return buildFailedRecord(authorId, "bad-response");
+  }
+
+  const authorName = readString(payload.nick_name);
+  if (!authorName) {
+    return buildFailedRecord(authorId, "missing-rate");
+  }
+
+  return {
+    authorId,
+    authorName,
+    status: "success"
+  };
+}
+
+function buildFailedRecord(
+  authorId: string,
+  failureReason: MarketRecord["failureReason"]
+): MarketRecord {
+  return {
+    authorId,
+    authorName: "",
+    failureReason,
+    status: "failed"
+  };
+}
+
+function readString(value: unknown): string | null {
+  return typeof value === "string" && value.trim() ? value.trim() : null;
+}
+
+function resolveBaseUrl(): string {
+  if (typeof location !== "undefined" && location.origin) {
+    return location.origin;
+  }
+
+  return "https://xingtu.cn";
+}
+
+async function defaultFetch(input: string, init?: RequestInit) {
+  return fetch(input, init);
+}
+
+function isRecord(value: unknown): value is Record<string, unknown> {
+  return typeof value === "object" && value !== null;
+}