feat(mini-user): configurable WeChat mini share scenes in system settings

Add HQ group for default and per-page share title/desc/image; expose via client-config and wire all mini-user share entry points.

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/mini-user/src/lib/wechat-share.ts

@@ -1,21 +1,126 @@
 import Taro from '@tarojs/taro';
 import type { WechatShareData } from '@dukang/weixin-sdk';
 import { getWechatShareLink, isWechatBrowser, isMiniProgram } from '@dukang/weixin-sdk';
+import {
+  applyShareTitleTemplate,
+  DEFAULT_SHARE_DESC,
+  DEFAULT_SHARE_HINT,
+  DEFAULT_SHARE_TITLE,
+  resolveMiniShareRuntime,
+  type ClientRuntimeConfig,
+  type MiniShareRuntime,
+  type MiniShareSceneConfig,
+} from '@dukang/shared-types';
 import { toast } from './api';
 import { getBrandAssetsSync, loadBrandAssets } from './brand-assets';
+import { fetchClientConfig } from './pay-wechat';
 import { isWechatEnv, weixinSdk } from './weixin';
 
-export const DEFAULT_SHARE_TITLE = '你吃饭，我买单';
-export const DEFAULT_SHARE_DESC = '杜康好客 · 买美酒，享好礼，全城门店可用';
-export const WECHAT_SHARE_HINT = '请点击右上角 ··· 分享给好友';
+export type ShareScene =
+  | 'home'
+  | 'stores'
+  | 'storeDetail'
+  | 'benefit'
+  | 'mine'
+  | 'productDetail'
+  | 'orderDetail';
 
-export function getDefaultShareImageUrl(): string {
-  return getBrandAssetsSync().brandLogoUrl;
+export { DEFAULT_SHARE_TITLE, DEFAULT_SHARE_DESC };
+
+export const WECHAT_SHARE_HINT = DEFAULT_SHARE_HINT;
+
+const FALLBACK_SHARE: MiniShareRuntime = resolveMiniShareRuntime({});
+
+let shareCached: MiniShareRuntime | null = null;
+
+export function getShareRuntimeSync(): MiniShareRuntime {
+  return shareCached ?? FALLBACK_SHARE;
 }
 
-/** 预热分享默认图（来自系统设置） */
+export function applyShareFromClientConfig(config?: ClientRuntimeConfig | null) {
+  if (config?.share) {
+    shareCached = config.share;
+    return shareCached;
+  }
+  return getShareRuntimeSync();
+}
+
+export async function loadShareConfig(force = false): Promise<MiniShareRuntime> {
+  if (!force && shareCached) return shareCached;
+  try {
+    const cfg = await fetchClientConfig();
+    if (cfg?.share) {
+      shareCached = cfg.share;
+      return shareCached;
+    }
+  } catch {
+    /* ignore */
+  }
+  shareCached = FALLBACK_SHARE;
+  return shareCached;
+}
+
+export function getDefaultShareImageUrl(): string {
+  const share = getShareRuntimeSync();
+  return share.default.imageUrl || getBrandAssetsSync().brandLogoUrl;
+}
+
+export function getShareHint(): string {
+  return getShareRuntimeSync().hint || DEFAULT_SHARE_HINT;
+}
+
+/** 预热分享配置与品牌图 */
 export function prefetchShareBrandAssets() {
   void loadBrandAssets();
+  void loadShareConfig();
+}
+
+function sceneConfig(scene?: ShareScene): MiniShareSceneConfig {
+  const runtime = getShareRuntimeSync();
+  if (!scene) return runtime.default;
+  return runtime[scene] ?? runtime.default;
+}
+
+/**
+ * 组装页面分享：场景配置优先；空字段用 dynamic → 默认分享。
+ * orderDetail 标题支持 {productName}。
+ */
+export function buildSceneSharePayload(
+  scene: ShareScene,
+  options?: {
+    path?: string;
+    /** 业务动态标题（场景配置为空时使用） */
+    dynamicTitle?: string | null;
+    dynamicDesc?: string | null;
+    dynamicImageUrl?: string | null;
+    titleVars?: Record<string, string | undefined | null>;
+  },
+): PageSharePayload {
+  const def = getShareRuntimeSync().default;
+  const sc = sceneConfig(scene);
+  let title = (sc.title || '').trim();
+  if (title && options?.titleVars) {
+    const vars = options.titleVars;
+    const missingRequired = Object.entries(vars).some(
+      ([key, value]) => title.includes(`{${key}}`) && !(value != null && String(value).trim()),
+    );
+    title = missingRequired ? '' : applyShareTitleTemplate(title, vars);
+  }
+  if (!title) {
+    title = (options?.dynamicTitle || '').trim() || def.title;
+  }
+  const desc = (sc.desc || '').trim() || (options?.dynamicDesc || '').trim() || def.desc;
+  const imgUrl =
+    (sc.imageUrl || '').trim() ||
+    (options?.dynamicImageUrl || '').trim() ||
+    def.imageUrl ||
+    getDefaultShareImageUrl();
+  return {
+    title,
+    desc,
+    path: options?.path,
+    imgUrl,
+  };
 }
 
 export function buildDefaultShareData(
@@ -29,9 +134,10 @@ export function buildDefaultShareData(
       link = '';
     }
   }
+  const def = getShareRuntimeSync().default;
   return {
-    title: overrides?.title ?? DEFAULT_SHARE_TITLE,
-    desc: overrides?.desc ?? DEFAULT_SHARE_DESC,
+    title: overrides?.title ?? def.title,
+    desc: overrides?.desc ?? def.desc,
     link,
     imgUrl: overrides?.imgUrl ?? getDefaultShareImageUrl(),
   };
@@ -73,7 +179,7 @@ export async function handleShareButtonClick(
         /* ignore */
       }
     }
-    toast(WECHAT_SHARE_HINT);
+    toast(getShareHint());
     return { showGuide: false };
   }
 
@@ -94,7 +200,7 @@ export async function handleShareButtonClick(
     if (result.invoked) {
       return { showGuide: false };
     }
-    toast(WECHAT_SHARE_HINT);
+    toast(getShareHint());
     return { showGuide: true };
   } catch (e) {
     toast(e instanceof Error ? e.message : '分享配置失败，请刷新后重试');
@@ -104,9 +210,20 @@ export async function handleShareButtonClick(
 
 /** 供 useShareAppMessage 使用的标题/路径/图 */
 export function toWeappShareMessage(payload?: PageSharePayload) {
+  const def = getShareRuntimeSync().default;
   return {
-    title: payload?.title || DEFAULT_SHARE_TITLE,
+    title: payload?.title || def.title,
     path: payload?.path || '/pages/home/index',
     imageUrl: payload?.imgUrl || getDefaultShareImageUrl(),
   };
 }
+
+/** 供 useShareTimeline */
+export function toWeappShareTimeline(payload?: PageSharePayload, query = '') {
+  const def = getShareRuntimeSync().default;
+  return {
+    title: payload?.title || def.title,
+    query,
+    imageUrl: payload?.imgUrl || getDefaultShareImageUrl(),
+  };
+}