优化

server/plugins/com.msgbyte.welcome/services/welcome.service.ts

@@ -0,0 +1,95 @@
+import { call, TcContext } from 'tailchat-server-sdk';
+import { TcService } from 'tailchat-server-sdk';
+
+/**
+ * 入群欢迎
+ *
+ * 加入群组时发送欢迎消息
+ */
+class WelcomeService extends TcService {
+  get serviceName() {
+    return 'plugin:com.msgbyte.welcome';
+  }
+
+  onInit() {
+    this.registerAfterActionHook('group.joinGroup', 'joinGroupCallback');
+
+    this.registerAction('joinGroupCallback', this.joinGroupCallback, {
+      params: {
+        groupId: 'string',
+      },
+      visibility: 'public',
+    });
+  }
+
+  async joinGroupCallback(
+    ctx: TcContext<{
+      groupId: string;
+    }>
+  ) {
+    const { groupId } = ctx.params;
+
+    const groupInfo = await call(ctx).getGroupInfo(groupId);
+
+    if (groupInfo.config && groupInfo.config['plugin:groupWelcomeText']) {
+      // 有欢迎词
+
+      const lobbyConverseId = await call(ctx).getGroupLobbyConverseId(groupId);
+
+      if (!lobbyConverseId) {
+        // 如果没有文本频道则跳过
+        return;
+      }
+
+      const [welcomeText, meta] = await parseGroupWelcomeText(
+        ctx,
+        groupInfo.config['plugin:groupWelcomeText']
+      );
+
+      await ctx.call(
+        'chat.message.sendMessage',
+        {
+          converseId: lobbyConverseId,
+          groupId: groupId,
+          content: welcomeText,
+          meta,
+        },
+        {
+          meta: {
+            ...ctx.meta,
+            userId: groupInfo.owner, // 以群组owner的名义
+          },
+        }
+      );
+    }
+  }
+}
+
+export default WelcomeService;
+
+async function parseGroupWelcomeText(
+  ctx: TcContext,
+  welcomeText: string
+): Promise<[string, {}]> {
+  const meta: Record<string, any> = {};
+  if (
+    welcomeText.includes('{nickname}') ||
+    welcomeText.includes('{@nickname}')
+  ) {
+    const memberInfo = await call(ctx).getUserInfo(ctx.meta.userId);
+    const nickname = memberInfo.nickname;
+    const userId = String(memberInfo._id);
+
+    welcomeText = welcomeText.replaceAll('{nickname}', nickname);
+
+    if (welcomeText.includes('{@nickname}')) {
+      welcomeText = welcomeText.replaceAll(
+        '{@nickname}',
+        `[at=${userId}]${nickname}[/at]`
+      );
+      meta.mentions = [String(userId)];
+    }
+  }
+
+  return [welcomeText, meta];
+}