fix: 获取动态详情出现undefined (#271)

Fixes #271

lib/core/searcher.js

@@ -110,8 +110,12 @@ function parseDynamicCard(dynamic_detail_card) {
     obj.hasOfficialLottery = extension && extension.lott && true;
     /* 转发者的描述 纯文字内容 图片动态描述 后两个分别是视频动态的描述和视频本身的描述*/
     obj.description =
-        (item && (item.content || '' + item.description || ''))
-        || (cardToJson.dynamic || '' + cardToJson.desc || '')
+        (item && ((item.content || '') + (item.description || '')))
+        || (
+            (cardToJson.dynamic || '')
+            + (cardToJson.desc || '')
+            + (cardToJson.vest && cardToJson.vest.content || '')
+        )
         || '';
     /* 转发 */
     if (obj.type === 1) {

test/dynamic_card.test.js

@@ -4,7 +4,7 @@ const searcher = require("../lib/core/searcher");
 const util = require('./util');
 
 (async () => {
-    await util.par_run([0, 1, 2, 3, 4, 5], [
+    await util.par_run([0, 1, 2, 3, 4, 5, 6], [
         // 0
         async () => {
             let info = await bili_client.getOneDynamicByDyid("728424890210713624");
@@ -44,6 +44,12 @@ const util = require('./util');
             chats = await bili_client.getChat(card.rid_str, card.chat_type)
             assert.equal(chats.filter(it => it[0] === '六的月').length, 0)
         },
+        // 6
+        async () => {
+            const dy = await bili_client.getOneDynamicByDyid("774973685666676768");
+            const card = searcher.parseDynamicCard(dy)
+            assert.notEqual(card.description + "", undefined + "");
+        },
     ])
 
     console.log("dynamic_card.test ... ok!");