trace last message in chain ++

src/index.ts

@@ -20,6 +20,15 @@ import {
 export * from './config';
 import AragamiPlugin, { CacheKey, CacheTTL } from 'koishi-plugin-cache-aragami';
 
+function plainText(text: string) {
+  return segment
+    .parse(text)
+    .filter((s) => s.type === 'text')
+    .map((s) => s.data.content)
+    .join('')
+    .trim();
+}
+
 export class SelfOnline {
   @CacheKey()
   selfId: string;
@@ -37,7 +46,7 @@ export class LastMessage {
   fromSession(session: Session) {
     this.guildId = session.guildId;
     this.userId = session.userId;
-    this.content = session.content;
+    this.content = plainText(session.content);
     return this;
   }
 }
@@ -61,6 +70,9 @@ class Utility extends base {
 
   async saveLastMessage(session: Session) {
     const message = new LastMessage().fromSession(session);
+    if (!message.content) {
+      return;
+    }
     const previousSaving = await this.aragami.get(LastMessage, session.guildId);
     if (previousSaving && session.userId === previousSaving.userId) {
       message.content = previousSaving.content + '\n' + message.content;
@@ -142,15 +154,10 @@ export default class OrderPicker extends base {
     }
     const lastMessageContent = await this.utility.fetchLastMessage(session);
     if (!(await this.utility.isOnline(session.selfId))) return next();
-    let description = segment
-      .parse(session.content)
-      .filter((s) => s.type === 'text')
-      .map((s) => s.data.content)
-      .join('')
-      .trim();
-
-    if (!description) {
-      description = lastMessageContent || '';
+
+    let description = plainText(session.content);
+    if (lastMessageContent) {
+      description = lastMessageContent + '\n' + description;
     }
 
     await session.bot.sendPrivateMessage(