feat(telegram): add metadata to sticker (#347)

Author: undefined-moe

adapters/telegram/src/bot.ts

@@ -160,16 +160,16 @@ export class TelegramBot<C extends Context = Context, T extends TelegramBot.Conf
     }
   }
 
-  async $getFileFromPath(filePath: string) {
+  async $getFileFromPath(filePath: string, extra?: Record<string, any>) {
     if (this.server) {
-      return { src: `${this.server}/${filePath}` }
+      return { ...extra, src: `${this.server}/${filePath}` }
     }
     let { type, data } = await this.$getFile(filePath)
     if (type === 'application/octet-stream') {
       type = (await FileType.fromBuffer(data))?.mime
     }
     const base64 = `data:${type};base64,` + Binary.toBase64(data)
-    return { src: base64 }
+    return { ...extra, src: base64 }
   }
 
   private async setAvatarUrl(user: Universal.User) {

adapters/telegram/src/utils.ts

@@ -252,7 +252,11 @@ export async function decodeMessage(
       if (file.file_path.endsWith('.tgs')) {
         throw new Error('tgs is not supported now')
       }
-      segments.push(h('img', await bot.$getFileFromPath(file.file_path)))
+      segments.push(h('img', await bot.$getFileFromPath(file.file_path, {
+        id: data.sticker.file_id,
+        uniqueId: data.sticker.file_unique_id,
+        setName: data.sticker.set_name,
+      })))
     } catch (e) {
       bot.logger.warn('get file error', e)
       segments.push(h('text', { content: `[${data.sticker.set_name || 'sticker'} ${data.sticker.emoji || ''}]` }))