From 9fbd866435cf2322a2c8ec5de06c1880095276aa Mon Sep 17 00:00:00 2001
From: William Valentin <william.valentin.info@gmail.com>
Date: Mon, 16 Feb 2026 23:45:21 -0800
Subject: [PATCH] fix(channels): handle LINE and Zalo outbound attachment
 references

---
 src/channels/line/adapter.ts | 13 +++++++++++++
 src/channels/zalo/adapter.ts | 13 +++++++++++++
 2 files changed, 26 insertions(+)

diff --git a/src/channels/line/adapter.ts b/src/channels/line/adapter.ts
index e0baed2..1cd1898 100644
--- a/src/channels/line/adapter.ts
+++ b/src/channels/line/adapter.ts
@@ -169,6 +169,19 @@ export class LineAdapter implements ChannelAdapter {
     } finally {
       await rm(tempDir, { recursive: true, force: true });
     }
+
+    if (message.attachments && message.attachments.length > 0) {
+      for (const attachment of message.attachments) {
+        if (attachment.url) {
+          const line = attachment.filename ? `${attachment.filename}: ${attachment.url}` : attachment.url;
+          await this.sendPush(peerId, line);
+          continue;
+        }
+        if (attachment.data) {
+          console.warn(`LINE: skipping attachment data (${attachment.mimeType}) — upload not implemented`);
+        }
+      }
+    }
   }
 
   async handleRequest(req: IncomingMessage, res: ServerResponse): Promise<void> {
diff --git a/src/channels/zalo/adapter.ts b/src/channels/zalo/adapter.ts
index 080be27..754781d 100644
--- a/src/channels/zalo/adapter.ts
+++ b/src/channels/zalo/adapter.ts
@@ -159,6 +159,19 @@ export class ZaloAdapter implements ChannelAdapter {
     } finally {
       await rm(tempDir, { recursive: true, force: true });
     }
+
+    if (message.attachments && message.attachments.length > 0) {
+      for (const attachment of message.attachments) {
+        if (attachment.url) {
+          const line = attachment.filename ? `${attachment.filename}: ${attachment.url}` : attachment.url;
+          await this.sendText(peerId, line);
+          continue;
+        }
+        if (attachment.data) {
+          console.warn(`Zalo: skipping attachment data (${attachment.mimeType}) — upload not implemented`);
+        }
+      }
+    }
   }
 
   async handleRequest(req: IncomingMessage, res: ServerResponse): Promise<void> {