From 51cd189c034e83f356d6ba2ad9ca5b254f5f1729 Mon Sep 17 00:00:00 2001
From: Stanislav Mishchyshyn <stanislav.mishchyshyn@namecheap.com>
Date: Tue, 27 Feb 2024 20:22:54 +0200
Subject: [PATCH] feat: emit SeobotsGuardStreamError instead of plain error

---
 lib/errors.js                       |  3 +++
 lib/streams/seobots-guard-stream.js | 10 ++++++----
 2 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/lib/errors.js b/lib/errors.js
index 94d4fd3..e7a2a7e 100644
--- a/lib/errors.js
+++ b/lib/errors.js
@@ -10,5 +10,8 @@ errors.FragmentError = extendError('FragmentError', {
 errors.FragmentWarn = extendError('FragmentWarn', {
     parent: errors.TailorError
 });
+errors.SeobotsGuardStreamError = extendError('SeobotsGuardStreamError', {
+    parent: errors.TailorError
+});
 
 module.exports = Object.freeze(errors);
diff --git a/lib/streams/seobots-guard-stream.js b/lib/streams/seobots-guard-stream.js
index 9889daf..d24a1f3 100644
--- a/lib/streams/seobots-guard-stream.js
+++ b/lib/streams/seobots-guard-stream.js
@@ -3,6 +3,7 @@
 const stream = require('stream');
 const BotDetector = require('device-detector-js/dist/parsers/bot');
 const botDetector = new BotDetector();
+const errors = require('../errors');
 
 /**
  * The goals of this stream is to change behaviour of the Tailor when dealing with SEO/SM bots.
@@ -12,7 +13,7 @@ const botDetector = new BotDetector();
  *
  * @type {module.StringifierStream}
  */
-module.exports = class StringifierStream extends stream.Transform {
+module.exports = class SeobotStringifierStream extends stream.Transform {
     #response;
     #isBot = false;
     #fragmentsCounter = 0;
@@ -127,9 +128,10 @@ module.exports = class StringifierStream extends stream.Transform {
         if (!this.#erroredState) {
             this.emit(
                 'error',
-                new Error(
-                    'Fragment error while processing request from SEO/SM bot. See adjacent messages for real cause.'
-                )
+                new errors.SeobotsGuardStreamError({
+                    message:
+                        'Fragment error while processing request from SEO/SM bot. See adjacent messages for real cause.'
+                })
             );
         }