From cf01d7a54575d6a494cd0a07a623896f2cfe89f9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Carl-Gerhard=20Lindesva=CC=88rd?= <lindesvard@gmail.com>
Date: Thu, 20 Mar 2025 10:31:19 +0100
Subject: [PATCH] fix(session): negative duration

---
 packages/db/src/buffers/session-buffer.ts | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/packages/db/src/buffers/session-buffer.ts b/packages/db/src/buffers/session-buffer.ts
index 4b94b4fe..0fc221ad 100644
--- a/packages/db/src/buffers/session-buffer.ts
+++ b/packages/db/src/buffers/session-buffer.ts
@@ -55,6 +55,12 @@ export class SessionBuffer extends BaseBuffer {
       newSession.duration =
         new Date(newSession.ended_at).getTime() -
         new Date(newSession.created_at).getTime();
+      if (newSession.duration < 0) {
+        this.logger.warn('Session duration is negative', {
+          session: newSession,
+        });
+        newSession.duration = 0;
+      }
       newSession.properties = toDots({
         ...(event.properties || {}),
         ...(newSession.properties || {}),