From f9909108653bc077cd2a7869b751e58d5ed31ea7 Mon Sep 17 00:00:00 2001
From: primetime43 <12754111+primetime43@users.noreply.github.com>
Date: Mon, 18 May 2026 20:13:14 -0400
Subject: [PATCH] Make rate-limit header parsing null-safe

Use ParseOrNull helpers for X-RateLimit-Remaining and X-RateLimit-Reset-After header values and make the TimeSpan conversion null-safe. This prevents exceptions when rate-limit headers are missing or malformed and keeps resetAfterDelay nullable while preserving existing rate-limit logic.
---
 DiscordChatExporter.Core/Discord/DiscordClient.cs | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/DiscordChatExporter.Core/Discord/DiscordClient.cs b/DiscordChatExporter.Core/Discord/DiscordClient.cs
index d49a73f1..d74ccd7b 100644
--- a/DiscordChatExporter.Core/Discord/DiscordClient.cs
+++ b/DiscordChatExporter.Core/Discord/DiscordClient.cs
@@ -856,12 +856,12 @@ public class DiscordClient(
                 {
                     var remainingRequestCount = response
                         .Headers.TryGetValue("X-RateLimit-Remaining")
-                        ?.Pipe(s => int.Parse(s, CultureInfo.InvariantCulture));
+                        ?.Pipe(s => int.ParseOrNull(s, CultureInfo.InvariantCulture));
 
                     var resetAfterDelay = response
                         .Headers.TryGetValue("X-RateLimit-Reset-After")
-                        ?.Pipe(s => double.Parse(s, CultureInfo.InvariantCulture))
-                        .Pipe(TimeSpan.FromSeconds);
+                        ?.Pipe(s => double.ParseOrNull(s, CultureInfo.InvariantCulture))
+                        ?.Pipe(TimeSpan.FromSeconds);
 
                     if (remainingRequestCount <= 0 && resetAfterDelay is not null)
                     {