From 0413c973e74f02e8dcc86b429adf5db719285757 Mon Sep 17 00:00:00 2001
From: G30 <50341825+silentoplayz@users.noreply.github.com>
Date: Sun, 14 Dec 2025 15:13:39 -0500
Subject: [PATCH] fix: add functional null safety checks and boolean casting to
 Chat.svelte (#19921)

* fix(chat): add functional null safety checks and boolean casting

* Update Chat.svelte
---
 src/lib/components/chat/Chat.svelte | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/src/lib/components/chat/Chat.svelte b/src/lib/components/chat/Chat.svelte
index 1d5abcb03..014b8436e 100644
--- a/src/lib/components/chat/Chat.svelte
+++ b/src/lib/components/chat/Chat.svelte
@@ -2211,14 +2211,17 @@
 			generating = true;
 			const [res, controller] = await generateMoACompletion(
 				localStorage.token,
-				message.model,
-				history.messages[message.parentId].content,
+				message.model ?? '',
+				message.parentId ? history.messages[message.parentId].content : '',
 				responses
 			);
 
 			if (res && res.ok && res.body && generating) {
-				generationController = controller;
-				const textStream = await createOpenAITextStream(res.body, $settings.splitLargeChunks);
+				generationController = controller as AbortController;
+				const textStream = await createOpenAITextStream(
+					res.body,
+					Boolean($settings?.splitLargeChunks ?? false)
+				);
 				for await (const update of textStream) {
 					const { value, done, sources, error, usage } = update;
 					if (error || done) {
@@ -2305,7 +2308,7 @@
 	};
 
 	const MAX_DRAFT_LENGTH = 5000;
-	let saveDraftTimeout = null;
+	let saveDraftTimeout: ReturnType<typeof setTimeout> | null = null;
 
 	const saveDraft = async (draft, chatId = null) => {
 		if (saveDraftTimeout) {