From 13cb38aa7dea9e7e03a07145d45ac2a52b103712 Mon Sep 17 00:00:00 2001
From: Algorithm5838 <108630393+Algorithm5838@users.noreply.github.com>
Date: Mon, 20 Apr 2026 20:10:12 +0300
Subject: [PATCH] fix: autosave chat controls on change

---
 src/lib/components/chat/Chat.svelte | 40 +++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/src/lib/components/chat/Chat.svelte b/src/lib/components/chat/Chat.svelte
index 1468d6b349..b4c1f52def 100644
--- a/src/lib/components/chat/Chat.svelte
+++ b/src/lib/components/chat/Chat.svelte
@@ -175,6 +175,26 @@
 	let chatFiles = [];
 	let files = [];
 	let params = {};
+	let lastObservedParams = {};
+	let lastObservedChatFiles = [];
+	let controlsSaveTimer: ReturnType<typeof setTimeout> | null = null;
+
+	$: if (!equal(params, lastObservedParams) || !equal(chatFiles, lastObservedChatFiles)) {
+		lastObservedParams = structuredClone(params);
+		lastObservedChatFiles = structuredClone(chatFiles);
+		if (!loading && !$temporaryChatEnabled && $chatId) {
+			if (controlsSaveTimer !== null) {
+				clearTimeout(controlsSaveTimer);
+			}
+			controlsSaveTimer = setTimeout(() => {
+				controlsSaveTimer = null;
+				saveControlsHandler().catch((err) => {
+					console.error('[saveControlsHandler]', err);
+					toast.error($i18n.t('Failed to save chat controls'));
+				});
+			}, 400);
+		}
+	}
 
 	$: if (chatIdProp) {
 		navigateHandler();
@@ -187,6 +207,12 @@
 			updateLastReadAt($chatId);
 		}
 
+		if (controlsSaveTimer !== null) {
+			clearTimeout(controlsSaveTimer);
+			controlsSaveTimer = null;
+			await saveControlsHandler().catch((err) => console.error('[saveControlsHandler]', err));
+		}
+
 		loading = true;
 
 		prompt = '';
@@ -807,6 +833,11 @@
 
 		return () => {
 			try {
+				if (controlsSaveTimer !== null) {
+					clearTimeout(controlsSaveTimer);
+					controlsSaveTimer = null;
+					saveControlsHandler().catch((err) => console.error('[saveControlsHandler]', err));
+				}
 				if (chatIdProp && !$temporaryChatEnabled) {
 					updateLastReadAt(chatIdProp);
 				}
@@ -2717,6 +2748,15 @@
 		return _chatId;
 	};
 
+	const saveControlsHandler = async () => {
+		const _chatId = $chatId;
+		if (!_chatId || $temporaryChatEnabled || loading) return;
+		await updateChatById(localStorage.token, _chatId, {
+			params: params,
+			files: chatFiles
+		});
+	};
+
 	const saveChatHandler = async (_chatId, history) => {
 		if ($chatId == _chatId) {
 			if (!$temporaryChatEnabled) {