support url param handling (https://t3.0xgingi.xyz/chat?q=%s)

Author: 0xGingi

src/routes/chat/+layout.svelte

@@ -522,6 +522,20 @@
 			},
 		},
 	});
+
+	let hasAutoSubmitted = $state(false);
+
+	// Auto-submit when URL query parameter is present (only once)
+	$effect(() => {
+		const urlQuery = page.url.searchParams.get('q');
+		if (urlQuery && message.current && !isGenerating && mounted.current && !hasAutoSubmitted) {
+			hasAutoSubmitted = true;
+			// Small delay to ensure everything is ready
+			setTimeout(() => {
+				handleSubmit();
+			}, 100);
+		}
+	});
 	let selectedImages = $state<{ url: string; storage_id: string; fileName?: string }[]>([]);
 	let selectedDocuments = $state<
 		{

src/routes/chat/+page.svelte

@@ -9,6 +9,7 @@
 	import { scale } from 'svelte/transition';
 	import { useCachedQuery, api } from '$lib/cache/cached-query.svelte';
 	import { Provider } from '$lib/types';
+	import { page } from '$app/state';
 
 	const defaultSuggestions = [
 		'How does AI work?',
@@ -68,6 +69,14 @@
 	});
 
 	const prompt = usePrompt();
+
+	// Handle URL parameter for initial query
+	$effect(() => {
+		const urlQuery = page.url.searchParams.get('q');
+		if (urlQuery && prompt.current === '') {
+			prompt.current = decodeURIComponent(urlQuery);
+		}
+	});
 </script>
 
 <svelte:head>