Added currentDate variable to Dynamic Prompt (#1648)

* Added ability to include the current date in the assistant dynamic prompt

* feat: rename tag to {{today}}

---------

Co-authored-by: Nathan Sarrazin <[email protected]>

src/lib/components/AssistantSettings.svelte

@@ -96,7 +96,7 @@
 		: false;
 
 	let tools = assistant?.tools ?? [];
-	const regex = /{{\s?(get|post|url)=(.*?)\s?}}/g;
+	const regex = /{{\s?(get|post|url|today)(=.*?)?\s?}}/g;
 
 	$: templateVariables = [...systemPrompt.matchAll(regex)];
 	$: selectedModel = models.find((m) => m.id === modelId);
@@ -565,7 +565,8 @@
 				<p class="mb-2 text-xs font-normal text-gray-500">
 					Allow the use of template variables {"{{get=https://example.com/path}}"}
 					to insert dynamic content into your prompt by making GET requests to specified URLs on each
-					inference. You can also send the user's message as the body of a POST request, using {"{{post=https://example.com/path}}"}
+					inference. You can also send the user's message as the body of a POST request, using {"{{post=https://example.com/path}}"}.
+					Use {"{{today}}"} to include the current date.
 				</p>
 			</label>
 

src/lib/server/textGeneration/assistant.ts

@@ -5,6 +5,14 @@ import type { Assistant } from "$lib/types/Assistant";
 import type { ObjectId } from "mongodb";
 
 export async function processPreprompt(preprompt: string, user_message: string | undefined) {
+	// Replace {{today}} with formatted date
+	const today = new Intl.DateTimeFormat("en-US", {
+		weekday: "long",
+		day: "numeric",
+		month: "long",
+		year: "numeric",
+	}).format(new Date());
+	preprompt = preprompt.replaceAll("{{today}}", today);
 	const requestRegex = /{{\s?(get|post|url)=(.*?)\s?}}/g;
 
 	for (const match of preprompt.matchAll(requestRegex)) {

src/routes/settings/(nav)/assistants/[assistantId]/+page.svelte

@@ -259,7 +259,7 @@
 		>
 			{#if assistant?.dynamicPrompt}
 				{#each prepromptTags as tag}
-					{#if tag.startsWith("{{") && tag.endsWith("}}") && (tag.includes("get=") || tag.includes("post=") || tag.includes("url="))}
+					{#if (tag.startsWith("{{") && tag.endsWith("}}") && (tag.includes("get=") || tag.includes("post=") || tag.includes("url="))) || tag.includes("today")}
 						{@const url = tag.match(/(?:get|post|url)=(.*?)}}/)?.[1] ?? ""}
 						<a
 							target="_blank"