chatbot-template/app/(chat)/actions.ts

53 lines
1.3 KiB
TypeScript

"use server";
import { generateText, type UIMessage } from "ai";
import { cookies } from "next/headers";
import type { VisibilityType } from "@/components/visibility-selector";
import { titlePrompt } from "@/lib/ai/prompts";
import { getTitleModel } from "@/lib/ai/providers";
import {
deleteMessagesByChatIdAfterTimestamp,
getMessageById,
updateChatVisibilityById,
} from "@/lib/db/queries";
import { getTextFromMessage } from "@/lib/utils";
export async function saveChatModelAsCookie(model: string) {
const cookieStore = await cookies();
cookieStore.set("chat-model", model);
}
export async function generateTitleFromUserMessage({
message,
}: {
message: UIMessage;
}) {
const { text } = await generateText({
model: getTitleModel(),
system: titlePrompt,
prompt: getTextFromMessage(message),
});
return text
.replace(/^[#*"\s]+/, "")
.replace(/["]+$/, "")
.trim();
}
export async function deleteTrailingMessages({ id }: { id: string }) {
const [message] = await getMessageById({ id });
await deleteMessagesByChatIdAfterTimestamp({
chatId: message.chatId,
timestamp: message.createdAt,
});
}
export async function updateChatVisibility({
chatId,
visibility,
}: {
chatId: string;
visibility: VisibilityType;
}) {
await updateChatVisibilityById({ chatId, visibility });
}