Arnaud
c5a8f94b26
The general assistant had exactly one conversation per user forever (recipeId null on chat_messages) — no way to start fresh or organize by topic. Adds an ai_conversations table (title, timestamps) and a nullable conversationId FK on chat_messages; the assistant panel gets a conversations menu to create/switch/rename/delete, auto-titling a new conversation from its first question. Per-recipe chat is untouched — each recipe already has one natural thread, so multi-conversation support only applies to the homepage assistant. Pre-existing general messages (no conversationId) aren't migrated into the new model and won't appear in the conversation list. Requires migration 0042 to run against a live DB — not applied in this sandbox (no Docker here); run `pnpm db:migrate`. v0.43.0
73 lines
3.5 KiB
TypeScript
73 lines
3.5 KiB
TypeScript
import { NextRequest, NextResponse } from "next/server";
|
|
import { z } from "zod";
|
|
import { generateText } from "ai";
|
|
import { db, chatMessages, aiConversations, sql } from "@epicure/db";
|
|
import { requireSessionOrApiKey } from "@/lib/api-auth";
|
|
import { applyRateLimit } from "@/lib/rate-limit";
|
|
import { withAiQuota, resolveAiConfigOrError } from "@/lib/ai/ai-error";
|
|
import { getModelConfigForUseCase } from "@/lib/ai/resolve-user-key";
|
|
import { resolveModel } from "@/lib/ai/factory";
|
|
import { getUserPrivateBio, buildUserBioContext } from "@/lib/ai/user-bio";
|
|
|
|
const Schema = z.object({
|
|
question: z.string().min(1).max(500),
|
|
conversationId: z.string().uuid().optional(),
|
|
});
|
|
|
|
const LANG: Record<string, string> = { en: "English", fr: "French" };
|
|
|
|
export async function POST(req: NextRequest) {
|
|
const { session, response } = await requireSessionOrApiKey(req);
|
|
if (response) return response;
|
|
|
|
const body = await req.json() as unknown;
|
|
const parsed = Schema.safeParse(body);
|
|
if (!parsed.success) {
|
|
return NextResponse.json({ error: "Validation error" }, { status: 400 });
|
|
}
|
|
|
|
const limited = await applyRateLimit(`rl:ai:${session!.user.id}`, 30, 60);
|
|
if (limited) return limited;
|
|
|
|
const [configResult, privateBio] = await Promise.all([
|
|
resolveAiConfigOrError(() => getModelConfigForUseCase(session!.user.id, "text")),
|
|
getUserPrivateBio(session!.user.id),
|
|
]);
|
|
if (!configResult.ok) return configResult.response;
|
|
const aiConfig = configResult.data;
|
|
const model = resolveModel(aiConfig);
|
|
const bioContext = buildUserBioContext(privateBio);
|
|
const locale = (session!.user as { locale?: string }).locale ?? "en";
|
|
const lang = LANG[locale] ?? "English";
|
|
|
|
const result = await withAiQuota(session!.user.id, session!.user.tier as "free" | "pro", () =>
|
|
generateText({
|
|
model,
|
|
system: `You are Epicure, a helpful culinary assistant answering general cooking questions — not tied to any specific recipe (techniques, substitutions, timing, equipment, food safety, etc). If asked who you are or what model/AI you're built on, say you're Epicure — never name the underlying model or provider. If a question has nothing to do with cooking or food, politely redirect. Keep answers under 200 words. Respond in ${lang}.${bioContext}`,
|
|
prompt: parsed.data.question,
|
|
}), { skipQuota: aiConfig.isByok }
|
|
);
|
|
if (!result.ok) return result.response;
|
|
|
|
const { conversationId } = parsed.data;
|
|
|
|
void db.insert(chatMessages).values([
|
|
{ id: crypto.randomUUID(), userId: session!.user.id, recipeId: null, conversationId, role: "user", content: parsed.data.question },
|
|
{ id: crypto.randomUUID(), userId: session!.user.id, recipeId: null, conversationId, role: "assistant", content: result.data.text },
|
|
]).catch((err) => console.error("[cooking-chat] failed to persist chat history", err));
|
|
|
|
if (conversationId) {
|
|
// Bumps updatedAt (for the conversation list's sort order) and, only if
|
|
// this is the conversation's first message, auto-titles it from the
|
|
// opening question — so users aren't left staring at "Untitled" entries;
|
|
// they can still rename it later.
|
|
void db.execute(sql`
|
|
UPDATE ${aiConversations}
|
|
SET updated_at = now(), title = COALESCE(title, ${parsed.data.question.slice(0, 60)})
|
|
WHERE ${aiConversations.id} = ${conversationId} AND ${aiConversations.userId} = ${session!.user.id}
|
|
`).catch((err) => console.error("[cooking-chat] failed to touch conversation", err));
|
|
}
|
|
|
|
return NextResponse.json({ answer: result.data.text });
|
|
}
|