// Author: Simon-Pierre Boucher
// Contact: contact@spboucher.ai
// Project: chat.spboucher.ai

// Generation state resync — lets a client that lost its stream recover.

import { NextResponse, type NextRequest } from "next/server";
import { requireSession } from "@/lib/auth/guard";
import { generationState } from "@/lib/generate";
import { getMessage } from "@/lib/conversations";

export const runtime = "nodejs";

type Params = { params: Promise<{ id: string }> };

export async function GET(_req: NextRequest, { params }: Params) {
  const { unauthorized } = await requireSession();
  if (unauthorized) return unauthorized;
  const { id } = await params;
  const gen = generationState(id);
  if (!gen) return NextResponse.json({ error: "Generation not found." }, { status: 404 });
  const message = getMessage(gen.message_id);
  return NextResponse.json({ generation: gen, message });
}