import { NextResponse } from "next/server";
import { createAssessment, listAssessments, saveAssessment } from "@/lib/store";
import type { Assessment } from "@/lib/types";

export async function GET() {
  return NextResponse.json(await listAssessments());
}

export async function POST(req: Request) {
  const body = await req.json().catch(() => ({}));
  // An "import" payload carries a full candidate list; anything else is a fresh assessment.
  if (body?.import) {
    const src = body.import as Assessment;
    const created = await createAssessment({ ...src, candidates: src.candidates ?? [] });
    return NextResponse.json(created, { status: 201 });
  }
  return NextResponse.json(await createAssessment(body), { status: 201 });
}

export async function PUT(req: Request) {
  const a = (await req.json()) as Assessment;
  if (!a?.id) return NextResponse.json({ error: "Missing id" }, { status: 400 });
  return NextResponse.json(await saveAssessment(a));
}