/**
 * POST /api/rank-tracking/check — trigger a rank check for a brand.
 * Body: { brandId }
 */

import { NextResponse } from "next/server";
import { getCurrentUser } from "@/lib/auth";
import { prisma } from "@/lib/prisma";
import { logMemory } from "@/lib/services/client-memory";
import { checkBrand } from "@/lib/services/rank-check";

export const dynamic = "force-dynamic";
export const maxDuration = 120;

export async function POST(req: Request) {
  const user = await getCurrentUser();
  if (!user) return NextResponse.json({ error: "Unauthorized" }, { status: 401 });

  const body = await req.json().catch(() => null) as { brandId?: string } | null;
  if (!body?.brandId) return NextResponse.json({ error: "brandId required" }, { status: 400 });

  const brand = await prisma.brand.findUnique({
    where: { id: body.brandId },
    include: { organization: { include: { memberships: true } } },
  });
  if (!brand) return NextResponse.json({ error: "Brand not found" }, { status: 404 });
  if (!brand.organization.memberships.some((m) => m.userId === user.id)) {
    return NextResponse.json({ error: "Access denied" }, { status: 403 });
  }

  const summary = await checkBrand(body.brandId);
  logMemory({ brandId: body.brandId, category: "rank_check", action: "generated", summary: `Rank check: ${summary.checked} keywords, ${summary.improved} improved, ${summary.declined} declined`, aiContext: `Rank check: ${summary.improved} up, ${summary.declined} down of ${summary.checked} keywords` });
  return NextResponse.json(summary);
}
