export const dynamic = "force-dynamic";
import { NextResponse } from "next/server";

const PULSE_REFRESH_TOKEN = "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJleHAiOjE4MDIwMjY5NDgsImlhdCI6MTc3MDQ5MDk0OCwidHlwZSI6InJlZnJlc2giLCJ1c2VyX2lkIjoxfQ.zPJJB7o9vtnfIBFl7rNygEEXd9h-5YZeAxRIvWcRlXY";
const PULSE_API = "https://api.digital-home.site";

async function getAccessToken(): Promise<string> {
  const res = await fetch(`${PULSE_API}/auth/refresh`, {
    method: "POST",
    headers: { "Content-Type": "application/json" },
    body: JSON.stringify({ refresh_token: PULSE_REFRESH_TOKEN }),
    signal: AbortSignal.timeout(5000),
  });
  const data = await res.json();
  if (!data.access_token) throw new Error("Failed to get token");
  return data.access_token;
}

export async function GET() {
  try {
    const token = await getAccessToken();
    
    const res = await fetch(`${PULSE_API}/finance/transactions?limit=200&type=expense`, {
      headers: { Authorization: `Bearer ${token}` },
      signal: AbortSignal.timeout(8000),
    });
    const txs = await res.json();
    
    // Группируем накопления по цели
    const groups: Record<string, number> = {};
    for (const t of txs) {
      if (t.category_emoji === "💎") {
        // Нормализуем название
        const desc = t.description as string;
        let key = "Другое";
        if (desc.toLowerCase().includes("квартир")) key = "🏠 Квартира";
        else if (desc.toLowerCase().includes("отпуск") || desc.toLowerCase().includes("путешеств")) key = "✈️ Отпуск";
        else if (desc.toLowerCase().includes("машин") || desc.toLowerCase().includes("авто")) key = "🚗 Машина";
        else key = desc;
        groups[key] = (groups[key] || 0) + (t.amount as number);
      }
    }
    
    const goals = Object.entries(groups)
      .map(([name, amount]) => ({ name, amount }))
      .sort((a, b) => b.amount - a.amount);
    
    const total = goals.reduce((s, g) => s + g.amount, 0);
    
    return NextResponse.json({ goals, total });
  } catch (e) {
    return NextResponse.json({ error: String(e), goals: [], total: 0 }, { status: 500 });
  }
}