import Alpaca from "@alpacahq/alpaca-trade-api";

const alpaca = new Alpaca({
  keyId: process.env.ALPACA_API_KEY!,
  secretKey: process.env.ALPACA_SECRET_KEY!,
  baseUrl: process.env.ALPACA_BASE_URL || "https://paper-api.alpaca.markets",
  retryOnError: false,
});

export async function loader({ params }: { params: { ticker: string } }) {
  const ticker = params.ticker?.toUpperCase();
  if (!ticker) {
    return Response.json({ error: "Ticker is required" }, { status: 400 });
  }

  try {
    // Use latest trade instead of quote for real transaction price
    const trade = await alpaca.getLatestTrade(ticker);
    // trade has: Price, Size, Exchange, Timestamp, etc.
    const price = (trade as { Price?: number }).Price || 0;
    return Response.json({
      ticker,
      price,
      timestamp: (trade as { Timestamp?: string }).Timestamp,
    });
  } catch (error) {
    console.error("Alpaca trade error:", error);
    return Response.json({ error: "Failed to fetch trade" }, { status: 500 });
  }
}