import { prisma } from "./prisma";

export async function sendTelegramNotification(userId: string, aliciMail: string, sender: string, subject: string, extraInfo: string = "") {
  const user = await prisma.user.findUnique({
    where: { id: userId },
  });

  if (!user || !user.telegramId || !process.env.TELEGRAM_BOT_TOKEN) {
    console.warn(`[Telegram] Skipped for user ${userId}. Token or ChatId missing.`);
    return { status: "FAILED", error: "Missing token or chatId" };
  }

  const message = `🔔 *Yeni Mail Geldi!*\n\n📧 *Alıcı:* ${aliciMail}\n👤 *Gönderen:* ${sender}\n📝 *Konu:* ${subject}${extraInfo ? `\n\n💡 *Analiz:* ${extraInfo}` : ""}`;
  const telegramUrl = `https://api.telegram.org/bot${process.env.TELEGRAM_BOT_TOKEN}/sendMessage`;

  try {
    const res = await fetch(telegramUrl, {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify({
        chat_id: user.telegramId,
        text: message,
        parse_mode: "Markdown",
      }),
    });

    if (!res.ok) {
      const errorText = await res.text();
      console.error(`[Telegram] API Error: ${res.status} ${errorText}`);
      return { status: "FAILED", error: `API Error: ${res.status}` };
    }

    return { status: "SENT", error: null };
  } catch (err: any) {
    console.error(`[Telegram] Network Error: ${err.message}`);
    return { status: "FAILED", error: err.message };
  }
}