feat(referral): add referral system with withdrawals

tgbot/routers/user/user_transactions.py

@@ -5,7 +5,7 @@ from aiogram import Router, Bot, F
 from aiogram.filters import StateFilter
 from aiogram.types import CallbackQuery, Message, PreCheckoutQuery
 
-from tgbot.database import Paymentsx, Refillx, Userx, Settingsx
+from tgbot.database import Paymentsx, ReferralTransactionx, Refillx, Userx, Settingsx
 from tgbot.keyboards.inline_user import refill_bill_finl, refill_method_finl
 from tgbot.services.api_cryptobot import CryptobotAPI
 from tgbot.services.api_lolzteam import LolzteamAPI
@@ -459,4 +459,26 @@ async def save_refill_success(
             """),
         )
 
+    referral_reward = await ReferralTransactionx().get_refill_reward(
+        f"refill:{pay_comment or pay_receipt}"
+    )
+
+    if referral_reward is not None:
+        try:
+            await bot.send_message(
+                referral_reward.user_id,
+                ded(f"""
+                    <b>🤝 Реферальное начисление</b>
+
+                    ▪️ Ваш реферал: <a href='tg://user?id={get_user.user_id}'>{get_user.user_name}</a>
+                    ▪️ Пополнение: <code>{pay_amount}₽</code>
+                    ▪️ Начислено: <code>{referral_reward.amount}₽</code>
+                """),
+            )
+        except Exception:
+            bot_logger.warning(
+                "Не удалось отправить уведомление о реферальном начислении",
+                exc_info=True,
+            )
+
     return response_success, pay_receipt