init commit

app/services/notifications/__init__.py

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+"""Notifications service module"""
+
+from app.services.notifications.notification_service import NotificationService
+
+__all__ = ["NotificationService"]

app/services/notifications/notification_service.py

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+"""Notification service"""
+
+from typing import Optional
+from sqlalchemy.orm import Session
+from app.db.models import Family
+
+
+class NotificationService:
+    """Service for managing notifications"""
+
+    def __init__(self, session: Session):
+        self.session = session
+
+    def should_notify(self, family: Family, notification_type: str) -> bool:
+        """Check if notification should be sent based on family settings"""
+        if family.notification_level == "none":
+            return False
+        elif family.notification_level == "important":
+            return notification_type in ["budget_exceeded", "goal_completed"]
+        else:  # all
+            return True
+
+    def format_transaction_notification(
+        self, user_name: str, amount: float, category: str, account: str
+    ) -> str:
+        """Format transaction notification message"""
+        return (
+            f"💰 {user_name} добавил запись:\n"
+            f"Сумма: {amount}₽\n"
+            f"Категория: {category}\n"
+            f"Счет: {account}"
+        )
+
+    def format_budget_warning(
+        self, budget_name: str, spent: float, limit: float, percent: float
+    ) -> str:
+        """Format budget warning message"""
+        return (
+            f"⚠️ Внимание по бюджету!\n"
+            f"Бюджет: {budget_name}\n"
+            f"Потрачено: {spent}₽ из {limit}₽\n"
+            f"Превышено на: {percent:.1f}%"
+        )
+
+    def format_goal_progress(
+        self, goal_name: str, current: float, target: float, percent: float
+    ) -> str:
+        """Format goal progress message"""
+        return (
+            f"🎯 Прогресс цели: {goal_name}\n"
+            f"Накоплено: {current}₽ из {target}₽\n"
+            f"Прогресс: {percent:.1f}%"
+        )
+
+    def format_goal_completed(self, goal_name: str) -> str:
+        """Format goal completion message"""
+        return f"✅ Цель достигнута! 🎉\n{goal_name}"