feat: additional expenses

test.py

@@ -5,15 +5,14 @@ from sqlalchemy import select
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from backend.session import session_maker
-from schemas.statistics import GetProfitChartDataRequest
-from services.statistics import StatisticsService
+from services.statistics.profit_statistics import ProfitStatisticsService
 
 
 async def main():
     session: AsyncSession = session_maker()
 
     try:
-        service = StatisticsService(session)
+        service = ProfitStatisticsService(session)
         service.date_from = datetime.date(2020, 1, 20)
         service.date_to = datetime.date(2020, 2, 10)
         stmt = service._generate_date_range(["expenses"])