import os
from functools import lru_cache

from adapters.postgres import connect
from adapters.postgres_query import PgReadingQueryRepository
from services.consumption_service import ConsumptionService

@lru_cache
def get_conn():
    return connect(os.getenv("DATABASE_URL", "postgresql://simugaz:simugaz@db/simugaz"))

## Repositories
def get_query_repo() -> PgReadingQueryRepository:
    return PgReadingQueryRepository(get_conn())


## Services
def get_consumption_service() -> ConsumptionService:
    return ConsumptionService(get_query_repo())


## Adapters