from django.db.models import Sum,Count
from django.utils import timezone
from Base.models import (
    ServiceList,
)
from Movement.models import (
    Calendar,
)

def metric():
    now = timezone.localtime(timezone.now())
    current_month = now.month
    current_year = now.year

    # Criamos um queryset base para evitar repetição de filtros
    base_queryset = Calendar.objects.filter(
        date__month=current_month,
        date__year=current_year
    )

    # Breakdown (Agrupado por profissional e serviço)
    services_breakdown = base_queryset.values(
        'professional__name',
        'service__name'
    ).annotate(
        quantidade_feitas=Count('id'),
        lucro_liquido=Sum('value_cash')
    ).order_by('professional__name', 'service__name')

    # Total geral de lucro no mês
    total_geral = base_queryset.aggregate(total=Sum('value_cash'))['total'] or 0

    return {
        'services': services_breakdown,
        'total': total_geral
    }