import time
import logging
import functools
from django.core.paginator import Paginator, EmptyPage, PageNotAnInteger
from django_middleware_global_request import get_request
from django_proxmox_mikrotik import settings


def measure_time(func):
    """Decorator, der die Ausführungszeit einer Funktion misst und mit logging.debug ausgibt."""

    @functools.wraps(func)
    def wrapper(*args, **kwargs):
        start_time = time.time()
        result = func(*args, **kwargs)
        end_time = time.time()
        execution_time = end_time - start_time
        logging.debug(f"Funktion '{func.__name__}' wurde in {execution_time:.4f} Sekunden ausgeführt")
        return result

    return wrapper


def paginator(queryset, page: int = 1, per_page: int = 18, request=None):
    request = request or get_request()
    per_page = request.GET.get('per_page',
                               request.POST.get('per_page', getattr(settings, 'PAGINATOR_PER_PAGE', per_page)))
    paginator = Paginator(queryset, per_page)
    page = request.GET.get('page', request.POST.get('page', page))
    try:
        return paginator.page(page)
    except PageNotAnInteger:
        return paginator.page(1)
    except EmptyPage:
        return paginator.page(paginator.num_pages)


class PaginatedModel:
    def __init__(self, model):
        self.model = model

    def paginate(self, domainfilter, page: int = 1, per_page: int = 18, request=None):
        queryset = self.model.objects.filter(domainfilter)
        return paginator(queryset, page, per_page, request)