# -*- coding: utf-8 -*-
#
# coding: utf-8
from django.contrib.auth.mixins import UserPassesTestMixin
from django.utils import timezone


__all__ = ["DatetimeSearchMixin", "PermissionsMixin"]

from rest_framework import permissions


class DatetimeSearchMixin:
    date_format = '%Y-%m-%d'
    date_from = date_to = None

    def get_date_range(self):
        date_from_s = self.request.GET.get('date_from')
        date_to_s = self.request.GET.get('date_to')

        if date_from_s:
            date_from = timezone.datetime.strptime(date_from_s, self.date_format)
            tz = timezone.get_current_timezone()
            self.date_from = tz.localize(date_from)
        else:
            self.date_from = timezone.now() - timezone.timedelta(7)

        if date_to_s:
            date_to = timezone.datetime.strptime(
                date_to_s + ' 23:59:59', self.date_format + ' %H:%M:%S'
            )
            self.date_to = date_to.replace(
                tzinfo=timezone.get_current_timezone()
            )
        else:
            self.date_to = timezone.now()

    def get(self, request, *args, **kwargs):
        self.get_date_range()
        return super().get(request, *args, **kwargs)


class PermissionsMixin(UserPassesTestMixin):
    permission_classes = [permissions.IsAuthenticated]

    def get_permissions(self):
        return self.permission_classes

    def test_func(self):
        permission_classes = self.get_permissions()
        for permission_class in permission_classes:
            if not permission_class().has_permission(self.request, self):
                return False
        return True