from typing import Optional, Union

from django.contrib.auth.decorators import login_required
from django.contrib.auth.models import User
from django.db.models import QuerySet
from django.http import HttpRequest
from django.utils.decorators import method_decorator
from rest_framework import permissions
from rest_framework.decorators import permission_classes
from rest_framework.request import Request
from rest_framework.response import Response


from misc.to_int import safe_to_int
from misc.views.generic_api_single_view import GenericApiSingleView
from misc.views.generic_api_view import GenericApiView
from misc.views.generic_filters import GenericFilters
from misc.views.generic_responces import get_status_response
from misc.views.table_style import TableStyle
from crm_softphone.models import Trunk, TrunkLVProject
from partners.models import LVProject


@permission_classes((permissions.AllowAny,))
class TrunkLVProjectTableView(GenericApiView):
    """Определяет структуру и содержание ответа на запросы к данным таблицы LVProject."""

    table_name = 'TrunkLVProject'
    table_style = TableStyle.get_table_style(hide_multiple_table_add=True)

    class Filters(GenericFilters):
        pass

    FIELDS_FILTERS = [
        GenericApiView.get_filter(
            filter_name='id_field', field_name='id',
            filer_method=Filters.generic_int_equal_filter
        ),
        GenericApiView.get_filter(
            filter_name='trunks_field', field_name='trunks_id',
            filer_method=Filters.generic_int_equal_filter
        ),
    ]

    PERMISSIONS = {
        'create': 'partners.crm_partners_lvproject_add',
        'view': 'partners.crm_partners_lvproject_view',
        # 'edit': 'partners.crm_partners_lvproject_edit',
        'delete': 'partners.crm_partners_lvproject_delete',
    }

    def get_empty_item_prefilled_fields(self, context: dict) -> dict:
        """Возвращает список предзаполненных полей для пустого элемента."""

        trunks_field = context.get('trunks_field')
        prefilled_fields = {
            'trunks_field': trunks_field,
        }

        return prefilled_fields

    @classmethod
    def get_field_dict(cls, context: dict, user: User) -> dict:
        """Распаковывает ответ и возвращает словарь со значениями полей"""

        print(context)

        print(
            context.get('trunks_field'),
            context.get('lv_project_field'),

            TrunkLVProjectTableView.get_unpack_value(context.get('trunks_field')),
            TrunkLVProjectTableView.get_unpack_value(context.get('lv_project_field')),
        )

        trunks_id_field = TrunkLVProjectTableView.get_unpack_value(context.get('trunks_field'))
        trunks_id_field = safe_to_int(trunks_id_field, -1)
        trunks = Trunk.objects.filter(id=trunks_id_field).first()

        lv_project_id_field = TrunkLVProjectTableView.get_unpack_value(context.get('lv_project_field'))
        lv_project_id_field = safe_to_int(lv_project_id_field, -1)
        lv_project = LVProject.objects.filter(id=lv_project_id_field).first()


        data = {
            'lv_project': lv_project,
            'trunks': trunks
        }

        print(data)

        return data

    def get_queryset(self, context: dict, user: User) -> QuerySet:
        """Возвращает базовый (до фильтрации и пагинации) QuerySet для таблицы."""

        return TrunkLVProject.objects.all().select_related('lv_project')


@permission_classes((permissions.AllowAny,))
class TrunkLVProjectElementView(GenericApiSingleView):
    """Определяет структуру и содержание ответа на запросы к данным элемента LVProject."""

    table_name = 'TrunkLVProject'
    element_verbose = 'Проект LV'
    table_view_model = TrunkLVProjectTableView

    PERMISSIONS = {
        'create': 'partners.crm_partners_lvproject_add',
        'view': 'partners.crm_partners_lvproject_view',
        'edit': 'partners.crm_partners_lvproject_edit',
        'delete': 'partners.crm_partners_lvproject_delete',
    }

    def get_queryset(self, context: dict, user: User) -> QuerySet:
        """Возвращает базовый (до фильтрации и пагинации) QuerySet."""

        return TrunkLVProject.objects.all()