from django.urls import reverse
from rest_framework import serializers

from misc.views.generic_serializer import GenericSerializer, GenericSerializerField
from users.models import ConnectingUserToAccess


class ConnectingUserToAccessSerializer(GenericSerializer):
    """
    Отвечает за сериализацию данных модели ConnectingUserToAccessSerializer
    (табличное представление), оправляемых в ответе на запрос.
    """

    readonly_field = ['id_field', 'user_field',  'user_access_field']
    mandatory_fields = ['id_field', 'user_field', 'user_access_field']
    create_field = ['user_field', 'user_access_field', 'transfer_date_field', 'return_date_field', 'comment_field',]

    id_field = GenericSerializerField(
        model_field_name='id',
    )
    user_field = GenericSerializerField(
        model_field_name='user_id',
    )
    user_access_field = GenericSerializerField(
        model_field_name='user_access_id',
    )
    transfer_date_field = GenericSerializerField(
        model_field_name="transfer_date",
    )
    return_date_field = GenericSerializerField(
        model_field_name='return_date',
    )
    comment_field = GenericSerializerField(
        model_field_name='comment_field',
    )
    user_access_name_field = GenericSerializerField(
        model_field_name='user_access__name',
    )
    user_access_url_field = GenericSerializerField(
        model_field_name='user_access__url',
    )
    user_access_comment_field = GenericSerializerField(
        model_field_name='user_access__comment',
    )
    delete_btn_field = serializers.SerializerMethodField()

    fields_information = {
        'id_field': GenericSerializer.get_field_information(
            model_name='id',
            field_verbose='ID',
        ),
        'user_field' : GenericSerializer.get_field_information(
            model_name='user_id',
            field_verbose='Ответственный сотрудник по возврату данных',
        ),
        'user_access_field' : GenericSerializer.get_field_information(
            model_name='user_access_id',
            field_verbose='Доступ выданный сотруднику',
        ),
        'transfer_date_field' : GenericSerializer.get_field_information(
            model_name="transfer_dated",
            field_verbose='Дата передачи',
        ),
        'return_date_field' : GenericSerializer.get_field_information(
            model_name='return_date',
            field_verbose='Дата возврата',
        ),
        'comment_field' : GenericSerializer.get_field_information(
            model_name='comment',
            field_verbose='Комментарий',
        ),

        'user_access_name_field' : GenericSerializer.get_field_information(
            model_name='user_access__name',
            field_verbose='Название доступа',
        ),
        'user_access_url_field' : GenericSerializer.get_field_information(
            model_name='user_access__url',
            field_verbose='URL Адрес ресурса',
        ),
        'user_access_comment_field' : GenericSerializer.get_field_information(
            model_name='user_access__comment',
            field_verbose='Комментарий доступа',
        ),
        'delete_btn_field': GenericSerializer.get_field_information(),
    }

    class Meta:
        model = ConnectingUserToAccess
        fields = [
            'id_field',
            'user_field',
            'user_access_field',
            'transfer_date_field',
            'return_date_field',
            'comment_field',
            'user_access_name_field',
            'user_access_url_field',
            'user_access_comment_field',
            'delete_btn_field',
        ]

    def get_delete_btn_field(self, obj) -> dict:
        """Определяет возвращаемое значение для поля кнопки удаления."""

        url = reverse('user_access_delete', args=[obj.id])

        return self.get_button_field(
            action=GenericSerializer.ButtonActions.DELETE,
            url=url,
            verbose='',
            icon='CloseCircle'
        )