from ajaxdatatable.admin import AjaxDatatable
from django.contrib import admin
from django.db.models import F, Q
from django.contrib.admin import SimpleListFilter
from django.utils.translation import gettext_lazy as _
from apps.quiz.models import QuizParticipant, ParticipantAnswer
from apps.account.models import User
import datetime


class ParticipantAnswerInline(admin.StackedInline):
    model = ParticipantAnswer

    readonly_fields = (
        '_correct_answer', 'question', 'at_time', 'answer_timing',
    )

    def _correct_answer(self, obj):
        return obj.correct_answer

    def has_add_permission(self, request, obj):
        return False

    def has_delete_permission(self, request, obj=None):
        return False

    def get_queryset(self, request):
        return super().get_queryset(request).annotate(correct_answer=F('question__correct_answer'))




class UserEmailFilter(SimpleListFilter):
    title = _('User Email')
    parameter_name = 'user_email'

    def lookups(self, request, model_admin):
        users = User.objects.all()
        return [(user.email, user.email) for user in users]

    def queryset(self, request, queryset):
        if self.value():
            email = self.value().replace('%40', '@')
            return queryset.filter(user__email=email)
        return queryset


@admin.register(QuizParticipant)
class ParticipantAdmin(AjaxDatatable):
    inlines = [ParticipantAnswerInline]
    search_fields = ['user__username', 'user__fullname']
    list_display = ['quiz', 'user', 'started_at', 'ended_at', 'total_timing', 'question_score', 'timing_score',
                    'total_score']
    latest_by = 'started_at'
    list_filter = ['started_at', 'ended_at', 'quiz__status', UserEmailFilter]