import pdb

import requests
from django.views.generic import TemplateView
from rest_framework import views, generics
from rest_framework import viewsets
from rest_framework.response import Response
from rest_framework.views import APIView

from questions.models import Question
from trials.models import Test, SolvedTest
from trials.serializers import TestSerializer
from django.conf import settings
from django.shortcuts import render, redirect
from django import template
from django.http import HttpResponseRedirect, HttpResponse
from django.template import loader
from django.template.loader import render_to_string, get_template
from django.http import HttpRequest
import requests


def addTest(request):
    return render(request, 'createTest.html')


def is_visible(visible):
    if visible =="public":
        return True
    else:
        return False


def addQuestions(request, **kwargs):
    if request.POST:
        name = request.GET.get("name")
        visible = is_visible(request.GET.get("visible"))
        passing = request.GET.get("passing")
        category = request.GET.get("category")
        number_of_questions = request.GET.get("number_of_questions")
        user = request.user
        # k = dict(request.POST)["desc"]
        questions = []
        for i in range(0, int(number_of_questions)):
            description = dict(request.POST)["desc"][i]
            answer1 = {
                "description": dict(request.POST)["ans1"][i],
                "is_correct": False
            }
            answer2 = {
                "description": dict(request.POST)["ans2"][i],
                "is_correct": False
            }
            answer3 = {
                "description": dict(request.POST)["ans3"][i],
                "is_correct": False
            }
            answer4 = {
                "description": dict(request.POST)["ans4"][i],
                "is_correct": False
            }
            is_correct = dict(request.POST)["is_correct"][i]
            if is_correct == "1":
                answer1["is_correct"] = True
            if is_correct == "2":
                answer2["is_correct"] = True
            if is_correct == "3":
                answer3["is_correct"] = True
            if is_correct == "4":
                answer4["is_correct"] = True
            questions.append({
                "name": description,
                "answers": [
                    answer1,
                    answer2,
                    answer3,
                    answer4
                ]
            })
        Test.objects.create(name=name, passing_score=passing, category=category, questions=questions, user=user,
                            visible=visible)
        return redirect('home')
    return render(request, 'addQuestions.html')


class AddQuestionToExistingTest(TemplateView):
    template_name = settings.BASE_DIR + f"/templates/addQuestionToExistingTest.html"

    def post(self, request, *args, **kwargs):
        answers = []
        answer1 = {
            "description": dict(request.POST)["ans1"][0],
            "is_correct": False
        }
        answer2 = {
            "description": dict(request.POST)["ans2"][0],
            "is_correct": False
        }
        answer3 = {
            "description": dict(request.POST)["ans3"][0],
            "is_correct": False
        }
        answer4 = {
            "description": dict(request.POST)["ans4"][0],
            "is_correct": False
        }
        is_correct = dict(request.POST)["is_correct"][0]
        if is_correct == "1":
            answer1["is_correct"] = True
        if is_correct == "2":
            answer2["is_correct"] = True
        if is_correct == "3":
            answer3["is_correct"] = True
        if is_correct == "4":
            answer4["is_correct"] = True
        answers.append({
            "answers": [
                answer1,
                answer2,
                answer3,
                answer4
            ]
        })
        description = dict(request.POST)["desc"][0]
        Question.objects.addQuestionToExistingTest(name=description, answers=answers,
                                                   test=Test.objects.get(id=kwargs["test_id"]))
        return redirect(f'/tests/{kwargs["test_id"]}/edit')


class RemoveQuestionFromExistingTest(TemplateView):
    template_name = settings.BASE_DIR + f"/templates/removeQuestionFromExistingTest.html"

    def get_queryset(self):
        return Test.objects.all()

    def get_context_data(self, test_id, **kwargs):
        self.test_id = test_id
        context = super().get_context_data(**kwargs)
        context["test"] = self.get_queryset().filter(id=test_id).prefetch_related("questions__answers").first()
        return context

    def post(self, request, *args, **kwargs):
        Question.objects.get(id=request.POST["id"]).delete()
        return redirect(f'/tests/{kwargs["test_id"]}/edit')


def myTests(request):
    context = {}
    user = request.user.id
    context['tests'] = Test.objects.filter(created_by=user)
    return render(request, 'myTests.html', context)


def solvedTests(request):
    context = {}
    user_id = request.user.id
    solved_tests = SolvedTest.objects.filter(user__id=user_id)
    formatted_tests = list()
    for solved_test in solved_tests:
        formatted_tests.append({
            "name": solved_test.test.name_and_passing_score()["name"],
            "passing_score": solved_test.test.name_and_passing_score()["passing_score"],
            "score": solved_test.score,
            "max": solved_test.max,
            "percentage": solved_test.percentage
        })
    context['tests'] = formatted_tests
    return render(request, 'solvedTests.html', context)


def editTest(request):
    if request.POST:
        # TODO here
        # firstName = request.POST.get("firstName")
        # lastName = request.POST.get("lastName")
        #
        # u = request.user
        # u.first_name = firstName
        # u.last_name = lastName
        # u.save()
        return redirect('myTests')
    return render(request, 'editTest.html')


class EditTestTemplateView(TemplateView):
    template_name = settings.BASE_DIR + f"/templates/editTest.html"

    def get_queryset(self):
        return Test.objects.all()

    def get_context_data(self, test_id, **kwargs):
        self.test_id = test_id
        context = super().get_context_data(**kwargs)
        context["test"] = self.get_queryset().filter(id=test_id).prefetch_related("questions__answers").first()
        if context["test"].created_by.email != self.request.user.email:
            return render(context, "canNotEditTest.html")
        return context

    def post(self, request, *args, **kwargs):
        return redirect(f'/tests/question/{request.POST["id"]}/edit?test_id={kwargs["test_id"]}')


class EditQuestionTemplateView(TemplateView):
    template_name = settings.BASE_DIR + f"/templates/editQuestion.html"

    def get_queryset(self):
        return Question.objects.all()

    def get_context_data(self, question_id, **kwargs):
        context = super().get_context_data(**kwargs)
        context["question"] = self.get_queryset().filter(id=question_id).prefetch_related("answers").first()
        return context

    def post(self, request, *args, **kwargs):
        question_id = kwargs["question_id"]
        test = request.GET.get("test_id")
        answers = []
        answer1 = {
            "description": dict(request.POST)["ans1"][0],
            "is_correct": False
        }
        answer2 = {
            "description": dict(request.POST)["ans2"][0],
            "is_correct": False
        }
        answer3 = {
            "description": dict(request.POST)["ans3"][0],
            "is_correct": False
        }
        answer4 = {
            "description": dict(request.POST)["ans4"][0],
            "is_correct": False
        }
        is_correct = dict(request.POST)["is_correct"][0]
        if is_correct == "1":
            answer1["is_correct"] = True
        if is_correct == "2":
            answer2["is_correct"] = True
        if is_correct == "3":
            answer3["is_correct"] = True
        if is_correct == "4":
            answer4["is_correct"] = True
        answers.append({
            "answers": [
                answer1,
                answer2,
                answer3,
                answer4
            ]
        })
        description = dict(request.POST)["desc"][0]
        Question.objects.EditQuestion(question_id=question_id, name=description, answers=answers)
        return redirect(f'/tests/{test}/edit')


def deleteTest(request, test_id):
    Test.objects.filter(id=test_id).delete()
    return redirect('myTests')


def editName(request, test_id):
    new_visible = request.GET["visible"]
    if new_visible == "public":
        new_visible = True
    else:
        new_visible = False
    test = Test.objects.get(id=test_id)
    test.visible = new_visible
    test.save()
    return redirect(f'/tests/{test_id}/edit')

def editVisible(request, test_id):
    new_name = request.GET["name"]
    test = Test.objects.get(id=test_id)
    test.name = new_name
    test.save()
    return redirect(f'/tests/{test_id}/edit')


class TestModelViewSet(viewsets.ModelViewSet):
    queryset = Test.objects.all()
    serializer_class = TestSerializer


class TestTemplateView(TemplateView):
    PASSED = "Zaliczony"
    FAILED = "Niezaliczony"
    UNKNOWN = "nieznany"

    PASSED = {
        True: PASSED,
        False: FAILED
    }

    permission_classes = []
    template_name = settings.BASE_DIR + f"/templates/generic_test.html"
    test_id = None

    def get_queryset(self):
        return Test.objects.all()

    def get_context_data(self, test_id, **kwargs):
        self.test_id = test_id
        context = super().get_context_data(**kwargs)
        context["test"] = self.get_queryset().filter(id=test_id).prefetch_related("questions__answers").first()
        return context

    def get_score(self, test: Test, answers):
        return test.get_score(answers)

    def get_maxscore(self, test: Test, answers):
        return test.get_maxscore(answers)

    def formatted_responses(self, unformatted_json):
        formatted_response = list()
        for question, answer in unformatted_json.items():
            formatted_response.append(
                {
                    "question": question,
                    "answer": answer
                }
            )
        return formatted_response

    def post(self, request, *args, **kwargs):
        test = Test.objects.get(id=kwargs.get("test_id"))
        score = self.get_score(test, self.formatted_responses(request.POST))
        max = self.get_maxscore(test, self.formatted_responses(request.POST))
        status = score >= test.passing_score
        context = {
            "status": self.PASSED.get(status, self.UNKNOWN),
            "points": score,
            "max": max,
            "passing": test.passing_score,
            "percentage": int(score / max * 100)
        }
        SolvedTest.objects.create(
            score=score,
            max=max,
            percentage=int(score / max * 100),
            user=request.user,
            test=test
        )
        template_name = "result.html"
        template = get_template(template_name)
        return HttpResponse(template.render(context))


def testView(request):
    permission_classes = []
    template_name = settings.BASE_DIR + f"/templates/generic_test.html"
    context = {}

    if request.POST:
        form = RegistrationForm(request.POST)
        if form.is_valid():
            User.objects.create(
                email=form.cleaned_data["email"],
                first_name=form.cleaned_data["first_name"],
                last_name=form.cleaned_data["last_name"],
                password=form.cleaned_data["password1"]
            )
            return redirect('register_success')
        else:
            context['registration_form'] = form
    else:
        context["test"] = Test.objects.all().filter(id=test_id).prefetch_related("questions__answers").first()
    return render(request, 'generic_test.html', context)


class TestValidateAPIView(views.APIView):
    PASSED = "passed"
    FAILED = "failed"
    UNKNOWN = "unknown"

    PASSED = {
        True: PASSED,
        False: FAILED
    }

    def get_score(self, test: Test, answers):
        return test.get_score(answers)

    def post(self, request, test_id, **kwargs):
        test = Test.objects.get(id=test_id)
        score = self.get_score(test, request.data["answers"])
        status = score >= test.passing_score
        return Response({
            "status": self.PASSED.get(status, self.UNKNOWN),
            "points": score
        })


class TestResultView(TemplateView):
    permission_classes = []
    template_name = settings.BASE_DIR + f"/templates/result.html"