from django.http.response import JsonResponse
from django.views.decorators.csrf import ensure_csrf_cookie, csrf_protect
from django.utils.decorators import method_decorator
from rest_framework.parsers import JSONParser
from rest_framework.views import APIView
from django.core.cache import cache
from .models import Enseignant, Specialite, Classe
from .serializers import EnseignantSerializer, SpecialiteSerializer, ClasseSerializer
from N3wtSchool import bdd

class EnseignantsView(APIView):
    def get(self, request):
        enseignantsList=bdd.getAllObjects(Enseignant)
        enseignants_serializer=EnseignantSerializer(enseignantsList, many=True)

        return JsonResponse(enseignants_serializer.data, safe=False)

@method_decorator(csrf_protect, name='dispatch')
@method_decorator(ensure_csrf_cookie, name='dispatch')
class EnseignantView(APIView):
    def get (self, request, _id):
        enseignant = bdd.getObject(_objectName=Enseignant, _columnName='id', _value=_id)
        enseignant_serializer=EnseignantSerializer(enseignant)

        return JsonResponse(enseignant_serializer.data, safe=False)

    def post(self, request):
        enseignant_data=JSONParser().parse(request)
        enseignant_serializer = EnseignantSerializer(data=enseignant_data)

        if enseignant_serializer.is_valid():
            enseignant_serializer.save()
            
            return JsonResponse(enseignant_serializer.data, safe=False)           

        return JsonResponse(enseignant_serializer.errors, safe=False)

    def put(self, request, _id):
        enseignant_data=JSONParser().parse(request)
        enseignant = bdd.getObject(_objectName=Enseignant, _columnName='id', _value=_id)
        enseignant_serializer = EnseignantSerializer(enseignant, data=enseignant_data)
        if enseignant_serializer.is_valid():
            enseignant_serializer.save()
            return JsonResponse(enseignant_serializer.data, safe=False)

        return JsonResponse(enseignant_serializer.errors, safe=False)

    def delete(self, request, _id):
        enseignant = bdd.getObject(_objectName=Enseignant, _columnName='id', _value=_id)
        if enseignant != None:
            enseignant.delete()
    
        return JsonResponse("La suppression de la spécialité a été effectuée avec succès", safe=False)

@method_decorator(csrf_protect, name='dispatch')
@method_decorator(ensure_csrf_cookie, name='dispatch')
class SpecialitesView(APIView):
    def get(self, request):
        specialitesList=bdd.getAllObjects(Specialite)
        specialites_serializer=SpecialiteSerializer(specialitesList, many=True)

        return JsonResponse(specialites_serializer.data, safe=False)

    def post(self, request):
        specialites_data=JSONParser().parse(request)
        all_valid = True
        for specialite_data in specialites_data:
            specialite_serializer = SpecialiteSerializer(data=specialite_data)

            if specialite_serializer.is_valid():
                specialite_serializer.save()
            else:
                all_valid = False
                break
        if all_valid:
            specialitesList = bdd.getAllObjects(Specialite)
            specialites_serializer = SpecialiteSerializer(specialitesList, many=True)

        return JsonResponse(specialite_serializer.errors, safe=False)


@method_decorator(csrf_protect, name='dispatch')
@method_decorator(ensure_csrf_cookie, name='dispatch')
class SpecialiteView(APIView):
    def get (self, request, _id):
        specialite = bdd.getObject(_objectName=Specialite, _columnName='id', _value=_id)
        specialite_serializer=SpecialiteSerializer(specialite)

        return JsonResponse(specialite_serializer.data, safe=False)

    def post(self, request):
        specialite_data=JSONParser().parse(request)
        specialite_serializer = SpecialiteSerializer(data=specialite_data)

        if specialite_serializer.is_valid():
            specialite_serializer.save()
            return JsonResponse(specialite_serializer.data, safe=False)

        return JsonResponse(specialite_serializer.errors, safe=False)

    def put(self, request, _id):
        specialite_data=JSONParser().parse(request)
        specialite = bdd.getObject(_objectName=Specialite, _columnName='id', _value=_id)
        specialite_serializer = SpecialiteSerializer(specialite, data=specialite_data)
        if specialite_serializer.is_valid():
            specialite_serializer.save()
            return JsonResponse(specialite_serializer.data, safe=False)

        return JsonResponse(specialite_serializer.errors, safe=False)

    def delete(self, request, _id):
        specialite = bdd.getObject(_objectName=Specialite, _columnName='id', _value=_id)
        if specialite != None:
            specialite.delete()
    
        return JsonResponse("La suppression de la spécialité a été effectuée avec succès", safe=False)

@method_decorator(csrf_protect, name='dispatch')
@method_decorator(ensure_csrf_cookie, name='dispatch')
class ClassesView(APIView):
    def get(self, request):        
        classesList=bdd.getAllObjects(Classe)
        classes_serializer=ClasseSerializer(classesList, many=True)
        return JsonResponse(classes_serializer.data, safe=False)

    def post(self, request):
        all_valid = True
        classes_data=JSONParser().parse(request)
        for classe_data in classes_data:
            classe_serializer = ClasseSerializer(data=classe_data)

            if classe_serializer.is_valid():
                classe_serializer.save()
            else:
                all_valid = False
                break
            
        if all_valid:
            classesList = bdd.getAllObjects(Classe)
            classes_serializer = ClasseSerializer(classesList, many=True)

            return JsonResponse(classes_serializer.data, safe=False)

        return JsonResponse(classe_serializer.errors, safe=False)

@method_decorator(csrf_protect, name='dispatch')
@method_decorator(ensure_csrf_cookie, name='dispatch')
class ClasseView(APIView):
    def get (self, request, _id):
        classe = bdd.getObject(_objectName=Classe, _columnName='id', _value=_id)
        classe_serializer=ClasseSerializer(classe)

        return JsonResponse(classe_serializer.data, safe=False)

    def post(self, request):
        classe_data=JSONParser().parse(request)
        classe_serializer = ClasseSerializer(data=classe_data)

        if classe_serializer.is_valid():
            classe_serializer.save()            
            return JsonResponse(classe_serializer.data, safe=False)

        return JsonResponse(classe_serializer.errors, safe=False)

    def put(self, request, _id):
        classe_data=JSONParser().parse(request)
        classe = bdd.getObject(_objectName=Classe, _columnName='id', _value=_id)
        classe_serializer = ClasseSerializer(classe, data=classe_data)
        if classe_serializer.is_valid():
            classe_serializer.save()
            return JsonResponse(classe_serializer.data, safe=False)

        return JsonResponse(classe_serializer.errors, safe=False)

    def delete(self, request, _id):
        classe = bdd.getObject(_objectName=Classe, _columnName='id', _value=_id)
        if classe != None:
            classe.delete()
    
        return JsonResponse("La suppression de la classe a été effectuée avec succès", safe=False)