from datetime import timedelta
import json
from django.http import HttpResponseBadRequest, JsonResponse
from django.shortcuts import get_object_or_404, redirect, render
import stripe
from accounts import resource_action
from accounts.models import IAmPrincipal
from goodtimes.utils import ApiResponse
from django.contrib.auth import authenticate, login
import jwt
from rest_framework_simplejwt.tokens import AccessToken
from django.utils import timezone
from django.contrib.auth import get_user_model
from manage_subscriptions.forms import (
    PlanForm,
    SubscriptionForm,
    PrincipalSubscriptionForm,
)
from manage_wallets.models import (
    PaymentMethod,
    Transaction,
    TransactionStatus,
    TransactionType,
)
from .models import Plan, Subscription, PrincipalSubscription
from django.views import generic
from rest_framework import status
from django.contrib.auth.mixins import LoginRequiredMixin
from django.urls import reverse_lazy
from django.contrib import messages
from goodtimes import constants
from django.views.decorators.csrf import csrf_exempt
from django.views.decorators.http import require_POST
from django.conf import settings
from rest_framework.permissions import IsAuthenticated
from django.views.generic.base import TemplateView

# Create your views here.


class SubscriptionCreateOrUpdateView(LoginRequiredMixin, generic.View):
    # Set the page_name and resource
    page_name = resource_action.RESOURCE_MANAGE_SUBSCRIPTIONS
    resource = resource_action.RESOURCE_MANAGE_SUBSCRIPTIONS

    # Initialize the action as ACTION_CREATE (can change based on logic)
    action = resource_action.ACTION_CREATE  # Default action

    template_name = "manage_subscriptions/subscription_add.html"
    model = Subscription
    form_class = SubscriptionForm
    success_url = reverse_lazy("manage_subscriptions:subscription_list")
    error_message = "An error occurred while saving the data."

    # Determine the success message dynamically based on whether it's an update or create
    def get_success_message(self):
        self.success_message = (
            constants.RECORD_CREATED if not self.object else constants.RECORD_UPDATED
        )
        return self.success_message

    # Get the object (if exists) based on URL parameter 'pk'
    def get_object(self):
        pk = self.kwargs.get("pk")
        return get_object_or_404(self.model, pk=pk) if pk else None

    # Add page_name and operation to the context
    def get_context_data(self, **kwargs):
        context = {
            "page_name": self.page_name,
            "operation": "Add" if not self.object else "Edit",
        }
        context.update(kwargs)  # Include any additional context data passed to the view
        return context

    def get(self, request, *args, **kwargs):
        self.object = self.get_object()

        # If an object is found, change action to ACTION_UPDATE
        if self.object is not None:
            self.action = resource_action.ACTION_UPDATE

        form = self.form_class(instance=self.object)
        context = self.get_context_data(form=form)
        return render(request, self.template_name, context=context)

    def post(self, request, *args, **kwargs):
        self.object = self.get_object()

        # If an object is found, change action to ACTION_UPDATE
        if self.object is not None:
            self.action = resource_action.ACTION_UPDATE

        form = self.form_class(request.POST, instance=self.object)
        if not form.is_valid():
            print(form.errors)
            context = self.get_context_data(form=form)
            return render(request, self.template_name, context=context)
        form.save()
        messages.success(self.request, self.get_success_message())
        return redirect(self.success_url)


class SubscriptionView(LoginRequiredMixin, generic.ListView):
    page_name = resource_action.RESOURCE_MANAGE_SUBSCRIPTIONS
    resource = resource_action.RESOURCE_MANAGE_SUBSCRIPTIONS
    action = resource_action.ACTION_READ
    model = Subscription
    template_name = "manage_subscriptions/subscription_list.html"
    context_object_name = "subscription_obj"

    def get_queryset(self):
        queryset = super().get_queryset().filter(deleted=False, active=True)
        return queryset.order_by("-created_on")

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context["page_name"] = self.page_name
        return context


# class SubscriptionDeleteView(LoginRequiredMixin, generic.View):
#     page_name = resource_action.RESOURCE_MANAGE_SUBSCRIPTIONS
#     resource = resource_action.RESOURCE_MANAGE_SUBSCRIPTIONS
#     action = resource_action.ACTION_DELETE
#     model = Subscription
#     success_url = reverse_lazy("manage_subscriptions:subscription_list")
#     success_message = constants.RECORD_DELETED
#     error_message = constants.RECORD_NOT_FOUND

#     def get(self, request, pk):
#         try:
#             type_obj = self.model.objects.get(id=pk)
#             type_obj.deleted = True
#             type_obj.active = False
#             type_obj.save()
#             messages.success(request, self.success_message)
#         except self.model.DoesNotExist:
#             messages.success(request, self.error_message)

#         return redirect(self.success_url)


# class PlanCreateOrUpdateView(LoginRequiredMixin, generic.View):
#     # Set the page_name and resource
#     page_name = resource_action.RESOURCE_MANAGE_SUBSCRIPTIONS
#     resource = resource_action.RESOURCE_MANAGE_SUBSCRIPTIONS

#     # Initialize the action as ACTION_CREATE (can change based on logic)
#     action = resource_action.ACTION_CREATE  # Default action

#     template_name = "manage_subscriptions/plan_add.html"
#     model = Plan
#     form_class = PlanForm
#     success_url = reverse_lazy("manage_subscriptions:plan_list")
#     error_message = "An error occurred while saving the data."

#     # Determine the success message dynamically based on whether it's an update or create
#     def get_success_message(self):
#         self.success_message = (
#             constants.RECORD_CREATED if not self.object else constants.RECORD_UPDATED
#         )
#         return self.success_message

#     # Get the object (if exists) based on URL parameter 'pk'
#     def get_object(self):
#         pk = self.kwargs.get("pk")
#         return get_object_or_404(self.model, pk=pk) if pk else None

#     # Add page_name and operation to the context
#     def get_context_data(self, **kwargs):
#         context = {
#             "page_name": self.page_name,
#             "operation": "Add" if not self.object else "Edit",
#         }
#         context.update(kwargs)  # Include any additional context data passed to the view
#         return context

#     def get(self, request, *args, **kwargs):
#         self.object = self.get_object()

#         # If an object is found, change action to ACTION_UPDATE
#         if self.object is not None:
#             self.action = resource_action.ACTION_UPDATE

#         form = self.form_class(instance=self.object)
#         context = self.get_context_data(form=form)
#         return render(request, self.template_name, context=context)

#     def post(self, request, *args, **kwargs):
#         self.object = self.get_object()

#         # If an object is found, change action to ACTION_UPDATE
#         if self.object is not None:
#             self.action = resource_action.ACTION_UPDATE

#         form = self.form_class(request.POST, instance=self.object)
#         if not form.is_valid():
#             print(form.errors)
#             context = self.get_context_data(form=form)
#             return render(request, self.template_name, context=context)
#         form.save()
#         messages.success(self.request, self.get_success_message())
#         return redirect(self.success_url)


class PlanView(LoginRequiredMixin, generic.ListView):
    page_name = resource_action.RESOURCE_MANAGE_SUBSCRIPTIONS
    resource = resource_action.RESOURCE_MANAGE_SUBSCRIPTIONS
    action = resource_action.ACTION_READ
    model = Plan
    template_name = "manage_subscriptions/plan_list.html"
    context_object_name = "plan_obj"

    def get_queryset(self):
        return super().get_queryset().filter(deleted=False)

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context["page_name"] = self.page_name
        return context


# class PlanDeleteView(LoginRequiredMixin, generic.View):
#     page_name = resource_action.RESOURCE_MANAGE_SUBSCRIPTIONS
#     resource = resource_action.RESOURCE_MANAGE_SUBSCRIPTIONS
#     action = resource_action.ACTION_DELETE
#     model = Plan
#     success_url = reverse_lazy("manage_subscriptions:plan_list")
#     success_message = constants.RECORD_DELETED
#     error_message = constants.RECORD_NOT_FOUND

#     def get(self, request, pk):
#         try:
#             type_obj = self.model.objects.get(id=pk)
#             type_obj.deleted = True
#             type_obj.active = False
#             type_obj.save()
#             messages.success(request, self.success_message)
#         except self.model.DoesNotExist:
#             messages.success(request, self.error_message)

#         return redirect(self.success_url)


class PrincipalSubscriptionCreateOrUpdateView(LoginRequiredMixin, generic.View):
    # Set the page_name and resource
    page_name = resource_action.RESOURCE_MANAGE_SUBSCRIPTIONS
    resource = resource_action.RESOURCE_MANAGE_SUBSCRIPTIONS

    # Initialize the action as ACTION_CREATE (can change based on logic)
    action = resource_action.ACTION_CREATE  # Default action

    template_name = "manage_subscriptions/principal_subscription_add.html"
    model = PrincipalSubscription
    form_class = PrincipalSubscriptionForm
    success_url = reverse_lazy("manage_subscriptions:principal_subscriptions_list")
    error_message = "An error occurred while saving the data."

    # Determine the success message dynamically based on whether it's an update or create
    def get_success_message(self):
        self.success_message = (
            constants.RECORD_CREATED if not self.object else constants.RECORD_UPDATED
        )
        return self.success_message

    # Get the object (if exists) based on URL parameter 'pk'
    def get_object(self):
        pk = self.kwargs.get("pk")
        return get_object_or_404(self.model, pk=pk) if pk else None

    # Add page_name and operation to the context
    def get_context_data(self, **kwargs):
        context = {
            "page_name": self.page_name,
            "operation": "Add" if not self.object else "Edit",
        }
        context.update(kwargs)  # Include any additional context data passed to the view
        return context

    def get(self, request, *args, **kwargs):
        self.object = self.get_object()

        # If an object is found, change action to ACTION_UPDATE
        if self.object is not None:
            self.action = resource_action.ACTION_UPDATE

        form = self.form_class(instance=self.object)
        context = self.get_context_data(form=form)
        return render(request, self.template_name, context=context)

    def post(self, request, *args, **kwargs):
        self.object = self.get_object()

        # If an object is found, change action to ACTION_UPDATE
        if self.object is not None:
            self.action = resource_action.ACTION_UPDATE

        form = self.form_class(request.POST, instance=self.object)
        if not form.is_valid():
            print(form.errors)
            context = self.get_context_data(form=form)
            return render(request, self.template_name, context=context)
        form.save()
        messages.success(self.request, self.get_success_message())
        return redirect(self.success_url)


class PrincipalSubscriptionView(LoginRequiredMixin, generic.ListView):
    page_name = resource_action.RESOURCE_PRINCIPAL_SUBSCRIPTIONS
    resource = resource_action.RESOURCE_PRINCIPAL_SUBSCRIPTIONS
    action = resource_action.ACTION_READ
    model = PrincipalSubscription
    template_name = "manage_subscriptions/principal_subscriptions_list.html"
    context_object_name = "principal_subscription_obj"

    def get_queryset(self):
        return super().get_queryset().all()

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context["page_name"] = self.page_name
        return context


class PrincipalSubscriptionDeleteView(LoginRequiredMixin, generic.View):
    page_name = resource_action.RESOURCE_MANAGE_SUBSCRIPTIONS
    resource = resource_action.RESOURCE_MANAGE_SUBSCRIPTIONS
    action = resource_action.ACTION_DELETE
    model = PrincipalSubscription
    success_url = reverse_lazy("manage_subscriptions:principal_subscriptions_list")
    success_message = constants.RECORD_DELETED
    error_message = constants.RECORD_NOT_FOUND

    def get(self, request, pk):
        try:
            type_obj = self.model.objects.get(id=pk)
            type_obj.deleted = True
            type_obj.active = False
            type_obj.save()
            messages.success(request, self.success_message)
        except self.model.DoesNotExist:
            messages.success(request, self.error_message)

        return redirect(self.success_url)


class SubscriptionPageView(TemplateView):
    template_name = "stripe_html/index.html"

    def get(self, request, *args, **kwargs):
        # Example of extracting the token from a query parameter or cookie
        token = request.GET.get("token")
        # token = request.GET.get("token") or request.COOKIES.get("jwt")
        print("token: ", token)
        if token:
            try:
                # Decode and validate token
                payload = jwt.decode(token, settings.SECRET_KEY, algorithms=["HS256"])
                print("payload: ", payload)
                try:
                    UserModel = get_user_model()
                    user = UserModel.objects.get(id=payload["user_id"])
                    # Manually specify the authentication backend
                    user.backend = "django.contrib.auth.backends.ModelBackend"
                    # Log the user in
                    login(request, user)
                    print("Logged in user: ", user)

                except IAmPrincipal.DoesNotExist:
                    # Handle expired token
                    return HttpResponseBadRequest("No Principal Found")

            except jwt.ExpiredSignatureError:
                # Handle expired token
                return HttpResponseBadRequest("Expired Signature Error")
            except jwt.InvalidTokenError:
                return HttpResponseBadRequest("Invalid Token Error")

        return super().get(request, *args, **kwargs)

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        request = self.request
        if request.user.is_authenticated:
            print("request.user: ", request.user)
            subscriptions = Subscription.objects.filter(
                principal_types=request.user.principal_type
            )

            if subscriptions.exists():
                context["subscriptions"] = subscriptions
            else:
                # Handle the case where no subscriptions are found for the principal type.
                context["error"] = "No subscriptions found for your user type."
        return context


@csrf_exempt
def stripe_config(request):
    if request.method == "GET":
        stripe_config = {"publicKey": settings.STRIPE_PUBLISH_KEY}
        return JsonResponse(stripe_config, safe=False)


@csrf_exempt
@require_POST
def create_checkout_session(request):
    stripe.api_key = settings.STRIPE_SECRET_KEY
    data = json.loads(request.body)
    print("data: ", data)
    subscription_id = data.get("subscriptionId", None)
    # if request.method == "GET":
    #     subscription_id = None  # Assuming 3 is a default or fallback subscription ID

    #     if request.user.is_authenticated:
    #         print("request.user: ", request.user)
    #         if request.user.principal_type.name == "event_user":
    #             subscription_id = 2
    #         elif request.user.principal_type.name == "event_manager":
    #             subscription_id = 1

    try:
        subscription = Subscription.objects.get(id=subscription_id)
    except Subscription.DoesNotExist:
        return ApiResponse.error(
            status=status.HTTP_404_NOT_FOUND, message="Subscription not found."
        )

    order_id = (
        "order_" + str(timezone.localtime().timestamp()) + str(request.user.email)
    )
    print("order_id: ", order_id)

    # Create a Transaction object with status INITIATE
    transaction = Transaction.objects.create(
        principal=request.user,
        principal_subscription=None,  # Since the subscription is not created yet
        transaction_type=TransactionType.PAYMENT,  # or PAYMENT, as applicable
        payment_method=PaymentMethod.CARD,  # Assuming CARD for this example
        transaction_status=TransactionStatus.INITIATE,
        amount=subscription.amount,  # Fetching amount from the Subscription object
        order_id=order_id,
        comment="Principal Subscription Initiated",
    )

    subscription_days = subscription.plan.days
    today = timezone.now().date()
    last_date = today + timedelta(days=int(subscription_days))

    # To Avoid Duplicacy of Principal Subscription
    principal_subscription = PrincipalSubscription.objects.create(
        principal=request.user,
        subscription=subscription,
        is_paid=False,
        order_id=order_id,
        start_date=today,
        end_date=last_date,
        grace_period_end_date=last_date + timedelta(days=15),
    )

    try:
        # customer = stripe.Customer.create(
        #     email=request.user.email,
        #     shipping={
        #         "name": request.user.first_name,
        #         "address": {
        #             "line1": request.user.city,
        #             "city": request.user.city,
        #             "postal_code": "SW1A 2AA",
        #             "country": request.user.address_line1,  # Adjust accordingly
        #         },
        #     },
        # )

        # Create a checkout session
        checkout_session = stripe.checkout.Session.create(
            payment_method_types=["card"],
            # customer=customer.id,  # Optional: Link the session to the Stripe customer created above
            line_items=[
                {
                    "price_data": {
                        "currency": "gbp",
                        "product_data": {
                            "name": subscription.title,  # Adjust with your subscription/product name
                        },
                        "unit_amount": int(
                            subscription.amount * 100
                        ),  # Unit amount in cents/pence
                        "tax_behavior": "inclusive",  # or 'exclusive', based on your tax settings
                    },
                    "quantity": 1,
                }
            ],
            mode="payment",
            success_url=request.build_absolute_uri("/subscriptions/success/"),
            cancel_url=request.build_absolute_uri("/subscriptions/cancel/"),
            metadata={
                "principal": str(request.user.id),
                "order_id": str(order_id),
                # "subscription_id": str(subscription.id),
                "transaction_id": str(transaction.id),
                "principal_subscription_id": str(principal_subscription.id),
            },
            # Optionally, set shipping options, allow promotion codes, etc.
        )
        return JsonResponse({"sessionId": checkout_session["id"]})
    except Exception as e:
        return JsonResponse({"error": str(e)})


class SuccessView(TemplateView):
    template_name = "stripe_html/success.html"


class CancelView(TemplateView):
    template_name = "stripe_html/cancel.html"


# class IndexView(TemplateView):
#     template_name = "stripe_html/index.html"

#     def get(self, request, *args, **kwargs):
#         # Example of extracting the token from a query parameter or cookie
#         token = request.GET.get("token")
#         # token = request.GET.get("token") or request.COOKIES.get("jwt")
#         print("token: ", token)
#         if token:
#             try:
#                 # Decode and validate token
#                 payload = jwt.decode(token, settings.SECRET_KEY, algorithms=["HS256"])
#                 print("payload: ", payload)
#                 try:
#                     UserModel = get_user_model()
#                     user = UserModel.objects.get(id=payload["user_id"])
#                     # Manually specify the authentication backend
#                     user.backend = "django.contrib.auth.backends.ModelBackend"
#                     # Log the user in
#                     login(request, user)
#                     print("Logged in user: ", user)

#                 except IAmPrincipal.DoesNotExist:
#                     # Handle expired token
#                     return HttpResponseBadRequest("No Principal Found")

#             except jwt.ExpiredSignatureError:
#                 # Handle expired token
#                 return HttpResponseBadRequest("Expired Signature Error")
#             except jwt.InvalidTokenError:
#                 return HttpResponseBadRequest("Invalid Token Error")

#         return super().get(request, *args, **kwargs)