from django.contrib.auth.mixins import LoginRequiredMixin
from django.http import HttpResponse
from django.shortcuts import render
from django.urls import reverse
from django.views import View
from mixins.views import (
    ObjectCreate,
    ObjectDelete,
    ObjectList,
    ObjectRead,
    ObjectUpdate,
)
from two_factor.views.mixins import OTPRequiredMixin

from core.clients.aggregators.nordigen import NordigenClient
from core.forms import AggregatorForm
from core.models import Aggregator, Requisition
from core.util import logs
from core.views.helpers import synchronize_async_helper

log = logs.get_logger(__name__)


class RequestBankFetch(LoginRequiredMixin, OTPRequiredMixin, View):
    template_name = "mixins/partials/notify.html"

    def get(self, request, pk=None):
        if pk:
            try:
                aggregator = Aggregator.get_by_id(pk, self.request.user)
                aggregators = [aggregator]

            except Aggregator.DoesNotExist:
                message = "Aggregator does not exist"
                context = {
                    "message": message,
                    "class": "danger",
                }
                return self.render_to_response(context)
        else:
            aggregators = Aggregator.objects.filter(user=self.request.user)

        for agg in aggregators:
            agg.fetch_accounts = True
            agg.save()

        context = {"class": "success", "message": "Fetch requested"}
        return render(request, self.template_name, context)


class ReqsList(LoginRequiredMixin, OTPRequiredMixin, ObjectList):
    list_template = "partials/aggregator-info.html"
    page_title = "Aggregator info"

    context_object_name_singular = "requisition"
    context_object_name = "requisitions"

    list_url_name = "reqs"
    list_url_args = ["type", "pk"]

    submit_url_name = "aggregator_countries"
    submit_url_args = ["type", "pk"]

    def get_context_data(self):
        context = super().get_context_data()
        pk = self.kwargs.get("pk")
        context["pk"] = pk
        self.extra_buttons = [
            {
                "url": reverse("bank_fetch", kwargs={"pk": pk}),
                "action": "refresh",
                "method": "get",
                "label": "Fetch account details",
                "icon": "fa-solid fa-refresh",
            },
        ]
        return context

    def get_queryset(self, **kwargs):
        pk = kwargs.get("pk")
        try:
            aggregator = Aggregator.get_by_id(pk, self.request.user)

        except Aggregator.DoesNotExist:
            context = {
                "message": "Aggregator does not exist",
                "class": "danger",
            }
            return self.render_to_response(context)

        self.page_title = (
            f"Requisitions for {aggregator.name} ({aggregator.get_service_display()})"
        )
        self.page_subtitle = f"Stored account details: {len(aggregator.currencies)}"

        run = synchronize_async_helper(NordigenClient(aggregator))
        reqs = synchronize_async_helper(run.get_requisitions())
        for req in reqs:
            # Add in Requisition object
            requisition_id = req["id"]
            requisition = Requisition.objects.filter(
                user=self.request.user,
                aggregator=aggregator,
                requisition_id=requisition_id,
            ).first()
            if requisition:
                req["requisition"] = requisition
        return reqs


class AggregatorCountriesList(LoginRequiredMixin, OTPRequiredMixin, ObjectList):
    list_template = "partials/aggregator-countries.html"
    page_title = "List of countries"

    list_url_name = "aggregator_countries"
    list_url_args = ["type", "pk"]

    context_object_name_singular = "country"
    context_object_name = "countries"

    def get_context_data(self):
        context = super().get_context_data()
        context["pk"] = self.kwargs.get("pk")
        return context

    def get_queryset(self, **kwargs):
        pk = kwargs.get("pk")
        try:
            aggregator = Aggregator.get_by_id(pk, self.request.user)

        except Aggregator.DoesNotExist:
            context = {
                "message": "Aggregator does not exist",
                "class": "danger",
            }
            return self.render_to_response(context)

        self.page_title = (
            f"Countries for {aggregator.name} ({aggregator.get_service_display()})"
        )
        run = synchronize_async_helper(NordigenClient(aggregator))
        countries = synchronize_async_helper(run.get_countries())
        self.extra_args = {"pk": pk}
        return countries


class AggregatorCountryBanksList(LoginRequiredMixin, OTPRequiredMixin, ObjectList):
    list_template = "partials/aggregator-country-banks.html"
    page_title = "List of banks"

    list_url_name = "aggregator_country_banks"
    list_url_args = ["type", "pk", "country"]

    context_object_name_singular = "bank"
    context_object_name = "banks"

    def get_context_data(self):
        context = super().get_context_data()
        context["pk"] = self.kwargs.get("pk")
        context["country"] = self.kwargs.get("country")
        return context

    def get_queryset(self, **kwargs):
        pk = kwargs.get("pk")
        country = kwargs.get("country")
        try:
            aggregator = Aggregator.get_by_id(pk, self.request.user)

        except Aggregator.DoesNotExist:
            context = {
                "message": "Aggregator does not exist",
                "class": "danger",
            }
            return self.render_to_response(context)

        self.page_title = (
            f"Banks for {aggregator.name} in {country} "
            f"({aggregator.get_service_display()})"
        )
        run = synchronize_async_helper(NordigenClient(aggregator))
        banks = synchronize_async_helper(run.get_banks(country))
        return banks


class AggregatorLinkBank(LoginRequiredMixin, OTPRequiredMixin, View):
    def get(self, request, *args, **kwargs):
        pk = kwargs.get("pk")
        bank = kwargs.get("bank")
        try:
            aggregator = Aggregator.get_by_id(pk, self.request.user)

        except Aggregator.DoesNotExist:
            context = {
                "message": "Aggregator does not exist",
                "class": "danger",
            }
            return self.render_to_response(context)
        run = synchronize_async_helper(NordigenClient(aggregator))
        auth_url = synchronize_async_helper(run.build_link(bank))

        # Create a blank response
        response = HttpResponse()
        response["HX-Redirect"] = auth_url
        return response


class ReqDelete(LoginRequiredMixin, OTPRequiredMixin, View):
    def delete(self, request, *args, **kwargs):
        pk = kwargs.get("pk")
        req_id = kwargs.get("req_id")
        try:
            aggregator = Aggregator.get_by_id(pk, self.request.user)

        except Aggregator.DoesNotExist:
            context = {
                "message": "Aggregator does not exist",
                "class": "danger",
            }
            return self.render_to_response(context)
        run = synchronize_async_helper(NordigenClient(aggregator))
        synchronize_async_helper(run.delete_requisition(req_id))
        response = HttpResponse(status=204)
        response["HX-Trigger"] = "requisitionEvent"
        return response


class ReqInfo(LoginRequiredMixin, OTPRequiredMixin, ObjectRead):
    context_object_name_singular = "requisition"
    context_object_name = "requisitions"
    detail_template = "partials/aggregator-req-info.html"

    def get_object(self, **kwargs):
        pk = kwargs.get("pk")
        req_id = kwargs.get("req_id")
        try:
            aggregator = Aggregator.get_by_id(pk, self.request.user)

        except Aggregator.DoesNotExist:
            context = {
                "message": "Aggregator does not exist",
                "class": "danger",
            }
            return self.render_to_response(context)
        run = synchronize_async_helper(NordigenClient(aggregator))
        req = synchronize_async_helper(run.get_all_account_info(req_id))
        self.extra_context = {"pretty": list(req.keys())}
        return req


class AggregatorList(LoginRequiredMixin, OTPRequiredMixin, ObjectList):
    list_template = "partials/aggregator-list.html"
    model = Aggregator
    page_title = "List of aggregator connections"

    list_url_name = "aggregators"
    list_url_args = ["type"]

    submit_url_name = "aggregator_create"


class AggregatorCreate(LoginRequiredMixin, OTPRequiredMixin, ObjectCreate):
    model = Aggregator
    form_class = AggregatorForm

    submit_url_name = "aggregator_create"


class AggregatorUpdate(LoginRequiredMixin, OTPRequiredMixin, ObjectUpdate):
    model = Aggregator
    form_class = AggregatorForm

    submit_url_name = "aggregator_update"

    def post_save(self, obj):
        obj.access_token = None
        obj.access_token_expires = None
        obj.save()


class AggregatorDelete(LoginRequiredMixin, OTPRequiredMixin, ObjectDelete):
    model = Aggregator