import json

from django.urls import reverse_lazy
from django.shortcuts import get_object_or_404
from django.utils.translation import gettext_lazy as _
from django.views.generic.edit import (
    CreateView,
    UpdateView,
    FormView,
)
from django.views.generic.base import TemplateView
from dashboard.mixins import DashboardView
from evidence.models import Annotation
from evidence.xapian import search
from lot.models import LotTag
from device.models import Device
from device.forms import DeviceFormSet


class NewDeviceView(DashboardView, FormView):
    template_name = "new_device.html"
    title = _("New Device")
    breadcrumb = "Device / New Device"
    success_url = reverse_lazy('device:add')
    form_class = DeviceFormSet

    def form_valid(self, form):
        form.save(self.request.user)
        response = super().form_valid(form)
        return response

    def form_invalid(self, form):
        response = super().form_invalid(form)
        return response


# class AddToLotView(DashboardView, FormView):
#     template_name = "list_lots.html"
#     title = _("Add to lots")
#     breadcrumb = "lot / add to lots"
#     success_url = reverse_lazy('dashboard:unassigned_devices')
#     form_class = LotsForm

#     def get_context_data(self, **kwargs):
#         context = super().get_context_data(**kwargs)
#         lots = Lot.objects.filter(owner=self.request.user)
#         lot_tags = LotTag.objects.filter(owner=self.request.user)
#         context.update({
#             'lots': lots,
#             'lot_tags':lot_tags,
#         })
#         return context

#     def get_form(self):
#         form = super().get_form()
#         form.fields["lots"].queryset = Lot.objects.filter(owner=self.request.user)
#         return form

#     def form_valid(self, form):
#         form.devices = self.get_session_devices()
#         form.save()
#         response = super().form_valid(form)
#         return response


class EditDeviceView(DashboardView, UpdateView):
    template_name = "new_device.html"
    title = _("Update Device")
    breadcrumb = "Device / Update Device"
    success_url = reverse_lazy('dashboard:unassigned_devices')
    model = Annotation

    def get_form_kwargs(self):
        pk = self.kwargs.get('pk')
        self.object = get_object_or_404(self.model, pk=pk)
        self.success_url = reverse_lazy('device:details', args=[pk])
        kwargs = super().get_form_kwargs()
        return kwargs


class DetailsView(DashboardView, TemplateView):
    template_name = "details.html"
    title = _("Device")
    breadcrumb = "Device / Details"
    model = Annotation

    def get(self, request, *args, **kwargs):
        self.pk = kwargs['pk']
        self.object = Device(id=self.pk)
        return super().get(request, *args, **kwargs)

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        self.object.initial()
        lot_tags = LotTag.objects.filter(owner=self.request.user.institution)
        context.update({
            'object': self.object,
            'snapshot': self.object.get_last_evidence(),
            'lot_tags': lot_tags,
        })
        return context


class DeviceWebView(DashboardView, TemplateView):
    template_name = "device_web.html"
    title = _("Device Website")
    breadcrumb = "Device / Web"
    model = Annotation

    def get(self, request, *args, **kwargs):
        self.pk = kwargs['pk']
        self.object = Device(id=self.pk)
        return super().get(request, *args, **kwargs)

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        self.object.initial()
        lot_tags = LotTag.objects.filter(owner=self.request.user.institution)
        context.update({
            'object': self.object,
            'snapshot': self.object.get_last_evidence(),
            'lot_tags': lot_tags,
        })
        return context


class AddAnnotationView(DashboardView, CreateView):
    template_name = "new_annotation.html"
    title = _("New annotation")
    breadcrumb = "Device / New annotation"
    success_url = reverse_lazy('dashboard:unassigned_devices')
    model = Annotation
    fields = ("key", "value")

    def form_valid(self, form):
        form.instance.owner = self.request.user.institution
        form.instance.uuid = self.annotation.uuid
        form.instance.type = Annotation.Type.USER
        response = super().form_valid(form)
        return response

    def get_form_kwargs(self):
        pk = self.kwargs.get('pk')
        institution = self.request.user.institution
        self.annotation = Annotation.objects.filter(
            owner=institution, value=pk, type=Annotation.Type.SYSTEM
        ).first()
        if not self.annotation:
            get_object_or_404(Annotation, pk=0, owner=institution)
        self.success_url = reverse_lazy('device:details', args=[pk])
        kwargs = super().get_form_kwargs()
        return kwargs


class AddDocumentView(DashboardView, CreateView):
    template_name = "new_annotation.html"
    title = _("New Document")
    breadcrumb = "Device / New document"
    success_url = reverse_lazy('dashboard:unassigned_devices')
    model = Annotation
    fields = ("key", "value")

    def form_valid(self, form):
        form.instance.owner = self.request.user.institution
        form.instance.uuid = self.annotation.uuid
        form.instance.type = Annotation.Type.DOCUMENT
        response = super().form_valid(form)
        return response

    def get_form_kwargs(self):
        pk = self.kwargs.get('pk')
        institution = self.request.user.institution
        self.annotation = Annotation.objects.filter(
            owner=institution, value=pk, type=Annotation.Type.SYSTEM
        ).first()
        if not self.annotation:
            get_object_or_404(Annotation, pk=0, owner=institution)
        self.success_url = reverse_lazy('device:details', args=[pk])
        kwargs = super().get_form_kwargs()
        return kwargs