# -*- coding: utf-8 -*-

# Copyright (c) 2012-2018, Ben Lopatin and contributors
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# Redistributions of source code must retain the above copyright notice, this
# list of conditions and the following disclaimer.  Redistributions in binary
# form must reproduce the above copyright notice, this list of conditions and the
# following disclaimer in the documentation and/or other materials provided with
# the distribution
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.


from django.contrib.sites.shortcuts import get_current_site
from django.http import HttpResponseBadRequest
from django.shortcuts import redirect
from django.shortcuts import render
from django.utils.translation import ugettext as _
from django.views.generic import CreateView
from django.views.generic import DeleteView
from django.views.generic import DetailView
from django.views.generic import FormView
from django.views.generic import ListView
from django.views.generic import UpdateView

from organizations.backends import invitation_backend
from organizations.backends import registration_backend
from organizations.compat import reverse
from organizations.forms import OrganizationAddForm
from organizations.forms import OrganizationForm
from organizations.forms import OrganizationUserAddForm
from organizations.forms import OrganizationUserForm
from organizations.forms import SignUpForm
from organizations.utils import create_organization
from organizations.views.mixins import OrganizationMixin
from organizations.views.mixins import OrganizationUserMixin


class BaseOrganizationList(ListView):
    context_object_name = "organizations"

    def get_queryset(self):
        return self.org_model.active.filter(users=self.request.user)


class BaseOrganizationDetail(OrganizationMixin, DetailView):

    def get_context_data(self, **kwargs):
        context = super(BaseOrganizationDetail, self).get_context_data(**kwargs)
        context["organization_users"] = self.organization.organization_users.all()
        context["organization"] = self.organization
        return context


class BaseOrganizationCreate(CreateView):
    form_class = OrganizationAddForm
    template_name = "organizations/organization_form.html"

    def get_success_url(self):
        return reverse("organization_list")

    def get_form_kwargs(self):
        kwargs = super(BaseOrganizationCreate, self).get_form_kwargs()
        kwargs.update({"request": self.request})
        return kwargs


class BaseOrganizationUpdate(OrganizationMixin, UpdateView):
    form_class = OrganizationForm

    def get_form_kwargs(self):
        kwargs = super(BaseOrganizationUpdate, self).get_form_kwargs()
        kwargs.update({"request": self.request})
        return kwargs


class BaseOrganizationDelete(OrganizationMixin, DeleteView):

    def get_success_url(self):
        return reverse("organization_list")


class BaseOrganizationUserList(OrganizationMixin, ListView):

    def get(self, request, *args, **kwargs):
        self.organization = self.get_organization()
        self.object_list = self.organization.organization_users.all()
        context = self.get_context_data(
            object_list=self.object_list,
            organization_users=self.object_list,
            organization=self.organization,
        )
        return self.render_to_response(context)


class BaseOrganizationUserDetail(OrganizationUserMixin, DetailView):
    pass


class BaseOrganizationUserCreate(OrganizationMixin, CreateView):
    form_class = OrganizationUserAddForm
    template_name = "organizations/organizationuser_form.html"

    def get_success_url(self):
        return reverse(
            "organization_user_list",
            kwargs={"organization_pk": self.object.organization.pk},
        )

    def get_form_kwargs(self):
        kwargs = super(BaseOrganizationUserCreate, self).get_form_kwargs()
        kwargs.update({"organization": self.organization, "request": self.request})
        return kwargs

    def get(self, request, *args, **kwargs):
        self.organization = self.get_object()
        return super(BaseOrganizationUserCreate, self).get(request, *args, **kwargs)

    def post(self, request, *args, **kwargs):
        self.organization = self.get_object()
        return super(BaseOrganizationUserCreate, self).post(request, *args, **kwargs)


class BaseOrganizationUserRemind(OrganizationUserMixin, DetailView):
    template_name = "organizations/organizationuser_remind.html"
    # TODO move to invitations backend?

    def get_object(self, **kwargs):
        self.organization_user = super(BaseOrganizationUserRemind, self).get_object()
        if self.organization_user.user.is_active:
            raise HttpResponseBadRequest(_("User is already active"))
        return self.organization_user

    def post(self, request, *args, **kwargs):
        self.object = self.get_object()
        invitation_backend().send_reminder(
            self.object.user,
            **{
                "domain": get_current_site(self.request),
                "organization": self.organization,
                "sender": request.user,
            }
        )
        return redirect(self.object)


class BaseOrganizationUserUpdate(OrganizationUserMixin, UpdateView):
    form_class = OrganizationUserForm


class BaseOrganizationUserDelete(OrganizationUserMixin, DeleteView):

    def get_success_url(self):
        return reverse(
            "organization_user_list",
            kwargs={"organization_pk": self.object.organization.pk},
        )


class OrganizationSignup(FormView):
    """
    View that allows unregistered users to create an organization account.

    It simply processes the form and then calls the specified registration
    backend.
    """
    form_class = SignUpForm
    template_name = "organizations/signup_form.html"
    # TODO get success from backend, because some backends may do something
    # else, like require verification
    backend = registration_backend()

    def dispatch(self, request, *args, **kwargs):
        try:
            if request.user.is_authenticated():
                return redirect("organization_add")
        except TypeError:
            if request.user.is_authenticated:
                return redirect("organization_add")
        return super(OrganizationSignup, self).dispatch(request, *args, **kwargs)

    def get_success_url(self):
        if hasattr(self, "success_url"):
            return self.success_url
        return reverse("organization_signup_success")

    def form_valid(self, form):
        """
        """
        user = self.backend.register_by_email(form.cleaned_data["email"])
        create_organization(
            user=user,
            name=form.cleaned_data["name"],
            slug=form.cleaned_data["slug"],
            is_active=False,
        )
        return redirect(self.get_success_url())

    def signup_success(self, request):
        return render(request, "organizations/signup_success.html", {})


class ViewFactory(object):
    """
    A class that can create a faked 'module' with model specific views

    These views have NO access control applied.
    """

    def __init__(self, org_model):
        self.org_model = org_model

    @property
    def OrganizationList(self):
        klass = BaseOrganizationList
        klass.org_model = self.org_model
        return klass

    @property
    def OrganizationDetail(self):
        klass = BaseOrganizationDetail
        klass.org_model = self.org_model
        return klass

    @property
    def OrganizationCreate(self):
        klass = BaseOrganizationCreate
        klass.org_model = self.org_model
        return klass

    @property
    def OrganizationUpdate(self):
        klass = BaseOrganizationUpdate
        klass.org_model = self.org_model
        return klass

    @property
    def OrganizationDelete(self):
        klass = BaseOrganizationDelete
        klass.org_model = self.org_model
        return klass

    @property
    def OrganizationUserList(self):
        klass = BaseOrganizationUserList
        klass.org_model = self.org_model
        return klass

    @property
    def OrganizationUserDetail(self):
        klass = BaseOrganizationUserList
        klass.org_model = self.org_model
        return klass

    @property
    def OrganizationUserUpdate(self):
        klass = BaseOrganizationUserList
        klass.org_model = self.org_model
        return klass

    @property
    def OrganizationUserCreate(self):
        klass = BaseOrganizationUserList
        klass.org_model = self.org_model
        return klass

    @property
    def OrganizationUserDelete(self):
        klass = BaseOrganizationUserList
        klass.org_model = self.org_model
        return klass

    @property
    def OrganizationUserRemind(self):
        klass = BaseOrganizationUserList
        klass.org_model = self.org_model
        return klass
