from django.contrib import messages
from django.contrib.auth.decorators import login_required
from django.contrib.auth.mixins import LoginRequiredMixin
from django.urls import reverse

from konova.sub_settings.context_settings import TAB_TITLE_IDENTIFIER
from konova.views.base import BaseView, BaseModalFormView
from user.forms.modals.team import NewTeamModalForm, EditTeamModalForm, RemoveTeamModalForm, LeaveTeamModalForm
from user.forms.modals.user import UserContactForm
from user.forms.team import TeamDataForm
from user.forms.user import UserNotificationForm
from user.models import User, Team
from django.http import HttpRequest, Http404
from django.shortcuts import render, redirect, get_object_or_404
from django.utils.translation import gettext_lazy as _

from konova.contexts import BaseContext
from konova.decorators import login_required_modal


class UserDetailView(LoginRequiredMixin, BaseView):
    _TAB_TITLE = _("User settings")
    _TEMPLATE = "user/index.html"

    def get(self, request: HttpRequest):
        context = {
            "user": request.user,
            TAB_TITLE_IDENTIFIER: self._TAB_TITLE,
        }
        context = BaseContext(request, context).context
        return render(request, self._TEMPLATE, context)


class NotificationsView(LoginRequiredMixin, BaseView):
    _TEMPLATE = "user/notifications.html"
    _TAB_TITLE = _("User notifications")

    def get(self, request: HttpRequest):
        user = request.user
        form = UserNotificationForm(user=user, data=None)
        context = {
            "user": user,
            "form": form,
            TAB_TITLE_IDENTIFIER: self._TAB_TITLE,
        }
        context = BaseContext(request, context).context
        return render(request, self._TEMPLATE, context)

    def post(self, request: HttpRequest):
        user = request.user
        form = UserNotificationForm(user=user, data=request.POST)
        if form.is_valid():
            form.save()
            messages.success(
                request,
                _("Notifications edited")
            )
            return redirect("user:detail")
        context = {
            "user": user,
            "form": form,
            TAB_TITLE_IDENTIFIER: self._TAB_TITLE,
        }
        context = BaseContext(request, context).context
        return render(request, self._TEMPLATE, context)


class ContactView(LoginRequiredMixin, BaseModalFormView):
    def get(self, request: HttpRequest, id: str):
        """ Renders contact modal view of a users contact data

        Args:
            request (HttpRequest): The incoming request
            id (str): The user's id

        Returns:

        """
        user = get_object_or_404(User, id=id)
        form = UserContactForm(request.POST or None, instance=user, request=request)
        context = {
            "form": form,
        }
        context = BaseContext(request, context).context
        return render(request, self._TEMPLATE, context)


class TeamDetailModalView(LoginRequiredMixin, BaseModalFormView):
    def get(self, request: HttpRequest, id: str):
        """ Renders team data

        Args:
            request (HttpRequest): The incoming request
            id (str): The team's id

        Returns:

        """
        team = get_object_or_404(Team, id=id)
        form = TeamDataForm(request.POST or None, instance=team, request=request)
        context = {
            "form": form,
        }
        context = BaseContext(request, context).context
        return render(request, self._TEMPLATE, context)


class TeamIndexView(LoginRequiredMixin, BaseView):
    _TEMPLATE = "user/team/index.html"
    _TAB_TITLE = _("Teams")

    def get(self, request: HttpRequest):
        user = request.user
        context = {
            "teams": user.shared_teams,
            "tab_title": self._TAB_TITLE,
        }
        context = BaseContext(request, context).context
        return render(request, self._TEMPLATE, context)


@login_required_modal
@login_required
def new_team_view(request: HttpRequest):
    form = NewTeamModalForm(request.POST or None, request=request)
    return form.process_request(
        request,
        _("New team added"),
        redirect_url=reverse("user:team-index")
    )


@login_required_modal
@login_required
def edit_team_view(request: HttpRequest, id: str):
    team = get_object_or_404(Team, id=id)
    user_is_admin = team.is_user_admin(request.user)
    if not user_is_admin:
        raise Http404()
    form = EditTeamModalForm(request.POST or None, instance=team, request=request)
    return form.process_request(
        request,
        _("Team edited"),
        redirect_url=reverse("user:team-index")
    )


@login_required_modal
@login_required
def remove_team_view(request: HttpRequest, id: str):
    team = get_object_or_404(Team, id=id)
    user_is_admin = team.is_user_admin(request.user)
    if not user_is_admin:
        raise Http404()
    form = RemoveTeamModalForm(request.POST or None, instance=team, request=request)
    return form.process_request(
        request,
        _("Team removed"),
        redirect_url=reverse("user:team-index")
    )


@login_required_modal
@login_required
def leave_team_view(request: HttpRequest, id: str):
    team = get_object_or_404(Team, id=id)
    user = request.user

    is_user_team_member = team.users.filter(id=user.id).exists()
    if not is_user_team_member:
        messages.info(
            request,
            _("You are not a member of this team")
        )
        return redirect("user:team-index")

    form = LeaveTeamModalForm(request.POST or None, instance=team, request=request)
    return form.process_request(
        request,
        _("Left Team"),
        redirect_url=reverse("user:team-index")
    )