from django.utils.translation import ugettext_lazy as _

from django.contrib.sites.models import Site
from django.contrib import messages
from django.contrib.auth.decorators import login_required
from django.shortcuts import render, redirect
from django.urls import reverse
from django.core.mail import send_mail
from django.template.loader import get_template, render_to_string
from django.conf import settings

from events.models.profiles import Team, UserProfile, Member, Category
from events.models.events import Event, Place, Attendee
from events.forms import SendNotificationsForm, UserForm, ConfirmProfileForm

from .utils import get_nearby_teams

import datetime
import simplejson

@login_required
def setup_1_confirm_profile(request):
    user = request.user
    profile = request.user.profile

    if request.method == 'GET':
        user_form = UserForm(instance=user)
        profile_form = ConfirmProfileForm(instance=profile)
        context = {
            'user': user,
            'profile': profile,
            'user_form': user_form,
            'profile_form': profile_form,
        }
        return render(request, 'get_together/new_user/setup_1_confirm_profile.html', context)
    elif request.method == 'POST':
        user_form = UserForm(request.POST, instance=user)
        profile_form = ConfirmProfileForm(request.POST, instance=profile)
        if user_form.is_valid() and profile_form.is_valid():
            saved_user = user_form.save()
            profile_form.save()
            if saved_user.email is not None and saved_user.email != '' and not saved_user.account.is_email_confirmed:
                # Call the view to trigger sending a confirmation email, but ignore it's response
                user_send_confirmation_email(request)
            return redirect('setup-2-pick-categories')
    else:
        return redirect('home')


@login_required
def setup_2_pick_categories(request):
    user = request.user
    profile = request.user.profile

    if request.method == 'GET':
        categories = Category.objects.all()
        context = {
            'user': user,
            'profile': profile,
            'categories': categories,
        }
        return render(request, 'get_together/new_user/setup_2_pick_categories.html', context)
    elif request.method == 'POST':
        for entry in request.POST:
            if entry.startswith('category_'):
                category_id = entry.split('_')[1]
                try:
                    profile.categories.add(category_id)
                except:
                    pass
        return redirect('setup-3-find-teams')
    else:
        return redirect('home')

@login_required
def setup_3_find_teams(request):
    user = request.user
    profile = request.user.profile
    if request.method == 'GET':
        teams = get_nearby_teams(request)
        if (teams.count() < 1):
            return redirect('setup-complete')
        context = {
            'user': user,
            'profile': profile,
            'teams': teams,
        }
        return render(request, 'get_together/new_user/setup_3_find_teams.html', context)
    elif request.method == 'POST':
        for entry in request.POST:
            if entry.startswith('team_'):
                team_id = entry.split('_')[1]
                try:
                    Member.objects.get_or_create(team_id=team_id, user=profile, defaults={'role': Member.NORMAL})
                except Member.MultipleObjectsReturned:
                    pass
        return redirect('setup-4-attend-events')
    else:
        return redirect('home')

@login_required
def setup_4_attend_events(request):
    user = request.user
    profile = request.user.profile
    if request.method == 'GET':
        events = Event.objects.filter(team__in=profile.memberships.all(), end_time__gte=datetime.datetime.now())
        if (events.count() < 1):
            return redirect('setup-complete')
        context = {
            'user': user,
            'profile': profile,
            'events': events,
        }
        return render(request, 'get_together/new_user/setup_4_attend_events.html', context)
    elif request.method == 'POST':
        for entry in request.POST:
            if entry.startswith('event_'):
                event_id = entry.split('_')[1]
                try:
                    Attendee.objects.get_or_create(event_id=event_id, user=profile, defaults={'role': Attendee.NORMAL, 'status': Attendee.YES})
                except Attendee.MultipleObjectsReturned:
                    pass
        return redirect('setup-complete')
    else:
        return redirect('home')

@login_required
def setup_complete(request):
    messages.add_message(request, messages.SUCCESS, message=_('Your setup is complete, welcome to GetTogether!'))
    request.user.account.setup_complete()
    return redirect('home')

# These views are for confirming a user's email address before sending them mail
@login_required
def user_send_confirmation_email(request):
    confirmation_request = request.user.account.new_confirmation_request()
    site = Site.objects.get(id=1)
    confirmation_url = "https://%s%s" % (site.domain, reverse('confirm-email', kwargs={'confirmation_key':confirmation_request.key}))

    context = {
        'confirmation': confirmation_request,
        'confirmation_url': confirmation_url,
    }
    email_subject = '[GetTogether] Confirm email address'
    email_body_text = render_to_string('get_together/emails/confirm_email.txt', context, request)
    email_body_html = render_to_string('get_together/emails/confirm_email.html', context, request)
    email_recipients = [request.user.email]
    email_from = getattr(settings, 'DEFAULT_FROM_EMAIL', 'noreply@gettogether.community')
    send_mail(
        subject=email_subject,
        message=email_body_text,
        from_email=email_from,
        recipient_list=email_recipients,
        html_message=email_body_html
    )
    return render(request, 'get_together/new_user/sent_email_confirmation.html', context)

@login_required
def user_confirm_email(request, confirmation_key):
    if request.user.account.confirm_email(confirmation_key):
        messages.add_message(request, messages.SUCCESS, message=_('Your email address has been confirmed.'))
        return redirect('confirm-notifications')
    else:
        return render(request, 'get_together/new_user/bad_email_confirmation.html')

@login_required
def user_confirm_notifications(request):
    if request.method == 'GET':
        form = SendNotificationsForm(instance=request.user.profile)
        context = {
            'notifications_form': form
        }
        return render(request, 'get_together/new_user/confirm_notifications.html', context)
    elif request.method == 'POST':
        form = SendNotificationsForm(request.POST, instance=request.user.profile)
        if form.is_valid():
            form.save()
            return redirect('home')