from django.conf import settings
from django.shortcuts import render, redirect
from django.utils import timezone
from ..decorators import bceid_required
from ..models import BceidUser
from ..utils.user_response import get_responses_from_db, get_responses_from_db_grouped_by_steps, get_responses_from_session, copy_session_to_db


@bceid_required
def serve(request, path):
    if path[0:2] == 'f/':
        path = path[2:0]
    if (len(path) > 4 and path[-5:] != '.html') or len(path) == 0:
        path += '/index.html'
    if path[:1] == '/':
        path = path[1:]
    return render(request, path)


def intro(request):
    return render(request, 'intro.html', context={'hide_nav': True})


@bceid_required
def preview(request, form):
    """
    View showing template preview of rendered form
    """

    return render(request, 'preview/%s.html' % form)


def login(request):
    if not request.session.get('fake-bceid-guid'):
        return redirect(settings.FORCE_SCRIPT_NAME[:-1] + '/bceid')
    else:
        guid = request.bceid_user.guid
        user, created = BceidUser.objects.get_or_create(user_guid=guid)

        user.last_login = timezone.now()
        user.save()

        copy_session_to_db(request, user)

        return redirect(settings.FORCE_SCRIPT_NAME[:-1] + '/overview')


def logout(request):
    request.session.flush()
    return redirect(settings.FORCE_SCRIPT_NAME[:-1] + '/intro')


@bceid_required
def form(request, form, step):
    """
    View rendering form/step combo
    """
    template = '%s/%s.html' % (form, step)
    user = BceidUser.objects.get(user_guid=request.bceid_user.guid)
    if step == "11_review":
        responses_dict = get_responses_from_db_grouped_by_steps(user)
    else:
        responses_dict = get_responses_from_db(user)
    return render(request, template_name=template, context=responses_dict)


@bceid_required
def dashboard(request):
    return render(request, 'dashboard.html')


@bceid_required
def overview(request):
    user = BceidUser.objects.get(user_guid=request.bceid_user.guid)
    responses_dict = get_responses_from_db_grouped_by_steps(user)
    # To Show whether user has started to respond questions in each step
    started_dict = {}
    for step, lst in responses_dict.items():
        if not lst:
            started_dict[step] = "Not started"
        else:
            started_dict[step] = "Started"
    return render(request, 'overview.html', context=started_dict)


def prequalification(request, step):
    template = 'prequalification/step_%s.html' % step

    if not request.bceid_user.is_authenticated:
        responses_dict = get_responses_from_session(request)
    else:
        user = BceidUser.objects.get(user_guid=request.bceid_user.guid)
        responses_dict = get_responses_from_db(user)

    return render(request, template_name=template, context=responses_dict)


def index(request):
    return render(request, 'index.html')