import json

from django.core.urlresolvers import reverse

from django.http import Http404, HttpResponse

from django.shortcuts import render, get_object_or_404, redirect

from django.template import loader, Context

from django.contrib.auth.decorators import login_required

from django.contrib.sites.models import Site

from symposion.schedule.forms import SlotEditForm

from symposion.schedule.models import Schedule, Day, Slot, Presentation

from symposion.schedule.timetable import TimeTable

def fetch_schedule(slug):

    qs = Schedule.objects.all()

    if slug is None:

        if qs.count() > 1:

            raise Http404()

        schedule = next(iter(qs), None)

        if schedule is None:

            raise Http404()

    else:

        schedule = get_object_or_404(qs, section__slug=slug)

    return schedule

def schedule_conference(request):

    schedules = Schedule.objects.filter(published=True, hidden=False)

    sections = []

    for schedule in schedules:

        days_qs = Day.objects.filter(schedule=schedule)

        days = [TimeTable(day) for day in days_qs]

        sections.append({

            "schedule": schedule,

            "days": days,

        })

    ctx = {

        "sections": sections,

    }

    return render(request, "schedule/schedule_conference.html", ctx)