import datetime
import json

from django.contrib.admin.views.decorators import staff_member_required
from django.http import HttpResponse
from django.shortcuts import render, redirect

from coord.scheduled_tasks import nightly_check_active_status
from coord.utils.rollover import RolloverForm, execute_rollover

from coord.backup.backup_helpers import get_export_dict


@staff_member_required
def settings(request):
    return render(request, 'admin/settings_index.html')


@staff_member_required
def rollover(request):
    if request.method == 'POST':
        form = RolloverForm(request.POST)
        if form.is_valid():
            execute_rollover(form.cleaned_data['exit_date'])
            return redirect('settings:index')

    form = RolloverForm()
    return render(request, 'admin/rollover_form.html', context={'form': form})


@staff_member_required
def nightly_task(request):
    nightly_check_active_status()
    return redirect('settings:index')


@staff_member_required
def export(request):
    date = datetime.date.today().strftime("%Y-%m-%d")
    response = HttpResponse(json.dumps(get_export_dict()))
    response['Content-Disposition'] = f'attachment; filename=busportal_export-{date}.json'
    return response