app/booking/routes.py

from datetime import datetime, timedelta

from flask import flash, redirect, render_template, request, url_for, current_app
from flask_login import current_user, login_user, logout_user, login_required
from werkzeug.urls import url_parse

from app import db
from app.booking import bp
from app.booking.decorators import check_max_booking
from app.booking.forms import BookingForm
from app.email import send_email
from app.jenkins_request import handle_booking_job, delete_booking_job
from app.models import Booking, BookingStatus
from app.user.decorators import check_confirmed, check_sshkey

@bp.route('/newbooking', methods=['GET', 'POST'])
@login_required
@check_confirmed
@check_sshkey
@check_max_booking
def newbooking():
  form = BookingForm(current_user.email)
  if current_user.confirmed is False:
    flash('Your mail address is not confirmed yet. Please confirm it to access full functionality.', 'error')
  if current_user.ssh_public_key is None:
    flash('Please register your SSH Public Key in order to be able to make a new booking!', 'error')
  if form.validate_on_submit():
    scenario = form.scenario.data
    booking_length = int(form.booking_length.data)
    current_datetime = datetime.utcnow()
    created_on = current_datetime.isoformat()
    updated_on = current_datetime.isoformat()
    expires_on = (current_datetime + timedelta(days=booking_length)).isoformat()
    booking = Booking(user_id=current_user.id,
                      stack=form.stack.data,
                      status_id=BookingStatus.query.filter_by(status_text='new').first().id,
                      scenario=scenario,
                      booking_length=booking_length,
                      created_on=created_on,
                      updated_on=updated_on,
                      expires_on=expires_on)
    db.session.add(booking)
    db.session.flush()
    handle_booking_job(booking.id, scenario)
    db.session.commit()
    bookings = Booking.query.filter_by(user_id=current_user.id).order_by(Booking.created_on.desc())
    flash('Your booking is now registered and will be acted upon.')
    return redirect(url_for('booking.bookings'))
  elif request.method == 'GET':
    form.email.data = current_user.email
  return render_template('booking/newbooking.html', title='[nolabs] | New Booking', form=form)

@bp.route('/cancelbooking/<booking_id>', methods=['GET', 'POST'])
@login_required
@check_confirmed
@check_sshkey
def cancel_booking(booking_id):
  current_booking = Booking.query.filter_by(id=booking_id).first()
  if BookingStatus.query.filter_by(id=current_booking.status_id).first().status_text == 'new':
    current_booking.status_id = BookingStatus.query.filter_by(status_text='cancelled').first().id
    flash('Your booking is now cancelled!', 'info')
  else:
    delete_booking_job(booking_id, current_booking.scenario)
    current_booking.status_id = BookingStatus.query.filter_by(status_text='expired').first().id
    flash('Your booking is now being deleted!', 'info')
  db.session.commit()
  bookings = Booking.query.filter_by(user_id=current_user.id).order_by(Booking.created_on.desc())
  return redirect(url_for('booking.bookings'))

@bp.route('/bookings')
@login_required
@check_confirmed
@check_sshkey
def bookings():
  if current_user.confirmed is False:
    flash('Your mail address is not confirmed yet. Please confirm it to access full functionality.', 'error')
  if current_user.ssh_public_key is None:
    flash('Please register your SSH Public Key in order to be able to make a new booking!', 'error')
  page = request.args.get('page', 1, type=int)
  booking_status_id_text = dict()
  for k, v in BookingStatus.query.with_entities(BookingStatus.id, BookingStatus.status_text).all():
    booking_status_id_text[k] = v
  bookings = Booking.query.filter_by(user_id=current_user.id).order_by(Booking.created_on.desc()). \
    paginate(page, current_app.config['BOOKINGS_PER_PAGE'], False)
  next_url = url_for('booking.bookings', page=bookings.next_num) \
    if bookings.has_next else None
  prev_url = url_for('booking.bookings', page=bookings.prev_num) \
    if bookings.has_prev else None
  return render_template('booking/bookings.html', title='[nolabs] | My Bookings', user=current_user,
   bookings=bookings.items, booking_status_id_text=booking_status_id_text, next_url=next_url, prev_url=prev_url)