import random

import string

from django.db import transaction

from django.shortcuts import render, redirect

import haikunator

from .models import Room

def about(request):

return render(request, "chat/about.html")

def new_room(request):

"""

Randomly create a new room, and redirect to it.

"""

new_room = None

while not new_room:

with transaction.atomic():

label = haikunator.haikunate()

if Room.objects.filter(label=label).exists():

continue

new_room = Room.objects.create(label=label)

return redirect(chat_room, label=label)

def chat_room(request, label):

"""

Room view - show the room, with latest messages.

The template for this view has the WebSocket business to send and stream

messages, so see the template for where the magic happens.

"""

# If the room with the given label doesn't exist, automatically create it

# upon first visit (a la etherpad).

room, created = Room.objects.get_or_create(label=label)

# We want to show the last 50 messages, ordered most-recent-last

messages = reversed(room.messages.order_by('-timestamp')[:50])

return render(request, "chat/room.html", {

'room': room,

'messages': messages,

})