from datetime import date, datetime, timedelta
import json

from django.utils import timezone
from django.shortcuts import render
from django.db.models import Q
from django.utils.html import mark_safe
from django.conf import settings

from . import models
from . import tasks
from ..signalbot.rpc import send_reaction
from .utils import render_to_json


def index(request):
    context = {}
    week, archive = models.Item.public()
    context['items'] = week
    context['archive'] = archive.exists()
    return render(request, 'index.html', context)


def archive(request):
    context = {}
    qs = models.Item.public()
    week, archive = models.Item.public()
    context['items'] = archive
    return render(request, 'archive.html', context)


def item(request, id):
    context = {}
    item = models.Item.objects.get(id=id)
    context['item'] = item
    qs = item.comments.order_by('created')
    if not request.user.is_staff:
        q = ~Q(published=None)
        if request.user.is_authenticated:
            q |= Q(user=request.user)
        if request.session and request.session.session_key:
            q |= Q(session_key=request.session.session_key)
        qs = qs.filter(q)
    comments = []
    for comment in qs:
        comments.append({
            "id": comment.id,
            "name": comment.name,
            "date": comment.date,
            "text": comment.text,
            "published": comment.is_published,
        })
    context['comments'] = mark_safe(json.dumps(comments))
    user = {}
    if request.user.is_staff:
        user['is_moderator'] = True
    if request.user.is_authenticated:
        user['username'] = request.user.username

    context['user'] = mark_safe(json.dumps(user))
    request.session['item'] = id
    return render(request, 'item.html', context)


def comment(request):
    response = {}
    data = json.loads(request.body)
    comment = models.Comment()
    comment.item = models.Item.objects.get(id=data['item'])
    if request.user.is_authenticated:
        comment.user = request.user
        if comment.user.has_perm('app.item.can_post_comment'):
            comment.published = timezone.now()
    else:
        comment.name = data['name']
        comment.email = data['email']
        comment.session_key = request.session.session_key
    comment.text = data['text']
    comment.save()
    if not comment.published:
        link = request.build_absolute_uri(comment.item.get_absolute_url())
        tasks.notify_moderators.delay(comment.id, link)
    response = comment.json()
    return render_to_json(response)


def publish_comment(request):
    response = {}
    data = json.loads(request.body)
    if request.user.is_staff:
        comment = models.Comment.objects.get(id=data['comment'])
        comment.published = timezone.now()
        comment.save()
        if comment.data.get("moderator_ts"):
            account = settings.SIGNAL_ACCOUNT
            group = settings.SIGNAL_MODERATORS_GROUP
            send_reaction(account, comment.data["moderator_ts"], "🎉", group=group)
        response['status'] = 'ok'
    else:
        response['error'] = 'permission denied'
    return render_to_json(response)