import random

from django.contrib.auth.decorators import login_required
from django.http import HttpResponse
from django.shortcuts import render, redirect
from blog.factories import TopicFactory
from blog.models import Topic, Tag, Blogpost
from django.views.decorators.csrf import csrf_exempt

from markdownblog import settings


def viewblog(request) -> HttpResponse:
    return render(request, 'blog/index.html', {"debug": settings.DEBUG})


@login_required
@csrf_exempt
def order(request):
    if request.method == "POST":
        root_id = int(request.POST['rootID']) if request.POST['rootID'] != 'root_list' else None
        child_id = int(request.POST['childID'])

        child_topic = Topic.objects.get(pk=child_id)
        child_topic.rootTopic = Topic.objects.get(pk=root_id) if root_id is not None else None
        child_topic.save()

    context = {'roottopics': Topic.objects.all().filter(rootTopic=None)}
    return render(request, 'blog/order.html', context)


@login_required
def addpost(request) -> HttpResponse:
    if request.method == 'POST':
        title = request.POST['title']
        markdown = request.POST['markdown']

        tags = []

        if 'tags' in request.POST and request.POST['tags'] != '':
            tags_str = request.POST['tags'].split(" ")
            for tag in tags_str:
                tags.append(Tag.objects.filter(name=tag)[0])

        topicstr = request.POST['topic']
        topics = None if topicstr == "No topic" else Topic.objects.filter(name=topicstr)[0]

        new_post = Blogpost.objects.create(title=title, topics=topics)
        new_post.tags.set(tags)

    context = {'alltopics': Topic.objects.all().order_by('name').values()}
    return render(request, 'blog/addpost.html', context)


@login_required
def createmocks(request, objtype, n) -> HttpResponse:
    topics = TopicFactory.create_batch(n)

    for topic in topics:
        topic.save()

    while len(topics) > 1:
        child = random.choice(topics)
        topics.remove(child)
        child.rootTopic = random.choice(topics)
        child.save()

    print('Created ' + str(n) + ' mock topics.')
    return redirect("index")