from django.shortcuts import render

# Create your views here.
from django.http import HttpResponse
from django.views.decorators.http import require_http_methods
from przyrost.models import *
from django.http import JsonResponse
from django.core import serializers
import json
from django.views.decorators.csrf import csrf_exempt


def index(request, path=''):
    """
    Renders the Angular2 SPA
    """
    return render(request, 'home.html')



@csrf_exempt
@require_http_methods(["POST", "GET", "DELETE"])
def Category_Handler(request):
    def Category_POST():
        """Expects {"name":"name"}"""
        req = json.loads(request.body)
        i = Category.objects.create(name=req['name'])
        i.save()
        return JsonResponse(serializers.serialize("python", [i]), safe=False)
    def Category_GET():
        all = Category.objects.all()
        s = serializers.serialize("json", all)
        return JsonResponse(s,safe=False)
    def Category_DELETE():
        req = json.loads(request.body)
        Category.objects.get(id=req['id']).delete();
        return JsonResponse({"status": "ok"})
    return {"GET":Category_GET, "POST":Category_POST, "DELETE":Category_DELETE}[request.method]()

@csrf_exempt
@require_http_methods(["POST", "GET", "DELETE"])
def Post_Handler(request):
    def Post_POST():
        """Expects {"text":"tesxt", "category":category_id, "authorNickname":"blalbal"}"""
        req = json.loads(request.body)
        category = Category.objects.get(pk=int(req['category_id']))
        p = Post.objects.create(
             created_at=timezone.datetime.now(),
             category=category,
             text=req['text'],
             author_anonim_name = req['authorNickname'] if req['authorNickname'] else None
         )
        p.save()
        return JsonResponse(serializers.serialize("python", [p]), safe=False)
    def Post_GET():
        id=request.GET.get('id', None)
        if id:
            post = Post.objects.get(pk=id)
            res = serializers.serialize('python', [post])
            return JsonResponse(res, safe=False)
        else:
            page = request.GET.get('page',0)
            posts = Post.getPage(page)
            res = serializers.serialize('python',posts)
            return JsonResponse(res, safe=False)
    def Post_DELETE():
        id = request.GET.get("id", None)
        if id:
            o:Post=Post.objects.filter(lambda d: d.id == id)[0]
            o.delete()

    return {"GET":Post_GET, "POST":Post_POST, "DELETE":Post_DELETE}[request.method]()

@csrf_exempt
@require_http_methods(["POST", "GET", "DELETE"])
def Comments_Handler(request):
    def Comments_POST():
        """Expects {"text":"text", "author_id"=12, "unregistered_author"="mamam", "post_id"=12 }"""
        req = json.loads(request.body)
        post = Post.objects.get(pk=int(req['post_id']))
       # author = User.objects.get(pk=int(req['author_id']))
        p = Comment.objects.create(
            post =post,
            unregistered_author=req['unregistered_author'],
            text=req['text']
        )
        p.save()
        ser = serializers.serialize("python" , [p])
        return JsonResponse(ser, safe=False)
    def Comments_GET():
        entry = Post.objects.get(pk=request.GET.get('post',0))
        comments = Comment.objects.filter(post=entry)

        return JsonResponse(serializers.serialize("python",comments ), safe=False)
    def Comments_DELETE():
        pass

    return {"GET":Comments_GET, "POST":Comments_POST, "DELETE":Comments_DELETE}[request.method]()

@csrf_exempt
@require_http_methods(["POST", "GET", "DELETE"])
def Menu_Handler(request):
    def Menu_POST():
        """Expects {"text":"text", "link":"link"}"""
        req = json.loads(request.body)
       # author = User.objects.get(pk=int(req['author_id']))
        p = MenuEntry.objects.create(
            link = req['link'],
            alt=req['text']
        )
        p.save()
        ser = serializers.serialize("python" , [p])
        return JsonResponse(ser, safe=False)
    def Menu_GET():
        menu = MenuEntry.objects.all()
        return JsonResponse(serializers.serialize("python", menu ), safe=False)
    def Menu_DELETE():
        req = json.loads(request.body)
        MenuEntry.objects.get(id=req['id']).delete()
        return JsonResponse({"status":"ok"})

    return {"GET":Menu_GET, "POST":Menu_POST, "DELETE":Menu_DELETE}[request.method]()