from django.shortcuts import render
from django.http import HttpResponse, JsonResponse
from django.views.decorators.csrf import csrf_exempt
from django.forms.models import model_to_dict
import datetime

from polls.decorators import polls_login_required
from polls.models import Task, TaskAddition
from django.core.exceptions import ObjectDoesNotExist


@csrf_exempt
@polls_login_required
def tasks(request):
    if request.method == 'POST':
        return HttpResponse(status=405)
    id = request.user.id
    tasks = Task.objects.filter(created_by__id=id)
    results = []
    for o in tasks:
        result = dict()
        result['id'] = o.id
        m = []
        for g in o.groups:
            n = model_to_dict(g, ['id', 'name'])
            m.append(n)
        result['groups'] = m
        result['added'] = o.added.strftime("%Y-%m-%d %H:%M:%S")
        results.append(result)
    return JsonResponse(results, safe=False)


@csrf_exempt
@polls_login_required
def create_task(request):
    if request.method == 'GET':
        return HttpResponse(status=405)
    user_id = request.user.id
    content = request.POST.get('content')
    if not content:
        return JsonResponse({'status': 'error', 'message': '内容不能为空'})
    groups = request.POST.getlist('groups',[])
    task = Task.objects.create(created_by__id=user_id, content=content)
    task.add_groups(groups)
    url = request.POST.get('url')
    file = request.FILES.get('file')
    picture = request.FILES.get('picture')
    if not url:
        urlAddtion = TaskAddition.objects.create(task=task,category=0, url=url)
    if not file:
        fileAddtion = TaskAddition.objects.create(task=task,category=1, file=file)
    if not picture:
        pictureAddtion = TaskAddition.objects.create(task=task,category=2, image=picture)
    return JsonResponse({'status': 'success'})