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

from polls.decorators import polls_login_required
from polls.models import Notice
from django.core.exceptions import ObjectDoesNotExist

@csrf_exempt
@polls_login_required
def notices(request):
    if request.method == 'POST':
        return HttpResponse(status=405)
    id = request.user.id
    notices = Notice.objects.filter(user__id=id,is_read=False)[:10]
    results = []
    for o in notices:
        result = dict()
        result['id'] = o.id
        result['content'] = o.content
        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 read_notice(request):
    if request.method == 'GET':
        return HttpResponse(status=405)
    id = request.user.id
    notice_id = request.POST.get('notice')
    if not notice_id:
        return JsonResponse({'status': 'error', 'message': '通知ID错误'})
    try:
        notice = Notice.objects.get(id=notice_id)
        notice.is_read = True
        notice.save()
        return JsonResponse({'status': 'success'})
    except ObjectDoesNotExist:
        return JsonResponse({'status': 'error', 'message': '通知ID错误'})