from django.shortcuts import render
from django.http import HttpResponse, JsonResponse
from django.views.decorators.csrf import csrf_exempt
from django.apps import apps
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)
    results = []
    for o in notices:
        result = dict()
        result['id'] = o.id
        result['type'] = o.type
        result['content'] = o.content
        result['added'] = o.added.strftime("%Y-%m-%d %H:%M:%S")
        results.append(result)
    return JsonResponse({'status': 'success', 'message': results}, safe=False)


@csrf_exempt
@polls_login_required
def notice_top(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['type'] = o.type
        result['content'] = o.content
        result['added'] = o.added.strftime("%Y-%m-%d %H:%M:%S")
        results.append(result)
    return JsonResponse({'status': 'success', 'message': 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'})


@csrf_exempt
@polls_login_required
def detail_notice(request, notice_id):
    if request.method == 'GET':
        return HttpResponse(status=405)
    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)
        results = dict()
        results['id'] = notice.id
        results['category'] = notice.type
        results['content'] = notice.content
        results['app'] = notice.app
        results['model'] = notice.model
        results['field'] = notice.field
        results['record_id'] = notice.record_id
        results['record_pass_value'] = notice.record_pass_value
        results['record_reject_value'] = notice.record_reject_value
        results['added'] = notice.added.strftime("%Y-%m-%d %H:%M:%S")
        result['updated'] = notice.updated.strftime("%Y-%m-%d %H:%M:%S")
        return JsonResponse({'status': 'success', 'message': results})
    except ObjectDoesNotExist:
        return JsonResponse({'status': 'error', 'message': '通知ID错误'})


@csrf_exempt
@polls_login_required
def reply_notice(request):
    if request.method == 'GET':
        return HttpResponse(status=405)
    id = request.user.id
    notice_id = request.POST.get('notice_id')
    if not notice_id:
        return JsonResponse({'status': 'error', 'message': '通知ID错误'})
    try:
        notice = Notice.objects.get(id=notice_id)
        ReplyModel = apps.get_model(notice.app, notice.model)
        m = ReplyModel.objects.get(pk=notice.record_id)
        setattr(m, notice.field, notice.record_value)
        m.save(update_fields=[notice.field])
        return JsonResponse({'status': 'success'})
    except ObjectDoesNotExist:
        return JsonResponse({'status': 'error', 'message': '通知ID错误'})