from django.conf import settings
from django.db import transaction
from django_logit import logit
from django_response import response

from mch.models import BrandInfo, DistributorInfo, SaleclerkInfo
from utils.error.errno_utils import ProductDistributorStatusCode, SaleclerkStatusCode


@logit
def salesman_detail(request):
  user_id = request.GET.get('user_id', '')

  try:
    salesman = SaleclerkInfo.objects.get(user_id=user_id, status=True)
  except SaleclerkInfo.DoesNotExist:
    return response(SaleclerkStatusCode.CLERK_NOT_FOUND)

  return response(200, 'Get Salesman Detail Success', '获取销售员信息成功', data=salesman.data)


@logit
@transaction.atomic
def salesman_register(request):
    """ 店员授权信息提交 """
    user_id = request.POST.get('user_id', '')
    brand_id = request.POST.get('brand_id') or settings.KODO_DEFAULT_BRAND_ID
    distributor_id = request.POST.get('distributor_id', '')
    unionid = request.POST.get('unionid', '')
    openid = request.POST.get('openid', '')
    phone = request.POST.get('phone', '')

    if SaleclerkInfo.objects.filter(clerk_phone=phone).exclude(unionid=unionid).exists():
        return response(SaleclerkStatusCode.CLERK_PHONE_ALREADY_EXISTS)

    try:
        distributor = DistributorInfo.objects.get(distributor_id=distributor_id)
    except DistributorInfo.DoesNotExist:
        return response(ProductDistributorStatusCode.DISTRIBUTOR_NOT_FOUND)

    fields = {
        'distributor_id': distributor_id,
        'user_id': user_id,
        'distributor_name': distributor.distributor_name,
        'clerk_name': request.POST.get('name', ''),
        'clerk_sex': int(request.POST.get('sex', 1)),
        'clerk_phone': phone,
        'openid': openid,
        'user_status': SaleclerkInfo.UNVERIFIED,
    }

    clerk, _ = SaleclerkInfo.objects.select_for_update().get_or_create(brand_id=brand_id, unionid=unionid, defaults=fields)

    return response(200, 'Submit Success', u'提交成功', {})