# -*- coding: utf-8 -*-

from __future__ import division

from django.conf import settings
from django.db import transaction
from django.shortcuts import render
from logit import logit

from account.models import SaleclerkInfo
from integral.models import SaleclerkIntegralIncomeExpensesInfo
from product.models import ProductCodeSubmitLogInfo, ProductInfo, ProductModelInfo
from utils.error.errno_utils import ProductModelStatusCode, ProductStatusCode, SaleclerkStatusCode
from utils.error.response_utils import response


def clerk_sale_oauth(request):
    unionid = request.GET.get('unionid', '')

    models = ProductModelInfo.objects.filter(status=True)
    models = [model.data for model in models]

    try:
        clerk = SaleclerkInfo.objects.get(unionid=unionid)
    except SaleclerkInfo.DoesNotExist:
        clerk = None

    return render(request, 'page/clerk_sale.html', {
        'domain': settings.DOMAIN,
        'models': models,
        'clerk_info': clerk and clerk.data,
    })


@logit
@transaction.atomic
def clerk_sale_submit_api(request):
    """ 店员信息提交 """
    clerk_id = request.POST.get('clerk_id', '')
    model_id = request.POST.get('model_id', '')
    code = request.POST.get('code', '')
    name = request.POST.get('name', '')
    sex = int(request.POST.get('sex', 1))
    age = int(request.POST.get('age', 1))
    phone = request.POST.get('phone', '')

    # 店员是否存在
    try:
        clerk = SaleclerkInfo.objects.select_for_update().get(clerk_id=clerk_id)
    except SaleclerkInfo.DoesNotExist:
        return response(SaleclerkStatusCode.CLERK_NOT_FOUND)

    # 店员是否激活
    if clerk.user_status != SaleclerkInfo.ACTIVATED:
        return response(SaleclerkStatusCode.CLERK_NOT_ACTIVATED)

    # 型号是否存在
    try:
        model = ProductModelInfo.objects.get(model_id=model_id)
    except ProductModelInfo.DoesNotExist:
        return response(ProductModelStatusCode.MODEL_NOT_FOUND)

    # 记录销售提交记录
    ProductCodeSubmitLogInfo.objects.create(
        model_id=model.model_id,
        model_name=model.model_name,
        code=code,
        franchiser_id=clerk.franchiser_id,
        clerk_id=clerk.clerk_id,
        consumer_name=name,
        consumer_sex=sex,
        consumer_age=age,
        consumer_phone=phone,
    )

    # 产品是否存在
    try:
        product = ProductInfo.objects.select_for_update().get(model_id=model_id, code=code)
    except ProductInfo.DoesNotExist:
        return response(ProductStatusCode.PRODUCT_NOT_FOUND)

    # 产品是否使用
    if product.code_status:
        return response(ProductStatusCode.PRODUCT_HAS_USED)

    # 产品使用
    product.code_status = True
    product.integral_status = True
    product.franchiser_id = clerk.franchiser_id
    product.clerk_id = clerk.clerk_id
    product.consumer_name = name
    product.consumer_sex = sex
    product.consumer_age = age
    product.consumer_phone = phone
    product.save()

    # 店员积分
    clerk.integral += product.integral
    clerk.save()

    # 店员积分记录
    SaleclerkIntegralIncomeExpensesInfo.objects.create(
        franchiser_id=clerk.franchiser_id,
        clerk_id=clerk.clerk_id,
        type=SaleclerkIntegralIncomeExpensesInfo.INCOME,
        code=code,
        integral=product.integral,
        left_integral=clerk.integral,
    )

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