Subversion Repositories SmartDukaan

'''

Created on 06-Sept-2011

@author: Varun Gupta

Max Uses: 2000

A user can use the coupon only 2 times.

Nokia (All models, other than C2-03 & C2-06, from Rs.3000 to Rs.5000)  Rs.200 off

Nokia (All models above Rs.5000)    Rs.500 off

'''

from shop2020.thriftpy.model.v1.user.ttypes import PromotionException

from shop2020.model.v1.user.impl.PromotionRuleDataUtilities import get_coupon_usage_count, get_coupon_usage_count_by_user

from shop2020.clients.CatalogClient import CatalogClient

from shop2020.thriftpy.model.v1.user.ttypes import Discount

def execute(cart, coupon_code, args):

    #Allow only first 2000 users to use the coupon

    count_coupon_usage = get_coupon_usage_count(coupon_code)

    if count_coupon_usage >= 2000:

        raise PromotionException(112, 'This promotion is over.')

    #Allow a user to use the coupon only 5 times max.

    count_users_usage = get_coupon_usage_count_by_user(coupon_code, cart.userId)

    if count_users_usage > 1:

        raise PromotionException(111, 'This promotion is over.')

    discounts = []

    if cart.lines:

        total_selling_price = 0

        total_discounted_price = 0

        has_qualified_model = False

        for line in cart.lines:

            line.discountedPrice = line.actualPrice

            discount_value = 0

            if line.itemId not in (1590, 2014, 2063, 2035, 2036) and line.actualPrice > 2999 and not has_qualified_model:

                catalog_client = CatalogClient().get_client()

                item = catalog_client.getItem(line.itemId)

                if item.brand.lower() == 'nokia':

                    has_qualified_model = True

                    discount_value = 200 if line.actualPrice < 5001 else 500

                    line.discountedPrice = line.actualPrice - discount_value

            total_selling_price += line.actualPrice * line.quantity

            total_discounted_price += line.discountedPrice + (line.actualPrice * (line.quantity - 1))

            if discount_value > 0:

                discount = Discount()

                discount.cart_id = cart.id

                discount.item_id = line.itemId

                discount.discount = discount_value

                discount.quantity = 1

                discounts.append(discount)

        if has_qualified_model is False:

            raise PromotionException(115, 'This coupon is applicable only for selective handsets.')

        cart.totalPrice = total_selling_price

        cart.discountedPrice = total_discounted_price

    return cart, discounts

def getDiscountOnItem(item):

    discount_expressions = [

            '200 if item.brand == "Nokia" and item.sellingPrice > 2999 and item.sellingPrice < 5001 and item.id not in (1590, 2014, 2063, 2035, 2036) else None',

            '500 if item.brand == "Nokia" and item.sellingPrice > 5000 else None'

        ]

    for expression in discount_expressions:

        discount = eval(expression)

        if discount is not None:

            return discount

    return None