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'''
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Created on 27-June-2012
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@author: Varun Gupta
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Max Uses: 200
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Samsung Galaxy Ace S5830i    Rs.401 off
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Samsung Galaxy Ace Duos S6802    Rs.401 off
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HTC One V T320e    Rs.512 off
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HTC Desire C A320e    Rs.762 off
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'''
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from shop2020.thriftpy.model.v1.user.ttypes import PromotionException
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from shop2020.model.v1.user.impl.PromotionRuleDataUtilities import get_coupon_usage_count
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from shop2020.thriftpy.model.v1.user.ttypes import Discount
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from shop2020.clients.UserClient import UserClient
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def execute(cart, coupon_code, args):
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    user_client = UserClient().get_client()
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    user = user_client.getUserByCartId(cart.id)
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    #Allow only first 2000 users to use the coupon
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    count_coupon_usage = get_coupon_usage_count(coupon_code)
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    if count_coupon_usage >= 200:
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        raise PromotionException(112, 'This promotion is over.')
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    discounts = []
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    if cart.lines:
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        total_selling_price = 0
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        total_discounted_price = 0
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        has_qualified_model = False
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        for line in cart.lines:
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            line.discountedPrice = line.actualPrice
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            discount_value = 0
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            if line.itemId in (6829, 7243, 7298):  #Samsung Galaxy Ace Duos S6802 & Galaxy Ace S5830i
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                has_qualified_model = True
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                if line.actualPrice:
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                    line.discountedPrice = round(line.actualPrice - 401)
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                    discount_value = 401
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            elif line.itemId == 4645:  #HTC One V T320e
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                has_qualified_model = True
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                if line.actualPrice:
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                    line.discountedPrice = round(line.actualPrice - 512)
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                    discount_value = 512
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            elif line.itemId in (6747, 7127):  #HTC Desire C A320e
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                has_qualified_model = True
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                if line.actualPrice:
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                    line.discountedPrice = round(line.actualPrice - 762)
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                    discount_value = 762
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            total_selling_price += line.actualPrice * line.quantity
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            total_discounted_price += line.discountedPrice * line.quantity
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            if discount_value > 0:
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                discount = Discount()
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                discount.cart_id = cart.id
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                discount.item_id = line.itemId
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                discount.discount = discount_value
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                discount.quantity = line.quantity
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                discounts.append(discount)
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        if has_qualified_model is False:
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            raise PromotionException(115, 'This coupon is applicable only for selective handsets.')
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        cart.totalPrice = total_selling_price
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        cart.discountedPrice = total_discounted_price
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    return cart, discounts
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def getDiscountOnItem(item):
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    return None