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varun.gupt |
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'''
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Created on 06-Dec-2011
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@author: varungupta
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'''
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'''
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Created on 24-Oct-2011
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@author: Varun Gupta
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raghvendra.saboo@gmail.com will get Rs.250 off on one transaction.
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'''
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from shop2020.thriftpy.model.v1.user.ttypes import PromotionException
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from shop2020.clients.UserClient import UserClient
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from shop2020.model.v1.user.impl.PromotionRuleDataUtilities import get_coupon_usage_count_by_user
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from shop2020.thriftpy.model.v1.user.ttypes import Discount
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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.getUserById(cart.userId)
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if not user.email.lower().strip() in ('raghvendra.saboo@gmail.com'):
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raise PromotionException(111, 'You are not allowed to use this coupon')
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#Allow only first 1000 users to use the coupon
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count_coupon_usage = get_coupon_usage_count_by_user(coupon_code, cart.userId)
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if count_coupon_usage > 0:
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raise PromotionException(112, 'You have already used the coupon.')
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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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available_discount = 250
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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 available_discount > 0:
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if line.actualPrice < available_discount:
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line.discountedPrice = 0
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discount_value = line.actualPrice
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available_discount -= line.actualPrice
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else:
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line.discountedPrice = line.actualPrice - available_discount
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discount_value = available_discount
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available_discount = 0
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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 = 1
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discounts.append(discount)
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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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