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1976 varun.gupt 1 
'''
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Created on: May 24, 2011
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@author: Varun Gupta
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'''
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from shop2020.model.v1.user.impl.PromotionDataAccessors import initialize, create_promotion,\
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    generate_coupons_for_promotion, apply_coupon, track_coupon_usage, is_alive
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from shop2020.model.v1.user.impl.PromotionRuleDataUtilities import get_coupon_usage_count_by_user
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from shop2020.model.v1.user.impl import PromotionDataAccessors
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class PromotionServiceHandler:
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    def __init__(self, dbname='user', db_hostname='localhost'):
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        initialize(dbname, db_hostname)
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    def createPromotion(self, name, ruleExecutionSrc, startOn, endOn):
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        '''
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        Parameters:
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        - name
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        - ruleExecutionSrc
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        - startOn
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        - endOn
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        '''
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        try:
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            create_promotion(name, ruleExecutionSrc, startOn, endOn)
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        finally:
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            PromotionDataAccessors.close_session()
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    def getAllPromotions(self):
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        try:
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            pass
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        finally:
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            PromotionDataAccessors.close_session()
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    def getPromotionById(self, promotionId):
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        '''
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        Parameters:
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        - promotionId
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        '''
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        try:
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            pass
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        finally:
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            PromotionDataAccessors.close_session()
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    def generateCouponsForPromotion(self, promotionId, couponCode):
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        '''
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        Parameters:
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        - promotionId
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        - couponCode
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        '''
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        try:
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            generate_coupons_for_promotion(promotionId, couponCode)
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        finally:
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            PromotionDataAccessors.close_session()
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    def applyCoupon(self, couponCode, cartId):
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        '''
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        Parameters:
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        - couponCode
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        - cartId
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        '''
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        try:
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            print 'Calling apply_coupon'
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            return apply_coupon(couponCode, cartId)
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        finally:
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            PromotionDataAccessors.close_session()
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    def trackCouponUsage(self, couponCode, transactionId, userId):
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        '''
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        Parameters:
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        - couponCode
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        - transactionId
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        - userId
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        '''
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        try:
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            track_coupon_usage(couponCode, transactionId, userId)
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        finally:
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            PromotionDataAccessors.close_session()
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    def getCouponUsageCountByUser(self, couponCode, userId):
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        '''
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        Parameters:
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        - couponCode
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        - userId
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        '''
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        try:
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            return get_coupon_usage_count_by_user(couponCode, userId)
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        finally:
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            PromotionDataAccessors.close_session()
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    def isAlive(self, ):
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        """
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        For checking weather service is active alive or not. It also checks connectivity with database
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        """
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        try:
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            return is_alive()
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        finally:
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            PromotionDataAccessors.close_session()