Subversion Repositories SmartDukaan

'''

Created on 13-Sep-2010

@author: rajveer

'''

from shop2020.logistics.service.impl import DataService

from shop2020.logistics.service.impl.DataService import Awb, AwbUpdate, Provider, \

     DeliveryEstimate, WarehouseAllocation, DestinationProviderAllocation,\

    PublicHolidays, ServiceableLocationDetails

from shop2020.thriftpy.logistics.ttypes import LogisticsServiceException,\

    DeliveryType

from shop2020.utils.Utils import log_entry, to_py_date, to_java_date

from elixir import session

import datetime, time

import sys

from shop2020.utils.caching.SimpleCaching import memoized

def initialize(dbname="logistics"):

    log_entry("initialize@DataAccessor", "Initializing data service")

    DataService.initialize(dbname)

def get_provider(provider_id):

    provider =  Provider.get_by(id=provider_id)

    return provider

def get_providers():

    providers = Provider.query.all()

    return providers 

'''

Cache the return values of the function for one day

'''

@memoized(86400)

def is_cod_allowed(destination_pin):

    try:

        sld = ServiceableLocationDetails.get_by(dest_pincode = destination_pin, cod = True)

    except Exception as ex:

        print "Unexpected error:", sys.exc_info()[0]

    if sld:

        return True

    else:

        return False

'''

Cache the return values of the function for one day

'''

@memoized(86400)

def get_logistics_estimation(destination_pin, item_selling_price, warehouse_location=None, type=DeliveryType.PREPAID):

    if warehouse_location is None:

        try:

            warehouse_location = WarehouseAllocation.get_by(pincode = destination_pin).primary_warehouse_location

        except:

            print "Unexpected error:", sys.exc_info()[0]

            raise LogisticsServiceException(101, "No Warehouse locations assigned to this pincode: " + destination_pin)

    provider = __get_logistics_provider_for_destination_pincode(type, destination_pin)

    if not provider:

        raise LogisticsServiceException(101, "No provider assigned for pincode: " + str(destination_pin) + \

                                        ", and warehouse location: " + str(warehouse_location))

#    query_provider = DestinationProviderAllocation.query.filter_by(destination_pin = destination_pin)

#    query_provider = query_provider.filter_by(warehouse_location = warehouse_location)

#    try:

#        if (item_selling_price <= 5000):

#            provider = query_provider.one().provider_less_amount

#        else:

#            provider = query_provider.one().provider_more_amount

#    except Exception as ex:

#        print ex

#        print "Unexpected error:", sys.exc_info()[0]

#        raise LogisticsServiceException(101, "No provider assigned for pincode: " + str(destination_pin) + \

#                                        ", and warehouse location: " + str(warehouse_location))

    query = DeliveryEstimate.query.filter_by(warehouse_location = warehouse_location)

    query = query.filter_by(destination_pin = destination_pin)

    query = query.filter_by(provider = provider)

    try:

        return query.first()

    except Exception as ex:

        print ex

        raise LogisticsServiceException(103, "No Logistics partner listed for this destination pincode and the primary warehouse")

'''

Cache the return values of the function for one day

'''

@memoized(86400)

def __get_logistics_provider_for_destination_pincode(type, destination_pin):

    try:

        sld = ServiceableLocationDetails.get_by(dest_pincode = destination_pin)

        if type == DeliveryType.PREPAID and sld.exp:

            provider = sld.provider

        if type == DeliveryType.COD and sld.cod:

            provider = sld.provider

    except Exception as ex:

        print "Unexpected error:", sys.exc_info()[0]

    return provider

def add_empty_AWBs(numbers, provider_id, type):

    for number in numbers:

        query = Awb.query.filter_by(awb_number = number, provider_id = provider_id)

        try:

            query.one()

        except:    

            awb = Awb()

            awb.awb_number = number

            awb.provider_id = provider_id

            awb.is_available = True

            awb.type = type

    session.commit()

def set_AWB_as_used(awb_number):

    query = Awb.query.filter_by(awb_number = awb_number)

    awb = query.one() 

    awb.is_available=False

    session.commit()

def get_empty_AWB(provider_id, type = DeliveryType.PREPAID):

    query = Awb.query.with_lockmode("update").filter_by(provider_id = provider_id, is_available = True)  #check the provider thing

    if type == DeliveryType.PREPAID:

        query = query.filter_by(type="Prepaid")

    if type == DeliveryType.COD:

        query = query.filter_by(type="COD")

    try:

        awb = query.first()

        awb.is_available = False

        session.commit()

        return awb.awb_number

    except:

        raise LogisticsServiceException(103, "Unable to get an AWB for the given Provider: " + str(provider_id))

def get_free_awb_count(provider_id, type):

    count = Awb.query.filter_by(provider_id = provider_id, is_available = True, type=type).count()

    if count == None:

        count = 0

    return count

def get_shipment_info(awb_number, provider_id):

    awb = Awb.get_by(awb_number = awb_number, provider_id = provider_id)

    query = AwbUpdate.query.filter_by(awb = awb)

    info = query.all()

    return info

'''

Cache the return values of the function for one day

'''

@memoized(86400)

def get_holidays(start_date, end_date):

    query = PublicHolidays.query

    if start_date != -1:

        query = query.filter(PublicHolidays.date >= to_py_date(start_date))

    if end_date != -1:

        query = query.filter(PublicHolidays.date <= to_py_date(end_date))

    holidays = query.all()

    holiday_dates = [to_java_date(datetime.datetime(*time.strptime(str(holiday.date), '%Y-%m-%d')[:3])) for holiday in holidays] 

    return holiday_dates

def close_session():

    if session.is_active:

        print "session is active. closing it."

        session.close()