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, \

    PublicHolidays, ServiceableLocationDetails, PickupStore

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

    DeliveryType

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

from sqlalchemy.sql import or_

from elixir import session

import datetime, time

import sys

import logging

from shop2020.clients.CatalogClient import CatalogClient

logging.basicConfig(level=logging.DEBUG)

warehouse_allocation_cache = {}

serviceable_location_cache = {}

delivery_estimate_cache = {}

'''

This class is for only data transfer. Never used outside this module.

'''

class _DeliveryEstimateObject:

    def __init__(self, delivery_time, delivery_delay, provider_id, codAllowed, otgAvailable):

        self.delivery_time = delivery_time

        self.delivery_delay = delivery_delay

        self.provider_id = provider_id

        self.codAllowed = codAllowed

        self.otgAvailable = otgAvailable

def initialize(dbname="logistics", db_hostname="localhost"):

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

    DataService.initialize(dbname, db_hostname)

    print "Starting cache population at: " + str(datetime.datetime.now())

    __cache_warehouse_allocation_table()

    __cache_serviceable_location_details_table()

    __cache_delivery_estimate_table()

    close_session()

    print "Done cache population at: " + str(datetime.datetime.now())

def __cache_delivery_estimate_table():

    delivery_estimates = DeliveryEstimate.query.all()

    for delivery_estimate in delivery_estimates:

        delivery_estimate_cache[delivery_estimate.destination_pin, delivery_estimate.provider_id]\

        =delivery_estimate.delivery_time, delivery_estimate.delivery_delay

def __cache_serviceable_location_details_table():

    serviceable_locations = ServiceableLocationDetails.query.filter(or_("exp!=0","cod!=0"))

    for serviceable_location in serviceable_locations:

        try:

            provider_pincodes = serviceable_location_cache[serviceable_location.provider_id]

        except:

            provider_pincodes = {}

            serviceable_location_cache[serviceable_location.provider_id] = provider_pincodes 

        provider_pincodes[serviceable_location.dest_pincode] = serviceable_location.dest_code, serviceable_location.exp, serviceable_location.cod, serviceable_location.otgAvailable

def __cache_warehouse_allocation_table():

    warehouse_allocations = WarehouseAllocation.query.all()

    for warehouse_allocation in warehouse_allocations:

        warehouse_allocation_cache[warehouse_allocation.pincode]=warehouse_allocation.primary_warehouse_location

def get_provider(provider_id):

    provider =  Provider.get_by(id=provider_id)

    return provider

def get_providers():

    providers = Provider.query.filter_by(isActive = 1).all()

    return providers 

def get_logistics_estimation(destination_pin, item_selling_price):

    logging.info("Getting logistics estimation for pincode:" + destination_pin )

    provider_id, codAllowed, otgAvailable = __get_logistics_provider_for_destination_pincode(destination_pin, item_selling_price)

    if not provider_id:

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

    try:

        delivery_time = delivery_estimate_cache[destination_pin, provider_id][0]

        delivery_delay = delivery_estimate_cache[destination_pin, provider_id][1]

        delivery_estimate = _DeliveryEstimateObject(delivery_time, delivery_delay, provider_id, codAllowed, otgAvailable)

        return delivery_estimate

    except Exception as ex:

        print ex

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

def __get_logistics_provider_for_destination_pincode(destination_pin, item_selling_price):

    if item_selling_price >= 5000 and item_selling_price <= 10000 and serviceable_location_cache.get(6).has_key(destination_pin):

        dest_code, exp, iscod, otgAvailable = serviceable_location_cache.get(6).get(destination_pin)

        iscod = iscod and item_selling_price <= 25000

        otgAvailable = otgAvailable and item_selling_price >= 2000

        return 6, iscod, otgAvailable

    if serviceable_location_cache.get(3).has_key(destination_pin):

        dest_code, exp, iscod, otgAvailable = serviceable_location_cache.get(3).get(destination_pin)

        iscod = iscod and item_selling_price <= 25000

        otgAvailable = otgAvailable and item_selling_price >= 2000

        return 3, iscod, otgAvailable

    if serviceable_location_cache.get(1).has_key(destination_pin):

        dest_code, exp, iscod, otgAvailable = serviceable_location_cache.get(1).get(destination_pin)

        iscod = iscod and item_selling_price <= 9600

        otgAvailable = otgAvailable and item_selling_price >= 2000

        return 1, iscod, otgAvailable

    else:

        return None, False    

def get_destination_code(providerId, pinCode):

    serviceableLocationDetail = ServiceableLocationDetails.query.filter_by(provider_id = providerId, dest_pincode = pinCode).one()

    return serviceableLocationDetail.dest_code

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

def store_shipment_info(update):

    updates = AwbUpdate.query.filter_by(providerId = update.providerId, awbNumber  = update.awbNumber, location = update.location, date = to_py_date(update.date), status = update.status, description = update.description).all()

    if not updates:

        dupdate = AwbUpdate()

        dupdate.providerId = update.providerId

        dupdate.awbNumber  = update.awbNumber

        dupdate.location = update.location

        dupdate.date = to_py_date(update.date)

        dupdate.status = update.status

        dupdate.description = update.description

        session.commit()

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 get_provider_for_pickup_type(pickUp):

    return Provider.query.filter(Provider.pickup == pickUp).first().id

def close_session():

    if session.is_active:

        print "session is active. closing it."

        session.close()

def is_alive():

    try:

        session.query(Awb.id).limit(1).one()

        return True

    except:

        return False

def get_all_pickup_stores():

    pickupStores = PickupStore.query.all()

    return pickupStores

def get_pickup_store(storeId):

    return PickupStore.query.filter_by(id = storeId).one()

def get_pickup_store_by_hotspot_id(hotspotId):

    return PickupStore.query.filter_by(hotspotId = hotspotId).one()

def add_pincode(provider, pincode, destCode, exp, cod, stationType, otgAvailable):

    provider = Provider().query.filter_by(id = provider).one()

    serviceableLocationDetails = ServiceableLocationDetails()

    serviceableLocationDetails.provider = provider

    serviceableLocationDetails.dest_pincode = pincode

    serviceableLocationDetails.dest_code = destCode

    serviceableLocationDetails.exp = exp

    serviceableLocationDetails.cod = cod

    serviceableLocationDetails.station_type = stationType

    serviceableLocationDetails.otgAvailable = otgAvailable

    session.commit()

def update_pincode(providerId, pincode, exp, cod, otgAvailable):

    serviceableLocationDetails = ServiceableLocationDetails.get_by(provider_id = providerId, dest_pincode = pincode)

    serviceableLocationDetails.exp = exp

    serviceableLocationDetails.cod = cod

    serviceableLocationDetails.otgAvailable = otgAvailable

    session.commit()

def adjust_delivery_time(start_time, delivery_days):

    '''

    Returns the actual no. of days which will pass while 'delivery_days'

    no. of business days will pass since 'order_time'. 

    '''

    start_date = start_time.date()

    end_date = start_date + datetime.timedelta(days = delivery_days)

    holidays = get_holidays(to_java_date(start_time), -1)

    holidays = [to_py_date(holiday).date() for holiday in holidays]

    while start_date <= end_date:

        if start_date.weekday() == 6 or start_date in holidays:

            delivery_days = delivery_days + 1

            end_date = end_date + datetime.timedelta(days = 1)

        start_date = start_date + datetime.timedelta(days = 1)

    return delivery_days

def get_min_advance_amount(itemId, destination_pin, providerId, codAllowed):

    client = CatalogClient().get_client()

    sp = client.getStorePricing(itemId)

    if codAllowed:

        return sp.minAdvancePrice, True

    else:

        dest_code, exp, iscod, otgAvailable = serviceable_location_cache.get(providerId).get(destination_pin)

        if iscod:

            if providerId == 6:

                return max(sp.minAdvancePrice, sp.recommendedPrice - 10000), True

            if providerId == 3:

                return max(sp.minAdvancePrice, sp.recommendedPrice - 25000), True

            if providerId == 1:

                return max(sp.minAdvancePrice, sp.recommendedPrice - 10000), True

        else:

            return sp.recommendedPrice, False