class Cashier:
def __init__(self):
self.db = Database()
def checkout(self, items):
itemDetails = []
for item in items:
x = list(self.db.getItemDetails(item[0]))
x.append(item[1])
itemDetails.append(x)
print itemDetails
self.cost = []
print "\n\n Summary: \n\n"
for i in itemDetails:
print "id = "+str(i[0])
print "name = "+str(i[1])
print "category = "+str(i[2])
print "life time since date of manufacture(in days) = "+str(i[3])
print "price = "+str(i[4])
print "quantity = "+str(i[5])
print "cost for that quantity = " + str(i[5] * i[4])
self.cost.append(i[4]*i[5])
print "net cost = " + str(sum(self.cost))
answer = str(raw_input("proceed? yes/no"))
if answer == "yes":
print "purchase accepted."
for item in items:
self.db.updateInventory(item)
else:
print "no purchase"
print "Thank you for visiting."
def close(self):
self.db.close()
class QualityController:
def deleteItemFromInventory(self, i):
self.db.deleteItemFromInventory(i)
def addItemToInventory(self, item_id, quantity):
now = time.strftime("%Y-%m-%d")
self.db.addItemToInventory(item_id, quantity, now)
def checkExpiry(self):
while True:
time.sleep(60)
for i in self.db.displayInventory():
quality = self.checkQuality(i[0])
if quality == "good":
pass
else:
print "expiry found. Item removed from inventory."
def renewStockThread(self, item_id, quantity, client_id):
itemDetails = self.db.getItemDetails(item_id)
self.supplier.request((itemDetails[0], itemDetails[1]), quantity)
# assume that the request is fulfilled..
self.addItemToInventory(item_id, quantity)
if client_id == -1:
print "\nnew stock has arrived\n"
else:
print "\n\norder of client number : " + str(client_id) + " has arrived.\n\n"
def renewStock(self, item_id, quantity, client_id):
t = threading.Thread(target=self.renewStockThread, args=(item_id, quantity, client_id))
t.start()
if client_id != -1:
print "we have successfully placed the order for client number " + str(client_id)
def close(self):
self.db.close()
def __init__(self):
self.renewQuantity = 10
self.db = Database()
self.supplier = Supplier()
t = threading.Thread(target=self.checkExpiry, args="")
t.start()
def checkQuality(self, item_id):
ttl = self.db.getItemDetails(item_id)[3]
date_of_purchase = str(self.db.getItemInfoFromInventory(item_id)[2])
y = date_of_purchase.split("-")[0]
m = date_of_purchase.split("-")[1]
d = date_of_purchase.split("-")[2]
date_of_purchase = "/".join([m,d,y])
date_of_purchase = datetime.datetime.strptime(date_of_purchase, "%m/%d/%Y")
end_date = date_of_purchase + datetime.timedelta(days=ttl)
now = datetime.datetime.now()
if now < end_date:
print "end_date not reached."
print "good quality."
return "good"
else:
print "end date reached."
print "bad quality."
self.deleteItemFromInventory(item_id)
self.renewStock(item_id, self.renewQuantity, -1)
return "not good"
