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Refactor order processing to use product mapping and quantities #30

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Refactor order processing to use product mapping and quantities #30

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35 changes: 25 additions & 10 deletions app.py
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Original file line number Diff line number Diff line change
Expand Up @@ -35,15 +35,32 @@ def unhandled_exception():
'hammer': 1
}

product_mapping = {
3: "wrench",
4: "nails",
5: "hammer"
}

def process_order(cart):
global Inventory
tempInventory = Inventory
for item in cart:
if Inventory[item['id']] <= 0:
raise Exception("Not enough inventory for " + item['id'])
tempInventory = Inventory.copy()
quantities = cart["quantities"]

for item in cart["items"]:
product_id = item['id']
product_name = product_mapping.get(product_id)

if not product_name or product_name not in tempInventory:
raise Exception("Product not found: " + str(product_id))

requested_quantity = int(quantities.get(str(product_id), 0))

if tempInventory[product_name] < requested_quantity:
raise Exception("Not enough inventory for " + product_name)
else:
tempInventory[item['id']] -= 1
print 'Success: ' + item['id'] + ' was purchased, remaining stock is ' + str(tempInventory[item['id']])
tempInventory[product_name] -= requested_quantity
print(f"Success: {requested_quantity} of {product_name} were purchased, remaining stock is {tempInventory[product_name]}")

Inventory = tempInventory

@app.before_request
Expand All @@ -65,11 +82,9 @@ def sentry_event_context():

@app.route('/checkout', methods=['POST'])
def checkout():

order = json.loads(request.data)
print "Processing order for: " + order["email"]
cart = order["cart"]
print("Processing order for: " + order.get("email", "Unknown"))

process_order(cart)
process_order(order)

return 'Success'
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