#Goal:#

To create an app for ShoppingCart Billing Engine, which would accept a list of Items and prepare the Cart, Apply the promotions associated dynamically and generate the bill and print it in console.

{src} ::Should support the following Scenarios:

Write a program in Java (JDK 8 / Maven) and associated unit tests that can price a basket of goods taking into account some special offers.

The goods that can be purchased, together with their normal prices are:

• Soup – 65p per tin
• Bread – 80p per loaf
• Milk – £1.30 per bottle
• Apples – £1.00 per bag

Current special offers:

• Apples have a 10% discount off their normal price this week
• Buy 2 tins of soup and get a loaf of bread for half price

The program should accept a list of items in the basket and output the subtotal, the special offer discounts and the final price.

Input should be via the command line in the form PriceBasket item1 item2 item3 ...

For example:

Prciebasket Apples Milk Bread

Output should be to the console, for example:

Subtotal: £3.10
Apples 10% off: -10p
Total: £3.00

If no special offers are applicable the code should output:

Subtotal: £1.30
(No offers available)
Total proce: £1.30

The code and design should meet these requirements, but be sufficiently flexible to allow future changes to the product list and/or discounts applied.

The code should be well structured, commented, have error handling and be tested. {src}

#Technology:# The technology stack used to implement this application are as below

~ java ~ slf4j ~ junit & mockito ~ Maven

#Build & Excecution:#

+Prerequisites required to build and run this application is

• Java 1.8 installed and setup on the local box

• Maven installed and setup on the local box

• CheckOut the project from github

• Run the cmd in console 'mvn clean install' to build and package the jar

• On successfull execution of the above step, the jar file should be available in target folder as 'ecart-1.0.jar'

• Run the jar from the target folder by using cmd ' java -jar ecart-1.0.jar Apples Apples Milk Bread Soup Soup > cartoutput.txt '

On successfully completing the execution, the output file will have the list of log statements along with the generated bill.

#Improvements:#

• Implement the presentation layer to display the spilled output
• Provide the output in a json response format to the client
• Use some rules engine, e.g EasyRules/ any Proprietary to manage the business/promotion rules