EASYBELL Coding challenge

Description

The task involves implementing a checkout system for a retail store. The checkout system should be able to scan products and calculate the total price based on the pricing rules of the store. You can find more details about the task here.

The pricing rules for each product are defined as follow:

• Each product has a normal price.
• Some products have special pricing rules, where buying a certain quantity of a product results in a discounted price.

The task is to implement the Checkoutclass, which should have the following functionalities:

• scan(item): Add an item to the list of scanned items.
• total(): Calculate the total price of all scanned items.

Prerequisites

• php v8.3 or higher
• Check composer.jsonfor the full list of the packages used

Installation

• Clone the repository to your machine.
• Go to the application main root
• Run the following command composer install

Usage

To use the checkout system:

1. Instantiate the Checkout class.
2. Scan each item using the scan(item) method.
3. Get the total price using the total() method.
4. Check the PriceTest class for some examples.

Example:

$co = new \App\Checkout\Application\Checkout();
$co->scan('A');
$co->scan('B');
$co->scan('A');
$total = $co->total(); // Calculate the total price
echo "Total: $total";

Testing

vendor/bin/phpunit

Notes

• I have some concerns regarding the checkout class methods signature.
• I wanted to dockerize the app but I didn't due to the time limitation.