https://github.com/shahryarjb/supermarket_cashier_assignment

Small supermarket chain with a simple cashier function to add products to a cart and display the total price.
https://github.com/shahryarjb/supermarket_cashier_assignment

assignment elixir protocol

Last synced: 3 months ago
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Small supermarket chain with a simple cashier function to add products to a cart and display the total price.

• Host: GitHub
• URL: https://github.com/shahryarjb/supermarket_cashier_assignment
• Owner: shahryarjb
• Created: 2025-01-17T07:26:45.000Z (5 months ago)
• Default Branch: master
• Last Pushed: 2025-01-17T08:41:57.000Z (5 months ago)
• Last Synced: 2025-01-29T04:37:19.926Z (5 months ago)
• Topics: assignment, elixir, protocol
• Language: Elixir
• Homepage:
• Size: 13.7 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md

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README

        
# Sca

This is a practice project for an interview, and thus it is not connected to a database. The data is provided as a list within the test file.

```elixir

def deps do

  [

    {:sca, github: "shahryarjb/supermarket_cashier_assignment"}

  ]

end

```

### Note

The entire process of this project is based on the following three strategies and consists of three main sections: cart, discount, and promotions. The promotions section functions like a plugin, allowing for easy addition and removal.

Efforts have been made to align the strategies to enable seamless modifications in pricing and quantity without requiring significant code changes.

#### BuyOneGetOneFree

> The CEO is a big fan of buy-one-get-one-free offers and of green tea. He wants us to add a

> rule to do this.

#### BulkDiscountFixed

> The COO, though, likes low prices and wants people buying strawberries to get a price

> discount for bulk purchases. If you buy 3 or more strawberries, the price should drop to £4.50

> per strawberry.

#### TakeThreePayTwo

> The CTO is a coffee addict. If you buy 3 or more coffees, the price of all coffees should drop

> to two thirds of the original price.