Flower Shop Challenge

Context

A flower shop used to base the price of their flowers on an item by item cost. So if a customer ordered 10 roses then they would be charged 10x the cost of single rose. The flower shop has decided to start selling their flowers in bundles and charging the customer on a per bundle basis. So if the shop sold roses in bundles of 5 and 10 and a customer ordered 15 they would get a bundle of 10 and a bundle of 5. The flower shop currently sells the following products:

Name	Code	Bundle
Roses	R12	5 @ $6.99 10 @ $12.99
Lilies	L09	3 @ $9.95 6 @ $16.95 9 @ $24.95
Tulips	T58	3 @ $5.95 5 @ $9.95 9 @ $16.99

Task

Given a customer order you are required to determine the cost and bundle breakdown for each product. To save on shipping space each order should contain the minimal number of bundles.

Pre-requisites

1. .Net 5.0 SDK needs to be installed
   • Confirm that you have it installed by running: dotnet --version, you should see: 5.0.XXX

Running the tests

1. From root directory run dotnet test

D:\Dev\CliFlowerShop>dotnet test
  Determining projects to restore...
  All projects are up-to-date for restore.
  CliFlowerShop -> D:\Dev\CliFlowerShop\CliFlowerShop\bin\Debug\net5.0\CliFlowerShop.dll
  CliFlowerShop.Test -> D:\Dev\CliFlowerShop\CliFlowerShop.Test\bin\Debug\net5.0\CliFlowerShop.Test.dll
Test run for D:\Dev\CliFlowerShop\CliFlowerShop.Test\bin\Debug\net5.0\CliFlowerShop.Test.dll (.NETCoreApp,Version=v5.0)
Microsoft (R) Test Execution Command Line Tool Version 16.11.0
Copyright (c) Microsoft Corporation.  All rights reserved.

Starting test execution, please wait...
A total of 1 test files matched the specified pattern.

Passed!  - Failed:     0, Passed:    17, Skipped:     0, Total:    17, Duration: 25 ms - CliFlowerShop.Test.dll (net5.0)

Running the solution

1. Run via dotnet command directly
   • From root directory, navigate to the CliFlowerShop directory
   • run: dotnet run
2. Publish and run via executable
   • run: dotnet publish -c Release -o dist
   • navigate to: dist
   • execute CliFlowerShop.exe
3. Build and run from your IDE of choice (Microsoft Visual Studio/JetBrains Rider)

Program output example

Welcome to CLI Flower Shop!
The following flowers are available:
        R12: Roses
        L09: Lilies
        T58: Tulips
You can add order in the following format:
        [COUNT] [FLOWER CODE]
For Example:
        "10 R12"
Leave your input empty to submit your order!
Place your order below!:

foobar foobar foobar
Order format is Invalid! Valid format is:
        [POSITIVE_NUMBER] [FLOWER CODE]
For Example:
        10 R12

10 X12
Flower code is Invalid! Valid flower codes are:
        R12: Roses
        L09: Lilies
        T58: Tulips

0 R12
Order count must be greater than zero!

10 R12
15 L09
13 T58

Your Receipt:
10 R12 $12.99
        1 x 10 $12.99
15 L09 $41.90
        1 x 9 $24.95
        1 x 6 $16.95
13 T58 $25.85
        2 x 5 $9.95
        1 x 3 $5.95