tax-trimmer's Introduction

Tax Trimmer

This project is part of the HR process in DevOcean

Usage

Fork/clone the repo.
You can open the solution file in the Visual Studio IDE and hit F5
Or, alternatively, build and launch TaxTrim.exe (The DevOcean.TaxTrim.Cli assembly)

The application will enter an input mode asking you for the gross amount.
Enter a positive, decimal number and hit Enter. The net amount will be displayed on the next line. Repeat the procedure as needed.

To return to the Windows Command Prompt press Ctrl+C.

NOTE: No error occurs if you enter a negative number for the gross amount and the net amount returned is 0.

Configuration

All the settings of the tax system are configurable through the appsettings.json file

Motivation

Why is the application developed the way it is?

Over-engineering
For the sake of the test, the app utilizies DI, Logging, error handling, and other good practices to demonstrate their usage.
Enforce loose coupling
Current assembly structure is as follows:
Application code: DevOcean.TaxTrimmer.dll
Application code tests: DevOcean.TaxTrimmer.Xunit.dll
Hosting app: DevOcean.TaxTrimmer.Cli.exe

Application code is isolated in a separate assembly so it coud be plugged in whatever other host app is necessary. E.g., Windows Service, ASP.NET Web App, etc.
Logging
It is merely a demonstration of the 1st OOP principle: Abstraction
Besides, IMO there are too many log providers nowadays so hard coupling some in the application is a limitting experience.