mrfishchev / aihr-calc

Aihr Calculator

The project allows to estimate, how many hours per week you need to spend to finish selected courses within selected time.

Note!
Unfortunately, I was not able to create docker-compose for a client part, nginx didn't want to proxy requests to backend. I spent two evening on it, so it feels like not the best place for such efforts (I'm not Angular expert for now).

Get Started

1. docker-compose -f docker-compose-all.yml up -d will run BE and populate initial data in localstack
2. cd client && npm i
3. npm run start will run project with proxy and run http://localhost:4200
4. Now you can play with it.

Warning!
If you don't see any data in dynamodb (or backend), try to chmod +x backend/localstack/setup-localstack.sh

How to run Tests

1. docker-compose up -d will run localstack (no in-memory db option here)
2. Run all the tests from solution.

Everything has been tested with Safari browser only.

Assumptions

Topic	Comment
Client Authorization	It's easy to implement with AWS SSM and JWT token but time consuming
Study Week	Considered to (24 * 7) week length
History Update	History will be updated, when the client asks for estimate (current client only)
Weekend or Holidays	Not considered within estimation process
Pagination	Skipped, it's difficult to implement on FE for me now (just time related)
History Limit	No limit is here
Past Days	Not available for user (but it could be, if use started study before and wants to know when he will finish it)

Possible improvements

• Better to have minimum delta between StartDate and EndDate calculated based on selected courses and their duration
• State implementation for storing selected courses in case of page reload

Backend overwiew

• Persistence layer: DynamodDB
• Cloud Provider: Localstack
• Testing: Integration & UnitTests
• Initial Data: loading by backend/localstack/setup-localstack.sh

Screenshot: