Description

This is an implementation of a technical test for a senior developer role at revo following this specifications

Installation

Create a .env file from the .env.example skeleton

cp .env.example .env

Build and spin up the docker containers

make upd

Log into the php container ssh shell

make ssh

There you can execute the application entry points located at /bin or run tests:

./vendor/bin/phpunit tests

Exercises

Collections

A working demonstration has been implemented and can be executed:

php ./bin/github-score.php

The prompt will ask for a valid github account handle. When it is input, it will calculate its current GitHub score with the requirements given by the exercise description. Be aware that there's a rate limit when hitting the GitHub API so it can only be reached a limited amount of times for a given period.

The implementation works using file_get_contents() to get the raw GitHub events data as suggested by the exercise.

An error will be output if there's a problem reaching the GitHub API or decoding the raw data.

Collections 2

This exercise has been solved using a Type enum implementing the different categories of products and a FeedTotalPriceCalculator that can take a variable amount of types to filter the types of products that should be taken into account when calculating the feed total price. So, to get the results required in the exercise statement, we would have to do:

use RevoTest\Products\FeedTotalPriceCalculator;
use RevoTest\Products\Type;

$calculator = new FeedTotalPriceCalculator();

$calculator->calculate($feed, Type::Wallet, Type::Lamp)

$calculator->calculate($feed, ...[
    Type::Wallet,
    Type::Lamp,
]);

The feed will raise an error if the json is not in the expected format given by the exercise example.

To add support for products different than wallets, shoes or lamps, they would have to be added in the Type enum.

Refactor

This exercise has been solved using a Movie interface and then implementing it through different implementations, each of which is responsible of the calculation of its amount and frequent renter points using the specifications given in the exercise statement.

To add support for the 3 new types of movies, a new Movie implementation would need to be added for each one.

To add support for the 2 new types of outputs, a new StatementGenerator implementation would need to be added for each one.

There's a foreach loop kept in this exercise as it was already present in the original exercise statement.

Testing

A working demonstration has been implemented and can be executed:

php ./bin/prime-numbers.php

The prompt will ask for a natural number. When it is input, it will calculate all the prime numbers up to and including that number using the Eratosthenes sieve algorithm. It has been optimized to save up memory usage.

An error would be output if the input is not a valid positive integer.