Moneyexchange

Write a Ruby gem to perform currency conversion and arithmetics with different currencies. The expected features and the usage of the gem should be something like this:

### Configure the currency rates with respect to a base currency (here EUR):
 
Conversion rates:
  Base EUR
  USD 1.11
  Bitcoin 0.0047

 
### Instantiate money objects:
 
fifty_eur = Money.new(50, 'EUR')
 
### Get amount and currency:
 
fifty_eur.amount   # => 50
fifty_eur.currency # => "EUR"
fifty_eur.inspect  # => "50.00 EUR"
 
### Convert to a different currency (should return a Money
### instance, not a String):
 
fifty_eur.convert_to('USD') # => 55.50 USD
 
### Perform operations in different currencies:
 
twenty_dollars = Money.new(20, 'USD')
 
### Arithmetics:
 
fifty_eur + twenty_dollars # => 68.02 EUR
fifty_eur - twenty_dollars # => 31.98 EUR
fifty_eur / 2              # => 25 EUR
twenty_dollars * 3         # => 60 USD
 
### Comparisons (also in different currencies):
 
twenty_dollars == Money.new(20, 'USD') # => true
twenty_dollars == Money.new(30, 'USD') # => false
 
fifty_eur_in_usd = fifty_eur.convert_to('USD')
fifty_eur_in_usd == fifty_eur          # => true
 
twenty_dollars > Money.new(5, 'USD')   # => true
twenty_dollars < fifty_eur             # => true

For the purpose of this exercise, when implementing equality, you can consider two monetary amounts as equal if they agree up to the cents.

Installation

Add this line to your application's Gemfile:

gem 'moneyexchange'

And then execute:

$ bundle

Or install it yourself as:

$ gem install moneyexchange

Usage

TODO: Write usage instructions here

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/[USERNAME]/moneyexchange. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.

License

The gem is available as open source under the terms of the MIT License.

Code of Conduct

Everyone interacting in the Moneyexchange project’s codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.

javascriptisscary / moneyexchange