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# Egn

EGN(ЕГН) is the national identification number of Bulgarian citizens. This gem
provides ways to generate, validate and parse any given valid number for
information.

## Installation

Add this line to your application's Gemfile:

    gem 'egn'

And then execute:

    $ bundle

Or install it yourself as:

    $ gem install egn

## Usage

    require "egn"

    # Quickly generate a random number
    Egn.generate
    # => "6101047500"

    # Validate a given number
    Egn.validate("6101047500")
    # => true

    # Create an new EGN object with a random number
    egn = Egn::Egn.new
    # => 9212094524

    # OR generate EGN for a specific date
    egn = Egn::Egn.new({year: 1945, month: 5, day: 8})
    # => 4505085346

    # OR parse an existing one
    egn = Egn.parse("6101047500")
    # => 6101047500

    egn.birth_date
    # => #<Date: 1961-01-04 ((2437304j,0s,0n),+0s,2299161j)>

    egn.year
    # => 1961

    egn.month
    # => 1

    egn.day
    # => 10

    egn.sex
    # => :male

    egn.sex(format: :char)
    # => 'm'

    egn.sex(format: :number)
    # => 1

    egn.valid?
    # => true

## Contributing

1. Fork it
2. Create your feature branch (`git checkout -b my-new-feature`)
3. Commit your changes (`git commit -am 'Add some feature'`)
4. Push to the branch (`git push origin my-new-feature`)
5. Create new Pull Request