# railwaymen.gemspec
lib = File.expand_path("../lib", __FILE__)
$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
require "railwaymen/version"

Gem::Specification.new do |spec|
  spec.name = "railwaymen"
  spec.version = Railwaymen::VERSION
  spec.authors = ["Krzysztof Buszewicz"]
  spec.email = ["krzysztof.buszewicz@railwaymen.org"]

  spec.summary = "Example gem"
  spec.description = "This gem was created for presentation purposes."
  spec.homepage = "https://github.com/krzysztofbuszewicz-railwaymen/railwaymen"
  spec.license = "MIT"

  spec.files = `git ls-files -z`.split("\x0").reject do |f|
    f.match(%r{^(test|spec|features)/})
  end

  spec.bindir = "exe"
  spec.executables = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
  spec.require_paths = ["lib"]

  spec.add_development_dependency "bundler", "~> 1.16"
  spec.add_development_dependency "rake", "~> 10.0"
  spec.add_development_dependency "rspec", "~> 3.0"
end

# lib/railwaymen/configuration.rb
module Railwaymen
  class Configuration
    attr_reader :names

    def initialize
      @names = %w(Krzysztof)
    end

    def names=(names)
      raise(StandardError, 'names must be an array of strings') if !valid_names?(names)
      @names = names
    end

    private

    def valid_names?(names)
      names.is_a?(Array) && names.all? { |n| n.is_a?(String) }
    end
  end
end

# lib/railwaymen.rb
require "railwaymen/version"
require "railwaymen/configuration"

module Railwaymen
  class << self
    def configuration
      @configuration ||= Configuration.new
    end

    def configure
      yield(configuration) if block_given?
      configuration
    end
  end
end

# lib/generators/railwaymen/templates/initializer.rb
Railwaymen.configure do |c|
  c.names = %w(Krzysiek Zdzisiek Misiek)
end

# lib/generators/railwaymen/install_generator.rb
require 'rails/generators'

module Railwaymen
  class InstallGenerator < ::Rails::Generators::Base
    namespace 'railwaymen:install'
    source_root File.expand_path('../templates', __FILE__)
    desc 'Generates railwaymen gem initializer.'

    def install
      template 'initializer.rb', 'config/initializers/railwaymen.rb'
    end
  end
end

# lib/railwaymen/conductor.rb
module Railwaymen
  module Conductor
    def check_ticket!(ticket)
      raise Errors::MissingTicket if ticket.nil?
      "OK"
    end
  end
end

# lib/railwaymen/errors/missing_ticket.rb
module Railwaymen
  module Errors
    class MissingTicket < StandardError
      def initialize
        super('Ticket is nil and it cannot be!')
      end
    end
  end
end

# lib/railwaymen.rb
require "railwaymen/version"
require "railwaymen/configuration"
require "railwaymen/errors/missing_ticket"
require "railwaymen/conductor"

module Railwaymen
  class << self
    def configuration
      @configuration ||= Configuration.new
    end

    def configure
      yield(configuration) if block_given?
      configuration
    end
  end
end

RSpec.describe Railwaymen do
  it "has a version number" do
    expect(Railwaymen::VERSION).not_to be nil
  end

  # LOL, remove this
  it "does something useful" do
    expect(false).to eq(true)
  end
end