class Holidays::Definition::Parser::CustomMethod

def args_string(args)
  a = args.join(", ")
  a[0..-1]
end

def call(methods)
  return {} if methods.nil? || methods.empty?
  validate!(methods)
  custom_methods = {}
  methods.each do |name, pieces|
    arguments = parse_arguments!(pieces["arguments"])
    custom_methods[method_key(name, arguments)] = Entity::CustomMethod.new({
      name: name,
      arguments: arguments,
      source: pieces["ruby"],
    })
  end
  custom_methods
end

def initialize(validator)
  @validator = validator
end

def method_key(name, args)
  "#{name.to_s}(#{args_string(args)})"
end

def parse_arguments!(arguments)
  splitArgs = arguments.split(",")
  parsedArgs = []
  splitArgs.each do |arg|
    parsedArgs << arg.strip
  end
  parsedArgs
end

def validate!(methods)
  raise ArgumentError unless methods.all? do |name, pieces|
    @validator.valid?(
      {
        :name => name,
        :arguments => pieces["arguments"],
        :source => pieces["ruby"]
      }
    )
  end
end