require 'iniparse'

module Invoker
  module Parsers
    class Config
      attr_accessor :processes
      def initialize(filename)
        @ini_content = File.read(filename)
        @processes = process_ini(@ini_content)
      end

      private
      def process_ini(ini_content)
        document = IniParse.parse(ini_content)
        document.map do |section|
          check_directory(section["directory"])
          OpenStruct.new(label: section.key, dir: section["directory"], cmd: section["command"])
        end
      end

      def check_directory(app_dir)
        if app_dir && !app_dir.empty? && !File.directory?(app_dir)
          raise Invoker::Errors::InvalidConfig.new("Invalid directory #{app_dir}")
        end
      end
    end
  end
end