module Eco
  module API
    class Session
      class Config
        class BaseConfig < Hash
          attr_reader :config

          class << self
            def attr_key(*attrs)
              attrs.each do |attr|
                method = "#{attr}".freeze
                if self.instance_methods.include?(method.to_sym)
                  puts "WARNING (#{self}): redefining method already defined '#{method}'."
                end

                define_method method do
                  self[method]
                end

                define_method "#{method}=" do |value|
                  self[method] = value
                end
              end
              self
            end
          end

          def initialize(config:)
            super(nil)
            @config = config
          end

          def file_manager
            config.file_manager
          end

          def apis
            config.apis
          end

          def clone(config:)
            keys.each_with_object(self.class.new(config: config)) do |key, cnf|
              begin
                cnf[key] = self[key].clone(config: cnf)
              rescue ArgumentError
                begin
                  cnf[key] = self[key].clone
                rescue TypeError
                  cnf[key] = self[key]
                end
              end
            end
          end
        end
      end
    end
  end
end