# frozen_string_literal: true

require 'English'

module TableBeet
  class World
    #
    # @return  [Hash]  The hash that { scope name => Array of ::TableBeet:Step }
    #
    def self.scopes
      scopes = Hash.new { |hash, key| hash[key] = [] }

      include_modules.each do |mod, tags|
        space = Space.new(mod)
        step_names = space.define_steps
        next if step_names.empty?

        scope_name = tags.keys.first

        step_names.each do |name|
          scopes[scope_name] << Step.new(space.method(name))
        end
      end

      scopes
    end

    def self.include_modules
      RSpec.configuration.instance_variable_get(:@include_modules).items_and_filters
    end

    class Space
      def initialize(mod)
        extend(mod)
      end

      def define_steps
        methods.grep(/^match: (?<name>.+)/) { $LAST_MATCH_INFO[:name] }
      end
    end
  end
end