awkisopen/australium

module Australium

  # Represents a full game of TF2, comprised of individual {Event}s.
  class Game

    class << self
      private
      def event_filter(event_name, event_class)
        define_method(event_name) { @events.select { |e| e.is_a?(event_class) } }
      end
    end
    include EventFilters

    # @!attribute [r] events
    #   @return [Array<Events>] events that took place during the game, in chronological order
    attr_reader :events

    # @param events [Array<Events>] events that took place during the game
    def initialize(events)
      @events = events
    end

    # Returns an array of all {Player Players} who connected to the server during this game.
    # Caches the return value after the first call.
    # @return [Array<Player>] players who participated in the game
    def players
      @players ||= @events.reverse.each_with_object([]) do |event, all_players|
        break all_players if event.state.nil? || event.state.players.nil?
        all_players.concat event.state.players.reject { |p| all_players.include?(p) }
      end
    end

    # Returns the name of the map that was played.
    # @return [String] map name
    def map_name
      @events.select { |e| e.is_a?(MapStart) }.last.map_name
    end

    # Hide instance variables from #inspect to prevent clutter on interactive terminals.
    # @return [String]
    def inspect ; self.to_s end

  end
end