class Cucumber::Runtime::FeaturesLoader

def check_tag_limits(tag_counts)
  error_messages = []
  @tag_expression.limits.each do |tag_name, tag_limit|
    tag_locations = (tag_counts[tag_name] || [])
    tag_count = tag_locations.length
    if tag_count > tag_limit
      error = "#{tag_name} occurred #{tag_count} times, but the limit was set to #{tag_limit}\n  " +
        tag_locations.join("\n  ")
      error_messages << error
    end
  end
  raise TagExcess.new(error_messages) if error_messages.any?
end

def features
  load unless @features
  @features
end

def initialize(feature_files, filters, tag_expression)
  @feature_files, @filters, @tag_expression = feature_files, filters, tag_expression
end

def load
  features = Ast::Features.new
  tag_counts = {}
  start = Time.new
  log.debug("Features:\n")
  @feature_files.each do |f|
    feature_file = FeatureFile.new(f)
    feature = feature_file.parse(@filters, tag_counts)
    if feature
      features.add_feature(feature)
      log.debug("  * #{f}\n")
    end
  end
  duration = Time.now - start
  log.debug("Parsing feature files took #{format_duration(duration)}\n\n")
  check_tag_limits(tag_counts)
  @features = features
end

def log
  Cucumber.logger
end