class SlimLint::LinterSelector

def extract_enabled_linters(config, options)
  included_linters =
    LinterRegistry.extract_linters_from(options.fetch(:included_linters, []))
  included_linters = LinterRegistry.linters if included_linters.empty?
  excluded_linters =
    LinterRegistry.extract_linters_from(options.fetch(:excluded_linters, []))
  # After filtering out explicitly included/excluded linters, only include
  # linters which are enabled in the configuration
  linters = (included_linters - excluded_linters).map do |linter_class|
    linter_config = config.for_linter(linter_class)
    linter_class.new(linter_config) if linter_config['enabled']
  end.compact
  # Highlight condition where all linters were filtered out, as this was
  # likely a mistake on the user's part
  if linters.empty?
    raise SlimLint::Exceptions::NoLintersError, 'No linters specified'
  end
  linters
end

def initialize(config, options)
  @config = config
  @options = options
end

def linters_for_file(file)
  @linters ||= extract_enabled_linters(@config, @options)
  @linters.select { |linter| run_linter_on_file?(@config, linter, file) }
end

def run_linter_on_file?(config, linter, file)
  linter_config = config.for_linter(linter)
  if linter_config['include'].any? &&
     !SlimLint::Utils.any_glob_matches?(linter_config['include'], file)
    return false
  end
  if SlimLint::Utils.any_glob_matches?(linter_config['exclude'], file)
    return false
  end
  true
end