class RuboCop::Formatter::SimpleTextFormatter

def annotate_message(msg)
  msg.gsub(/`(.*?)`/, Rainbow('\1').yellow)
end

def colored_severity_code(offense)
  color = COLOR_FOR_SEVERITY[offense.severity.name]
  colorize(offense.severity.code, color)
end

def count_stats(offenses)
  @total_offense_count += offenses.count
  @total_correction_count += offenses.select(&:corrected?).count
end

def file_finished(file, offenses)
  return if offenses.empty?
  count_stats(offenses)
  report_file(file, offenses)
end

def finished(inspected_files)
  report_summary(inspected_files.count,
                 @total_offense_count,
                 @total_correction_count)
end

def message(offense)
  message = offense.corrected? ? green('[Corrected] ') : ''
  message << annotate_message(offense.message)
end

def pluralize(number, thing, options = {})
  text = ''
  if number == 0 && options[:no_for_zero]
    text = 'no'
  else
    text << number.to_s
  end
  text << " #{thing}"
  text << 's' unless number == 1
  text
end

def report_file(file, offenses)
  output.puts yellow("== #{smart_path(file)} ==")
  offenses.each do |o|
    output.printf("%s:%3d:%3d: %s\n",
                  colored_severity_code(o),
                  o.line, o.real_column, message(o))
  end
end

def report_summary(file_count, offense_count, correction_count)
  summary = pluralize(file_count, 'file')
  summary << ' inspected, '
  offenses_text = pluralize(offense_count, 'offense', no_for_zero: true)
  offenses_text << ' detected'
  summary << colorize(offenses_text, offense_count.zero? ? :green : :red)
  if correction_count > 0
    summary << ', '
    correction_text = pluralize(correction_count, 'offense')
    correction_text << ' corrected'
    color = correction_count == offense_count ? :green : :cyan
    summary << colorize(correction_text, color)
  end
  output.puts
  output.puts summary
end

def smart_path(path)
  # Ideally, we calculate this relative to the project root.
  base_dir = Dir.pwd
  if path.start_with? base_dir
    relative_path(path, base_dir)
  else
    path
  end
end

def started(_target_files)
  @total_offense_count = 0
  @total_correction_count = 0
end