# frozen_string_literal: false

module HamlLint
  # Outputs the a list of lints with a count of how many of each were found.
  # Ordered by descending count
  class Reporter::OffenseCountReporter < Reporter
    def display_report(report)
      lints = report.lints
      total_count = lints.count
      return if total_count.zero?

      lints.group_by { |l| lint_type_group(l) }
           .transform_values(&:size)
           .sort_by { |_linter, lint_count| -lint_count }
           .each do |linter, lint_count|
        log.log "#{lint_count.to_s.ljust(total_count.to_s.length + 2)} #{linter}"
      end

      log.log '--'
      log.log "#{total_count}  Total"
    end

    private

    def lint_type_group(lint)
      "#{lint.linter.name}#{offense_type(lint)}"
    end

    def offense_type(lint)
      ": #{lint.message.to_s.split(':')[0]}" if lint.linter.name == 'RuboCop'
    end
  end
end