class SimpleCov::ExitCodes::MinimumOverallCoverageCheck

def calculate_minimum_violations
  coverage_achieved = minimum_coverage.map do |criterion, percent|
    {
      criterion: criterion,
      minimum_expected: percent,
      actual: result.coverage_statistics.fetch(criterion).percent
    }
  end
  coverage_achieved.select do |achieved|
    achieved.fetch(:actual) < achieved.fetch(:minimum_expected)
  end
end

def exit_code
  SimpleCov::ExitCodes::MINIMUM_COVERAGE
end

def failing?
  minimum_violations.any?
end

def initialize(result, minimum_coverage)
  @result = result
  @minimum_coverage = minimum_coverage
end

def minimum_violations
  @minimum_violations ||= calculate_minimum_violations
end

def report
  minimum_violations.each do |violation|
    $stderr.printf(
      "%<criterion>s coverage (%<covered>.2f%%) is below the expected minimum coverage (%<minimum_coverage>.2f%%).\n",
      covered: SimpleCov.round_coverage(violation.fetch(:actual)),
      minimum_coverage: violation.fetch(:minimum_expected),
      criterion: violation.fetch(:criterion).capitalize
    )
  end
end