class Reek::CodeClimate::CodeClimateFingerprint

def compute
  return unless warning_uniquely_identifiable?
  identify_warning
  identifying_aspects.hexdigest.freeze
end

def identify_warning
  identifying_aspects << warning.source
  identifying_aspects << warning.smell_type
  identifying_aspects << warning.context
  identifying_aspects << parameters
end

def identifying_aspects
  @identifying_aspects ||= Digest::MD5.new
end

def initialize(warning)
  @warning = warning
end

def parameters
  warning.parameters.except(*NON_IDENTIFYING_PARAMETERS).sort.to_s
end

def warning_uniquely_identifiable?
  # These could be identifiable if they had parameters
  ![
    'ManualDispatch',
    'NilCheck'
  ].include?(warning.smell_type)
end