module ESP
  # @private
  module StatTotals
    # Not Implemented. You cannot create or update a Stat.
    def save
      fail ESP::NotImplementedError
    end

    # Not Implemented. You cannot delete a Stat.
    def destroy
      fail ESP::NotImplementedError
    end

    # We only add new_1w* and old* fields as the new_1w field includes the counts from new_1h and new_1d.
    def total
      attributes.select { |a, _v| a.match(/new_1w|old/) }.values.reduce(:+)
    end

    def total_suppressed
      attributes.select { |a, _v| a.match(/suppressed_/) }.values.reduce(:+)
    end

    %w(fail warn error pass info).each do |status|
      # Defines the following methods:
      #   Stat#total_pass
      #   Stat#total_fail
      #   Stat#total_warn
      #   Stat#total_error
      #   Stat#total_info
      define_method "total_#{status}" do
        attributes.select { |a, _v| a.match(/new_1w|old/) && a.match(/#{status}/) }.values.reduce(:+)
      end

      # Defines the following methods:
      #   Stat#total_new_1h_pass
      #   Stat#total_new_1h_fail
      #   Stat#total_new_1h_warn
      #   Stat#total_new_1h_error
      #   Stat#total_new_1h_info
      #   Stat#total_new_1d_pass
      #   Stat#total_new_1d_fail
      #   Stat#total_new_1d_warn
      #   Stat#total_new_1d_error
      #   Stat#total_new_1d_info
      #   Stat#total_new_1w_pass
      #   Stat#total_new_1w_fail
      #   Stat#total_new_1w_error
      #   Stat#total_new_1w_info
      #   Stat#total_new_1w_warn
      #   Stat#total_old_fail
      #   Stat#total_old_pass
      #   Stat#total_old_warn
      #   Stat#total_old_error
      #   Stat#total_old_info
      %w(new_1h new_1d new_1w old).each do |time|
        define_method "total_#{time}_#{status}" do
          attributes.select { |a| a.match(/#{time}/) && a.match(/#{status}/) }.values.reduce(:+)
        end
      end

      # Defines the following methods:
      #   Stat#total_suppressed_pass
      #   Stat#total_suppressed_fail
      #   Stat#total_suppressed_warn
      #   Stat#total_suppressed_error
      define_method "total_suppressed_#{status}" do
        attributes.select { |a| a.match(/suppressed_/) && a.match(/#{status}/) }.values.reduce(:+)
      end
    end

    # Defines the following methods:
    #   Stat#total_new_1h
    #   Stat#total_new_1d
    #   Stat#total_new_1w
    #   Stat#total_old
    %w(new_1h new_1d new_1w old).each do |time|
      define_method "total_#{time}" do
        attributes.select { |a| a.match(/#{time}/) }.values.reduce(:+)
      end
    end
  end
end