class BenchmarkResult < ActiveRecord::Base

  belongs_to :benchmark_info, inverse_of: :benchmark_results
  belongs_to :benchmark_batch, inverse_of: :benchmark_results
  has_many :benchmark_durations, dependent: :destroy, inverse_of: :benchmark_result
  has_many :benchmark_parameters, dependent: :destroy, inverse_of: :benchmark_result

  def average_duration
    sum = benchmark_durations.inject(0) { |acc, val| acc += val.duration }
    sum / benchmark_durations.size
  end

  def min_duration
    benchmark_durations.map { |duration| duration.duration }.min
  end

  def max_duration
    benchmark_durations.map { |duration| duration.duration }.max
  end

  def to_json
    { timestamp: performed_at.to_i, value: min_duration }
  end

  def performed_at
    benchmark_batch.performed_at
  end

  def benchmark_name
    benchmark_info.name
  end

  def benchmark_parameters_json
    JSON.generate(benchmark_parameters.collect { |p| p.to_json } )
  end

end

# == Schema Information
#
# Table name: benchmark_results
#
#  id                 :integer          not null, primary key
#  benchmark_info_id  :integer
#  created_at         :datetime
#  updated_at         :datetime
#  benchmark_batch_id :integer
#