class Historical

# File lib/pig_ci/metric/historical.rb, line 2
def initialize(historical_log_file:)
  @historical_log_file = historical_log_file
end

# File lib/pig_ci/metric/historical.rb, line 19
def add_change_percentage_and_append!(timestamp:, metric:, data:)
  max_change_percentage_data = {}
  max_change_percentage_data[timestamp] = {}
  max_change_percentage_data[timestamp][metric] = data

  data = PigCI::Metric::Historical::ChangePercentage.new(previous_data: to_h, data: max_change_percentage_data).updated_data
  append!(timestamp: timestamp, metric: metric, data: data[timestamp][metric])
end

# File lib/pig_ci/metric/historical.rb, line 11
def append!(timestamp:, metric:, data:)
  to_h
  @to_h[timestamp] ||= {}
  @to_h[timestamp][metric] = data
  remove_old_historical_data!
  save!
end

# File lib/pig_ci/metric/historical.rb, line 6
def to_h
  @to_h ||= read_historical_log_file.sort_by { |timestamp, _data| timestamp.to_s.to_i * -1 }.to_h
end

# File lib/pig_ci/metric/historical.rb, line 38
def read_historical_log_file
  if File.exist?(@historical_log_file)
    JSON.parse(File.open(@historical_log_file, "r").read, symbolize_names: true)
  else
    {}
  end
end

# File lib/pig_ci/metric/historical.rb, line 30
def remove_old_historical_data!
  new_historical_data = @to_h
    .sort_by { |timestamp, _data| timestamp.to_s.to_i * -1 }[0..(PigCI.historical_data_run_limit - 1)]
    .to_h
    .sort_by { |timestamp, _data| timestamp.to_s.to_i * -1 }.to_h
  @to_h = new_historical_data
end

# File lib/pig_ci/metric/historical.rb, line 46
def save!
  File.write(@historical_log_file, @to_h.to_json)
  @to_h = nil
end