class Eco::API::UseCases::DefaultCases::AnalysePeople < Eco::API::Common::Loaders::UseCase
  name "analyse-people"
  type :export

  attr_reader :session, :people, :options

  def main(people, session, options, usecase)
    @session = session; @options = options; @people = people

    save!(analysis)
  end

  private

  def analysis
    analytics.attribute = :name
    analysed = analytics.analyse({
      threshold: 0.20,
      order:     [:average, :dice]
    })
    analytics.re_analyse(analysed, threshold: 0.5, order: [:average])
  end

  def analytics
    @analytics ||= people.analytics
  end

  def file
    @file ||= options.dig(:output, :file) || "analytics.txt"
  end

  def save!(analysed)
    if analysed.empty?
      session.logger.info("There were results identified!!")
      return
    end

    ext  = File.extname(file).downcase.delete(".")

    File.open(file, "w") do |fd|
      if ext == "txt"
        fd << analytics.analysis(analysed, format: :txt)
      elsif ext == "html"
        puts "html is still not supported"
        exit(1)
      elsif ext == "json"
        puts "json is still not supported"
        exit(1)
      end
    end
  end

end