class Lookout::DashboardPresenter

def bounce_rate
  query = Stats::BounceRatesQuery.call(params)
  if compare_mode?
    query.with_comparison(true).average("bounce_rate")
  else
    query.average("bounce_rate").try(:round, 2) || 0
  end
end

def compare_mode?
  params[:comparison] != 'false'
end

def initialize(params)
  @params = params
end

def total_pageviews
  Stats::TotalPageviewsQuery.call(params).with_comparison(compare_mode?).count
end

def total_visits
  Stats::TotalVisitorsQuery.call(params).with_comparison(compare_mode?).count
end

def unique_visitors
  Stats::UniqueVisitorsQuery.call(params).with_comparison(compare_mode?).count
end

def views_per_visit
  Stats::AverageViewsPerVisitQuery.call(params).with_comparison(compare_mode?).average("count")
end

def visit_duration
  query = Stats::AverageVisitDurationQuery.call(params)
  if compare_mode?
    query.with_comparison(true)
  else
    query[0].average_visit_duration
  end
end