Class: RailsPulse::Queries::Cards::ExecutionRate

Inherits:
Object
  • Object
show all
Defined in:
app/models/rails_pulse/queries/cards/execution_rate.rb

Instance Method Summary collapse

Constructor Details

#initialize(query: nil) ⇒ ExecutionRate

Returns a new instance of ExecutionRate.



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# File 'app/models/rails_pulse/queries/cards/execution_rate.rb', line 5

def initialize(query: nil)
  @query = query
end

Instance Method Details

#to_metric_card ⇒ Object 



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# File 'app/models/rails_pulse/queries/cards/execution_rate.rb', line 9

def to_metric_card
  operations = if @query
    RailsPulse::Operation.where(query: @query)
  else
    RailsPulse::Operation.all
  end

  # Calculate total request count
  total_request_count = operations.count

  # Calculate trend by comparing last 7 days vs previous 7 days
  last_7_days = 7.days.ago.beginning_of_day
  previous_7_days = 14.days.ago.beginning_of_day
  current_period_count = operations.where("occurred_at >= ?", last_7_days).count
  previous_period_count = operations.where("occurred_at >= ? AND occurred_at < ?", previous_7_days, last_7_days).count

  percentage = previous_period_count.zero? ? 0 : ((previous_period_count - current_period_count) / previous_period_count.to_f * 100).abs.round(1)
  trend_icon = percentage < 0.1 ? "move-right" : current_period_count < previous_period_count ? "trending-down" : "trending-up"
  trend_amount = previous_period_count.zero? ? "0%" : "#{percentage}%"

  sparkline_data = operations
    .group_by_week(:occurred_at, time_zone: "UTC")
    .count
    .each_with_object({}) do |(date, count), hash|
      formatted_date = date.strftime("%b %-d")
      hash[formatted_date] = {
        value: count
      }
    end

  # Calculate average operations per minute
  min_time = operations.minimum(:occurred_at)
  max_time = operations.maximum(:occurred_at)
  total_minutes = min_time && max_time && min_time != max_time ? (max_time - min_time) / 60.0 : 1
  average_operations_per_minute = total_request_count / total_minutes

  {
    title: "Execution Rate",
    summary: "#{average_operations_per_minute.round(2)} / min",
    line_chart_data: sparkline_data,
    trend_icon: trend_icon,
    trend_amount: trend_amount,
    trend_text: "Compared to last week"
  }
end