Class: RailsPulse::Jobs::Charts::FailureRate

Inherits:
Charts::Base show all
Defined in:
app/models/rails_pulse/jobs/charts/failure_rate.rb

Instance Method Summary collapse

Methods inherited from Charts::Base

#initialize

Constructor Details

This class inherits a constructor from RailsPulse::Charts::Base

Instance Method Details

#to_chart_data ⇒ Object 



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# File 'app/models/rails_pulse/jobs/charts/failure_rate.rb', line 5

def to_chart_data
  summaries = base_summary_query

  # Single query fetching both counts
  summaries = summaries
    .group(:period_start)
    .select(
      :period_start,
      "SUM(rails_pulse_summaries.count) as total_count",
      "SUM(rails_pulse_summaries.error_count) as total_errors"
    )

  # Build raw_data hash from grouped results
  raw_data = {}
  summaries.each do |summary|
    timestamp = summary.period_start.to_i
    count = summary.total_count || 0
    raw_data[timestamp] = count > 0 ? (summary.total_errors.to_f / count * 100).round(2) : nil
  end

  # Pad missing data with zeros
  step = time_step
  daily_data = {}
  (@start_time.to_i..@end_time.to_i).step(step) do |timestamp|
    daily_data[timestamp] = raw_data[timestamp] || nil
  end

  labels = daily_data.keys.map { |timestamp| timestamp * 1000 }

  series = [
    {
      name: "Failure Rate",
      data: daily_data.values,
      type: "bar",
      color: RailsPulse::ChartColors::P95
    }
  ]

  { labels: labels, series: series }
end