Class: RailsPulse::Routes::Charts::ErrorRate

Inherits:
Charts::Base show all
Defined in:
app/models/rails_pulse/routes/charts/error_rate.rb

Instance Method Summary collapse

Constructor Details

#initialize(route: nil, **kwargs) ⇒ ErrorRate

Returns a new instance of ErrorRate.



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# File 'app/models/rails_pulse/routes/charts/error_rate.rb', line 5

def initialize(route: nil, **kwargs)
  super(subject: route, **kwargs)
end

Instance Method Details

#to_chart_data ⇒ Object 



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# File 'app/models/rails_pulse/routes/charts/error_rate.rb', line 9

def to_chart_data
  summaries = base_summary_query
    .group(:period_start)
    .select(
      :period_start,
      "SUM(count) as total_count",
      "SUM(error_count) as total_errors",
      "SUM(status_4xx) as total_4xx"
    )

  # 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] = {
      error_rate: count > 0 ? (summary.total_errors.to_f / count * 100).round(2) : nil,
      client_error_rate: count > 0 ? (summary.total_4xx.to_f / count * 100).round(2) : nil
    }
  end

  # Pad missing data with defaults
  default_value = { error_rate: nil, client_error_rate: nil }
  daily_data = {}
  (@start_time.to_i..@end_time.to_i).step(time_step) do |timestamp|
    daily_data[timestamp] = raw_data[timestamp] || default_value
  end

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

  series = [
    {
      name: "4xx Errors",
      data: daily_data.values.map { |d| d[:client_error_rate] },
      type: "bar",
      stack: "error_rate",
      color: RailsPulse::ChartColors::P99,
      itemStyle: { borderRadius: [ 0, 0, 0, 0 ] }
    },
    {
      name: "5xx Errors",
      data: daily_data.values.map { |d| d[:error_rate] },
      type: "bar",
      stack: "error_rate",
      color: RailsPulse::ChartColors::P95,
      itemStyle: { borderRadius: [ 5, 5, 0, 0 ] }
    }
  ]

  { labels: labels, series: series }
end