Class: RailsPulse::Routes::Cards::RequestCountTotals

Inherits:
Cards::Base
  • Object
show all
Defined in:
app/models/rails_pulse/routes/cards/request_count_totals.rb

Instance Method Summary collapse

Constructor Details

#initialize(route: nil, disabled_tags: [], show_non_tagged: true, period: 7, period_type: "day") ⇒ RequestCountTotals

Returns a new instance of RequestCountTotals.



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# File 'app/models/rails_pulse/routes/cards/request_count_totals.rb', line 5

def initialize(route: nil, disabled_tags: [], show_non_tagged: true, period: 7, period_type: "day")
  @route = route
  @disabled_tags = disabled_tags
  @show_non_tagged = show_non_tagged
  @period = period
  @period_type = period_type
end

Instance Method Details

#to_metric_card ⇒ Object 



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# File 'app/models/rails_pulse/routes/cards/request_count_totals.rb', line 13

def to_metric_card
  # Use base class helper for query construction
  base_query = base_summary_query("RailsPulse::Route")

  metrics = base_query.select(
    "SUM(count) AS total_count",
    "SUM(CASE WHEN period_start >= #{quote(current_window_start)} THEN count ELSE 0 END) AS current_count",
    "SUM(CASE WHEN period_start >= #{quote(range_start)} AND period_start < #{quote(current_window_start)} THEN count ELSE 0 END) AS previous_count"
  ).take

  # Calculate metrics from single query result
  total_request_count = metrics.total_count || 0
  current_period_count = metrics.current_count || 0
  previous_period_count = metrics.previous_count || 0

  has_data = total_request_count > 0

  # Use base class trend calculation
  if show_trend?
    trend_icon, trend_amount = has_data ? trend_for(current_period_count, previous_period_count) : [ "move-right", "—" ]
  end

  # Create sparkline query using only the current period
  sparkline_query = RailsPulse::Summary
    .with_tag_filters(@disabled_tags, @show_non_tagged)
    .where(
      summarizable_type: "RailsPulse::Route",
      period_type: @period_type,
      period_start: current_window_start..now
    )
  sparkline_query = sparkline_query.where(summarizable_id: @route.id) if @route

  if period_type_hours?
    grouped_data = sparkline_query.group_by_hour(:period_start).sum(:count)
  else
    grouped_data = sparkline_query.group_by_date(:period_start).sum(:count)
  end

  # Use base class sparkline generation (handles hour vs day automatically)
  sparkline_data = sparkline_from(grouped_data)

  # Calculate appropriate rate display based on frequency
  if has_data
    total_minutes = (period_type_hours? ? (@period * 48).hours : (@period * 2).days) / 1.minute.to_f
    requests_per_minute = total_request_count.to_f / total_minutes

    # Choose appropriate time unit for display
    if requests_per_minute >= 1
      summary = "#{requests_per_minute.round(2)} / min"
    elsif requests_per_minute * 60 >= 1
      requests_per_hour = requests_per_minute * 60
      summary = "#{requests_per_hour.round(2)} / hour"
    else
      requests_per_day = requests_per_minute * 60 * 24
      summary = "#{requests_per_day.round(2)} / day"
    end
  else
    summary = "—"
  end

  {
    id: "request_count_totals",
    chart_color: RailsPulse::ChartColors::DEFAULT,
    context: "routes",
    title: "Request Rate",
    summary: summary,
    chart_data: sparkline_data,
    trend_icon: trend_icon,
    trend_amount: trend_amount,
    trend_text: (show_trend? ? comparison_period_text : nil),
    period_stat: has_data ? "#{format_number(total_request_count)} requests" : period_date_range,
    help_heading: "Request Throughput",
    help_text: "Total HTTP requests served over the last 14 days, expressed as an average rate. Use this to understand traffic patterns and capacity planning needs."
  }
end