Class: Athar::Dashboard::KpiCalculator

Inherits:
Object
  • Object
show all
Defined in:
lib/athar/dashboard/kpi_calculator.rb

Defined Under Namespace

Classes: Result

Instance Method Summary collapse

Constructor Details

#initialize(model:, now: Time.current, registry: nil) ⇒ KpiCalculator

Returns a new instance of KpiCalculator.



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# File 'lib/athar/dashboard/kpi_calculator.rb', line 16

def initialize(model:, now: Time.current, registry: nil)
  @model = model
  @now = now
  @registry = registry
end

Instance Method Details

#call(connection: ActiveRecord::Base.connection) ⇒ Object

rubocop:disable Metrics/AbcSize



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# File 'lib/athar/dashboard/kpi_calculator.rb', line 22

def call(connection: ActiveRecord::Base.connection) # rubocop:disable Metrics/AbcSize
  aggregates = aggregate(connection)
  truncates_30d = truncate_count(connection)

  Result.new(
    # scope_total covers the same universe the feed UNIONs over: row
    # deletions plus all table events for the model's tables (not just
    # the last 30d), so "filtered N of M" never overshoots M.
    scope_total: aggregates["scope_total"].to_i + table_event_total(connection),
    last_24h: aggregates["last_24h"].to_i,
    last_7d: aggregates["last_7d"].to_i,
    prior_7d: aggregates["prior_7d"].to_i,
    distinct_actors_30d: aggregates["distinct_actors_30d"].to_i,
    truncates_30d: truncates_30d,
    sparkline: Sparkline.new(model: @model, now: @now).buckets(connection: connection)
  )
end