Module: Twobook::Corrections

Defined in:
lib/twobook/corrections.rb

Defined Under Namespace

Classes: Correction, CorrectionBuffer, CorrectionMade, SimulatedDifferenceAdjustment

Class Method Summary collapse

Class Method Details

.make_deletion(event, accounts, history, happened_at: Time.current) ⇒ Object 



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# File 'lib/twobook/corrections.rb', line 3

def self.make_deletion(event, accounts, history, happened_at: Time.current)
  correct_history = history - [event]
  correct_history.reject! { |historical_event| historical_event < event }

  snapshots = accounts.map do |a|
    Serialization.(a, before_event: event, allow_empty: false)
  end.compact

  CorrectionMade.new(
    account_snapshots: snapshots,
    corrected_events: correct_history.map { |e| Serialization.serialize_event(e) },
    correction_explanation: { event_uuid: event.uuid, type: 'deletion' },
    happened_at: happened_at,
  )
end

.make_edit(edited_event, accounts, history, happened_at: Time.current) ⇒ Object 



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# File 'lib/twobook/corrections.rb', line 19

def self.make_edit(edited_event, accounts, history, happened_at: Time.current)
  index = history.index(edited_event)
  correct_history = history.deep_dup
  correct_history[index] = edited_event
  correct_history.reject! { |historical_event| historical_event < edited_event }

  snapshots = accounts.map do |a|
    Serialization.(a, before_event: edited_event, allow_empty: false)
  end.compact

  CorrectionMade.new(
    account_snapshots: snapshots,
    corrected_events: correct_history.map { |e| Serialization.serialize_event(e) },
    correction_explanation: { event_uuid: edited_event.uuid, type: 'edit', new_parameters: edited_event.data },
    happened_at: happened_at,
  )
end