Class: SmartBrain::EventStore::InMemory

Inherits:
Object
  • Object
show all
Defined in:
lib/smart_brain/event_store/in_memory.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ InMemory

Returns a new instance of InMemory.



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# File 'lib/smart_brain/event_store/in_memory.rb', line 8

def initialize
  @sessions = {}
end

Instance Method Details

#all_turns(session_id:) ⇒ Object 



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# File 'lib/smart_brain/event_store/in_memory.rb', line 75

def all_turns(session_id:)
  return sessions.values.flat_map { |s| s[:turns] } if session_id.nil?

  (sessions[session_id] || { turns: [] })[:turns]
end

#append_turn(session_id:, turn_events:, created_at:, domain_id: 'legacy') ⇒ Object 



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# File 'lib/smart_brain/event_store/in_memory.rb', line 12

def append_turn(session_id:, turn_events:, created_at:, domain_id: 'legacy')
  session = sessions[session_id]
  if session && session[:domain_id] != domain_id
    raise ArgumentError, "session #{session_id} belongs to domain #{session[:domain_id]}"
  end
  session ||= sessions[session_id] = { domain_id: domain_id, seq: 0, turns: [] }
  session[:seq] += 1
  turn_id = SecureRandom.uuid
  messages = normalize_messages(turn_id: turn_id, messages: turn_events[:messages] || [], created_at: created_at)
  refs = normalize_refs(turn_id: turn_id, refs: turn_events[:refs] || [], created_at: created_at)
  turn = {
    id: turn_id,
    session_id: session_id,
    seq: session[:seq],
    created_at: created_at.iso8601,
    turn_events: turn_events.merge(messages: messages, refs: refs)
  }
  session[:turns] << turn
  turn
end

#entity_frequencies(session_id:, window_turns:) ⇒ Object 



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# File 'lib/smart_brain/event_store/in_memory.rb', line 61

def entity_frequencies(session_id:, window_turns:)
  session = sessions[session_id]
  return Hash.new(0) unless session

  freq = Hash.new(0)
  session[:turns].last(window_turns).each do |turn|
    Array(turn.dig(:turn_events, :entities)).each do |entity|
      canonical = entity[:canonical] || entity[:name]
      freq[canonical.to_s.downcase] += 1
    end
  end
  freq
end

#recent_refs(session_id:, limit:) ⇒ Object 



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# File 'lib/smart_brain/event_store/in_memory.rb', line 54

def recent_refs(session_id:, limit:)
  session = sessions[session_id]
  return [] unless session

  session[:turns].last(limit).flat_map { |t| t.dig(:turn_events, :refs) || [] }
end

#recent_turns(session_id:, limit:) ⇒ Object 



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# File 'lib/smart_brain/event_store/in_memory.rb', line 37

def recent_turns(session_id:, limit:)
  session = sessions[session_id]
  return [] unless session

  session[:turns].last(limit).flat_map do |turn|
    (turn.dig(:turn_events, :messages) || []).map do |m|
      {
        turn_id: turn[:id],
        message_id: m[:id],
        role: m[:role],
        content: m[:content],
        created_at: m[:created_at]
      }
    end
  end
end

#turns_count(session_id:) ⇒ Object 



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# File 'lib/smart_brain/event_store/in_memory.rb', line 33

def turns_count(session_id:)
  (sessions[session_id] || { turns: [] })[:turns].size
end