Class: SmartBrain::MemoryExtractor::Extractor

Inherits:
Object
  • Object
show all
Defined in:
lib/smart_brain/memory_extractor/extractor.rb

Instance Method Summary collapse

Constructor Details

#initialize(config:) ⇒ Extractor

Returns a new instance of Extractor.



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# File 'lib/smart_brain/memory_extractor/extractor.rb', line 8

def initialize(config:)
  @config = config
end

Instance Method Details

#extract(session_id:, turn:, entity_frequencies: Hash.new(0)) ⇒ Object 



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# File 'lib/smart_brain/memory_extractor/extractor.rb', line 12

def extract(session_id:, turn:, entity_frequencies: Hash.new(0))
  events = turn.fetch(:turn_events)
  explain = []
  items = []

  collect(items, explain, events[:tasks], type: 'tasks', confidence: confidence(:tool_derived), source_turn_id: turn[:id])
  collect(items, explain, events[:decisions], type: 'decisions', confidence: confidence(:user_asserted), source_turn_id: turn[:id])
  collect(items, explain, events[:goals], type: 'goals', confidence: confidence(:user_asserted), source_turn_id: turn[:id])
  collect(items, explain, events[:events], type: 'events', confidence: confidence(:tool_derived), source_turn_id: turn[:id])
  collect(items, explain, events[:profile], type: 'profile', confidence: confidence(:user_asserted), source_turn_id: turn[:id])
  collect(items, explain, events[:cases], type: 'cases', confidence: confidence(:tool_derived), source_turn_id: turn[:id])
  collect(items, explain, events[:patterns], type: 'patterns', confidence: confidence(:inferred), source_turn_id: turn[:id])

  Array(events[:preferences]).each do |preference|
    key = preference.fetch(:key)
    if preference[:confirmed]
      items << build_item(type: 'preferences', key: key, value_json: preference, source_turn_id: turn[:id], confidence: confidence(:user_asserted), scope_ref: preference[:scope_ref])
      explain << "write preferences:#{key}"
    else
      explain << "skip preferences:#{key} not confirmed"
    end
  end

  Array(events[:entities]).each do |entity|
    key = entity.fetch(:key)
    canonical = (entity[:canonical] || entity[:name]).to_s.downcase
    should_write = entity[:remember] || entity_structure_signal?(entity) || entity_frequencies[canonical] >= freq_threshold
    if should_write
      items << build_item(type: 'entities', key: key, value_json: entity, source_turn_id: turn[:id], confidence: confidence(:inferred), scope_ref: entity[:scope_ref])
      explain << "write entities:#{key}"
    else
      explain << "skip entities:#{key} below threshold"
    end
  end

  Array(events[:retractions]).each do |retraction|
    items << build_item(type: retraction.fetch(:type), key: retraction.fetch(:key), value_json: retraction, source_turn_id: turn[:id], confidence: confidence(:user_asserted), status: 'retracted', scope_ref: retraction[:scope_ref])
    explain << "retract #{retraction.fetch(:type)}:#{retraction.fetch(:key)}"
  end

  # KG edges: pass-through (subject/predicate/object). Orthogonal to
  # memory_items — runtime persists them to kg_edges via KnowledgeGraph.
  edges = Array(events[:edges]).map do |edge|
    next unless edge[:subject] && edge[:predicate] && edge[:object]

    { subject: edge[:subject], predicate: edge[:predicate],
      object: edge[:object], confidence: edge[:confidence], scope_ref: edge[:scope_ref] }
  end.compact

  {
    session_id: session_id,
    items: items,
    explain: explain,
    edges: edges
  }
end