Module: Legion::Extensions::Llm::Ledger::Writers::OfficialRecordWriter

Extended by:
Logging::Helper
Defined in:
lib/legion/extensions/llm/ledger/writers/official_record_writer.rb

Constant Summary collapse

ALLOWED_CLASSIFICATION_LEVELS = 
%w[public internal confidential restricted].freeze

Class Method Summary collapse

Class Method Details

.billing(body) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 674

def billing(body)
  body[:billing] || body[:cost] || {}
end

.caller_identity(body) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 413

def caller_identity(body)
  caller_identity_refs(::Legion::Data.connection, body)[:identity_id]
end

.caller_identity_refs(db, body) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 441

def caller_identity_refs(db, body)
  body[:__ledger_caller_identity_refs] ||= begin
    explicit_identity_id = integer_or_nil(body[:caller_identity_id] || body.dig(:caller, :requested_by, :id))
    explicit_principal_id = integer_or_nil(body[:caller_principal_id] ||
                                           body.dig(:caller, :requested_by, :principal_id))

    explicit_identity_id ||= integer_or_nil(body[:__header_identity_id])
    explicit_principal_id ||= integer_or_nil(body[:__header_principal_id])

    refs = { principal_id: explicit_principal_id, identity_id: explicit_identity_id }.compact
    unless refs[:principal_id] && refs[:identity_id]
      if explicit_identity_id && !explicit_principal_id && identity_tables_available?(db)
        row = db[:identities].where(id: explicit_identity_id).first
        refs[:principal_id] = row[:principal_id] if row
      end

      resolved = resolve_identity(db, body)
      refs[:principal_id] ||= resolved[:principal_id]
      refs[:identity_id] ||= resolved[:identity_id]
    end
    refs.compact
  end
end

.caller_principal(body) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 417

def caller_principal(body)
  caller_identity_refs(::Legion::Data.connection, body)[:principal_id]
end

.caller_type(body) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 421

def caller_type(body)
  raw_type = body[:caller_type] ||
             body.dig(:identity, :type) ||
             body.dig(:caller, :requested_by, :type) ||
             body.dig(:caller, :source)
  return normalize_caller_type(raw_type) if present?(raw_type)

  parsed_identity_descriptor(body)[:kind]
end

.classification_level(body) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 748

def classification_level(body)
  raw = body[:classification_level] || body.dig(:classification, :level)
  return 'internal' if raw.nil? || raw.to_s.empty?

  normalized = raw.to_s.downcase
  ALLOWED_CLASSIFICATION_LEVELS.include?(normalized) ? normalized : 'internal'
end

.compute_content_hash(content) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 838

def compute_content_hash(content)
  return nil if content.nil? || content.to_s.empty?

  Digest::SHA256.hexdigest(json_dump(content))[0..31]
end

.contains_phi?(body) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 756

def contains_phi?(body)
  body[:contains_phi] || body.dig(:classification, :contains_phi) || false
end

.contains_pii?(body) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 760

def contains_pii?(body)
  body[:contains_pii] || body.dig(:classification, :contains_pii) || false
end

.correlation_id(body) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 639

def correlation_id(body)
  reference(body, :correlation_id, :correlation_ref) || body.dig(:tracing, :correlation_id)
end

.cost_usd(body) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 678

def cost_usd(body)
  raw = body[:cost_usd] || body.dig(:cost, :estimated_usd) || body.dig(:cost, :usd)
  raw.to_f
end

.crypt_available? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 811

def crypt_available?
  defined?(Legion::Crypt) && Legion::Crypt.respond_to?(:encrypt)
end

.deep_symbolize(value) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 819

def deep_symbolize(value)
  case value
  when Hash
    value.each_with_object({}) { |(key, item), memo| memo[key.to_sym] = deep_symbolize(item) }
  when Array
    value.map { |item| deep_symbolize(item) }
  else
    value
  end
end

.deterministic_uuid(value) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 780

def deterministic_uuid(value)
  hex = Digest::SHA256.hexdigest(value.to_s)[0, 32]
  "#{hex[0, 8]}-#{hex[8, 4]}-#{hex[12, 4]}-#{hex[16, 4]}-#{hex[20, 12]}"
end

.enrich_request!(db, existing, body, latest_message = nil) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 384

def enrich_request!(db, existing, body, latest_message = nil)
  updates = {}
  update_if_missing(updates, existing, :latest_message_id, latest_message&.dig(:id))
  caller_refs = caller_identity_refs(db, body)
  update_if_missing(updates, existing, :caller_identity_id, caller_refs[:identity_id])
  update_if_missing(updates, existing, :caller_principal_id, caller_refs[:principal_id])
  update_if_missing(updates, existing, :runtime_caller_type, caller_type(body))
  update_if_missing(updates, existing, :runtime_caller_class, runtime_caller_class(body))
  update_if_missing(updates, existing, :runtime_caller_client, runtime_caller_client(body))
  update_if_missing(updates, existing, :identity_canonical_name, identity_canonical_name(body))
  update_if_missing(updates, existing, :request_content_hash, resolve_request_content_hash(body))

  request_json = request_payload(body) ? json_dump(request_payload(body)) : nil
  if request_json
    update_if_placeholder(updates, existing, :request_json, request_json)
  elsif existing[:request_json].nil?
    # Nothing to add
  end

  msg_count = Array(body.dig(:request, :messages) || body[:messages]).size
  updates[:context_message_count] = msg_count if existing[:context_message_count].to_i.zero? && msg_count.positive?

  return existing if updates.empty?

  db[:llm_message_inference_requests].where(id: existing[:id]).update(updates)
  log.info("[ledger] enriched request id=#{existing[:id]} fields=#{updates.keys.join(',')}")
  existing.merge(updates)
end

.enrich_response!(db, existing, response_message, body) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 268

def enrich_response!(db, existing, response_message, body)
  updates = {}
  update_if_missing(updates, existing, :response_message_id, response_message&.dig(:id))
  update_if_missing(updates, existing, :tier, tier(body))
  update_if_missing(updates, existing, :provider_instance, provider_instance(body))
  update_if_missing(updates, existing, :finish_reason, finish_reason(body))
  update_if_missing(updates, existing, :dispatch_path, body[:dispatch_path] || body[:tier])
  update_if_missing(updates, existing, :identity_canonical_name, identity_canonical_name(body))
  update_if_missing(updates, existing, :response_content_hash, resolve_response_content_hash(body))

  vis = visible_response(body)
  if vis
    response_json = json_dump(vis)
    update_if_placeholder(updates, existing, :response_json, response_json)
  elsif existing[:response_json].nil?
    # Nothing to add, but also don't overwrite existing data with nil
  end

  think = thinking_response(body)
  if think
    thinking_json = json_dump(think)
    update_if_placeholder(updates, existing, :response_thinking_json, thinking_json)
  elsif existing[:response_thinking_json].nil?
    # Nothing to add
  end

  return if updates.empty?

  db[:llm_message_inference_responses].where(id: existing[:id]).update(updates)
  log.info("[ledger] enriched response id=#{existing[:id]} fields=#{updates.keys.join(',')}")
end

.extract_inline_thinking(text) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 723

def extract_inline_thinking(text)
  if defined?(::Legion::Extensions::Llm::Responses::ThinkingExtractor)
    extraction = ::Legion::Extensions::Llm::Responses::ThinkingExtractor.extract(text)
    [extraction.content, extraction.thinking]
  else
    [text, nil]
  end
end

.find_or_create_conversation(db, body) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 58

def find_or_create_conversation(db, body)
  uuid = stable_uuid(reference(body, :conversation_id, :conversation_ref) || 'default-conversation')
  existing = db[:llm_conversations].where(uuid: uuid).first
  return existing if existing

  id = insert_with_savepoint(db, :llm_conversations, {
                               uuid:                    uuid,
                               title:                   body[:title] || body[:conversation_title],
                               classification_level:    classification_level(body),
                               contains_phi:            contains_phi?(body),
                               contains_pii:            contains_pii?(body),
                               pii_types_json:          json_dump(Array(body.dig(:classification, :pii_types))),
                               jurisdictions_json:      json_dump(Array(body.dig(:classification, :jurisdictions) || body[:jurisdictions])),
                               retention_policy:        body[:retention_policy] || 'default',
                               expires_at:              body[:expires_at],
                               identity_canonical_name: identity_canonical_name(body),
                               recorded_at:             recorded_at(body),
                               inserted_at:             Time.now.utc,
                               created_at:              Time.now.utc,
                               updated_at:              Time.now.utc
                             }, operation: 'official_record_writer.conversation')
  db[:llm_conversations][id: id]
rescue Sequel::UniqueConstraintViolation => e
  log.debug("[ledger] conversation collision resolved uuid=#{uuid} error=#{e.class}")
  existing = db[:llm_conversations].where(uuid: uuid).first
  return existing if existing

  raise
end

.find_or_create_identity(db, principal, provider, descriptor) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 568

def find_or_create_identity(db, principal, provider, descriptor)
  table = db[:identities]
  existing = table.where(
    principal_id:          principal[:id],
    provider_id:           provider[:id],
    provider_identity_key: descriptor[:provider_identity_key]
  ).first
  return existing if existing

  uuid_key = "identity:#{principal[:id]}:#{provider[:id]}:#{descriptor[:provider_identity_key]}"
  id = insert_with_savepoint(db, :identities, {
                               uuid:                  deterministic_uuid(uuid_key),
                               principal_id:          principal[:id],
                               provider_id:           provider[:id],
                               provider_identity_key: descriptor[:provider_identity_key],
                               last_authenticated_at: Time.now.utc,
                               account_type:          'primary',
                               is_default:            true,
                               created_at:            Time.now.utc,
                               updated_at:            Time.now.utc
                             }, operation: 'official_record_writer.identity')
  table[id: id]
rescue Sequel::UniqueConstraintViolation => e
  handle_exception(e, level: :debug, handled: true, operation: 'official_record_writer.identity_race')
  existing = table.where(principal_id: principal[:id], provider_id: provider[:id],
                         provider_identity_key: descriptor[:provider_identity_key]).first
  return existing if existing

  raise
end

.find_or_create_identity_principal(db, descriptor) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 545

def find_or_create_identity_principal(db, descriptor)
  table = db[:identity_principals]
  existing = table.where(canonical_name: descriptor[:canonical_name], kind: descriptor[:kind]).first
  return existing if existing

  id = insert_with_savepoint(db, :identity_principals, {
                               uuid:           deterministic_uuid("identity_principal:#{descriptor[:kind]}:#{descriptor[:canonical_name]}"),
                               canonical_name: descriptor[:canonical_name],
                               kind:           descriptor[:kind],
                               display_name:   descriptor[:canonical_name],
                               last_seen_at:   Time.now.utc,
                               created_at:     Time.now.utc,
                               updated_at:     Time.now.utc
                             }, operation: 'official_record_writer.identity_principal')
  table[id: id]
rescue Sequel::UniqueConstraintViolation => e
  handle_exception(e, level: :debug, handled: true, operation: 'official_record_writer.identity_principal_race')
  existing = table.where(canonical_name: descriptor[:canonical_name], kind: descriptor[:kind]).first
  return existing if existing

  raise
end

.find_or_create_identity_provider(db, provider_name) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 522

def find_or_create_identity_provider(db, provider_name)
  table = db[:identity_providers]
  existing = table.where(name: provider_name).first
  return existing if existing

  id = insert_with_savepoint(db, :identity_providers, {
                               uuid:          deterministic_uuid("identity_provider:#{provider_name}"),
                               name:          provider_name,
                               provider_type: provider_name == 'local' ? 'local' : 'external',
                               facing:        'internal',
                               source:        'ledger',
                               created_at:    Time.now.utc,
                               updated_at:    Time.now.utc
                             }, operation: 'official_record_writer.identity_provider')
  table[id: id]
rescue Sequel::UniqueConstraintViolation => e
  handle_exception(e, level: :debug, handled: true, operation: 'official_record_writer.identity_provider_race')
  existing = table.where(name: provider_name).first
  return existing if existing

  raise
end

.find_or_create_metric(db, request, response, body) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 323

def find_or_create_metric(db, request, response, body)
  metric_uuid = stable_uuid(reference(body, :metric_id, :metric_ref) || "metric:#{request_ref(body)}")
  existing = db[:llm_message_inference_metrics].where(uuid: metric_uuid).first
  return existing if existing

  token_values = tokens(body)
  id = insert_with_savepoint(db, :llm_message_inference_metrics, {
                               uuid:                          metric_uuid,
                               message_inference_request_id:  request[:id],
                               message_inference_response_id: response[:id],
                               provider:                      provider(body),
                               model_key:                     model_id(body),
                               tier:                          tier(body),
                               input_tokens:                  token_values[:input_tokens],
                               output_tokens:                 token_values[:output_tokens],
                               thinking_tokens:               token_values[:thinking_tokens],
                               total_tokens:                  token_values[:total_tokens],
                               latency_ms:                    integer(body[:latency_ms]),
                               wall_clock_ms:                 integer(body[:wall_clock_ms]),
                               cost_usd:                      cost_usd(body),
                               currency:                      body[:currency] || 'USD',
                               cost_center:                   billing(body)[:cost_center],
                               budget_key:                    billing(body)[:budget_id] || billing(body)[:budget_key],
                               identity_principal_id:         caller_identity_refs(db, body)[:principal_id],
                               identity_id:                   caller_identity_refs(db, body)[:identity_id],
                               identity_canonical_name:       identity_canonical_name(body),
                               recorded_at:                   recorded_at(body),
                               inserted_at:                   Time.now.utc
                             }, operation: 'official_record_writer.inference_metric')
  db[:llm_message_inference_metrics][id: id]
rescue Sequel::UniqueConstraintViolation => e
  log.debug("[ledger] metric collision resolved uuid=#{metric_uuid} error=#{e.class}")
  existing = db[:llm_message_inference_metrics].where(uuid: metric_uuid).first
  return existing if existing

  raise
end

.find_or_create_request(db, conversation, latest_message, body) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 118

def find_or_create_request(db, conversation, latest_message, body)
  request_id = request_ref(body)
  existing = db[:llm_message_inference_requests].where(request_ref: request_id).first
  return enrich_request!(db, existing, body, latest_message) if existing

  operation = operation(body)
  caller_refs = caller_identity_refs(db, body)
  id = insert_with_savepoint(db, :llm_message_inference_requests, {
                               uuid:                    stable_uuid(request_id),
                               conversation_id:         conversation[:id],
                               latest_message_id:       latest_message&.dig(:id),
                               parent_request_id:       resolve_parent_request_id(db, body),
                               caller_principal_id:     caller_refs[:principal_id],
                               caller_identity_id:      caller_refs[:identity_id],
                               identity_canonical_name: identity_canonical_name(body),
                               runtime_caller_type:     caller_type(body),
                               runtime_caller_class:    runtime_caller_class(body),
                               runtime_caller_client:   runtime_caller_client(body),
                               request_ref:             request_id,
                               correlation_ref:         correlation_id(body),
                               correlation_id:          correlation_id(body),
                               exchange_ref:            body[:exchange_id],
                               request_type:            operation,
                               operation:               operation,
                               idempotency_key:         body[:idempotency_key] || request_id,
                               status:                  'responded',
                               context_message_count:   Array(body.dig(:request, :messages) || body[:messages]).size,
                               request_capture_mode:    'full',
                               request_json:            if request_payload(body)
                                                          phi_protect(json_dump(request_payload(body)),
                                                                      contains_phi?(body))
                                                        end,
                               classification_level:    classification_level(body),
                               cost_center:             billing(body)[:cost_center],
                               budget_key:              billing(body)[:budget_id] || billing(body)[:budget_key],
                               injected_tool_count:     Array(body.dig(:audit, :injected_tools) || body[:injected_tools]).size,
                               context_tokens:          resolve_context_tokens(body),
                               request_content_hash:    resolve_request_content_hash(body),
                               curation_strategy:       body[:curation_strategy] || body.dig(:audit, :curation_strategy),
                               tool_policy:             body[:tool_policy] || body.dig(:audit, :tool_policy),
                               requested_at:            recorded_at(body),
                               inserted_at:             Time.now.utc
                             }, operation: 'official_record_writer.inference_request')
  db[:llm_message_inference_requests][id: id]
rescue Sequel::UniqueConstraintViolation => e
  log.debug("[ledger] request collision resolved request_ref=#{request_id} error=#{e.class}")
  existing = db[:llm_message_inference_requests].where(request_ref: request_id).first
  return enrich_request!(db, existing, body, latest_message) if existing

  raise
end

.find_or_create_response(db, request, response_message, body) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 203

def find_or_create_response(db, request, response_message, body)
  response_uuid = stable_uuid(reference(body, :provider_response_ref) || "response:#{request_ref(body)}:#{body[:provider] || 'unknown'}")
  existing = db[:llm_message_inference_responses].where(uuid: response_uuid).first

  # Fallback: if we couldn't find a response by UUID, check if a response
  # already exists for this request (e.g., metering arrived first and created
  # a response with a different UUID). Enrich it instead of creating a duplicate.
  unless existing
    existing = db[:llm_message_inference_responses]
               .where(message_inference_request_id: request[:id])
               .first
    log.debug("[ledger] response fallback: found existing response id=#{existing[:id]} for request_id=#{request[:id]}") if existing
  end

  if existing
    enrich_response!(db, existing, response_message, body)
    return existing
  end

  vis_resp = visible_response(body)
  think_resp = thinking_response(body)
  phi = contains_phi?(body)

  id = insert_with_savepoint(db, :llm_message_inference_responses, {
                               uuid:                         response_uuid,
                               message_inference_request_id: request[:id],
                               response_message_id:          response_message&.dig(:id),
                               provider:                     provider(body),
                               provider_instance:            provider_instance(body),
                               model_key:                    model_id(body),
                               tier:                         tier(body),
                               runner_ref:                   body[:worker_id] || body[:runner_ref],
                               provider_response_ref:        body[:provider_response_ref],
                               status:                       body[:error] ? 'error' : 'success',
                               finish_reason:                finish_reason(body),
                               latency_ms:                   integer(body[:latency_ms]),
                               wall_clock_ms:                integer(body[:wall_clock_ms]),
                               response_capture_mode:        'full',
                               response_json:                vis_resp ? phi_protect(json_dump(vis_resp), phi) : nil,
                               response_thinking_json:       think_resp ? phi_protect(json_dump(think_resp), phi) : nil,
                               dispatch_path:                body[:dispatch_path] || body[:tier],
                               error_category:               body[:error_category] || body.dig(:error, :category),
                               error_code:                   body[:error_code] || body.dig(:error, :code),
                               error_message:                body[:error_message] || body.dig(:error, :message),
                               response_content_hash:        resolve_response_content_hash(body),
                               route_attempts:               (body[:route_attempts] || body.dig(:audit, :route_attempts)).to_i,
                               escalation_chain_ref:         body[:escalation_chain_ref],
                               identity_principal_id:        caller_identity_refs(db, body)[:principal_id],
                               identity_id:                  caller_identity_refs(db, body)[:identity_id],
                               identity_canonical_name:      identity_canonical_name(body),
                               responded_at:                 recorded_at(body),
                               inserted_at:                  Time.now.utc
                             }, operation: 'official_record_writer.inference_response')
  db[:llm_message_inference_responses][id: id]
rescue Sequel::UniqueConstraintViolation => e
  log.debug("[ledger] response collision resolved uuid=#{response_uuid} error=#{e.class}")
  existing = db[:llm_message_inference_responses].where(uuid: response_uuid).first
  if existing
    enrich_response!(db, existing, response_message, body)
    return existing
  end

  raise
end

.find_or_create_response_message(db, conversation, request, body) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 170

def find_or_create_response_message(db, conversation, request, body)
  uuid = stable_uuid(reference(body, :response_message_id) || "response-message:#{request_ref(body)}")
  existing = db[:llm_messages].where(uuid: uuid).first
  return existing if existing

  latest = db[:llm_messages][id: request[:latest_message_id]]
  seq = (latest&.dig(:seq) || 1) + 1
  begin
    id = insert_with_savepoint(db, :llm_messages, {
                                 uuid:                         uuid,
                                 conversation_id:              conversation[:id],
                                 parent_message_id:            latest&.dig(:id),
                                 message_inference_request_id: request[:id],
                                 seq:                          seq,
                                 role:                         'assistant',
                                 content_type:                 'text',
                                 content:                      response_content(body),
                                 input_tokens:                 0,
                                 output_tokens:                tokens(body)[:output_tokens],
                                 identity_principal_id:        caller_identity_refs(db, body)[:principal_id],
                                 identity_id:                  caller_identity_refs(db, body)[:identity_id],
                                 identity_canonical_name:      identity_canonical_name(body),
                                 created_at:                   recorded_at(body),
                                 inserted_at:                  Time.now.utc
                               }, operation: 'official_record_writer.response_message')
    db[:llm_messages][id: id]
  rescue Sequel::UniqueConstraintViolation => e
    log.debug("[ledger] seq collision resolved uuid=#{uuid} conversation_id=#{conversation[:id]} error=#{e.class}")
    db[:llm_messages].where(uuid: uuid).first ||
      db[:llm_messages].where(conversation_id: conversation[:id], seq: seq).first
  end
end

.find_or_create_user_message(db, conversation, body) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 88

def find_or_create_user_message(db, conversation, body)
  uuid = stable_uuid(reference(body, :message_id, :message_id_ctx) || "request-message:#{request_ref(body)}")
  existing = db[:llm_messages].where(uuid: uuid).first
  return existing if existing

  seq = body[:message_seq] ? integer(body[:message_seq]) : next_message_seq(db, conversation)
  begin
    id = insert_with_savepoint(db, :llm_messages, {
                                 uuid:                    uuid,
                                 conversation_id:         conversation[:id],
                                 seq:                     seq,
                                 role:                    'user',
                                 content_type:            'text',
                                 content:                 request_content(body),
                                 input_tokens:            tokens(body)[:input_tokens],
                                 output_tokens:           0,
                                 identity_principal_id:   caller_identity_refs(db, body)[:principal_id],
                                 identity_id:             caller_identity_refs(db, body)[:identity_id],
                                 identity_canonical_name: identity_canonical_name(body),
                                 created_at:              recorded_at(body),
                                 inserted_at:             Time.now.utc
                               }, operation: 'official_record_writer.user_message')
    db[:llm_messages][id: id]
  rescue Sequel::UniqueConstraintViolation => e
    log.debug("[ledger] seq collision resolved uuid=#{uuid} conversation_id=#{conversation[:id]} error=#{e.class}")
    db[:llm_messages].where(uuid: uuid).first ||
      db[:llm_messages].where(conversation_id: conversation[:id], seq: seq).first
  end
end

.finish_reason(body) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 739

def finish_reason(body)
  return body[:finish_reason] if body[:finish_reason]
  return nil unless body[:response].is_a?(Hash)

  body.dig(:response, :finish_reason) || body.dig(:response, :stop, :reason)
end

.identity_canonical_name(body) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 830

def identity_canonical_name(body)
  parsed_identity_descriptor(body)[:canonical_name]
end

.identity_tables_available?(db) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 599

def identity_tables_available?(db)
  db.table_exists?(:identity_providers) &&
    db.table_exists?(:identity_principals) &&
    db.table_exists?(:identities)
end

.insert_row(db, table, attributes, operation:) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 361

def insert_row(db, table, attributes, operation:)
  Helpers::PersistenceLogging.insert_row(db, table, attributes, operation: operation, warn_on_unique: false)
end

.insert_with_savepoint(db, table, attributes, operation:) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 365

def insert_with_savepoint(db, table, attributes, operation:)
  db.transaction(savepoint: true) do
    insert_row(db, table, attributes, operation: operation)
  end
end

.integer(value, default: 0) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 789

def integer(value, default: 0)
  return default if value.nil?

  value.to_i
end

.integer_or_nil(value) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 619

def integer_or_nil(value)
  return nil if value.nil?
  return value if value.is_a?(Integer)

  int = value.to_s.to_i
  int.positive? ? int : nil
end

.json_dump(value) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 815

def json_dump(value)
  Helpers::Json.dump(value)
end

.link_response_message!(db, response_message, response) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 377

def link_response_message!(db, response_message, response)
  return unless response_message && response
  return if response_message[:message_inference_response_id] == response[:id]

  db[:llm_messages].where(id: response_message[:id]).update(message_inference_response_id: response[:id])
end

.model_id(body) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 656

def model_id(body)
  body[:model_id] || body[:model_key] || body.dig(:routing, :model)
end

.next_message_seq(db, conversation) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 785

def next_message_seq(db, conversation)
  db[:llm_messages].where(conversation_id: conversation[:id]).max(:seq).to_i + 1
end

.normalize_caller_type(value) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 605

def normalize_caller_type(value)
  return nil unless present?(value)

  normalized = value.to_s.downcase.gsub(/[^a-z0-9_:-]+/, '_').split(':', 2).first
  return 'human' if normalized == 'user'

  normalized
end

.normalize_provider_name(value) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 614

def normalize_provider_name(value)
  raw = present?(value) ? value.to_s : 'local'
  raw.downcase.gsub(/[^a-z0-9_.:-]+/, '-').gsub(/\A-+|-+\z/, '')
end

.operation(body) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 643

def operation(body)
  (body[:operation] || body[:request_type] || body.dig(:routing, :operation) ||
    body.dig(:headers, :'x-legion-llm-request-type') || 'chat').to_s
end

.parse_identity_descriptor(raw_identity, raw_type, provider_name) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 500

def parse_identity_descriptor(raw_identity, raw_type, provider_name)
  text = raw_identity.to_s
  kind = normalize_caller_type(raw_type)
  canonical = text

  if text.include?(':') && !text.include?('@')
    prefix, remainder = text.split(':', 2)
    prefix_kind = normalize_caller_type(prefix)
    if prefix_kind && present?(remainder)
      kind ||= prefix_kind
      canonical = remainder
    end
  end

  {
    canonical_name:        canonical,
    kind:                  kind || 'unknown',
    provider_identity_key: text,
    provider_name:         normalize_provider_name(provider_name)
  }
end

.parsed_identity_descriptor(body) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 481

def parsed_identity_descriptor(body)
  raw_identity = body[:caller_identity] ||
                 body.dig(:identity, :identity) ||
                 body.dig(:identity, :canonical_name) ||
                 body.dig(:caller, :requested_by, :identity) ||
                 body.dig(:caller, :requested_by, :canonical_name) ||
                 body.dig(:caller, :requested_by, :id)
  return {} unless present?(raw_identity)

  raw_type = body[:caller_type] ||
             body.dig(:identity, :type) ||
             body.dig(:caller, :requested_by, :type) ||
             body.dig(:caller, :source)
  provider_name = body.dig(:identity, :credential) ||
                  body.dig(:caller, :requested_by, :credential) ||
                  'local'
  parse_identity_descriptor(raw_identity, raw_type, provider_name)
end

.phi_protect(json_string, is_phi) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 802

def phi_protect(json_string, is_phi)
  return json_string unless is_phi && crypt_available?

  Legion::Crypt.encrypt(json_string)
rescue StandardError => e
  handle_exception(e, level: :warn, handled: true, operation: 'official_record_writer.phi_encrypt')
  json_string
end

.present?(value) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 834

def present?(value)
  !value.nil? && !(value.respond_to?(:empty?) && value.empty?)
end

.provider(body) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 648

def provider(body)
  (body[:provider] || body.dig(:routing, :provider)).to_s
end

.provider_instance(body) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 652

def provider_instance(body)
  body[:provider_instance] || body.dig(:routing, :provider_instance) || body.dig(:routing, :instance)
end

.recorded_at(body) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 764

def recorded_at(body)
  body[:recorded_at] || body[:timestamp] || body.dig(:timestamps, :returned) || body.dig(:timestamps, :provider_end) || Time.now.utc
end

.reference(body, *keys) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 768

def reference(body, *keys)
  keys.lazy.map { |key| body[key] }.find { |value| present?(value) }&.to_s
end

.request_content(body) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 687

def request_content(body)
  messages = body.dig(:request, :messages) || body[:messages]
  message = Array(messages).reverse.find { |item| item[:role].to_s == 'user' } || Array(messages).last
  content = message&.dig(:content) || body[:prompt] || body[:text]
  stringify_content(content)
end

.request_payload(body) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 683

def request_payload(body)
  body[:request] || body[:messages]
end

.request_ref(body) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 371

def request_ref(body)
  body[:__ledger_request_ref] ||= reference(body, :request_id, :request_ref) ||
                                  correlation_id(body) ||
                                  stable_uuid(SecureRandom.uuid)
end

.resolve_context_tokens(body) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 860

def resolve_context_tokens(body)
  raw = body[:tokens] || body[:audit] || body
  val = raw[:input_tokens] || raw[:input] || raw[:context_tokens] || raw[:prompt_tokens]
  present?(val) ? val.to_i : 0
end

.resolve_identity(db, body) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 465

def resolve_identity(db, body)
  return {} unless identity_tables_available?(db)

  descriptor = parsed_identity_descriptor(body)
  return {} unless present?(descriptor[:canonical_name])

  provider = find_or_create_identity_provider(db, descriptor[:provider_name])
  principal = find_or_create_identity_principal(db, descriptor)
  identity = find_or_create_identity(db, principal, provider, descriptor)

  { principal_id: principal[:id], identity_id: identity[:id] }
rescue StandardError => e
  handle_exception(e, level: :warn, handled: true, operation: 'official_record_writer.identity_resolution')
  {}
end

.resolve_parent_request_id(db, body) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 627

def resolve_parent_request_id(db, body)
  parent_ref = body[:parent_request_id] || body.dig(:context, :parent_request_id) || body.dig(:caller, :parent_request_ref)
  return nil unless present?(parent_ref)

  if parent_ref.is_a?(Integer)
    parent_ref
  else
    parent = db[:llm_message_inference_requests].where(request_ref: parent_ref.to_s).first
    parent&.dig(:id)
  end
end

.resolve_request_content_hash(body) ⇒ Object

Prefer precomputed hash from emitter (A4: hash ships instead of raw content). Falls back to computing from raw content for backward compatibility.



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 846

def resolve_request_content_hash(body)
  return body[:request_content_hash] if present?(body[:request_content_hash])

  compute_content_hash(body.dig(:request, :content) || body.dig(:audit, :request_content))
end

.resolve_response_content_hash(body) ⇒ Object

Prefer precomputed hash from emitter (A4: hash ships instead of raw content). Falls back to computing from raw content for backward compatibility.



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 854

def resolve_response_content_hash(body)
  return body[:response_content_hash] if present?(body[:response_content_hash])

  compute_content_hash(body[:response_content] || body.dig(:audit, :response_content))
end

.response_content(body) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 732

def response_content(body)
  vis = visible_response(body)
  return nil unless vis

  stringify_content(vis[:content] || vis.dig(:message, :content))
end

.runtime_caller_class(body) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 431

def runtime_caller_class(body)
  body.dig(:caller, :class) || body.dig(:caller, :caller_class) ||
    body.dig(:caller, :source_class) || body[:runtime_caller_class]
end

.runtime_caller_client(body) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 436

def runtime_caller_client(body)
  body.dig(:caller, :client) || body.dig(:caller, :user_agent) ||
    body[:runtime_caller_client]
end

.stable_uuid(value) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 772

def stable_uuid(value)
  raw = value.to_s
  return raw if raw.length <= 36

  hex = Digest::SHA256.hexdigest(raw)[0, 32]
  "#{hex[0, 8]}-#{hex[8, 4]}-#{hex[12, 4]}-#{hex[16, 4]}-#{hex[20, 12]}"
end

.stringify_content(content) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 795

def stringify_content(content)
  return nil if content.nil?
  return content if content.is_a?(String)

  json_dump(content)
end

.thinking_response(body) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 707

def thinking_response(body)
  thinking = body[:response_thinking] || body[:thinking]
  thinking ||= body.dig(:response, :thinking) if body[:response].is_a?(Hash)
  if thinking
    return { content: thinking } if thinking.is_a?(String)

    return thinking
  end

  content_str = body[:response_content] || body[:response] || body[:content]
  return nil unless content_str.is_a?(String)

  _clean, extracted = extract_inline_thinking(content_str)
  extracted ? { content: extracted } : nil
end

.tier(body) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 660

def tier(body)
  body[:tier] || body.dig(:routing, :tier)
end

.tokens(body) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 664

def tokens(body)
  raw = body[:tokens] || body
  input = integer(raw[:input_tokens] || raw[:input])
  output = integer(raw[:output_tokens] || raw[:output])
  thinking = integer(raw[:thinking_tokens] || raw[:thinking])
  total = integer(raw[:total_tokens] || raw[:total], default: input + output + thinking)

  { input_tokens: input, output_tokens: output, thinking_tokens: thinking, total_tokens: total }
end

.update_if_missing(updates, existing, key, value) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 311

def update_if_missing(updates, existing, key, value)
  updates[key] = value if existing[key].nil? && upsert_guard?(value)
end

.update_if_placeholder(updates, existing, key, value) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 315

def update_if_placeholder(updates, existing, key, value)
  return unless upsert_guard?(value)

  existing_val = existing[key]
  is_placeholder = ['{}', 'null'].include?(existing_val.to_s)
  updates[key] = value if is_placeholder
end

.upsert_guard?(value) ⇒ Boolean

Core guard: never upsert a value that is nil, empty string, or empty JSON object. This prevents a leaner message (e.g., metering) from overwriting valid data written by a richer message (e.g., prompt audit).

Returns:

  • (Boolean) 


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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 303

def upsert_guard?(value)
  return false if value.nil?
  return false if value.is_a?(String) && value.strip.empty?
  return false if value.to_s == '{}'

  true
end

.visible_response(body) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 694

def visible_response(body)
  response = body[:response] || body[:response_content] || body[:content]
  return nil if response.nil? || (response.is_a?(Hash) && response.empty?)

  if response.is_a?(String)
    clean, _thinking = extract_inline_thinking(response)
    return { content: clean }
  end
  return { content: response[:content] } if response.is_a?(Hash) && response.key?(:content)

  response.is_a?(Hash) ? response.except(:thinking) : { content: response.to_s }
end

.write_metering(payload) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 41

def write_metering(payload)
  body = deep_symbolize(payload)
  db = ::Legion::Data.connection
  result = nil

  db.transaction do
    conversation = find_or_create_conversation(db, body)
    request = find_or_create_request(db, conversation, nil, body)
    response = find_or_create_response(db, request, nil, body)
    metric = find_or_create_metric(db, request, response, body)
    OfficialRouteAttemptWriter.write_route_attempts(db, request, response, body)
    result = { result: :ok, request_id: request[:id], response_id: response[:id], metric_id: metric[:id] }
  end

  result
end

.write_prompt(payload) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/writers/official_record_writer.rb', line 21

def write_prompt(payload)
  body = deep_symbolize(payload)
  db = ::Legion::Data.connection
  result = nil

  db.transaction do
    conversation = find_or_create_conversation(db, body)
    user_message = find_or_create_user_message(db, conversation, body)
    request = find_or_create_request(db, conversation, user_message, body)
    response_message = find_or_create_response_message(db, conversation, request, body)
    response = find_or_create_response(db, request, response_message, body)
    link_response_message!(db, response_message, response)
    metric = find_or_create_metric(db, request, response, body)
    OfficialRouteAttemptWriter.write_route_attempts(db, request, response, body)
    result = { result: :ok, request_id: request[:id], response_id: response[:id], metric_id: metric[:id] }
  end

  result
end