Module: Legion::LLM::API::Namespaces::OpenAI::Conversations::Items

Extended by:
Legion::Logging::Helper
Defined in:
lib/legion/llm/api/namespaces/openai/conversations/items.rb

Class Method Summary collapse

Class Method Details

.registered(app) ⇒ Object

rubocop:disable Metrics/AbcSize,Metrics/MethodLength



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# File 'lib/legion/llm/api/namespaces/openai/conversations/items.rb', line 17

def self.registered(app) # rubocop:disable Metrics/AbcSize,Metrics/MethodLength
  log.debug('[llm][api][namespaces][openai][items] registering routes')

  # POST /v1/conversations/:id/items
  app.post '/v1/conversations/:id/items' do
    require_llm!
    conv_id = params[:id]
    body    = parse_request_body
    validate_required!(body, :role, :content)

    unless Inference::Conversation.conversation_exists?(conv_id)
      halt 404, { 'Content-Type' => 'application/json' },
           Legion::JSON.dump({ error: { message: "Conversation '#{conv_id}' not found.",
                                        type: 'invalid_request_error', code: 'conversation_not_found' } })
    end

    role    = body[:role].to_sym
    content = body[:content]

    msg = Inference::Conversation.append(conv_id, role: role, content: content)
    log.debug("[llm][api][openai][items] action=create conv_id=#{conv_id} item_id=#{msg[:id]} role=#{role}")

    content_type :json
    status 200
    Legion::JSON.dump({
                        id:         msg[:id],
                        object:     'conversation.item',
                        conv_id:    conv_id,
                        role:       role.to_s,
                        content:    content,
                        created_at: msg[:created_at].to_i
                      })
  rescue StandardError => e
    handle_exception(e, level: :error, handled: false, operation: 'llm.api.openai.items.create')
    openai_error(e.message, type: 'server_error', code: 'internal_error', status_code: 500)
  end

  # GET /v1/conversations/:id/items (list)
  app.get '/v1/conversations/:id/items' do
    require_llm!
    conv_id = params[:id]
    limit   = params[:limit]&.to_i || 100
    after   = params[:after]

    unless Inference::Conversation.conversation_exists?(conv_id)
      halt 404, { 'Content-Type' => 'application/json' },
           Legion::JSON.dump({ error: { message: "Conversation '#{conv_id}' not found.",
                                        type: 'invalid_request_error', code: 'conversation_not_found' } })
    end

    # Check conversation tombstone
    conv_meta = Inference::Conversation.read_metadata(conv_id) || {}
    if conv_meta[:title] == '__deleted__'
      halt 404, { 'Content-Type' => 'application/json' },
           Legion::JSON.dump({ error: { message: "Conversation '#{conv_id}' not found.",
                                        type: 'invalid_request_error', code: 'conversation_not_found' } })
    end

    msgs = Inference::Conversation.messages(conv_id)
    msgs = msgs.reject { |m| m[:__deleted__] }

    if after
      idx = msgs.index { |m| m[:id] == after }
      msgs = msgs[(idx + 1)..] if idx
    end

    msgs = msgs.first(limit)
    log.debug("[llm][api][openai][items] action=list conv_id=#{conv_id} count=#{msgs.size}")

    content_type :json
    status 200
    Legion::JSON.dump({
                        object:   'list',
                        data:     msgs.map { |m| Items.serialize_item(m, conv_id) },
                        has_more: false,
                        first_id: msgs.first&.dig(:id),
                        last_id:  msgs.last&.dig(:id)
                      })
  rescue StandardError => e
    handle_exception(e, level: :error, handled: false, operation: 'llm.api.openai.items.list')
    openai_error(e.message, type: 'server_error', code: 'internal_error', status_code: 500)
  end

  # GET /v1/conversations/:id/items/:item_id
  app.get '/v1/conversations/:id/items/:item_id' do
    require_llm!
    conv_id = params[:id]
    item_id = params[:item_id]

    unless Inference::Conversation.conversation_exists?(conv_id)
      halt 404, { 'Content-Type' => 'application/json' },
           Legion::JSON.dump({ error: { message: "Conversation '#{conv_id}' not found.",
                                        type: 'invalid_request_error', code: 'conversation_not_found' } })
    end

    msgs = Inference::Conversation.raw_messages(conv_id)
    msg  = msgs.find { |m| m[:id] == item_id }

    unless msg
      halt 404, { 'Content-Type' => 'application/json' },
           Legion::JSON.dump({ error: { message: "Item '#{item_id}' not found.",
                                        type: 'invalid_request_error', code: 'item_not_found' } })
    end

    log.debug("[llm][api][openai][items] action=get item_id=#{item_id}")
    content_type :json
    status 200
    Legion::JSON.dump(Items.serialize_item(msg, conv_id))
  rescue StandardError => e
    handle_exception(e, level: :error, handled: false, operation: 'llm.api.openai.items.get')
    openai_error(e.message, type: 'server_error', code: 'internal_error', status_code: 500)
  end

  # DELETE /v1/conversations/:id/items/:item_id
  app.delete '/v1/conversations/:id/items/:item_id' do
    require_llm!
    conv_id = params[:id]
    item_id = params[:item_id]

    unless Inference::Conversation.conversation_exists?(conv_id)
      halt 404, { 'Content-Type' => 'application/json' },
           Legion::JSON.dump({ error: { message: "Conversation '#{conv_id}' not found.",
                                        type: 'invalid_request_error', code: 'conversation_not_found' } })
    end

    msgs = Inference::Conversation.raw_messages(conv_id)
    msg  = msgs.find { |m| m[:id] == item_id }

    unless msg
      halt 404, { 'Content-Type' => 'application/json' },
           Legion::JSON.dump({ error: { message: "Item '#{item_id}' not found.",
                                        type: 'invalid_request_error', code: 'item_not_found' } })
    end

    # Tombstone: mark deleted; item stays in chain but hidden from normal list
    msg[:__deleted__] = true
    log.debug("[llm][api][openai][items] action=delete item_id=#{item_id}")

    content_type :json
    status 200
    Legion::JSON.dump({ id: item_id, object: 'conversation.item', deleted: true })
  rescue StandardError => e
    handle_exception(e, level: :error, handled: false, operation: 'llm.api.openai.items.delete')
    openai_error(e.message, type: 'server_error', code: 'internal_error', status_code: 500)
  end

  log.debug('[llm][api][namespaces][openai][items] routes registered')
rescue StandardError => e
  handle_exception(e, level: :error, handled: false, operation: 'llm.api.openai.items.register')
end

.serialize_item(msg, conv_id) ⇒ Object 



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# File 'lib/legion/llm/api/namespaces/openai/conversations/items.rb', line 168

def self.serialize_item(msg, conv_id)
  {
    id:         msg[:id],
    object:     'conversation.item',
    conv_id:    conv_id,
    role:       msg[:role].to_s,
    content:    msg[:content],
    created_at: msg[:created_at]&.to_i
  }
end