Module: Legion::LLM::API::Native::Models

Extended by:
Legion::Logging::Helper
Defined in:
lib/legion/llm/api/native/models.rb

Class Method Summary collapse

Class Method Details

.model_summaries(offerings) ⇒ Object 



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# File 'lib/legion/llm/api/native/models.rb', line 83

def self.model_summaries(offerings)
  summaries = offerings.group_by { |offering| offering[:model] }.map do |model, rows|
    summarize_model(model, rows)
  end
  summaries.sort_by { |model| model[:id] }
end

.registered(app) ⇒ Object 



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# File 'lib/legion/llm/api/native/models.rb', line 12

def self.registered(app)
  log.debug('[llm][api][models] registering model inventory routes')

  app.get '/api/llm/models' do
    log.debug('[llm][api][models] action=list_models')
    require_llm!

    filters = Legion::LLM::API::Native::Models.request_filters(params)
    offerings = Legion::LLM::Inventory.offerings(filters)

    json_response({
                    models:    Legion::LLM::API::Native::Models.model_summaries(offerings),
                    offerings: offerings,
                    summary:   Legion::LLM::API::Native::Models.summary(offerings)
                  })
  rescue StandardError => e
    handle_exception(e, level: :error, handled: true, operation: 'llm.api.models.list')
    json_error('model_inventory_error', e.message, status_code: 500)
  end

  app.get '/api/llm/models/:id' do
    model_id = params[:id]
    log.debug("[llm][api][models] action=get_model id=#{model_id}")
    require_llm!

    offerings = Legion::LLM::Inventory.offerings(model: model_id)
    halt json_error('model_not_found', "Model '#{model_id}' not found", status_code: 404) unless offerings.any?

    json_response({
                    model:     Legion::LLM::API::Native::Models.summarize_model(model_id, offerings),
                    offerings: offerings
                  })
  rescue StandardError => e
    handle_exception(e, level: :error, handled: true, operation: 'llm.api.models.get')
    json_error('model_inventory_error', e.message, status_code: 500)
  end

  app.get '/api/llm/providers/:name/models' do
    provider = params[:name]
    log.debug("[llm][api][models] action=list_provider_models provider=#{provider}")
    require_llm!

    filters = Legion::LLM::API::Native::Models.request_filters(params).merge(provider: provider)
    offerings = Legion::LLM::Inventory.offerings(filters)

    json_response({
                    provider:  provider,
                    models:    Legion::LLM::API::Native::Models.model_summaries(offerings),
                    offerings: offerings,
                    summary:   Legion::LLM::API::Native::Models.summary(offerings)
                  })
  rescue StandardError => e
    handle_exception(e, level: :error, handled: true, operation: 'llm.api.models.provider')
    json_error('model_inventory_error', e.message, status_code: 500)
  end

  log.debug('[llm][api][models] model inventory routes registered')
end

.request_filters(params) ⇒ Object 



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# File 'lib/legion/llm/api/native/models.rb', line 71

def self.request_filters(params)
  {
    provider:     params[:provider],
    instance_id:  params[:instance_id] || params[:instance],
    type:         params[:type] || params[:purpose],
    model:        params[:model],
    offering_id:  params[:offering_id],
    model_family: params[:model_family],
    capability:   params[:capability]
  }
end

.summarize_model(model, offerings) ⇒ Object 



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# File 'lib/legion/llm/api/native/models.rb', line 90

def self.summarize_model(model, offerings)
  {
    id:             model.to_s,
    types:          offerings.map { |offering| offering[:type].to_s }.uniq.sort,
    providers:      offerings.map { |offering| offering[:provider_family] }.uniq.sort,
    model_families: offerings.filter_map { |offering| offering[:model_family] }.uniq.sort,
    offering_ids:   offerings.filter_map { |offering| offering[:offering_id] }.uniq.sort,
    instances:      offerings.map { |offering| offering[:instance_id] }.uniq.sort,
    capabilities:   offerings.flat_map { |offering| offering[:capabilities] }.uniq.sort,
    max_context:    offerings.filter_map { |offering| offering.dig(:limits, :context_window) }.max,
    enabled:        offerings.any? { |offering| offering[:enabled] != false }
  }
end

.summary(offerings) ⇒ Object 



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# File 'lib/legion/llm/api/native/models.rb', line 104

def self.summary(offerings)
  {
    total_offerings: offerings.size,
    models:          offerings.map { |offering| offering[:model] }.uniq.size,
    providers:       offerings.map { |offering| offering[:provider_family] }.uniq.size,
    by_type:         offerings.group_by { |offering| offering[:type].to_s }
                              .transform_values(&:size)
  }
end