Module: Legion::LLM::API::Native::Tiers

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

Class Method Summary collapse

Class Method Details

.build_model_entry(offering) ⇒ Object 



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# File 'lib/legion/llm/api/native/tiers.rb', line 215

def self.build_model_entry(offering)
  {
    id:           offering[:model].to_s,
    offering_id:  offering[:offering_id] || offering[:id],
    type:         offering[:type].to_s,
    capabilities: Array(offering[:capabilities]).map(&:to_s),
    limits:       offering[:limits] || {},
    enabled:      offering[:enabled] != false,
    cost:         offering[:cost] || {},
    model_family: offering[:model_family]&.to_s
  }.compact
end

.build_tiers_tree ⇒ Object 



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# File 'lib/legion/llm/api/native/tiers.rb', line 179

def self.build_tiers_tree
  offerings = Legion::LLM::Inventory.offerings({})
  grouped = {}

  offerings.each do |offering|
    tier_name = (offering[:tier] || :unknown).to_s
    provider_name = (offering[:provider_family] || :unknown).to_s
    instance_name = (offering[:instance_id] || offering[:provider_instance] || :default).to_s

    grouped[tier_name] ||= { available: tier_available?(tier_name.to_sym), providers: {} }
    grouped[tier_name][:providers][provider_name] ||= { instances: {} }
    grouped[tier_name][:providers][provider_name][:instances][instance_name] ||= {
      health:       offering_instance_health(provider_name, instance_name),
      capabilities: [],
      models:       []
    }

    inst = grouped[tier_name][:providers][provider_name][:instances][instance_name]
    inst[:capabilities] = (inst[:capabilities] + Array(offering[:capabilities])).uniq.sort
    inst[:models] << build_model_entry(offering)
  end

  # Sort tiers by priority order
  priority = tier_priority
  sorted = {}
  priority.each { |t| sorted[t] = grouped.delete(t) if grouped.key?(t) }
  grouped.each { |t, v| sorted[t] = v }

  # Ensure all priority tiers appear even if empty
  priority.each do |t|
    sorted[t] ||= { available: tier_available?(t.to_sym), providers: {} }
  end

  sorted
end

.offering_instance_health(provider_name, instance_name) ⇒ Object 



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# File 'lib/legion/llm/api/native/tiers.rb', line 228

def self.offering_instance_health(provider_name, instance_name)
  return 'unknown' unless defined?(Legion::LLM::Router) && Legion::LLM::Router.respond_to?(:health_tracker)

  tracker = Legion::LLM::Router.health_tracker
  return 'unknown' unless tracker

  tracker.circuit_state(provider_name.to_sym, instance: instance_name.to_sym).to_s
rescue StandardError
  'unknown'
end

.privacy_mode? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/legion/llm/api/native/tiers.rb', line 167

def self.privacy_mode?
  return false unless defined?(Legion::LLM::Router)

  Legion::LLM::Router.respond_to?(:privacy_mode?) && Legion::LLM::Router.privacy_mode?
end

.registered(app) ⇒ Object

rubocop:disable Metrics/MethodLength,Metrics/AbcSize



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

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

  app.get '/api/llm/tiers' do
    require_llm!

    tiers_data = Legion::LLM::API::Native::Tiers.build_tiers_tree
    json_response({
                    tiers:        tiers_data,
                    priority:     Legion::LLM::API::Native::Tiers.tier_priority,
                    privacy_mode: Legion::LLM::API::Native::Tiers.privacy_mode?
                  })
  rescue StandardError => e
    handle_exception(e, level: :error, handled: true, operation: 'llm.api.tiers.list')
    json_error('tiers_error', e.message, status_code: 500)
  end

  app.get '/api/llm/tiers/:tier' do
    require_llm!

    tier_name = params[:tier].to_s
    tiers_data = Legion::LLM::API::Native::Tiers.build_tiers_tree
    tier = tiers_data[tier_name]
    halt json_error('tier_not_found', "Tier '#{tier_name}' not found", status_code: 404) unless tier

    json_response({ tier: tier_name, **tier })
  rescue StandardError => e
    handle_exception(e, level: :error, handled: true, operation: 'llm.api.tiers.get')
    json_error('tiers_error', e.message, status_code: 500)
  end

  app.get '/api/llm/tiers/:tier/providers' do
    require_llm!

    tier_name = params[:tier].to_s
    tiers_data = Legion::LLM::API::Native::Tiers.build_tiers_tree
    tier = tiers_data[tier_name]
    halt json_error('tier_not_found', "Tier '#{tier_name}' not found", status_code: 404) unless tier

    json_response({ tier: tier_name, providers: tier[:providers] })
  rescue StandardError => e
    handle_exception(e, level: :error, handled: true, operation: 'llm.api.tiers.providers')
    json_error('tiers_error', e.message, status_code: 500)
  end

  app.get '/api/llm/tiers/:tier/providers/:provider' do
    require_llm!

    tier_name = params[:tier].to_s
    provider_name = params[:provider].to_s
    tiers_data = Legion::LLM::API::Native::Tiers.build_tiers_tree
    tier = tiers_data[tier_name]
    halt json_error('tier_not_found', "Tier '#{tier_name}' not found", status_code: 404) unless tier

    provider = tier.dig(:providers, provider_name)
    halt json_error('provider_not_found', "Provider '#{provider_name}' not found in tier '#{tier_name}'", status_code: 404) unless provider

    json_response({ tier: tier_name, provider: provider_name, **provider })
  rescue StandardError => e
    handle_exception(e, level: :error, handled: true, operation: 'llm.api.tiers.provider')
    json_error('tiers_error', e.message, status_code: 500)
  end

  app.get '/api/llm/tiers/:tier/providers/:provider/instances' do
    require_llm!

    tier_name = params[:tier].to_s
    provider_name = params[:provider].to_s
    tiers_data = Legion::LLM::API::Native::Tiers.build_tiers_tree
    tier = tiers_data[tier_name]
    halt json_error('tier_not_found', "Tier '#{tier_name}' not found", status_code: 404) unless tier

    provider = tier.dig(:providers, provider_name)
    halt json_error('provider_not_found', "Provider '#{provider_name}' not found in tier '#{tier_name}'", status_code: 404) unless provider

    json_response({ tier: tier_name, provider: provider_name, instances: provider[:instances] })
  rescue StandardError => e
    handle_exception(e, level: :error, handled: true, operation: 'llm.api.tiers.instances')
    json_error('tiers_error', e.message, status_code: 500)
  end

  app.get '/api/llm/tiers/:tier/providers/:provider/instances/:instance' do
    require_llm!

    tier_name = params[:tier].to_s
    provider_name = params[:provider].to_s
    instance_name = params[:instance].to_s
    tiers_data = Legion::LLM::API::Native::Tiers.build_tiers_tree
    tier = tiers_data[tier_name]
    halt json_error('tier_not_found', "Tier '#{tier_name}' not found", status_code: 404) unless tier

    provider = tier.dig(:providers, provider_name)
    halt json_error('provider_not_found', "Provider '#{provider_name}' not found in tier '#{tier_name}'", status_code: 404) unless provider

    instance = provider.dig(:instances, instance_name)
    halt json_error('instance_not_found', "Instance '#{instance_name}' not found", status_code: 404) unless instance

    json_response({ tier: tier_name, provider: provider_name, instance: instance_name, **instance })
  rescue StandardError => e
    handle_exception(e, level: :error, handled: true, operation: 'llm.api.tiers.instance')
    json_error('tiers_error', e.message, status_code: 500)
  end

  app.get '/api/llm/tiers/:tier/providers/:provider/instances/:instance/models' do
    require_llm!

    tier_name = params[:tier].to_s
    provider_name = params[:provider].to_s
    instance_name = params[:instance].to_s
    tiers_data = Legion::LLM::API::Native::Tiers.build_tiers_tree
    tier = tiers_data[tier_name]
    halt json_error('tier_not_found', "Tier '#{tier_name}' not found", status_code: 404) unless tier

    provider = tier.dig(:providers, provider_name)
    halt json_error('provider_not_found', "Provider '#{provider_name}' not found in tier '#{tier_name}'", status_code: 404) unless provider

    instance = provider.dig(:instances, instance_name)
    halt json_error('instance_not_found', "Instance '#{instance_name}' not found", status_code: 404) unless instance

    json_response({ tier: tier_name, provider: provider_name, instance: instance_name, models: instance[:models] })
  rescue StandardError => e
    handle_exception(e, level: :error, handled: true, operation: 'llm.api.tiers.instance_models')
    json_error('tiers_error', e.message, status_code: 500)
  end

  app.get '/api/llm/tiers/:tier/providers/:provider/models' do
    require_llm!

    tier_name = params[:tier].to_s
    provider_name = params[:provider].to_s
    tiers_data = Legion::LLM::API::Native::Tiers.build_tiers_tree
    tier = tiers_data[tier_name]
    halt json_error('tier_not_found', "Tier '#{tier_name}' not found", status_code: 404) unless tier

    provider = tier.dig(:providers, provider_name)
    halt json_error('provider_not_found', "Provider '#{provider_name}' not found in tier '#{tier_name}'", status_code: 404) unless provider

    all_models = provider[:instances].values.flat_map { |inst| inst[:models] }
    seen = {}
    unique_models = all_models.select { |m| seen[m[:id]] ? false : (seen[m[:id]] = true) }

    json_response({ tier: tier_name, provider: provider_name, models: unique_models })
  rescue StandardError => e
    handle_exception(e, level: :error, handled: true, operation: 'llm.api.tiers.provider_models')
    json_error('tiers_error', e.message, status_code: 500)
  end

  log.debug('[llm][api][tiers] tier routes registered')
end

.tier_available?(tier_sym) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/legion/llm/api/native/tiers.rb', line 173

def self.tier_available?(tier_sym)
  return true unless defined?(Legion::LLM::Router) && Legion::LLM::Router.respond_to?(:tier_available?)

  Legion::LLM::Router.tier_available?(tier_sym)
end

.tier_priority ⇒ Object 



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# File 'lib/legion/llm/api/native/tiers.rb', line 162

def self.tier_priority
  routing_config = Legion::LLM::Settings.value(:routing) || {}
  Array(routing_config[:tier_priority] || %w[local fleet openai_compat cloud frontier])
end