Class: N2B::ModelConfig

Inherits:
Object
  • Object
show all
Defined in:
lib/n2b/model_config.rb

Constant Summary collapse

CONFIG_PATH = 
File.expand_path('config/models.yml', __dir__)

Class Method Summary collapse

Class Method Details

.default_model(provider) ⇒ Object 



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# File 'lib/n2b/model_config.rb', line 29

def self.default_model(provider)
  load_models.dig(provider, 'default')
end

.display_model_options(provider) ⇒ Object 



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# File 'lib/n2b/model_config.rb', line 47

def self.display_model_options(provider)
  suggested = suggested_models(provider)
  default = default_model(provider)
  
  options = []
  suggested.each_with_index do |(key, api_name), index|
    default_marker = key == default ? " [default]" : ""
    options << "#{index + 1}. #{key} (#{api_name})#{default_marker}"
  end
  options << "#{suggested.size + 1}. custom (enter your own model name)"
  
  options
end

.fallback_models ⇒ Object 



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# File 'lib/n2b/model_config.rb', line 15

def self.fallback_models
  {
    'claude' => { 'suggested' => { 'sonnet' => 'claude-3-sonnet-20240229' }, 'default' => 'sonnet' },
    'openai' => { 'suggested' => { 'gpt-4o-mini' => 'gpt-4o-mini' }, 'default' => 'gpt-4o-mini' },
    'gemini' => { 'suggested' => { 'gemini-flash' => 'gemini-2.0-flash' }, 'default' => 'gemini-flash' },
    'openrouter' => { 'suggested' => { 'gpt-4o' => 'openai/gpt-4o' }, 'default' => 'gpt-4o' },
    'ollama' => { 'suggested' => { 'llama3' => 'llama3' }, 'default' => 'llama3' }
  }
end

.get_model_choice(provider, current_model = nil) ⇒ Object 



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# File 'lib/n2b/model_config.rb', line 61

def self.get_model_choice(provider, current_model = nil)
  options = display_model_options(provider)
  suggested = suggested_models(provider)
  default = default_model(provider)
  
  puts "\nChoose a model for #{provider}:"
  options.each { |option| puts "  #{option}" }
  
  current_display = current_model || default
  print "\nEnter choice (1-#{options.size}) or model name [#{current_display}]: "
  
  input = $stdin.gets.chomp
  
  # If empty input, use current or default
  if input.empty?
    return current_model || resolve_model(provider, default)
  end
  
  # If numeric input, handle menu selection
  if input.match?(/^\d+$/)
    choice_num = input.to_i
    if choice_num >= 1 && choice_num <= suggested.size
      # Selected a suggested model
      selected_key = suggested.keys[choice_num - 1]
      return resolve_model(provider, selected_key)
    elsif choice_num == suggested.size + 1
      # Selected custom option
      print "Enter custom model name: "
      custom_model = $stdin.gets.chomp
      if custom_model.empty?
        puts "Custom model name cannot be empty. Using default."
        return resolve_model(provider, default)
      end
      puts "✓ Using custom model: #{custom_model}"
      return custom_model
    else
      puts "Invalid choice. Using default."
      return resolve_model(provider, default)
    end
  else
    # Direct model name input - validate it first
    if is_valid_model_name?(input)
      resolved = resolve_model(provider, input)
      if suggested.key?(input)
        puts "✓ Using suggested model: #{input} (#{resolved})"
      else
        puts "✓ Using custom model: #{resolved}"
      end
      return resolved
    else
      puts "Invalid model name '#{input}'. Model names should be meaningful (at least 3 characters, no single letters)."
      puts "Using default model instead."
      return resolve_model(provider, default)
    end
  end
end

.load_models ⇒ Object 



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# File 'lib/n2b/model_config.rb', line 7

def self.load_models
  @models ||= YAML.load_file(CONFIG_PATH)
rescue => e
  puts "Warning: Could not load models configuration: #{e.message}"
  puts "Using fallback model configuration."
  fallback_models
end

.resolve_model(provider, user_input) ⇒ Object 



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# File 'lib/n2b/model_config.rb', line 33

def self.resolve_model(provider, user_input)
  return nil if user_input.nil? || user_input.empty?
  
  suggested = suggested_models(provider)
  
  # If user input matches a suggested model key, return the API name
  if suggested.key?(user_input)
    suggested[user_input]
  else
    # Otherwise, treat as custom model (return as-is)
    user_input
  end
end

.suggested_models(provider) ⇒ Object 



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# File 'lib/n2b/model_config.rb', line 25

def self.suggested_models(provider)
  load_models.dig(provider, 'suggested') || {}
end