Module: RubyLLM::Text::Base

Defined in:
lib/ruby_llm/text/base.rb

Class Method Summary collapse

Class Method Details

.build_schema(schema) ⇒ Object 



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# File 'lib/ruby_llm/text/base.rb', line 60

def self.build_schema(schema)
  # If already a schema object, return as-is
  return schema if schema.respond_to?(:schema)

  return nil unless schema.is_a?(Hash)

  schema_class = Class.new(RubyLLM::Schema)

  # Handle JSON Schema-style hashes (e.g., {type: "object", properties: {...}})
  # Check both symbol and string keys to handle parsed JSON
  schema_type = schema[:type] || schema["type"]
  schema_properties = schema[:properties] || schema["properties"]

  if schema_type == "object" && schema_properties
    required_fields = schema[:required] || schema["required"] || []

    schema_properties.each do |field, spec|
      # Build constraint options
      constraints = {}

      # Handle required fields
      constraints[:required] = required_fields.include?(field.to_s) || required_fields.include?(field)

      # Extract constraints from spec
      [ :enum, :minimum, :maximum ].each do |constraint|
        value = spec[constraint] || spec[constraint.to_s]
        constraints[constraint] = value if value
      end

      # Handle oneOf union types - default to string for compatibility
      # Check both symbol and string keys
      if spec[:oneOf] || spec["oneOf"]
        schema_class.string field, **constraints # Use string as most flexible type
      else
        case spec[:type] || spec["type"]
        when "string"
          schema_class.string field, **constraints
        when "number", "integer"
          schema_class.number field, **constraints
        when "boolean"
          schema_class.boolean field, **constraints
        when "array"
          # Handle array with items specification
          items_spec = spec[:items] || spec["items"]
          if items_spec
            items_type = items_spec[:type] || items_spec["type"]
            case items_type
            when "string"
              schema_class.array field, :string, **constraints
            when "number", "integer"
              schema_class.array field, :number, **constraints
            when "boolean"
              schema_class.array field, :boolean, **constraints
            else
              schema_class.array field, :string, **constraints
            end
          else
            schema_class.array field, :string, **constraints
          end
        else
          schema_class.string field, **constraints # fallback to string
        end
      end
    end
  else
    # Handle simple symbol-based schemas (e.g., {name: :string, age: :integer})
    schema.each do |field, type|
      case type
      when :string
        schema_class.string field
      when :integer, :number
        schema_class.number field
      when :boolean
        schema_class.boolean field
      when :array
        schema_class.array field
      else
        schema_class.string field # fallback to string
      end
    end
  end

  schema_class
end

.call_llm(prompt, model: nil, temperature: nil, schema: nil, **options) ⇒ Object 



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# File 'lib/ruby_llm/text/base.rb', line 4

def self.call_llm(prompt, model: nil, temperature: nil, schema: nil, **options)
  model ||= RubyLLM.config.default_model
  temperature ||= RubyLLM::Text.config.temperature

  chat = RubyLLM.chat(model: model)
  chat = chat.with_temperature(temperature)
  if schema
    # Convert plain Hash schemas to RubyLLM::Schema objects if needed
    schema_obj = build_schema(schema)
    chat = chat.with_schema(schema_obj)
  end

  # Apply any additional options
  options.each do |key, value|
    method_name = "with_#{key}"
    chat = chat.send(method_name, value) if chat.respond_to?(method_name)
  end

  response = chat.ask(prompt)
  response.content
rescue => e
  raise RubyLLM::Text::Error, "LLM call failed: #{e.message}"
end

.clean_json_response(response) ⇒ Object 



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# File 'lib/ruby_llm/text/base.rb', line 28

def self.clean_json_response(response)
  # Remove markdown code block formatting if present
  cleaned = response.gsub(/^```json\n/, "").gsub(/\n```$/, "").strip

  # If still no JSON, try to extract JSON from mixed content
  if !cleaned.start_with?("{") && cleaned.include?("{")
    # Find JSON object in the response with proper brace matching
    brace_count = 0
    start_pos = cleaned.index("{")
    if start_pos
      end_pos = start_pos
      cleaned[start_pos..-1].each_char.with_index(start_pos) do |char, i|
        if char == "{"
          brace_count += 1
        elsif char == "}"
          brace_count -= 1
          if brace_count == 0
            end_pos = i
            break
          end
        end
      end

      if brace_count == 0
        cleaned = cleaned[start_pos..end_pos]
      end
    end
  end

  cleaned
end