module CodeHealer
  class BusinessLogicGenerator
    class << self
      def generate_from_description(description, target_class, method_name)
        new(description, target_class, method_name).generate
      end
    end

    attr_reader :description, :target_class, :method_name, :logger

    def initialize(description, target_class, method_name)
      @description = description
      @target_class = target_class
      @method_name = method_name
      @logger = Logger.new(Rails.root.join('log', 'self_evolving.log'))
    end

    def generate
      return false unless valid_description?

      begin
        method_definition = generate_method_definition
        return false unless valid_method?(method_definition)

        success = Core.evolve_method(target_class, method_name, {
          description: description,
          generated_at: Time.current
        })

        if success
          log_successful_generation
          true
        else
          log_failed_generation
          false
        end
      rescue => e
        logger.error("Business logic generation failed: #{e.message}")
        false
      end
    end

    private

    def valid_description?
      # Implement your validation logic here
      # For example: minimum length, required keywords, etc.
      description.present? && description.length >= 10
    end

    def generate_method_definition
      # This is where you'd integrate with your AI system
      # For now, we'll return a simple placeholder
      <<~RUBY
        def #{method_name}
          # Generated from description: #{description}
          # TODO: Implement actual business logic
          true
        end
      RUBY
    end

    def valid_method?(method)
      # Basic syntax validation
      begin
        RubyVM::InstructionSequence.compile(method)
        true
      rescue SyntaxError => e
        logger.error("Invalid method syntax: #{e.message}")
        false
      end
    end

    def log_successful_generation
      logger.info({
        timestamp: Time.current,
        event: 'successful_generation',
        class: target_class.name,
        method: method_name,
        description: description
      }.to_json)
    end

    def log_failed_generation
      logger.info({
        timestamp: Time.current,
        event: 'failed_generation',
        class: target_class.name,
        method: method_name,
        description: description
      }.to_json)
    end
  end
end 