Class: RailsActiveMcp::ConsoleExecutor

Inherits:
Object
  • Object
show all
Defined in:
lib/rails_active_mcp/console_executor.rb

Overview

rubocop:disable Metrics/ClassLength

Defined Under Namespace

Classes: ExecutionError, ThreadSafetyError

Constant Summary collapse

EXECUTION_MUTEX = 
Mutex.new

Instance Method Summary collapse

Constructor Details

#initialize(config) ⇒ ConsoleExecutor

Returns a new instance of ConsoleExecutor.



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# File 'lib/rails_active_mcp/console_executor.rb', line 18

def initialize(config)
  @config = config
  @safety_checker = config.safety_checker.new(config)
end

Instance Method Details

#build_model_columns(model_class) ⇒ Object 



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# File 'lib/rails_active_mcp/console_executor.rb', line 188

def build_model_columns(model_class)
  model_class.columns.map do |column|
    {
      name: column.name,
      type: column.type,
      primary: column.name == model_class.primary_key
    }
  end
end

#build_model_enums(model_class) ⇒ Object 



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# File 'lib/rails_active_mcp/console_executor.rb', line 212

def build_model_enums(model_class)
  return {} unless model_class.respond_to?(:defined_enums)

  model_class.defined_enums.transform_values do |mapping|
    mapping.transform_values(&:to_s)
  end
end

#build_model_reflections(model_class) ⇒ Object 



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# File 'lib/rails_active_mcp/console_executor.rb', line 178

def build_model_reflections(model_class)
  model_class.reflect_on_all_associations.map do |association|
    {
      name: association.name,
      type: association.macro,
      class_name: association.class_name
    }
  end
end

#build_model_validator_info(model_class) ⇒ Object 



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# File 'lib/rails_active_mcp/console_executor.rb', line 198

def build_model_validator_info(model_class)
  if model_class.respond_to?(:validators)
    model_class.validators.map do |validator|
      {
        type: validator.class.name,
        attributes: validator.attributes,
        options: validator.options
      }
    end
  else
    []
  end
end

#dry_run(code) ⇒ Object 



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# File 'lib/rails_active_mcp/console_executor.rb', line 220

def dry_run(code)
  # Analyze without executing
  safety_analysis = @safety_checker.analyze(code)

  {
    code: code,
    safety_analysis: safety_analysis,
    would_execute: safety_analysis[:safe] || !@config.safe_mode,
    estimated_risk: estimate_risk(safety_analysis),
    recommendations: generate_recommendations(safety_analysis)
  }
end

#execute(code, timeout: nil, safe_mode: nil, capture_output: true) ⇒ Object 



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# File 'lib/rails_active_mcp/console_executor.rb', line 23

def execute(code, timeout: nil, safe_mode: nil, capture_output: true)
  timeout ||= @config.command_timeout
  safe_mode = @config.safe_mode if safe_mode.nil?

  # Pre-execution safety check
  if safe_mode
    safety_analysis = @safety_checker.analyze(code)
    raise RailsActiveMcp::SafetyError, "Code failed safety check: #{safety_analysis[:summary]}" unless safety_analysis[:safe]
  end

  # Log execution if enabled
  log_execution(code) if @config.log_executions

  # Execute with Rails 7.1 compatible thread safety
  result = execute_with_rails_executor(code, timeout, capture_output)

  # Post-execution processing
  process_result(result)
rescue RailsActiveMcp::SafetyError => e
  {
    success: false,
    error: e.message,
    error_class: 'SafetyError',
    code: code
  }
end

#execute_safe_query(model:, method:, args: [], where: nil, limit: nil) ⇒ Object 



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# File 'lib/rails_active_mcp/console_executor.rb', line 50

def execute_safe_query(model:, method:, args: [], where: nil, limit: nil)
  limit ||= @config.max_results

  begin
    # Validate model access
    raise RailsActiveMcp::SafetyError, "Access to model '#{model}' is not allowed" unless @config.model_allowed?(model)

    # Validate method safety
    raise RailsActiveMcp::SafetyError, "Method '#{method}' is not allowed for safe queries" unless safe_query_method?(method)

    # Execute with proper Rails executor and connection management
    execute_with_rails_executor_and_connection do
      model_class = model.to_s.constantize

      # Build base relation, applying optional WHERE conditions
      relation = model_class
      relation = relation.where(where) if where.is_a?(Hash) && where.any?

      # Build and execute query
      query = if args.empty?
                relation.public_send(method)
              else
                relation.public_send(method, *args)
              end

      # Apply limit for enumerable results
      query = query.limit(limit) if query.respond_to?(:limit) && !count_method?(method)

      result = execute_query_with_timeout(query)

      {
        success: true,
        model: model,
        method: method,
        args: args,
        where: where,
        result: serialize_result(result),
        count: calculate_count(result),
        executed_at: Time.now
      }
    end
  rescue RailsActiveMcp::SafetyError => e
    {
      success: false,
      error: e.message,
      error_class: 'SafetyError',
      model: model,
      method: method,
      args: args,
      where: where
    }
  rescue StandardError => e
    log_error(e, { model: model, method: method, args: args, where: where })
    {
      success: false,
      error: e.message,
      error_class: e.class.name,
      model: model,
      method: method,
      args: args,
      where: where
    }
  end
end

#get_model_info(model_name) ⇒ Object 



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# File 'lib/rails_active_mcp/console_executor.rb', line 115

def get_model_info(model_name)
  # Validate model access
  unless @config.model_allowed?(model_name)
    return {
      success: false,
      error: "Access to model '#{model_name}' is not allowed",
      error_class: 'SafetyError',
      model_name: model_name
    }
  end

  execute_with_rails_executor_and_connection do
    model_class = model_name.to_s.constantize

    # Ensure it's an ActiveRecord model
    unless model_class.respond_to?(:columns) && model_class.respond_to?(:reflect_on_all_associations)
      raise RailsActiveMcp::SafetyError, "#{model_name} is not a valid ActiveRecord model"
    end

    # Extract model information
    columns_info = build_model_columns(model_class)

    associations_info = build_model_reflections(model_class)

    validators_info = build_model_validator_info(model_class)

    enums_info = build_model_enums(model_class)

    {
      success: true,
      model_name: model_name,
      table_name: model_class.table_name,
      primary_key: model_class.primary_key,
      columns: columns_info,
      associations: associations_info,
      validators: validators_info,
      enums: enums_info,
      extracted_at: Time.now
    }
  end
rescue RailsActiveMcp::SafetyError => e
  {
    success: false,
    error: e.message,
    error_class: 'SafetyError',
    model_name: model_name
  }
rescue NameError => e
  {
    success: false,
    error: "Model '#{model_name}' not found: #{e.message}",
    error_class: 'NameError',
    model_name: model_name
  }
rescue StandardError => e
  {
    success: false,
    error: e.message,
    error_class: e.class.name,
    model_name: model_name
  }
end