Class: Roast::Workflow::RepeatStep

Inherits:
BaseIterationStep show all
Defined in:
lib/roast/workflow/repeat_step.rb

Overview

Executes steps repeatedly until a condition is met or max_iterations is reached

Constant Summary

Constants inherited from BaseIterationStep

BaseIterationStep::DEFAULT_MAX_ITERATIONS

Instance Attribute Summary collapse

Attributes inherited from BaseIterationStep

#config_hash, #steps

Attributes inherited from BaseStep

#available_tools, #coerce_to, #context_path, #json, #model, #name, #params, #print_response, #resource, #workflow

Instance Method Summary collapse

Methods included from ExpressionUtils

#bash_command?, #extract_command, #extract_expression, #ruby_expression?

Constructor Details

#initialize(workflow, steps:, until_condition:, max_iterations: DEFAULT_MAX_ITERATIONS, **kwargs) ⇒ RepeatStep

Returns a new instance of RepeatStep.



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# File 'lib/roast/workflow/repeat_step.rb', line 9

def initialize(workflow, steps:, until_condition:, max_iterations: DEFAULT_MAX_ITERATIONS, **kwargs)
  super(workflow, steps: steps, **kwargs)
  @until_condition = until_condition
  @max_iterations = max_iterations.to_i

  # Ensure max_iterations is at least 1
  @max_iterations = 1 if @max_iterations < 1
end

Instance Attribute Details

#max_iterations ⇒ Object (readonly)

Returns the value of attribute max_iterations.



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# File 'lib/roast/workflow/repeat_step.rb', line 7

def max_iterations
  @max_iterations
end

#until_condition ⇒ Object (readonly)

Returns the value of attribute until_condition.



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# File 'lib/roast/workflow/repeat_step.rb', line 7

def until_condition
  @until_condition
end

Instance Method Details

#call ⇒ Object 



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# File 'lib/roast/workflow/repeat_step.rb', line 18

def call
  iteration = 0
  results = []

  $stderr.puts "Starting repeat loop with max_iterations: #{@max_iterations}"

  begin
    # Loop until condition is met or max_iterations is reached
    # Process the until_condition based on its type with configured coercion
    until process_iteration_input(@until_condition, workflow, coerce_to: @coerce_to) || (iteration >= @max_iterations)
      $stderr.puts "Repeat loop iteration #{iteration + 1}"

      # Execute the nested steps
      step_results = execute_nested_steps(@steps, workflow)
      results << step_results

      # Increment iteration counter
      iteration += 1

      # Save state after each iteration if the workflow supports it
      save_iteration_state(iteration) if workflow.respond_to?(:session_name) && workflow.session_name
    end

    if iteration >= @max_iterations
      $stderr.puts "Repeat loop reached maximum iterations (#{@max_iterations})"
    else
      $stderr.puts "Repeat loop condition satisfied after #{iteration} iterations"
    end

    # Return the results of all iterations
    results
  rescue => e
    $stderr.puts "Error in repeat loop: #{e.message}"
    raise
  end
end