Class: AIA::VariableInputCollector

Inherits:
Object
  • Object
show all
Defined in:
lib/aia/variable_input_collector.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ VariableInputCollector

Returns a new instance of VariableInputCollector.



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# File 'lib/aia/variable_input_collector.rb', line 8

def initialize
  # No prompt dependency — just handles user input for parameter collection
end

Instance Method Details

#request_variable_value(variable_name:, default_value: nil) ⇒ Object 



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# File 'lib/aia/variable_input_collector.rb', line 12

def request_variable_value(variable_name:, default_value: nil)
  Reline::HISTORY.clear

  question = if default_value.nil?
               "Value for #{variable_name} (required): "
             else
               "Value for #{variable_name} (#{default_value}): "
             end

  Reline.output = $stdout

  original_prompt_proc = Reline.line_editor.prompt_proc

  begin
    input = Reline.readline(question, true)

    if input.nil? # Ctrl+D
      return default_value if default_value
      raise AIA::Error, "Parameter '#{variable_name}' is required."
    end

    value = input.strip
    if value.empty?
      return default_value if default_value
      raise AIA::Error, "Parameter '#{variable_name}' is required."
    end

    value
  rescue Interrupt
    raise AIA::Error, "Variable input interrupted."
  ensure
    Reline.line_editor.prompt_proc = original_prompt_proc
  end
end