Class: InputSequencer

Inherits:
Object show all
Defined in:
lib/input_sequencer.rb

Overview

InputSequencer manages the sequence of menu interactions and block executions based on user input.

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(document_filename, initial_blocks = nil) ⇒ InputSequencer

Returns a new instance of InputSequencer.



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# File 'lib/input_sequencer.rb', line 18

def initialize(document_filename, initial_blocks = nil)
  @document_filename = document_filename
  @current_block = nil
  @block_queue = initial_blocks
  @debug = Env::env_bool('INPUT_SEQUENCER_DEBUG', default: false) ### false e
end

Instance Attribute Details

#block_queue ⇒ Object (readonly)

self.prepend InstanceMethodWrapper # traps initialize as well



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# File 'lib/input_sequencer.rb', line 16

def block_queue
  @block_queue
end

#current_block ⇒ Object (readonly)

self.prepend InstanceMethodWrapper # traps initialize as well



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# File 'lib/input_sequencer.rb', line 16

def current_block
  @current_block
end

#document_filename ⇒ Object (readonly)

self.prepend InstanceMethodWrapper # traps initialize as well



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# File 'lib/input_sequencer.rb', line 16

def document_filename
  @document_filename
end

Class Method Details

Merges the current menu state with the next, prioritizing the next state’s values.



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# File 'lib/input_sequencer.rb', line 26

def self.merge_link_state(current, next_state)
  MarkdownExec::LinkState.new(
    block_name: next_state.block_name,
    display_menu: next_state.display_menu.nil? ? current.display_menu : next_state.display_menu,
    document_filename: next_state.document_filename || current.document_filename,
    inherited_block_names: next_state.inherited_block_names,
    inherited_dependencies: next_state.inherited_dependencies,
    inherited_lines: next_state.inherited_lines,
    prior_block_was_link: next_state.prior_block_was_link.nil? ? current.prior_block_was_link : next_state.prior_block_was_link
  )
rescue
  pp backtrace
  binding.irb
end

.next_link_state(block_name: nil, display_menu: nil, document_filename: nil, prior_block_was_link: false) ⇒ Object

Generates the next menu state based on provided attributes.



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# File 'lib/input_sequencer.rb', line 43

def self.next_link_state(block_name: nil, display_menu: nil, document_filename: nil, prior_block_was_link: false)
  MarkdownExec::LinkState.new(
    block_name: block_name,
    display_menu: display_menu,
    document_filename: document_filename,
    prior_block_was_link: prior_block_was_link
  )
end

Instance Method Details

#bq_is_empty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/input_sequencer.rb', line 57

def bq_is_empty?
  !@block_queue || @block_queue.empty?
end

#run(&block) ⇒ Object

Orchestrates the flow of menu states and user interactions.



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# File 'lib/input_sequencer.rb', line 62

def run(&block)
  now_menu = InputSequencer.next_link_state(
    display_menu: bq_is_empty?,
    document_filename: @document_filename,
    prior_block_was_link: false # true bypass_exit when last block was a link (from cli)
  )
  exit_when_bq_empty = !bq_is_empty? # true when running blocks from cli; unless "stay" is used
  loop do
    break if run_yield(:parse_document, now_menu.document_filename, &block) == :break

    pp [__LINE__, 'exit_when_bq_empty', exit_when_bq_empty, '@block_queue', @block_queue, 'now_menu', now_menu] if @debug
    # self.imw_ins now_menu, 'now_menu'

    break if exit_when_bq_empty && bq_is_empty? && !now_menu.prior_block_was_link

    if now_menu.display_menu
      exit_when_bq_empty = false
      run_yield :display_menu, &block

      choice = run_yield :user_choice, &block

      if choice.nil?
        raise "Block not recognized."
        break
      end
      break if run_yield(:exit?, choice&.downcase, &block) # Exit loop and method to terminate the app

      next_state = run_yield :execute_block, choice, &block
      # imw_ins next_state, 'next_state'
      pp [__LINE__, 'next_state', next_state] if @debug
      return :break if next_state == :break

      next_menu = next_state

    else
      if now_menu.block_name && !now_menu.block_name.empty?
        block_name = now_menu.block_name
      else
        break if bq_is_empty? # Exit loop if no more blocks to process

        block_name = @block_queue.shift
      end
      # self.imw_ins block_name, 'block_name'
      pp [__LINE__, 'block_name', block_name] if @debug

      next_menu = if block_name == '.'
                    exit_when_bq_empty = false
                    InputSequencer.next_link_state(display_menu: true)
                  else
                    state = run_yield :execute_block, block_name, &block
                    state.display_menu = bq_is_empty?
                    state
                  end
      pp [__LINE__, 'next_menu', next_menu] if @debug
      next_menu
      # imw_ins next_menu, 'next_menu'
    end
    now_menu = InputSequencer.merge_link_state(now_menu, next_menu)
  end
rescue
  pp backtrace
  binding.irb
end

#run_yield(sym, *args, &block) ⇒ Object

Orchestrates the flow of menu states and user interactions.



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# File 'lib/input_sequencer.rb', line 53

def run_yield(sym, *args, &block)
  block.call sym, *args
end