Class: RSMP::TLC::StartupSequence

Inherits:
Object
  • Object
show all
Defined in:
lib/rsmp/tlc/startup_sequence.rb

Overview

Manages startup sequence state machine for traffic controllers

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(sequence) ⇒ StartupSequence 



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# File 'lib/rsmp/tlc/startup_sequence.rb', line 7

def initialize(sequence)
  @sequence = sequence || []
  @active = false
  @initiated_at = nil
  @position = nil
end

Instance Attribute Details

#initiated_at ⇒ Object (readonly)

Returns the value of attribute initiated_at.



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# File 'lib/rsmp/tlc/startup_sequence.rb', line 5

def initiated_at
  @initiated_at
end

#position ⇒ Object (readonly)

Returns the value of attribute position.



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# File 'lib/rsmp/tlc/startup_sequence.rb', line 5

def position
  @position
end

#sequence ⇒ Object (readonly)

Returns the value of attribute sequence.



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# File 'lib/rsmp/tlc/startup_sequence.rb', line 5

def sequence
  @sequence
end

Instance Method Details

#active? ⇒ Boolean 



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# File 'lib/rsmp/tlc/startup_sequence.rb', line 26

def active?
  @active
end

#advance ⇒ Object 



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# File 'lib/rsmp/tlc/startup_sequence.rb', line 45

def advance
  return unless @active

  if @initiated_at.nil?
    @initiated_at = Time.now.to_i + 1
    @position = 0
  else
    @position = Time.now.to_i - @initiated_at
  end

  stop if complete?
end

#complete? ⇒ Boolean 



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# File 'lib/rsmp/tlc/startup_sequence.rb', line 30

def complete?
  return false unless @active
  return false if @position.nil?

  @position >= @sequence.size
end

#current_state ⇒ Object 



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# File 'lib/rsmp/tlc/startup_sequence.rb', line 37

def current_state
  return nil unless @active
  return nil if @position.nil?
  return nil if @position >= @sequence.size

  @sequence[@position]
end

#start ⇒ Object 



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# File 'lib/rsmp/tlc/startup_sequence.rb', line 14

def start
  @active = true
  @initiated_at = nil
  @position = nil
end

#stop ⇒ Object 



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# File 'lib/rsmp/tlc/startup_sequence.rb', line 20

def stop
  @active = false
  @initiated_at = nil
  @position = nil
end