class PinX

# File lib/pinx.rb, line 22
def initialize(id)
  @id = id
  @on, @blinking = false, false
end

# File lib/pinx.rb, line 64
def blink(seconds=0.5, duration: nil)

  self.stop if blinking?
  
  @blinking = true
  t2 = Time.now + duration if duration

  Thread.new do
    while @blinking do
      
      set_pin HIGH
      sleep seconds / 2.0
      break if !@blinking
      sleep seconds / 2.0 
      break if !@blinking
      
      set_pin LOW
      sleep seconds / 2.0
      break if !@blinking
      sleep seconds / 2.0 
      break if !@blinking
      
      self.off if duration and Time.now >= t2
    end
    
  end
end

# File lib/pinx.rb, line 27
def blinking?()
  @blinking
end

# File lib/pinx.rb, line 42
def off(durationx=nil, duration: nil)
  
  set_pin LOW
  @on, @blinking = false, false      
  duration ||=  durationx
  
  @on_thread.exit if @on_thread
  @off_thread = Thread.new { (sleep duration; on()) } if duration

end

# File lib/pinx.rb, line 95
def off?() !@on end

# File lib/pinx.rb, line 31
def on(durationx=nil, duration: nil)
  
  set_pin HIGH
  @on, @blinking = true, false
  duration ||=  durationx
  
  @off_thread.exit if @off_thread
  @on_thread = Thread.new {(sleep duration; off()) } if duration

end

# File lib/pinx.rb, line 94
def on?()  @on  end

# File lib/pinx.rb, line 97
def to_s()
  @id
end

# File lib/pinx.rb, line 105
def set_pin(val)
  @on  = val
end