module Travis::Client::States

def canceled?
  check_state
  state == 'canceled'
end

def check_state
  raise Error, "unknown state %p for %p" % [state, self] unless STATES.include? state
end

def color
  case state
  when 'created', 'queued', 'started'   then 'yellow'
  when 'passed', 'ready'                then 'green'
  when 'errored', 'canceled', 'failed'  then 'red'
  end
end

def created?
  check_state
  !!state
end

def errored?
  check_state
  state == 'errored'
end

def failed?
  check_state
  state == 'failed'
end

def finished?
  not pending?
end

def green?
  color == 'green'
end

def passed?
  check_state
  state == 'passed'
end

def pending?
  check_state
  %w[created started queued].include? state
end

def queued?
  check_state
  state != 'created'
end

def ready?
  state == 'ready'
end

def red?
  color == 'red'
end

def running?
  state == 'started'
end

def started?
  check_state
  state != 'created' and state != 'queued'
end

def unsuccessful?
  errored? or failed? or canceled?
end

def yellow?
  color == 'yellow'
end