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', 'received', '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 received ].include? state
end

def queued?
  check_state
  state != 'created'
end

def ready?
  state == 'ready'
end

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

def red?
  color == 'red'
end

def running?
  state == 'started'
end

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

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

def yellow?
  color == 'yellow'
end