containers = $(".evaluation-state")

final_states = ["done", "failed"]

poll_time = 3000 # milliseconds

return if _.isEmpty(containers) || !containers.length

update = (container) ->

updateContainer = (container) ->

current_state = container.data('state')

$.getJSON container.data('uri'), (data) ->

state = data.evaluation_state

if state == current_state && !_.contains(final_states, state)

enqueue(container)

else

current_state = state

# display the new state

container.find("span").text(state)

if state == "pending"

$(".pending_message").show()

else

$(".pending_message").hide()

if _.contains(final_states, state)

# replace spinner with refresh button

container.find(".spinner").

replaceWith($('<a />').

attr('href', document.location.href).

attr('class', 'btn btn-xs btn-primary').

append($('<i />').

attr('class', 'fa fa-refresh')).

text('refresh'))

else

enqueue(container)

if _.isUndefined(container)

containers.each ->

updateContainer($(this))

else

updateContainer(container)

enqueue = (container) ->

setTimeout (-> update(container)), poll_time

enqueue()