app/metrics/trello/idle_hours_average.rb
PROVIDERS.fetch(:trello).register_metric :idle_hours_average do |metric|
metric.description = "Average time each card has been idle measured in hours"
metric.title = "Card average age"
metric.block = proc do |adapter, options|
now_utc = Time.current.utc
list_ids = Array(options[:list_ids])
cards = adapter.cards(list_ids)
sum = cards.map do |card|
(now_utc - card.last_activity_date) / 1.hour
end.sum
value = sum.zero? ? sum : sum / cards.count
Datapoint.new value: value.to_i
end
metric.configuration = proc do |client, params|
list_ids = Array(params["list_ids"])
[
[:list_ids, select_tag("goal[params][list_ids]",
options_for_select(client.list_options,
selected: list_ids),
multiple: true,
class: "form-control")],
]
end
end