Interface Schedule

Schedules are queues of async actions that need to be executed sequentially

• Actions can be queued immediately or with a delay, callbacks inform when the action has been completed
• Action ids are unique, rescheduling cancels any pending actions with the same id
• A schedule rotates around stopped -> running -> stopping -> stopped -> ...
• You can push actions to a stopped or running schedule
• You can stop a running schedule, or it stops automatically when the queue is empty