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let queue = []
let active = true
let status = 'waiting'
const is_active = () => active
const get_status = () => status
const activate = () => {
active = true
status = 'active'
}
const deactivate = reason => {
active = false
status = reason
}
const add_task = task => queue.push(task)
const remove_task = task => queue = queue.filter(t => t.id !== task.id)
const get_next_task = () => queue.shift()
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