package lock_free

import "time"

type DelayLkQueue[T any] struct {
	gap time.Duration // 控制监听重试间隔
	LkQueue[T]
}

// NewDelayLkQueue 创建延迟无锁队列
func NewDelayLkQueue[T any](opt ...Option) *DelayLkQueue[T] {
	opts := loadOptions(opt...)
	return &DelayLkQueue[T]{opts.gap, *NewLkQueue[T]()}
}

// DelayEnqueue 延迟入队
func (q *DelayLkQueue[T]) DelayEnqueue(value T, duration time.Duration) {
	time.AfterFunc(duration, func() {
		q.Enqueue(value)
	})
}

// ContinuousDequeue 持续监听出队通知
func (q *DelayLkQueue[T]) ContinuousDequeue(notify ...chan T) {
	for {
		if value, ok := q.Dequeue(); ok {
			for _, n := range notify {
				n <- value
			}
		} else {
			time.Sleep(q.gap) // 队列为空，休眠重试
		}
	}
}