package containers

import "sync"

type LockableQueue[T any] struct {
	sync.Mutex
	items []T
}

func (q *LockableQueue[T]) Push(item T) {
	q.Lock()
	defer q.Unlock()

	q.items = append(q.items, item)
}

func (q *LockableQueue[T]) Pop() (T, bool) {
	q.Lock()
	defer q.Unlock()

	if len(q.items) == 0 {
		var res T
		return res, false
	}

	res := q.items[0]
	q.items = q.items[1:]

	return res, true
}

func NewLockableQueue[T any]() *LockableQueue[T] {
	return &LockableQueue[T]{}
}