package cleaner

import (
	"fmt"
	"sync"
	"time"
)

type Singleton struct {
	work bool
	mx   sync.Mutex
}

var instance *Singleton
var once sync.Once

func GetInstance() *Singleton {
	once.Do(func() {
		instance = &Singleton{}
	})
	return instance
}

func (s *Singleton) Clean(id int) error {
	if s.mx.TryLock() {
		fmt.Printf("GOT A JOB FROM ROUTINE %d !!!!!!!!!!!!!!!!!!!\n", id)
		time.Sleep(time.Second)
		fmt.Printf("FINISH JOB FROM ROUTINE %d !!!!!!!!!!!!!!!!!!!\n", id)
		s.mx.Unlock()
	} else {
		fmt.Printf("NO NEW JOB FROM ROUTINE %d\n", id)
	}
	return nil
}