package useCases

import (
	"RenewCMS/internal/domain/purge"
	"time"
)

type PurgeRunner interface {
	Run(fingerprint *string) (purge.RunResult, error)
}

type PurgeSchedulerUseCase struct {
	repository purge.Repository
	runner     PurgeRunner
}

func NewPurgeSchedulerUseCase(repository purge.Repository, runner PurgeRunner) *PurgeSchedulerUseCase {
	return &PurgeSchedulerUseCase{repository, runner}
}

func (u *PurgeSchedulerUseCase) Tick(now time.Time) (purge.RunResult, bool, error) {
	settings, err := u.repository.Get()
	if err != nil {
		return purge.RunResult{}, false, err
	}
	next := settings.NextPurgeAt()
	if next == nil || now.Before(*next) {
		return purge.RunResult{}, false, nil
	}
	result, err := u.runner.Run(nil)
	if err != nil {
		return purge.RunResult{}, false, err
	}
	return result, true, nil
}