package service

import (
	"pc-monitor-server/model"
	"pc-monitor-server/repository"
	"time"
)

type MetricsService struct {
	repo *repository.MetricsRepository
}

func NewMetricsService(repo *repository.MetricsRepository) *MetricsService {
	return &MetricsService{repo: repo}
}

func (s *MetricsService) Save(m *model.Metrics) error {
	return s.repo.Save(m)
}

func (s *MetricsService) GetLatest(deviceID string) (*model.Metrics, error) {
	return s.repo.GetLatest(deviceID)
}

func (s *MetricsService) GetHistory(deviceID string, start, end time.Time, limit int) ([]model.Metrics, error) {
	if limit <= 0 {
		limit = 1000
	}
	return s.repo.GetHistory(deviceID, start, end, limit)
}

func (s *MetricsService) Cleanup(retentionDays int) error {
	before := time.Now().AddDate(0, 0, -retentionDays)
	return s.repo.Cleanup(before)
}