// Package sw will represent the sw
package sw

import (
	"errors"

	"github.com/ESilva15/PTInvCertSWDB/config"
	models "github.com/ESilva15/PTInvCertSWDB/sw/models"
	repo "github.com/ESilva15/PTInvCertSWDB/sw/repo"
)

const (
	FILEDB   = "YAML"
	POSTGRES = "PG"
)

var service *SWService

type SWService struct {
	SWRepo repo.SWRepo
}

func StartSWService() error {
	cfg := config.GetInstance()

	var err error
	var swRepo repo.SWRepo

	switch cfg.DataBackend {
	case FILEDB:
		swRepo, err = repo.NewYAMLRepo(cfg.YamlBackend.Path)
		if err != nil {
			return errors.New("Failed to create yaml repo: " + err.Error())
		}
	default:
		return errors.New("chosen persistence backend not implemented yet")
	}

	service = &SWService{
		SWRepo: swRepo,
	}

	return nil
}

func Get(id int) (models.SW, error) {
	return service.SWRepo.Get(id)
}

func Count() int {
	return service.SWRepo.Count()
}