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wakapi/services/language_mapping.go
2021-01-21 00:26:52 +01:00

79 lines
2.1 KiB
Go

package services
import (
"errors"
"github.com/muety/wakapi/config"
"github.com/muety/wakapi/models"
"github.com/muety/wakapi/repositories"
"github.com/patrickmn/go-cache"
"time"
)
type LanguageMappingService struct {
config *config.Config
cache *cache.Cache
repository repositories.ILanguageMappingRepository
}
func NewLanguageMappingService(languageMappingsRepo repositories.ILanguageMappingRepository) *LanguageMappingService {
return &LanguageMappingService{
config: config.Get(),
repository: languageMappingsRepo,
cache: cache.New(24*time.Hour, 24*time.Hour),
}
}
func (srv *LanguageMappingService) GetById(id uint) (*models.LanguageMapping, error) {
return srv.repository.GetById(id)
}
func (srv *LanguageMappingService) GetByUser(userId string) ([]*models.LanguageMapping, error) {
if mappings, found := srv.cache.Get(userId); found {
return mappings.([]*models.LanguageMapping), nil
}
mappings, err := srv.repository.GetByUser(userId)
if err != nil {
return nil, err
}
srv.cache.Set(userId, mappings, cache.DefaultExpiration)
return mappings, nil
}
func (srv *LanguageMappingService) ResolveByUser(userId string) (map[string]string, error) {
mappings := srv.getServerMappings()
userMappings, err := srv.GetByUser(userId)
if err != nil {
return nil, err
}
for _, m := range userMappings {
mappings[m.Extension] = m.Language
}
return mappings, nil
}
func (srv *LanguageMappingService) Create(mapping *models.LanguageMapping) (*models.LanguageMapping, error) {
result, err := srv.repository.Insert(mapping)
if err != nil {
return nil, err
}
srv.cache.Delete(result.UserID)
return result, nil
}
func (srv *LanguageMappingService) Delete(mapping *models.LanguageMapping) error {
if mapping.UserID == "" {
return errors.New("no user id specified")
}
err := srv.repository.Delete(mapping.ID)
srv.cache.Delete(mapping.UserID)
return err
}
func (srv *LanguageMappingService) getServerMappings() map[string]string {
// https://dave.cheney.net/2017/04/30/if-a-map-isnt-a-reference-variable-what-is-it
return srv.config.App.GetCustomLanguages()
}