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package i18n
import (
"github.com/cloudfoundry/jibber_jabber"
"github.com/nicksnyder/go-i18n/v2/i18n"
"github.com/sirupsen/logrus"
"golang.org/x/text/language"
)
// Teml is short for template used to make the required map[string]interface{} shorter when using gui.Tr.SLocalize and gui.Tr.TemplateLocalize
type Teml map[string]interface{}
// Localizer will translate a message into the user's language
type Localizer struct {
i18nLocalizer *i18n.Localizer
language string
Log *logrus.Entry
}
// NewLocalizer creates a new Localizer
func NewLocalizer(log *logrus.Entry) *Localizer {
userLang := detectLanguage(jibber_jabber.DetectLanguage)
log.Info("language: " + userLang)
return setupLocalizer(log, userLang)
}
// Localize handels the translations
// expects i18n.LocalizeConfig as input: https://godoc.org/github.com/nicksnyder/go-i18n/v2/i18n#Localizer.MustLocalize
// output: translated string
func (l *Localizer) Localize(config *i18n.LocalizeConfig) string {
return l.i18nLocalizer.MustLocalize(config)
}
// SLocalize (short localize) is for 1 line localizations
// ID: The id that is used in the .toml translation files
// Other: the default message it needs to return if there is no translation found or the system is english
func (l *Localizer) SLocalize(ID string) string {
return l.Localize(&i18n.LocalizeConfig{
DefaultMessage: &i18n.Message{
ID: ID,
},
})
}
// TemplateLocalize allows the Other input to be dynamic
func (l *Localizer) TemplateLocalize(ID string, TemplateData map[string]interface{}) string {
return l.Localize(&i18n.LocalizeConfig{
DefaultMessage: &i18n.Message{
ID: ID,
},
TemplateData: TemplateData,
})
}
// GetLanguage returns the currently selected language, e.g 'en'
func (l *Localizer) GetLanguage() string {
return l.language
}
// add translation file(s)
func addBundles(log *logrus.Entry, i18nBundle *i18n.Bundle) {
fs := []func(*i18n.Bundle) error{
addPolish,
addDutch,
addEnglish,
}
for _, f := range fs {
if err := f(i18nBundle); err != nil {
log.Fatal(err)
}
}
}
// detectLanguage extracts user language from environment
func detectLanguage(langDetector func() (string, error)) string {
if userLang, err := langDetector(); err == nil {
return userLang
}
return "C"
}
// setupLocalizer creates a new localizer using given userLang
func setupLocalizer(log *logrus.Entry, userLang string) *Localizer {
// create a i18n bundle that can be used to add translations and other things
i18nBundle := i18n.NewBundle(language.English)
addBundles(log, i18nBundle)
// return the new localizer that can be used to translate text
i18nLocalizer := i18n.NewLocalizer(i18nBundle, userLang)
return &Localizer{
i18nLocalizer: i18nLocalizer,
language: userLang,
Log: log,
}
}
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