localization.go
1.23 KB
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package webutility
import (
"encoding/json"
"errors"
"io/ioutil"
"sync"
)
type Dictionary struct {
my sync.Mutex
locales map[string]map[string]string
supported []string
defaultLocale string
}
func NewDictionary() *Dictionary {
return &Dictionary{
locales: map[string]map[string]string{},
}
}
func (d *Dictionary) AddLocale(loc, filePath string) error {
file, err := ioutil.ReadFile(filePath)
if err != nil {
return err
}
var data interface{}
err = json.Unmarshal(file, &data)
if err != nil {
return err
}
l := map[string]string{}
for k, v := range data.(map[string]interface{}) {
l[k] = v.(string)
}
mu.Lock()
defer mu.Unlock()
d.locales[loc] = l
d.supported = append(d.supported, loc)
return nil
}
func (d *Dictionary) Translate(loc, key string) string {
return d.locales[loc][key]
}
func (d *Dictionary) HasLocale(loc string) bool {
for _, v := range d.supported {
if v == loc {
return true
}
}
return false
}
func (d *Dictionary) SetDefaultLocale(loc string) error {
if !d.HasLocale(loc) {
return errors.New("dictionary does not contain translations for " + loc)
}
d.defaultLocale = loc
return nil
}
func (d *Dictionary) GetDefaultLocale() string {
return d.defaultLocale
}