forked from Gitlink/gitlink-cli
67 lines
1.5 KiB
Go
67 lines
1.5 KiB
Go
package i18n
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import (
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"embed"
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"encoding/json"
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"fmt"
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"io/fs"
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"path/filepath"
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"sort"
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"strings"
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)
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//go:embed locales/*.json
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var embeddedLocales embed.FS
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// Loader loads locale messages from a backing store.
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type Loader interface {
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Load(locale string) (map[string]string, error)
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AvailableLocales() ([]string, error)
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}
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type embedLoader struct {
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fs fs.FS
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}
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// NewEmbedLoader returns the default loader backed by embedded locale files.
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func NewEmbedLoader() Loader {
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return embedLoader{fs: embeddedLocales}
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}
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func (l embedLoader) Load(locale string) (map[string]string, error) {
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locale = NormalizeLocale(locale)
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path := filepath.ToSlash(filepath.Join("locales", locale+".json"))
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data, err := fs.ReadFile(l.fs, path)
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if err != nil {
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return nil, fmt.Errorf("load locale %s: %w", locale, err)
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}
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var messages map[string]string
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if err := json.Unmarshal(data, &messages); err != nil {
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return nil, fmt.Errorf("parse locale %s: %w", locale, err)
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}
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return messages, nil
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}
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func (l embedLoader) AvailableLocales() ([]string, error) {
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entries, err := fs.ReadDir(l.fs, "locales")
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if err != nil {
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return nil, err
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}
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locales := make([]string, 0, len(entries))
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for _, entry := range entries {
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if entry.IsDir() || !strings.HasSuffix(entry.Name(), ".json") {
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continue
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}
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locales = append(locales, strings.TrimSuffix(entry.Name(), ".json"))
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}
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sort.Strings(locales)
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return locales, nil
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}
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// AvailableLocales returns locales available from the embedded loader.
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func AvailableLocales() ([]string, error) {
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return NewEmbedLoader().AvailableLocales()
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}
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