51 lines
1.2 KiB
Go
51 lines
1.2 KiB
Go
package pkg
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import (
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"context"
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"net/http"
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"github.com/leonelquinteros/gotext"
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"golang.org/x/text/language"
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)
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const contextLocaleKey = "numerus-locale"
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func Locale(next http.Handler) http.Handler {
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supportedLanguages := []language.Tag{
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language.Catalan,
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language.Spanish,
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}
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var matcher = language.NewMatcher(supportedLanguages)
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locales := map[language.Tag]*gotext.Locale{}
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for _, lang := range supportedLanguages {
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locale := gotext.NewLocale("locales", lang.String())
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locale.AddDomain("numerus")
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locales[lang] = locale
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}
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defaultLocale := locales[language.Catalan]
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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var locale *gotext.Locale
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t, _, err := language.ParseAcceptLanguage(r.Header.Get("Accept-Language"))
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if err == nil {
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tag, _, _ := matcher.Match(t...)
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var ok bool
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locale, ok = locales[tag]
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for !ok && !tag.IsRoot() {
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tag = tag.Parent()
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locale, ok = locales[tag]
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}
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}
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if locale == nil {
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locale = defaultLocale
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}
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ctx := context.WithValue(r.Context(), contextLocaleKey, locale)
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next.ServeHTTP(w, r.WithContext(ctx))
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})
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}
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func getLocale(r *http.Request) *gotext.Locale {
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return r.Context().Value(contextLocaleKey).(*gotext.Locale)
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}
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