package cabana

import (
	"net/http"
)

// adminLangPrefix is the only namespace the public bundle serves (D-20).
const adminLangPrefix = "backend::lang."

// langBundle serves GET {prefix}/api/v1/lang: every backend::lang key as CLDR
// forms for the request locale, with the fallback locale's keys underneath.
// It is public (the login screen needs it) and never includes another
// namespace.
func (s *service) langBundle(w http.ResponseWriter, r *http.Request) {
	tr := s.translator()
	locale := schemaLocale(r.Context(), tr)
	data := map[string]map[string]string{}
	if tr != nil {
		locale = tr.Resolved(locale, adminLangPrefix)
		data = tr.Bundle(locale, adminLangPrefix)
	}
	w.Header().Set("Cache-Control", "no-cache")
	WriteData(w, http.StatusOK, data, map[string]any{"locale": locale})
}