104 lines
2.1 KiB
Go
104 lines
2.1 KiB
Go
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/*
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* SPDX-FileCopyrightText: 2023 jordi fita mas <jfita@peritasoft.com>
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* SPDX-License-Identifier: AGPL-3.0-only
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*/
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package locale
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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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"dev.tandem.ws/tandem/camper/pkg/database"
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)
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type Locale struct {
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*gotext.Locale
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CurrencyPattern string
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Language language.Tag
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}
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type Locales map[language.Tag]*Locale
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func (m Locales) Tags() []language.Tag {
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keys := make([]language.Tag, len(m))
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i := 0
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for k := range m {
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keys[i] = k
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i++
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}
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return keys
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}
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func MustGetAll(db *database.DB) Locales {
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availableLanguages := mustGetAvailableLanguages(db)
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locales := map[language.Tag]*Locale{}
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for _, lang := range availableLanguages {
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locale := newLocale(lang)
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locale.AddDomain("camper")
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locales[lang.tag] = locale
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}
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return locales
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}
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func newLocale(lang availableLanguage) *Locale {
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return &Locale{
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gotext.NewLocale("locale", lang.tag.String()),
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lang.currencyPattern,
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lang.tag,
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}
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}
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func Match(r *http.Request, locales Locales, defaultLocale *Locale, matcher language.Matcher) *Locale {
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var locale *Locale
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// TODO: find user locale
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if locale == nil {
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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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}
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if locale == nil {
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locale = defaultLocale
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}
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return locale
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}
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type availableLanguage struct {
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tag language.Tag
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currencyPattern string
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}
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func mustGetAvailableLanguages(db *database.DB) []availableLanguage {
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rows, err := db.Query(context.Background(), "select lang_tag, currency_pattern from language where selectable")
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if err != nil {
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panic(err)
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}
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defer rows.Close()
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var languages []availableLanguage
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for rows.Next() {
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var langTag string
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var currencyPattern string
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err = rows.Scan(&langTag, ¤cyPattern)
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if err != nil {
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panic(err)
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}
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languages = append(languages, availableLanguage{language.MustParse(langTag), currencyPattern})
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}
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if rows.Err() != nil {
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panic(rows.Err())
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}
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return languages
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}
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