startpage/text.go

package main

import (
	"net/http"

	"golang.org/x/text/language"
)

type Text struct {
	Language string
	Strings  map[string]string
}

func (t *Text) Translate(str string) string {
	if tr, ok := t.Strings[str]; ok {
		return tr
	}
	return str
}

var (
	Languages = map[string]Text{
		"en": {
			Strings: map[string]string{
				"Homepage":         "Homepage",
				"Search":           "Search",
				"Search engine":    "Search engine",
				"Settings":         "Settings",
				"Background color": "Background color",
				"Foreground color": "Foreground color",
				"Border radius":    "Border radius",
				"Bookmark size":    "Size",
			},
		},

		"de": {
			Strings: map[string]string{
				"Homepage":         "Homepage",
				"Search":           "Suche",
				"Search engine":    "Suchmaschine",
				"Settings":         "Einstellungen",
				"Background color": "Hintergrundfarbe",
				"Foreground color": "Textfarbe",
				"Border radius":    "Randradius",
				"Bookmark size":    "Größe",
			},
		},

		"ja": {
			Strings: map[string]string{
				"Homepage":         "ホームページ",
				"Search":           "検索",
				"Search engine":    "検索エンジン",
				"Settings":         "設定",
				"Background color": "背景色",
				"Foreground color": "描画色",
				"Border radius":    "境界半径",
				"Bookmark size":    "大小",
			},
		},
	}
)

var languageMatcher = language.NewMatcher([]language.Tag{
	language.English,
	language.German,
	language.Japanese,
})

func GetText(r *http.Request) *Text {
	lang, _ := language.MatchStrings(languageMatcher, r.Header.Get("Accept-Language"))
	base, _ := lang.Base()
	text := Languages[base.String()]
	text.Language = base.String()
	return &text
}