First commit

8 files changed, 580 insertions, 0 deletions

diff --git a/locale/language.go b/locale/language.go
new file mode 100644
index 0000000..c3deda3
--- /dev/null
+++ b/locale/language.go
@@ -0,0 +1,47 @@
+// Copyright 2017 Frédéric Guillot. All rights reserved.
+// Use of this source code is governed by the Apache 2.0
+// license that can be found in the LICENSE file.
+
+package locale
+
+import "fmt"
+
+type Language struct {
+	language     string
+	translations Translation
+}
+
+func (l *Language) Get(key string, args ...interface{}) string {
+	var translation string
+
+	str, found := l.translations[key]
+	if !found {
+		translation = key
+	} else {
+		translation = str.(string)
+	}
+
+	return fmt.Sprintf(translation, args...)
+}
+
+func (l *Language) Plural(key string, n int, args ...interface{}) string {
+	translation := key
+	slices, found := l.translations[key]
+	if found {
+
+		pluralForm, found := pluralForms[l.language]
+		if !found {
+			pluralForm = pluralForms["default"]
+		}
+
+		index := pluralForm(n)
+		translations := slices.([]interface{})
+		translation = key
+
+		if len(translations) > index {
+			translation = translations[index].(string)
+		}
+	}
+
+	return fmt.Sprintf(translation, args...)
+}
diff --git a/locale/locale.go b/locale/locale.go
new file mode 100644
index 0000000..4900525
--- /dev/null
+++ b/locale/locale.go
@@ -0,0 +1,30 @@
+// Copyright 2017 Frédéric Guillot. All rights reserved.
+// Use of this source code is governed by the Apache 2.0
+// license that can be found in the LICENSE file.
+
+package locale
+
+import "log"
+
+type Translation map[string]interface{}
+
+type Locales map[string]Translation
+
+func Load() *Translator {
+	translator := NewTranslator()
+
+	for language, translations := range Translations {
+		log.Println("Loading translation:", language)
+		translator.AddLanguage(language, translations)
+	}
+
+	return translator
+}
+
+// GetAvailableLanguages returns the list of available languages.
+func GetAvailableLanguages() map[string]string {
+	return map[string]string{
+		"en_US": "English",
+		"fr_FR": "Français",
+	}
+}
diff --git a/locale/locale_test.go b/locale/locale_test.go
new file mode 100644
index 0000000..baddd1e
--- /dev/null
+++ b/locale/locale_test.go
@@ -0,0 +1,103 @@
+// Copyright 2017 Frédéric Guillot. All rights reserved.
+// Use of this source code is governed by the Apache 2.0
+// license that can be found in the LICENSE file.
+package locale
+
+import "testing"
+
+func TestTranslateWithMissingLanguage(t *testing.T) {
+	translator := NewTranslator()
+	translation := translator.GetLanguage("en_US").Get("auth.username")
+
+	if translation != "auth.username" {
+		t.Errorf("Wrong translation, got %s", translation)
+	}
+}
+
+func TestTranslateWithExistingKey(t *testing.T) {
+	data := `{"auth.username": "Username"}`
+	translator := NewTranslator()
+	translator.AddLanguage("en_US", data)
+	translation := translator.GetLanguage("en_US").Get("auth.username")
+
+	if translation != "Username" {
+		t.Errorf("Wrong translation, got %s", translation)
+	}
+}
+
+func TestTranslateWithMissingKey(t *testing.T) {
+	data := `{"auth.username": "Username"}`
+	translator := NewTranslator()
+	translator.AddLanguage("en_US", data)
+	translation := translator.GetLanguage("en_US").Get("auth.password")
+
+	if translation != "auth.password" {
+		t.Errorf("Wrong translation, got %s", translation)
+	}
+}
+
+func TestTranslateWithMissingKeyAndPlaceholder(t *testing.T) {
+	translator := NewTranslator()
+	translator.AddLanguage("fr_FR", "")
+	translation := translator.GetLanguage("fr_FR").Get("Status: %s", "ok")
+
+	if translation != "Status: ok" {
+		t.Errorf("Wrong translation, got %s", translation)
+	}
+}
+
+func TestTranslatePluralWithDefaultRule(t *testing.T) {
+	data := `{"number_of_users": ["Il y a %d utilisateur (%s)", "Il y a %d utilisateurs (%s)"]}`
+	translator := NewTranslator()
+	translator.AddLanguage("fr_FR", data)
+	language := translator.GetLanguage("fr_FR")
+
+	translation := language.Plural("number_of_users", 1, 1, "some text")
+	expected := "Il y a 1 utilisateur (some text)"
+	if translation != expected {
+		t.Errorf(`Wrong translation, got "%s" instead of "%s"`, translation, expected)
+	}
+
+	translation = language.Plural("number_of_users", 2, 2, "some text")
+	expected = "Il y a 2 utilisateurs (some text)"
+	if translation != expected {
+		t.Errorf(`Wrong translation, got "%s" instead of "%s"`, translation, expected)
+	}
+}
+
+func TestTranslatePluralWithRussianRule(t *testing.T) {
+	data := `{"key": ["из %d книги за %d день", "из %d книг за %d дня", "из %d книг за %d дней"]}`
+	translator := NewTranslator()
+	translator.AddLanguage("ru_RU", data)
+	language := translator.GetLanguage("ru_RU")
+
+	translation := language.Plural("key", 1, 1, 1)
+	expected := "из 1 книги за 1 день"
+	if translation != expected {
+		t.Errorf(`Wrong translation, got "%s" instead of "%s"`, translation, expected)
+	}
+
+	translation = language.Plural("key", 2, 2, 2)
+	expected = "из 2 книг за 2 дня"
+	if translation != expected {
+		t.Errorf(`Wrong translation, got "%s" instead of "%s"`, translation, expected)
+	}
+
+	translation = language.Plural("key", 5, 5, 5)
+	expected = "из 5 книг за 5 дней"
+	if translation != expected {
+		t.Errorf(`Wrong translation, got "%s" instead of "%s"`, translation, expected)
+	}
+}
+
+func TestTranslatePluralWithMissingTranslation(t *testing.T) {
+	translator := NewTranslator()
+	translator.AddLanguage("fr_FR", "")
+	language := translator.GetLanguage("fr_FR")
+
+	translation := language.Plural("number_of_users", 2)
+	expected := "number_of_users"
+	if translation != expected {
+		t.Errorf(`Wrong translation, got "%s" instead of "%s"`, translation, expected)
+	}
+}
diff --git a/locale/plurals.go b/locale/plurals.go
new file mode 100644
index 0000000..d94f238
--- /dev/null
+++ b/locale/plurals.go
@@ -0,0 +1,101 @@
+// Copyright 2017 Frédéric Guillot. All rights reserved.
+// Use of this source code is governed by the Apache 2.0
+// license that can be found in the LICENSE file.
+
+package locale
+
+// See https://localization-guide.readthedocs.io/en/latest/l10n/pluralforms.html
+// And http://www.unicode.org/cldr/charts/29/supplemental/language_plural_rules.html
+var pluralForms = map[string]func(n int) int{
+	// nplurals=2; plural=(n != 1);
+	"default": func(n int) int {
+		if n != 1 {
+			return 1
+		}
+
+		return 0
+	},
+	// nplurals=6; plural=(n==0 ? 0 : n==1 ? 1 : n==2 ? 2 : n%100>=3 && n%100<=10 ? 3 : n%100>=11 ? 4 : 5);
+	"ar_AR": func(n int) int {
+		if n == 0 {
+			return 0
+		}
+
+		if n == 1 {
+			return 1
+		}
+
+		if n == 2 {
+			return 2
+		}
+
+		if n%100 >= 3 && n%100 <= 10 {
+			return 3
+		}
+
+		if n%100 >= 11 {
+			return 4
+		}
+
+		return 5
+	},
+	// nplurals=3; plural=(n==1) ? 0 : (n>=2 && n<=4) ? 1 : 2;
+	"cs_CZ": func(n int) int {
+		if n == 1 {
+			return 0
+		}
+
+		if n >= 2 && n <= 4 {
+			return 1
+		}
+
+		return 2
+	},
+	// nplurals=3; plural=(n==1 ? 0 : n%10>=2 && n%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2);
+	"pl_PL": func(n int) int {
+		if n == 1 {
+			return 0
+		}
+
+		if n%10 >= 2 && n%10 <= 4 && (n%100 < 10 || n%100 >= 20) {
+			return 1
+		}
+
+		return 2
+	},
+	// nplurals=2; plural=(n > 1);
+	"pt_BR": func(n int) int {
+		if n > 1 {
+			return 1
+		}
+		return 0
+	},
+	// nplurals=3; plural=(n%10==1 && n%100!=11 ? 0 : n%10>=2 && n%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2);
+	"ru_RU": func(n int) int {
+		if n%10 == 1 && n%100 != 11 {
+			return 0
+		}
+
+		if n%10 >= 2 && n%10 <= 4 && (n%100 < 10 || n%100 >= 20) {
+			return 1
+		}
+
+		return 2
+	},
+	// nplurals=3; plural=(n%10==1 && n%100!=11 ? 0 : n%10>=2 && n%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2);
+	"sr_RS": func(n int) int {
+		if n%10 == 1 && n%100 != 11 {
+			return 0
+		}
+
+		if n%10 >= 2 && n%10 <= 4 && (n%100 < 10 || n%100 >= 20) {
+			return 1
+		}
+
+		return 2
+	},
+	// nplurals=1; plural=0;
+	"zh_CN": func(n int) int {
+		return 0
+	},
+}
diff --git a/locale/translations.go b/locale/translations.go
new file mode 100644
index 0000000..0aa1aa7
--- /dev/null
+++ b/locale/translations.go
@@ -0,0 +1,136 @@
+// Code generated by go generate; DO NOT EDIT.
+// 2017-11-19 22:01:21.925268372 -0800 PST m=+0.006101515
+
+package locale
+
+var Translations = map[string]string{
+	"en_US": `{
+    "plural.feed.error_count": [
+        "%d error",
+        "%d errors"
+    ],
+    "plural.categories.feed_count": [
+        "There is %d feed.",
+        "There are %d feeds."
+    ]
+}`,
+	"fr_FR": `{
+    "plural.feed.error_count": [
+        "%d erreur",
+        "%d erreurs"
+    ],
+    "plural.categories.feed_count": [
+        "Il y %d abonnement.",
+        "Il y %d abonnements."
+    ],
+    "Username": "Nom d'utilisateur",
+    "Password": "Mot de passe",
+    "Unread": "Non lus",
+    "History": "Historique",
+    "Feeds": "Abonnements",
+    "Categories": "Catégories",
+    "Settings": "Réglages",
+    "Logout": "Se déconnecter",
+    "Next": "Suivant",
+    "Previous": "Précédent",
+    "New Subscription": "Nouvel Abonnment",
+    "Import": "Importation",
+    "Export": "Exportation",
+    "There is no category. You must have at least one category.": "Il n'y a aucune catégorie. Vous devez avoir au moins une catégorie.",
+    "URL": "URL",
+    "Category": "Catégorie",
+    "Find a subscription": "Trouver un abonnement",
+    "Loading...": "Chargement...",
+    "Create a category": "Créer une catégorie",
+    "There is no category.": "Il n'y a aucune catégorie.",
+    "Edit": "Modifier",
+    "Remove": "Supprimer",
+    "No feed.": "Aucun abonnement.",
+    "There is no article in this category.": "Il n'y a aucun article dans cette catégorie.",
+    "Original": "Original",
+    "Mark this page as read": "Marquer cette page comme lu",
+    "not yet": "pas encore",
+    "just now": "à l'instant",
+    "1 minute ago": "il y a une minute",
+    "%d minutes ago": "il y a %d minutes",
+    "1 hour ago": "il y a une heure",
+    "%d hours ago": "il y a %d heures",
+    "yesterday": "hier",
+    "%d days ago": "il y a %d jours",
+    "%d weeks ago": "il y a %d semaines",
+    "%d months ago": "il y a %d mois",
+    "%d years ago": "il y a %d années",
+    "Date": "Date",
+    "IP Address": "Adresse IP",
+    "User Agent": "Navigateur Web",
+    "Actions": "Actions",
+    "Current session": "Session actuelle",
+    "Sessions": "Sessions",
+    "Users": "Utilisateurs",
+    "Add user": "Ajouter un utilisateur",
+    "Choose a Subscription": "Choisissez un abonnement",
+    "Subscribe": "S'abonner",
+    "New Category": "Nouvelle Catégorie",
+    "Title": "Titre",
+    "Save": "Sauvegarder",
+    "or": "ou",
+    "cancel": "annuler",
+    "New User": "Nouvel Utilisateur",
+    "Confirmation": "Confirmation",
+    "Administrator": "Administrateur",
+    "Edit Category: %s": "Modification de la catégorie : %s",
+    "Update": "Mettre à jour",
+    "Edit Feed: %s": "Modification de l'abonnement : %s",
+    "There is no category!": "Il n'y a aucune catégorie !",
+    "Edit user: %s": "Modification de l'utilisateur : %s",
+    "There is no article for this feed.": "Il n'y a aucun article pour cet abonnement.",
+    "Add subscription": "Ajouter un abonnement",
+    "You don't have any subscription.": "Vous n'avez aucun abonnement",
+    "Last check:": "Dernière vérification :",
+    "Refresh": "Actualiser",
+    "There is no history at the moment.": "Il n'y a aucun historique pour le moment.",
+    "OPML file": "Fichier OPML",
+    "Sign In": "Connexion",
+    "Sign in": "Connexion",
+    "Theme": "Thème",
+    "Timezone": "Fuseau horaire",
+    "Language": "Langue",
+    "There is no unread article.": "Il n'y a rien de nouveau à lire.",
+    "You are the only user.": "Vous êtes le seul utilisateur.",
+    "Last Login": "Dernière connexion",
+    "Yes": "Oui",
+    "No": "Non",
+    "This feed already exists (%s).": "Cet abonnement existe déjà (%s).",
+    "Unable to fetch feed (statusCode=%d).": "Impossible de récupérer cet abonnement (code=%d).",
+    "Unable to open this link: %v": "Impossible d'ouvrir ce lien : %v",
+    "Unable to analyze this page: %v": "Impossible d'analyzer cette page : %v",
+    "Unable to find any subscription.": "Impossible de trouver un abonnement.",
+    "The URL and the category are mandatory.": "L'URL et la catégorie sont obligatoire.",
+    "All fields are mandatory.": "Tous les champs sont obligatoire.",
+    "Passwords are not the same.": "Les mots de passe ne sont pas les mêmes.",
+    "You must use at least 6 characters.": "Vous devez utiliser au moins 6 caractères.",
+    "The username is mandatory.": "Le nom d'utilisateur est obligatoire.",
+    "The username, theme, language and timezone fields are mandatory.": "Le nom d'utilisateur, le thème, la langue et le fuseau horaire sont obligatoire.",
+    "The title is mandatory.": "Le titre est obligatoire.",
+    "About": "A propos",
+    "version": "Version",
+    "Version:": "Version :",
+    "Build Date:": "Date de la compilation :",
+    "Author:": "Auteur :",
+    "Authors": "Auteurs",
+    "License:": "Licence :",
+    "Attachments": "Pièces jointes",
+    "Download": "Télécharger",
+    "Invalid username or password.": "Mauvais identifiant ou mot de passe.",
+    "Never": "Jamais",
+    "Unable to execute request: %v": "Impossible d'exécuter cette requête: %v",
+    "Last Parsing Error": "Dernière erreur d'analyse",
+    "There is a problem with this feed": "Il y a un problème avec cet abonnement"
+}
+`,
+}
+
+var TranslationsChecksums = map[string]string{
+	"en_US": "6fe95384260941e8a5a3c695a655a932e0a8a6a572c1e45cb2b1ae8baa01b897",
+	"fr_FR": "1f75e5a4b581755f7f84687126bc5b96aaf0109a2f83a72a8770c2ad3ddb7ba3",
+}
diff --git a/locale/translations/en_US.json b/locale/translations/en_US.json
new file mode 100644
index 0000000..0ec7b26
--- /dev/null
+++ b/locale/translations/en_US.json
@@ -0,0 +1,10 @@
+{
+    "plural.feed.error_count": [
+        "%d error",
+        "%d errors"
+    ],
+    "plural.categories.feed_count": [
+        "There is %d feed.",
+        "There are %d feeds."
+    ]
+}
\ No newline at end of file
diff --git a/locale/translations/fr_FR.json b/locale/translations/fr_FR.json
new file mode 100644
index 0000000..7699bb7
--- /dev/null
+++ b/locale/translations/fr_FR.json
@@ -0,0 +1,113 @@
+{
+    "plural.feed.error_count": [
+        "%d erreur",
+        "%d erreurs"
+    ],
+    "plural.categories.feed_count": [
+        "Il y %d abonnement.",
+        "Il y %d abonnements."
+    ],
+    "Username": "Nom d'utilisateur",
+    "Password": "Mot de passe",
+    "Unread": "Non lus",
+    "History": "Historique",
+    "Feeds": "Abonnements",
+    "Categories": "Catégories",
+    "Settings": "Réglages",
+    "Logout": "Se déconnecter",
+    "Next": "Suivant",
+    "Previous": "Précédent",
+    "New Subscription": "Nouvel Abonnment",
+    "Import": "Importation",
+    "Export": "Exportation",
+    "There is no category. You must have at least one category.": "Il n'y a aucune catégorie. Vous devez avoir au moins une catégorie.",
+    "URL": "URL",
+    "Category": "Catégorie",
+    "Find a subscription": "Trouver un abonnement",
+    "Loading...": "Chargement...",
+    "Create a category": "Créer une catégorie",
+    "There is no category.": "Il n'y a aucune catégorie.",
+    "Edit": "Modifier",
+    "Remove": "Supprimer",
+    "No feed.": "Aucun abonnement.",
+    "There is no article in this category.": "Il n'y a aucun article dans cette catégorie.",
+    "Original": "Original",
+    "Mark this page as read": "Marquer cette page comme lu",
+    "not yet": "pas encore",
+    "just now": "à l'instant",
+    "1 minute ago": "il y a une minute",
+    "%d minutes ago": "il y a %d minutes",
+    "1 hour ago": "il y a une heure",
+    "%d hours ago": "il y a %d heures",
+    "yesterday": "hier",
+    "%d days ago": "il y a %d jours",
+    "%d weeks ago": "il y a %d semaines",
+    "%d months ago": "il y a %d mois",
+    "%d years ago": "il y a %d années",
+    "Date": "Date",
+    "IP Address": "Adresse IP",
+    "User Agent": "Navigateur Web",
+    "Actions": "Actions",
+    "Current session": "Session actuelle",
+    "Sessions": "Sessions",
+    "Users": "Utilisateurs",
+    "Add user": "Ajouter un utilisateur",
+    "Choose a Subscription": "Choisissez un abonnement",
+    "Subscribe": "S'abonner",
+    "New Category": "Nouvelle Catégorie",
+    "Title": "Titre",
+    "Save": "Sauvegarder",
+    "or": "ou",
+    "cancel": "annuler",
+    "New User": "Nouvel Utilisateur",
+    "Confirmation": "Confirmation",
+    "Administrator": "Administrateur",
+    "Edit Category: %s": "Modification de la catégorie : %s",
+    "Update": "Mettre à jour",
+    "Edit Feed: %s": "Modification de l'abonnement : %s",
+    "There is no category!": "Il n'y a aucune catégorie !",
+    "Edit user: %s": "Modification de l'utilisateur : %s",
+    "There is no article for this feed.": "Il n'y a aucun article pour cet abonnement.",
+    "Add subscription": "Ajouter un abonnement",
+    "You don't have any subscription.": "Vous n'avez aucun abonnement",
+    "Last check:": "Dernière vérification :",
+    "Refresh": "Actualiser",
+    "There is no history at the moment.": "Il n'y a aucun historique pour le moment.",
+    "OPML file": "Fichier OPML",
+    "Sign In": "Connexion",
+    "Sign in": "Connexion",
+    "Theme": "Thème",
+    "Timezone": "Fuseau horaire",
+    "Language": "Langue",
+    "There is no unread article.": "Il n'y a rien de nouveau à lire.",
+    "You are the only user.": "Vous êtes le seul utilisateur.",
+    "Last Login": "Dernière connexion",
+    "Yes": "Oui",
+    "No": "Non",
+    "This feed already exists (%s).": "Cet abonnement existe déjà (%s).",
+    "Unable to fetch feed (statusCode=%d).": "Impossible de récupérer cet abonnement (code=%d).",
+    "Unable to open this link: %v": "Impossible d'ouvrir ce lien : %v",
+    "Unable to analyze this page: %v": "Impossible d'analyzer cette page : %v",
+    "Unable to find any subscription.": "Impossible de trouver un abonnement.",
+    "The URL and the category are mandatory.": "L'URL et la catégorie sont obligatoire.",
+    "All fields are mandatory.": "Tous les champs sont obligatoire.",
+    "Passwords are not the same.": "Les mots de passe ne sont pas les mêmes.",
+    "You must use at least 6 characters.": "Vous devez utiliser au moins 6 caractères.",
+    "The username is mandatory.": "Le nom d'utilisateur est obligatoire.",
+    "The username, theme, language and timezone fields are mandatory.": "Le nom d'utilisateur, le thème, la langue et le fuseau horaire sont obligatoire.",
+    "The title is mandatory.": "Le titre est obligatoire.",
+    "About": "A propos",
+    "version": "Version",
+    "Version:": "Version :",
+    "Build Date:": "Date de la compilation :",
+    "Author:": "Auteur :",
+    "Authors": "Auteurs",
+    "License:": "Licence :",
+    "Attachments": "Pièces jointes",
+    "Download": "Télécharger",
+    "Invalid username or password.": "Mauvais identifiant ou mot de passe.",
+    "Never": "Jamais",
+    "Unable to execute request: %v": "Impossible d'exécuter cette requête: %v",
+    "Last Parsing Error": "Dernière erreur d'analyse",
+    "There is a problem with this feed": "Il y a un problème avec cet abonnement"
+}
diff --git a/locale/translator.go b/locale/translator.go
new file mode 100644
index 0000000..5560dd6
--- /dev/null
+++ b/locale/translator.go
@@ -0,0 +1,40 @@
+// Copyright 2017 Frédéric Guillot. All rights reserved.
+// Use of this source code is governed by the Apache 2.0
+// license that can be found in the LICENSE file.
+
+package locale
+
+import (
+	"encoding/json"
+	"fmt"
+	"strings"
+)
+
+type Translator struct {
+	Locales Locales
+}
+
+func (t *Translator) AddLanguage(language, translations string) error {
+	var decodedTranslations Translation
+
+	decoder := json.NewDecoder(strings.NewReader(translations))
+	if err := decoder.Decode(&decodedTranslations); err != nil {
+		return fmt.Errorf("Invalid JSON file: %v", err)
+	}
+
+	t.Locales[language] = decodedTranslations
+	return nil
+}
+
+func (t *Translator) GetLanguage(language string) *Language {
+	translations, found := t.Locales[language]
+	if !found {
+		return &Language{language: language}
+	}
+
+	return &Language{language: language, translations: translations}
+}
+
+func NewTranslator() *Translator {
+	return &Translator{Locales: make(Locales)}
+}