From e6847ff50e70551448e63cc6018033a2b72b1143 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E4=B8=96=E7=95=8C?= <i@sekai.icu>
Date: Sat, 14 Dec 2024 00:18:58 +0800
Subject: [PATCH] Add locale support ford deprecated messages

---
 experimental/deprecated/constants.go | 12 +++++++----
 experimental/libbox/setup.go         |  5 +++++
 experimental/locale/locale.go        | 30 ++++++++++++++++++++++++++++
 experimental/locale/locale_zh_CN.go  | 10 ++++++++++
 4 files changed, 53 insertions(+), 4 deletions(-)
 create mode 100644 experimental/locale/locale.go
 create mode 100644 experimental/locale/locale_zh_CN.go

diff --git a/experimental/deprecated/constants.go b/experimental/deprecated/constants.go
index fd785dbc..f5b67119 100644
--- a/experimental/deprecated/constants.go
+++ b/experimental/deprecated/constants.go
@@ -1,8 +1,11 @@
 package deprecated
 
 import (
+	"fmt"
+
 	"github.com/sagernet/sing-box/common/badversion"
 	C "github.com/sagernet/sing-box/constant"
+	"github.com/sagernet/sing-box/experimental/locale"
 	F "github.com/sagernet/sing/common/format"
 
 	"golang.org/x/mod/semver"
@@ -33,10 +36,11 @@ func (n Note) Impending() bool {
 }
 
 func (n Note) Message() string {
-	return F.ToString(
-		n.Description, " is deprecated in sing-box ", n.DeprecatedVersion,
-		" and will be removed in sing-box ", n.ScheduledVersion, ", please checkout documentation for migration.",
-	)
+	if n.MigrationLink != "" {
+		return fmt.Sprintf(locale.Current().DeprecatedMessage, n.Description, n.DeprecatedVersion, n.ScheduledVersion)
+	} else {
+		return fmt.Sprintf(locale.Current().DeprecatedMessageNoLink, n.Description, n.DeprecatedVersion, n.ScheduledVersion)
+	}
 }
 
 func (n Note) MessageWithLink() string {
diff --git a/experimental/libbox/setup.go b/experimental/libbox/setup.go
index eb5d7c4e..ea941ecf 100644
--- a/experimental/libbox/setup.go
+++ b/experimental/libbox/setup.go
@@ -9,6 +9,7 @@ import (
 
 	"github.com/sagernet/sing-box/common/humanize"
 	C "github.com/sagernet/sing-box/constant"
+	"github.com/sagernet/sing-box/experimental/locale"
 	_ "github.com/sagernet/sing-box/include"
 	"github.com/sagernet/sing-box/log"
 )
@@ -54,6 +55,10 @@ func SetupWithUsername(basePath string, workingPath string, tempPath string, use
 	return nil
 }
 
+func SetLocale(localeId string) {
+	locale.Set(localeId)
+}
+
 func Version() string {
 	return C.Version
 }
diff --git a/experimental/locale/locale.go b/experimental/locale/locale.go
new file mode 100644
index 00000000..b1736780
--- /dev/null
+++ b/experimental/locale/locale.go
@@ -0,0 +1,30 @@
+package locale
+
+var (
+	localeRegistry = make(map[string]*Locale)
+	current        = defaultLocal
+)
+
+type Locale struct {
+	// deprecated messages for graphical clients
+	DeprecatedMessage       string
+	DeprecatedMessageNoLink string
+}
+
+var defaultLocal = &Locale{
+	DeprecatedMessage:       "%s is deprecated in sing-box %s and will be removed in sing-box %s please checkout documentation for migration.",
+	DeprecatedMessageNoLink: "%s is deprecated in sing-box %s and will be removed in sing-box %s.",
+}
+
+func Current() *Locale {
+	return current
+}
+
+func Set(localeId string) bool {
+	locale, loaded := localeRegistry[localeId]
+	if !loaded {
+		return false
+	}
+	current = locale
+	return true
+}
diff --git a/experimental/locale/locale_zh_CN.go b/experimental/locale/locale_zh_CN.go
new file mode 100644
index 00000000..5db2f274
--- /dev/null
+++ b/experimental/locale/locale_zh_CN.go
@@ -0,0 +1,10 @@
+package locale
+
+var warningMessageForEndUsers = "\n\n如果您不明白此消息意味着什么：您的配置文件已过时，且将很快不可用。请联系您的配置提供者以更新配置。"
+
+func init() {
+	localeRegistry["zh_CN"] = &Locale{
+		DeprecatedMessage:       "%s 已在 sing-box %s 中被弃用，且将在 sing-box %s 中被移除，请参阅迁移指南。" + warningMessageForEndUsers,
+		DeprecatedMessageNoLink: "%s 已在 sing-box %s 中被弃用，且将在 sing-box %s 中被移除。" + warningMessageForEndUsers,
+	}
+}