feat(conf): add conf option for specific email tpl for admins

Signed-off-by: qwqcode <[email protected]>

config/config.go

@@ -195,10 +195,11 @@ const (
 
 // # Redis 配置
 // redis:
-//   network: "tcp"
-//   username: ""
-//   password: ""
-//   db: 0
+//
+//	network: "tcp"
+//	username: ""
+//	password: ""
+//	db: 0
 type RedisConf struct {
 	Network  string `koanf:"network" json:"network"` // tcp or unix
 	Username string `koanf:"username" json:"username"`
@@ -239,6 +240,7 @@ type AdminNotifyConf struct {
 type AdminEmailConf struct {
 	Enabled     bool   `koanf:"enabled" json:"enabled"`           // 管理员总开关
 	MailSubject string `koanf:"mail_subject" json:"mail_subject"` // 管理员邮件标题
+	MailTpl     string `koanf:"mail_tpl" json:"mail_tpl"`         // 管理员专用邮件模板
 }
 
 type NotifyTelegramConf struct {

lib/email/email.go

@@ -29,7 +29,7 @@ func AsyncSend(notify *model.Notify) {
 
 	receiveUser := notify.FetchUser()
 
-	mailBody := RenderEmailBody(notify)
+	mailBody := RenderEmailBody(notify, receiveUser.IsAdmin)
 	mailSubject := ""
 	if !receiveUser.IsAdmin {
 		mailSubject = RenderCommon(config.Instance.Email.MailSubject, notify)

lib/email/render.go

@@ -123,8 +123,15 @@ func HandleEmoticonsImgTagsForNotify(str string) string {
 }
 
 // 渲染邮件 Body 内容
-func RenderEmailBody(notify *model.Notify) string {
+func RenderEmailBody(notify *model.Notify, isSendToAdmin bool) string {
 	tplName := config.Instance.Email.MailTpl
+
+	// 发送给管理员的邮件单独使用管理员邮件模板
+	if isSendToAdmin {
+		tplName = config.Instance.AdminNotify.Email.MailTpl
+	}
+
+	// 配置文件未指定邮件模板路径，使用内置默认模板
 	if tplName == "" {
 		tplName = "default"
 	}
@@ -133,6 +140,8 @@ func RenderEmailBody(notify *model.Notify) string {
 	if _, err := os.Stat(tplName); errors.Is(err, os.ErrNotExist) {
 		tpl = GetInternalEmailTpl(tplName)
 	} else {
+		// TODO 反复文件 IO 操作会导致性能下降，
+		// 之后优化可以改成程序启动时加载模板文件到内存中
 		tpl = GetExternalTpl(tplName)
 	}