[WIP] added mongo handlers for more dbhandler interfaces

mail/mail.go

@@ -9,31 +9,25 @@ import (
 	"git.acooldomain.co/server-manager/backend-kubernetes-go/models"
 )
 
-const EMAIL_SERVER_ENV_VAR = "EMAIL_SERVER"
-const FROM_EMAIL_ENV_VAR = "FROM_EMAIL"
-
-var auth *smtp.Auth
-var mailConfig *models.EmailConfig
-
-func InitializeClient(config models.EmailConfig) error {
-	simpleAuth := smtp.PlainAuth("", config.Username, config.Password, config.Server)
-	auth = &simpleAuth
-	mailConfig = &config
-	return nil
+type MailClient struct {
+	auth       *smtp.Auth
+	mailConfig *models.EmailConfig
 }
 
-func SendMail(
+func NewMailClient(config models.EmailConfig) *MailClient {
+	simpleAuth := smtp.PlainAuth("", config.Username, config.Password, config.Server)
+	return &MailClient{
+		auth:       &simpleAuth,
+		mailConfig: &config,
+	}
+}
+
+func (self *MailClient) SendMail(
 	recipient string,
 	subject string,
 	content string,
 ) error {
-	if auth == nil {
-		return fmt.Errorf("mail not initialized")
-	}
-	if mailConfig == nil {
-		return fmt.Errorf("mail not initialized")
-	}
-	from := mail.Address{Name: "", Address: mailConfig.FromEmail}
+	from := mail.Address{Name: "", Address: self.mailConfig.FromEmail}
 	to := mail.Address{Name: "", Address: recipient}
 
 	headers := make(map[string]string)
@@ -47,21 +41,21 @@ func SendMail(
 	}
 	message += "\r\n" + content
 
-	conn, err := tls.Dial("tcp", mailConfig.Server+":465", &tls.Config{ServerName: mailConfig.Server})
+	conn, err := tls.Dial("tcp", self.mailConfig.Server+":465", &tls.Config{ServerName: self.mailConfig.Server})
 	if err != nil {
 		return err
 	}
 
-	client, err := smtp.NewClient(conn, mailConfig.Server)
+	client, err := smtp.NewClient(conn, self.mailConfig.Server)
 	if err != nil {
 		return err
 	}
 
-	if err = client.Auth(*auth); err != nil {
+	if err = client.Auth(*self.auth); err != nil {
 		return err
 	}
 
-	if err = client.Mail(mailConfig.FromEmail); err != nil {
+	if err = client.Mail(self.mailConfig.FromEmail); err != nil {
 		return err
 	}