UPDATE: Historian module

pkg/email/email.go

@@ -3,6 +3,7 @@ package email
 import (
 	"fmt"
 	"history-api/assets"
+	"history-api/internal/models"
 	"history-api/pkg/config"
 	"history-api/pkg/constants"
 	"strings"
@@ -10,7 +11,7 @@ import (
 	"github.com/wneessen/go-mail"
 )
 
-func SendMailOTP(toEmail, otpCode string, tokenType constants.TokenType) error {
+func SendMail(toEmail, subject, templatePath string, data map[string]string) error {
 	userSmtp, err := config.GetConfig("SMTP_USER")
 	if err != nil {
 		return err
@@ -21,36 +22,27 @@ func SendMailOTP(toEmail, otpCode string, tokenType constants.TokenType) error {
 		return err
 	}
 
-	var subject string
-	var templatePath string
-
-	switch tokenType {
-	case constants.TokenPasswordReset:
-		subject = "Your Password Reset Code"
-		templatePath = "resources/password_reset.html"
-	case constants.TokenEmailVerify:
-		subject = "Verify your email address"
-		templatePath = "resources/email_verify.html"
-	default:
-		return fmt.Errorf("invalid token type: %v", tokenType)
-	}
 	htmlTemplate, err := assets.GetFileContent(templatePath)
 	if err != nil {
 		return fmt.Errorf("failed to read email template: %s", err)
 	}
 
-	message := mail.NewMsg()
-	if err := message.From(userSmtp); err != nil {
-		return fmt.Errorf("failed to set From email address: %s", err)
-	}
-	if err := message.To(toEmail); err != nil {
-		return fmt.Errorf("failed to set To email address: %s", err)
+	finalHTML := htmlTemplate
+	for k, v := range data {
+		finalHTML = strings.ReplaceAll(finalHTML, "{{"+k+"}}", v)
 	}
 
-	finalHTML := strings.ReplaceAll(htmlTemplate, "{{OTP_CODE}}", otpCode)
+	message := mail.NewMsg()
+	if err := message.From(userSmtp); err != nil {
+		return fmt.Errorf("failed to set From: %s", err)
+	}
+	if err := message.To(toEmail); err != nil {
+		return fmt.Errorf("failed to set To: %s", err)
+	}
 
 	message.Subject(subject)
 	message.SetBodyString(mail.TypeTextHTML, finalHTML)
+
 	client, err := mail.NewClient(
 		"smtp.gmail.com",
 		mail.WithSMTPAuth(mail.SMTPAuthAutoDiscover),
@@ -59,12 +51,56 @@ func SendMailOTP(toEmail, otpCode string, tokenType constants.TokenType) error {
 		mail.WithPassword(passSmtp),
 	)
 	if err != nil {
-		return fmt.Errorf("failed to create mail client: %s", err)
+		return fmt.Errorf("failed to create client: %s", err)
 	}
 
-	err = client.DialAndSend(message)
-	if err != nil {
+	if err := client.DialAndSend(message); err != nil {
 		return fmt.Errorf("failed to send mail: %s", err)
 	}
+
 	return nil
 }
+
+func SendMailOTP(dto *models.TokenEntity) error {
+	var subject string
+	var templatePath string
+
+	switch dto.TokenType {
+	case constants.TokenPasswordReset:
+		subject = "Your Password Reset Code"
+		templatePath = "resources/password_reset.html"
+	case constants.TokenEmailVerify:
+		subject = "Verify your email address"
+		templatePath = "resources/email_verify.html"
+	default:
+		return fmt.Errorf("invalid token type: %v", dto.TokenType)
+	}
+
+	return SendMail(dto.Email, subject, templatePath, map[string]string{
+		"OTP_CODE": dto.Token,
+	})
+}
+
+func SendHistorianReviewMail(dto *models.UserVerificationStorageEntity) error {
+	var subject string
+	var templatePath string
+	feUrl := config.GetConfigWithDefault("FRONTEND_URL", "http://localhost:3000")
+	switch dto.Status {
+	case constants.StatusApproved:
+		subject = "Your Historian Application is Approved"
+		templatePath = "resources/historian_approved.html"
+
+	case constants.StatusRejected:
+		subject = "Your Historian Application is Rejected"
+		templatePath = "resources/historian_rejected.html"
+
+	default:
+		return fmt.Errorf("invalid status: %v", dto.Status)
+	}
+
+	return SendMail(dto.Email, subject, templatePath, map[string]string{
+		"NAME":    dto.Email,
+		"REASON":  dto.ReviewNote,
+		"APP_URL": feUrl,
+	})
+}