feat: Implement API endpoints for email details and actions, and refactor email preview for client-side rendering with Shadow DOM.

1 files changed, 110 insertions, 0 deletions

diff --git a/services/emails.go b/services/emails.go
index e007f87..4b440f4 100644
--- a/services/emails.go
+++ b/services/emails.go
@@ -4,6 +4,8 @@ import (
 	"lain/jobs"
 	"lain/models"
 	"lain/repository"
+	"lain/utils/crypto"
+	"lain/utils/email"
 	"lain/utils/format"
 	"net/url"
 	"strings"
@@ -56,3 +58,111 @@ func GetEmails(userEmail, folderPath string, prefs *models.Preferences, page int
 
 	return emails, nil
 }
+
+func GetEmailDetails(userEmail string, emailID uint) (fiber.Map, error) {
+	message, err := repository.GetEmailByID(userEmail, emailID)
+	if err != nil {
+		return nil, err
+	}
+
+	// Get attachments
+	attachments, _ := repository.GetAttachmentsByEmailID(emailID)
+
+	var attachmentMaps []fiber.Map
+	for _, att := range attachments {
+		attachmentMaps = append(attachmentMaps, fiber.Map{
+			"ID":          att.ID,
+			"Filename":    att.Filename,
+			"ContentType": att.ContentType,
+			"Size":        format.FormatFileSize(att.Size),
+		})
+	}
+
+	// Sanitize HTML body
+	body := message.BodyHTML
+	if body == "" {
+		body = "<pre>" + format.DecodeHTML(message.BodyText) + "</pre>"
+	} else {
+		body = format.SanitizeHTML(body)
+	}
+
+	return fiber.Map{
+		"ID":          message.ID,
+		"Subject":     format.DecodeHTML(message.Subject),
+		"From":        format.DecodeHTML(message.From),
+		"FromName":    format.DecodeHTML(message.FromName),
+		"To":          format.DecodeHTML(message.To),
+		"CC":          format.DecodeHTML(message.CC),
+		"Date":        message.Date,
+		"Body":        body,
+		"IsRead":      message.IsRead,
+		"IsFlagged":   message.IsFlagged,
+		"Attachments": attachmentMaps,
+	}, nil
+}
+
+func ToggleEmailFlag(userEmail string, emailID uint) (bool, error) {
+	message, err := repository.GetEmailByID(userEmail, emailID)
+	if err != nil {
+		return false, err
+	}
+
+	prefs, err := repository.GetPreferencesByEmail(userEmail)
+	if err != nil {
+		return false, err
+	}
+
+	password, err := crypto.Decrypt(prefs.Authorization)
+	if err != nil {
+		return false, err
+	}
+
+	client, err := email.ConnectIMAP(userEmail, password)
+	if err != nil {
+		return false, err
+	}
+	defer email.DisconnectIMAP(client)
+
+	if err := email.ToggleFlag(client, message.Folder.IMAPName, message.UID, message.IsFlagged); err != nil {
+		return false, err
+	}
+
+	message.IsFlagged = !message.IsFlagged
+	repository.UpdateEmail(message)
+
+	return message.IsFlagged, nil
+}
+
+func MarkEmailAsRead(userEmail string, emailID uint) error {
+	message, err := repository.GetEmailByID(userEmail, emailID)
+	if err != nil {
+		return err
+	}
+
+	if message.IsRead {
+		return nil
+	}
+
+	prefs, err := repository.GetPreferencesByEmail(userEmail)
+	if err != nil {
+		return err
+	}
+
+	password, err := crypto.Decrypt(prefs.Authorization)
+	if err != nil {
+		return err
+	}
+
+	client, err := email.ConnectIMAP(userEmail, password)
+	if err != nil {
+		return err
+	}
+	defer email.DisconnectIMAP(client)
+
+	if err := email.MarkAsRead(client, message.Folder.IMAPName, message.UID); err != nil {
+		return err
+	}
+
+	message.IsRead = true
+	return repository.UpdateEmail(message)
+}