added "expirationTime" and the removal of it to messages

Author: pushrbx

message.go

@@ -285,3 +285,13 @@ func (c *Client) GetGroupedMessageCount(ctx context.Context) ([]MessageGroupCoun
 
 	return res.Counts, nil
 }
+
+func (c *Client) RemoveExpirationTime(ctx context.Context, messageID string) error {
+	if err := c.do(ctx, func(r *resty.Request) (*resty.Response, error) {
+		return r.SetBody(MessageExpireActionReq{ExpirationTime: nil, IDs: []string{messageID}}).Put("/mail/v4/messages/expire")
+	}); err != nil {
+		return err
+	}
+
+	return nil
+}

message_types.go

@@ -24,13 +24,14 @@ type MessageMetadata struct {
 	BCCList  []*mail.Address
 	ReplyTos []*mail.Address
 
-	Flags        MessageFlag
-	Time         int64
-	Size         int
-	Unread       Bool
-	IsReplied    Bool
-	IsRepliedAll Bool
-	IsForwarded  Bool
+	Flags          MessageFlag
+	Time           int64
+	ExpirationTime *int64
+	Size           int
+	Unread         Bool
+	IsReplied      Bool
+	IsRepliedAll   Bool
+	IsForwarded    Bool
 
 	NumAttachments int
 }
@@ -70,6 +71,11 @@ type Message struct {
 
 type MessageFlag int64
 
+type MessageExpireActionReq struct {
+	IDs            []string
+	ExpirationTime *int64
+}
+
 const (
 	MessageFlagReceived    MessageFlag = 1 << 0
 	MessageFlagSent        MessageFlag = 1 << 1