Add the beginnings of IMAP session management

internal/imap/session.go

@@ -0,0 +1,49 @@
+package imap
+
+import (
+	"fmt"
+	"log"
+
+	imapbackend "github.com/emersion/go-imap/backend"
+)
+
+var (
+	notImplemented = fmt.Errorf("Not yet implemented")
+)
+
+// type Session implements the User interface for emersion/go-imap
+type Session struct {
+	ID          uint64
+	AccountName string
+	ServiceName string
+}
+
+func (s *Session) Username() string {
+	return s.AccountName
+}
+
+func (s *Session) ListMailboxes(subscribed bool) ([]imapbackend.Mailbox, error) {
+	return nil, notImplemented
+}
+
+func (s *Session) GetMailbox(name string) (imapbackend.Mailbox, error) {
+	return nil, notImplemented
+}
+
+func (s *Session) CreateMailbox(name string) error {
+	return notImplemented
+}
+
+func (s *Session) DeleteMailbox(name string) error {
+	return notImplemented
+}
+
+func (s *Session) RenameMailbox(existingName, newName string) error {
+	return notImplemented
+}
+
+func (s *Session) Logout() error {
+	log.Printf("Ending %s session %d for %s", s.ServiceName, s.ID, s.AccountName)
+
+	return nil
+}