fix(GODT-2802): Consolidate Address Mode

internal/usertypes/addressmode.go

@@ -0,0 +1,47 @@
+// Copyright (c) 2023 Proton AG
+//
+// This file is part of Proton Mail Bridge.
+//
+// Proton Mail Bridge is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Proton Mail Bridge is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Proton Mail Bridge.  If not, see <https://www.gnu.org/licenses/>.
+
+package usertypes
+
+import "github.com/ProtonMail/proton-bridge/v3/internal/vault"
+
+type AddressMode int
+
+const (
+	AddressModeCombined AddressMode = iota
+	AddressModeSplit
+)
+
+func VaultToAddressMode(mode vault.AddressMode) AddressMode {
+	var smtpAddressMode AddressMode
+
+	if mode == vault.SplitMode {
+		smtpAddressMode = AddressModeSplit
+	} else {
+		smtpAddressMode = AddressModeCombined
+	}
+
+	return smtpAddressMode
+}
+
+func AddressModeToVault(mode AddressMode) vault.AddressMode {
+	if mode == AddressModeCombined {
+		return vault.CombinedMode
+	}
+
+	return vault.SplitMode
+}