feat(GODT-2829): Integrate new sync service

Update imap service to use the new sync service.

The new sync state is stored as simple file on disk to avoid contention
with concurrent vault writes.

internal/bridge/bridge.go

@@ -41,6 +41,7 @@ import (
 	"github.com/ProtonMail/proton-bridge/v3/internal/safe"
 	"github.com/ProtonMail/proton-bridge/v3/internal/sentry"
 	"github.com/ProtonMail/proton-bridge/v3/internal/services/imapsmtpserver"
+	"github.com/ProtonMail/proton-bridge/v3/internal/services/syncservice"
 	"github.com/ProtonMail/proton-bridge/v3/internal/telemetry"
 	"github.com/ProtonMail/proton-bridge/v3/internal/user"
 	"github.com/ProtonMail/proton-bridge/v3/internal/vault"
@@ -127,6 +128,7 @@ type Bridge struct {
 	goHeartbeat func()
 
 	serverManager *imapsmtpserver.Service
+	syncService   *syncservice.Service
 }
 
 // New creates a new bridge.
@@ -268,7 +270,8 @@ func newBridge(
 		firstStart:  firstStart,
 		lastVersion: lastVersion,
 
-		tasks: tasks,
+		tasks:       tasks,
+		syncService: syncservice.NewService(reporter, panicHandler),
 	}
 
 	bridge.serverManager = imapsmtpserver.NewService(context.Background(),
@@ -285,6 +288,8 @@ func newBridge(
 		return nil, err
 	}
 
+	bridge.syncService.Run(bridge.tasks)
+
 	return bridge, nil
 }
 

internal/bridge/types.go

@@ -32,6 +32,7 @@ type Locator interface {
 	GetLicenseFilePath() string
 	GetDependencyLicensesLink() string
 	Clear(...string) error
+	ProvideIMAPSyncConfigPath() (string, error)
 }
 
 type ProxyController interface {

internal/bridge/user.go

@@ -30,6 +30,7 @@ import (
 	"github.com/ProtonMail/proton-bridge/v3/internal/events"
 	"github.com/ProtonMail/proton-bridge/v3/internal/logging"
 	"github.com/ProtonMail/proton-bridge/v3/internal/safe"
+	"github.com/ProtonMail/proton-bridge/v3/internal/services/imapservice"
 	"github.com/ProtonMail/proton-bridge/v3/internal/try"
 	"github.com/ProtonMail/proton-bridge/v3/internal/user"
 	"github.com/ProtonMail/proton-bridge/v3/internal/vault"
@@ -243,6 +244,11 @@ func (bridge *Bridge) LogoutUser(ctx context.Context, userID string) error {
 func (bridge *Bridge) DeleteUser(ctx context.Context, userID string) error {
 	logrus.WithField("userID", userID).Info("Deleting user")
 
+	syncConfigDir, err := bridge.locator.ProvideIMAPSyncConfigPath()
+	if err != nil {
+		return fmt.Errorf("failed to get sync config path")
+	}
+
 	return safe.LockRet(func() error {
 		if !bridge.vault.HasUser(userID) {
 			return ErrNoSuchUser
@@ -252,6 +258,10 @@ func (bridge *Bridge) DeleteUser(ctx context.Context, userID string) error {
 			bridge.logoutUser(ctx, user, true, true, !bridge.GetTelemetryDisabled())
 		}
 
+		if err := imapservice.DeleteSyncState(syncConfigDir, userID); err != nil {
+			return fmt.Errorf("failed to delete use sync config")
+		}
+
 		if err := bridge.vault.DeleteUser(userID); err != nil {
 			logrus.WithError(err).Error("Failed to delete vault user")
 		}
@@ -510,6 +520,11 @@ func (bridge *Bridge) addUserWithVault(
 		return fmt.Errorf("failed to get Statistics directory: %w", err)
 	}
 
+	syncSettingsPath, err := bridge.locator.ProvideIMAPSyncConfigPath()
+	if err != nil {
+		return fmt.Errorf("failed to get IMAP sync config path: %w", err)
+	}
+
 	user, err := user.New(
 		ctx,
 		vault,
@@ -524,6 +539,8 @@ func (bridge *Bridge) addUserWithVault(
 		bridge.serverManager,
 		bridge.serverManager,
 		&bridgeEventSubscription{b: bridge},
+		bridge.syncService,
+		syncSettingsPath,
 	)
 	if err != nil {
 		return fmt.Errorf("failed to create user: %w", err)