Implement local DB migrations and archived configuration lifecycle

internal/localdb/localdb.go

@@ -8,6 +8,7 @@ import (
 	"time"
 
 	"github.com/glebarez/sqlite"
+	uuidpkg "github.com/google/uuid"
 	"gorm.io/gorm"
 	"gorm.io/gorm/logger"
 )
@@ -52,6 +53,7 @@ func New(dbPath string) (*LocalDB, error) {
 	if err := db.AutoMigrate(
 		&ConnectionSettings{},
 		&LocalConfiguration{},
+		&LocalConfigurationVersion{},
 		&LocalPricelist{},
 		&LocalPricelistItem{},
 		&LocalComponent{},
@@ -60,6 +62,9 @@ func New(dbPath string) (*LocalDB, error) {
 	); err != nil {
 		return nil, fmt.Errorf("migrating sqlite database: %w", err)
 	}
+	if err := runLocalMigrations(db); err != nil {
+		return nil, fmt.Errorf("running local sqlite migrations: %w", err)
+	}
 
 	slog.Info("local SQLite database initialized", "path", dbPath)
 
@@ -193,7 +198,59 @@ func (l *LocalDB) GetConfigurationByUUID(uuid string) (*LocalConfiguration, erro
 
 // DeleteConfiguration deletes a configuration by UUID
 func (l *LocalDB) DeleteConfiguration(uuid string) error {
-	return l.db.Where("uuid = ?", uuid).Delete(&LocalConfiguration{}).Error
+	return l.DeactivateConfiguration(uuid)
+}
+
+// DeactivateConfiguration marks configuration as inactive and appends one snapshot version.
+func (l *LocalDB) DeactivateConfiguration(uuid string) error {
+	return l.db.Transaction(func(tx *gorm.DB) error {
+		var cfg LocalConfiguration
+		if err := tx.Where("uuid = ?", uuid).First(&cfg).Error; err != nil {
+			return err
+		}
+		if !cfg.IsActive {
+			return nil
+		}
+
+		cfg.IsActive = false
+		cfg.UpdatedAt = time.Now()
+		cfg.SyncStatus = "pending"
+		if err := tx.Save(&cfg).Error; err != nil {
+			return fmt.Errorf("save inactive configuration: %w", err)
+		}
+
+		var maxVersion int
+		if err := tx.Model(&LocalConfigurationVersion{}).
+			Where("configuration_uuid = ?", cfg.UUID).
+			Select("COALESCE(MAX(version_no), 0)").
+			Scan(&maxVersion).Error; err != nil {
+			return fmt.Errorf("read max version for deactivate: %w", err)
+		}
+
+		snapshot, err := BuildConfigurationSnapshot(&cfg)
+		if err != nil {
+			return fmt.Errorf("build deactivate snapshot: %w", err)
+		}
+		note := "deactivate via local delete"
+		version := &LocalConfigurationVersion{
+			ID:                uuidpkg.NewString(),
+			ConfigurationUUID: cfg.UUID,
+			VersionNo:         maxVersion + 1,
+			Data:              snapshot,
+			ChangeNote:        &note,
+			CreatedAt:         time.Now(),
+		}
+		if err := tx.Create(version).Error; err != nil {
+			return fmt.Errorf("insert deactivate version: %w", err)
+		}
+		if err := tx.Model(&LocalConfiguration{}).
+			Where("uuid = ?", cfg.UUID).
+			Update("current_version_id", version.ID).Error; err != nil {
+			return fmt.Errorf("set current version after deactivate: %w", err)
+		}
+
+		return nil
+	})
 }
 
 // CountConfigurations returns the number of local configurations