♻️ Refactor synchronization service

internal/syncer/resource/extension_adapter.go

@@ -0,0 +1,114 @@
+package resource
+
+import (
+	"context"
+	"fmt"
+	"voidraft/internal/models/ent"
+	"voidraft/internal/models/ent/extension"
+	"voidraft/internal/syncer/snapshot"
+)
+
+// ExtensionAdapter 负责扩展资源的快照导入导出。
+type ExtensionAdapter struct {
+	client *ent.Client
+}
+
+// NewExtensionAdapter 创建扩展适配器。
+func NewExtensionAdapter(client *ent.Client) *ExtensionAdapter {
+	return &ExtensionAdapter{client: client}
+}
+
+// Kind 返回适配器负责的资源类型。
+func (a *ExtensionAdapter) Kind() string {
+	return "extensions"
+}
+
+// Export 导出扩展快照记录。
+func (a *ExtensionAdapter) Export(ctx context.Context) ([]snapshot.Record, error) {
+	extensions, err := a.client.Extension.Query().Order(extension.ByUUID()).All(exportContext(ctx))
+	if err != nil {
+		return nil, err
+	}
+
+	records := make([]snapshot.Record, 0, len(extensions))
+	for _, item := range extensions {
+		values := map[string]interface{}{
+			extension.FieldUUID:      item.UUID,
+			extension.FieldCreatedAt: item.CreatedAt,
+			extension.FieldUpdatedAt: item.UpdatedAt,
+			extension.FieldName:      item.Name,
+			extension.FieldEnabled:   item.Enabled,
+			extension.FieldConfig:    cloneMap(item.Config),
+		}
+		if item.DeletedAt != nil {
+			values[extension.FieldDeletedAt] = *item.DeletedAt
+		}
+
+		record, err := snapshot.NewRecord(a.Kind(), item.UUID, values, nil)
+		if err != nil {
+			return nil, fmt.Errorf("build extension record %s: %w", item.UUID, err)
+		}
+		records = append(records, record)
+	}
+
+	return records, nil
+}
+
+// Apply 将快照记录应用到本地扩展表。
+func (a *ExtensionAdapter) Apply(ctx context.Context, records []snapshot.Record) error {
+	applyCtx := importContext(ctx)
+
+	for _, record := range records {
+		found, err := a.client.Extension.Query().Where(extension.UUIDEQ(record.ID)).First(applyCtx)
+		switch {
+		case ent.IsNotFound(err):
+			if err := a.create(applyCtx, record); err != nil {
+				return err
+			}
+		case err != nil:
+			return err
+		default:
+			if shouldApplyRecord(found.UpdatedAt, record) {
+				if err := a.update(applyCtx, found.ID, record); err != nil {
+					return err
+				}
+			}
+		}
+	}
+
+	return nil
+}
+
+// create 创建新的扩展记录。
+func (a *ExtensionAdapter) create(ctx context.Context, record snapshot.Record) error {
+	builder := a.client.Extension.Create().
+		SetUUID(record.ID).
+		SetName(stringValue(record, extension.FieldName)).
+		SetEnabled(boolValue(record, extension.FieldEnabled)).
+		SetConfig(mapValue(record, extension.FieldConfig)).
+		SetCreatedAt(stringValue(record, extension.FieldCreatedAt)).
+		SetUpdatedAt(stringValue(record, extension.FieldUpdatedAt))
+
+	if deletedAt := recordDeletedAtString(record); deletedAt != nil {
+		builder.SetDeletedAt(*deletedAt)
+	}
+
+	return builder.Exec(ctx)
+}
+
+// update 更新已有扩展记录。
+func (a *ExtensionAdapter) update(ctx context.Context, id int, record snapshot.Record) error {
+	builder := a.client.Extension.UpdateOneID(id).
+		SetName(stringValue(record, extension.FieldName)).
+		SetEnabled(boolValue(record, extension.FieldEnabled)).
+		SetConfig(mapValue(record, extension.FieldConfig)).
+		SetUpdatedAt(stringValue(record, extension.FieldUpdatedAt))
+
+	if deletedAt := recordDeletedAtString(record); deletedAt != nil {
+		builder.SetDeletedAt(*deletedAt)
+	} else {
+		builder.ClearDeletedAt()
+	}
+
+	return builder.Exec(ctx)
+}