add badger

internal/storage/badger/client.go

@@ -0,0 +1,47 @@
+package badger
+
+import (
+	"git.loyso.art/frx/eway/internal/entity"
+	badger "github.com/dgraph-io/badger/v4"
+)
+
+var (
+	categorySequenceIDKey = []byte("cat:")
+)
+
+type client struct {
+	db *badger.DB
+
+	// nextCategoryIDSeq *badger.Sequence
+}
+
+func NewClient(db *badger.DB) (*client, error) {
+	// categorySeqGen, err := db.GetSequence(categorySequenceIDKey, 10)
+	// if err != nil {
+	// 	return nil, fmt.Errorf("getting sequence for categories: %w", err)
+	// }
+	//
+	return &client{
+		db: db,
+		// nextCategoryIDSeq: categorySeqGen,
+	}, nil
+}
+
+// Close closes the underlying sequences in the client. Should be called right before
+// underlying *badger.DB closed.
+func (c *client) Close() error {
+	// err := c.nextCategoryIDSeq.Release()
+	// if err != nil {
+	// 	return fmt.Errorf("releasing next_category_sequence: %w", err)
+	// }
+
+	return nil
+}
+
+func (c *client) Category() entity.CategoryRepository {
+	return newCategoryClient(c.db, nil)
+}
+
+func (c *client) GoodsItem() entity.GoodsItemRepository {
+	return newGoodsItemClient(c.db)
+}