Initial commit

adapters/repository/badger/file.go

@@ -0,0 +1,40 @@
+package badger
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/dgraph-io/badger/v4"
+
+	"github.com/derfenix/webarchive/entity"
+)
+
+func NewFile(db *badger.DB) *File {
+	return &File{db: db, prefix: []byte("file:")}
+}
+
+type File struct {
+	db     *badger.DB
+	prefix []byte
+}
+
+func (f *File) SaveTx(_ context.Context, txn *badger.Txn, file *entity.File) error {
+	if f.db.IsClosed() {
+		return ErrDBClosed
+	}
+
+	marshaled, err := marshal(file)
+	if err != nil {
+		return fmt.Errorf("marshal data: %w", err)
+	}
+
+	if err := txn.Set(f.key(file), marshaled); err != nil {
+		return fmt.Errorf("put data: %w", err)
+	}
+
+	return nil
+}
+
+func (f *File) key(file *entity.File) []byte {
+	return append(f.prefix, []byte(file.ID.String())...)
+}