first commit

1 files changed, 38 insertions, 0 deletions

diff --git a/internal/object/item_store.go b/internal/object/item_store.go
new file mode 100644
index 0000000..6d62143
--- /dev/null
+++ b/internal/object/item_store.go
@@ -0,0 +1,38 @@
+package object
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+
+	"gopkg.in/yaml.v3"
+)
+
+type ItemStore struct {
+	dataDir string
+	cache   map[string]*ItemDef
+}
+
+func NewItemStore(dataDir string) *ItemStore {
+	return &ItemStore{
+		dataDir: dataDir,
+		cache:   make(map[string]*ItemDef),
+	}
+}
+
+func (s *ItemStore) Load(id string) (*ItemDef, error) {
+	if def, ok := s.cache[id]; ok {
+		return def, nil
+	}
+	path := filepath.Join(s.dataDir, "items", id+".yaml")
+	data, err := os.ReadFile(path)
+	if err != nil {
+		return nil, fmt.Errorf("read item %s: %w", id, err)
+	}
+	var def ItemDef
+	if err := yaml.Unmarshal(data, &def); err != nil {
+		return nil, fmt.Errorf("parse item %s: %w", id, err)
+	}
+	s.cache[id] = &def
+	return &def, nil
+}