迁移

internal/biz/infrastructure.go

@@ -0,0 +1,33 @@
+package biz
+
+import (
+	"context"
+	"io"
+	"time"
+)
+
+// Cache is the shared cache seam. The data implementation uses Redis when it
+// is reachable and falls back to process memory for local development.
+type Cache interface {
+	Get(context.Context, string) (string, bool, error)
+	Set(context.Context, string, string, time.Duration) error
+	Delete(context.Context, string) error
+	Increment(context.Context, string, time.Duration) (int64, error)
+}
+
+type StoredFile struct {
+	Name string
+	Path string
+	URL  string
+	Size int64
+}
+
+// FileStorage owns the persistence boundary for uploaded files.
+type FileStorage interface {
+	Put(context.Context, string, io.Reader) (*StoredFile, error)
+	Open(context.Context, string) (io.ReadCloser, error)
+	Delete(context.Context, string) error
+	Compose(context.Context, []string, string) (*StoredFile, string, error)
+	DeletePrefix(context.Context, string) error
+	List(context.Context, string, string, int) ([]*StoredFile, string, bool, error)
+}