feat: complete API-driven projects with infrastructure and business acceptance

examples/userService/internal/servicecontext/storage.go

@@ -0,0 +1,49 @@
+package servicecontext
+
+import (
+	"context"
+	"errors"
+
+	"git.yuntuo.hk/k2safe/go-omni/storage/local"
+
+	"example.com/userService/internal/settings"
+	"git.yuntuo.hk/k2safe/go-omni/storage"
+)
+
+// InitStorage is called once, before serving requests. The composition root
+// owns provider clients; business services receive only capability interfaces.
+func (c *Context) InitStorage(ctx context.Context, cfg settings.StorageConfig) error {
+	if c == nil || ctx == nil {
+		return errors.New("storage initialization requires context")
+	}
+	c.closeMu.Lock()
+	defer c.closeMu.Unlock()
+	if c.closed {
+		return errors.New("service dependencies are closed")
+	}
+	if err := ctx.Err(); err != nil {
+		return err
+	}
+	if c.Files != nil {
+		return errors.New("storage already initialized")
+	}
+	if err := cfg.Validate(); err != nil {
+		return err
+	}
+
+	files, err := local.New(cfg.Root, cfg.MaxBytes)
+	if err != nil {
+		return err
+	}
+	signer, err := storage.NewUploadSigner(files, cfg.PublicURL, []byte(cfg.SigningKey), cfg.Policy())
+	if err != nil {
+		return err
+	}
+	uploader, err := storage.NewUploader(files, cfg.Policy())
+	if err != nil {
+		return err
+	}
+	c.Files, c.Uploads, c.Downloads, c.UploadLinks, c.FileHTTP = files, uploader, signer, signer, signer
+
+	return nil
+}