feat: impl directory endpoints

apps/backend/internal/catalog/file.go

@@ -1,8 +1,18 @@
 package catalog
 
-import "time"
+import (
+	"errors"
+	"fmt"
+	"time"
+
+	"github.com/get-drexa/drexa/internal/account"
+	"github.com/get-drexa/drexa/internal/httperr"
+	"github.com/get-drexa/drexa/internal/virtualfs"
+	"github.com/gofiber/fiber/v2"
+)
 
 type FileInfo struct {
+	Kind      string     `json:"kind"`
 	ID        string     `json:"id"`
 	Name      string     `json:"name"`
 	Size      int64      `json:"size"`
@@ -11,3 +21,151 @@ type FileInfo struct {
 	UpdatedAt time.Time  `json:"updatedAt"`
 	DeletedAt *time.Time `json:"deletedAt,omitempty"`
 }
+
+func mustCurrentFileNode(c *fiber.Ctx) *virtualfs.Node {
+	return c.Locals("file").(*virtualfs.Node)
+}
+
+func (h *HTTPHandler) currentFileMiddleware(c *fiber.Ctx) error {
+	account := account.CurrentAccount(c)
+	if account == nil {
+		return c.SendStatus(fiber.StatusUnauthorized)
+	}
+
+	fileID := c.Params("fileID")
+	node, err := h.vfs.FindNodeByPublicID(c.Context(), h.db, account.ID, fileID)
+	if err != nil {
+		if errors.Is(err, virtualfs.ErrNodeNotFound) {
+			return c.SendStatus(fiber.StatusNotFound)
+		}
+		return httperr.Internal(err)
+	}
+
+	c.Locals("file", node)
+
+	return c.Next()
+}
+
+func (h *HTTPHandler) fetchFile(c *fiber.Ctx) error {
+	node := mustCurrentFileNode(c)
+	i := FileInfo{
+		Kind:      DirItemKindFile,
+		ID:        node.PublicID,
+		Name:      node.Name,
+		Size:      node.Size,
+		MimeType:  node.MimeType,
+		CreatedAt: node.CreatedAt,
+		UpdatedAt: node.UpdatedAt,
+		DeletedAt: node.DeletedAt,
+	}
+	return c.JSON(i)
+}
+
+func (h *HTTPHandler) downloadFile(c *fiber.Ctx) error {
+	node := mustCurrentFileNode(c)
+
+	content, err := h.vfs.ReadFile(c.Context(), h.db, node)
+	if err != nil {
+		if errors.Is(err, virtualfs.ErrUnsupportedOperation) {
+			return c.SendStatus(fiber.StatusNotFound)
+		}
+		return httperr.Internal(err)
+	}
+
+	if content.URL != "" {
+		return c.Redirect(content.URL, fiber.StatusTemporaryRedirect)
+	}
+
+	if content.Reader != nil {
+		if node.MimeType != "" {
+			c.Set("Content-Type", node.MimeType)
+		}
+		if content.Size > 0 {
+			return c.SendStream(content.Reader, int(content.Size))
+		}
+		return c.SendStream(content.Reader)
+	}
+
+	return httperr.Internal(errors.New("vfs returned neither a reader nor a URL"))
+}
+
+func (h *HTTPHandler) patchFile(c *fiber.Ctx) error {
+	node := mustCurrentFileNode(c)
+
+	patch := new(patchFileRequest)
+	if err := c.BodyParser(patch); err != nil {
+		return c.Status(fiber.StatusBadRequest).JSON(fiber.Map{"error": "Invalid request"})
+	}
+
+	tx, err := h.db.BeginTx(c.Context(), nil)
+	if err != nil {
+		return httperr.Internal(err)
+	}
+	defer tx.Rollback()
+
+	if patch.Name != "" {
+		err := h.vfs.RenameNode(c.Context(), tx, node, patch.Name)
+		if err != nil {
+			if errors.Is(err, virtualfs.ErrNodeNotFound) {
+				return c.SendStatus(fiber.StatusNotFound)
+			}
+			return httperr.Internal(err)
+		}
+	}
+
+	err = tx.Commit()
+	if err != nil {
+		return httperr.Internal(err)
+	}
+
+	fmt.Printf("node deleted at: %v\n", node.DeletedAt)
+
+	return c.JSON(FileInfo{
+		ID:        node.PublicID,
+		Name:      node.Name,
+		Size:      node.Size,
+		MimeType:  node.MimeType,
+		CreatedAt: node.CreatedAt,
+		UpdatedAt: node.UpdatedAt,
+		DeletedAt: node.DeletedAt,
+	})
+}
+
+func (h *HTTPHandler) deleteFile(c *fiber.Ctx) error {
+	node := mustCurrentFileNode(c)
+
+	tx, err := h.db.BeginTx(c.Context(), nil)
+	if err != nil {
+		return httperr.Internal(err)
+	}
+	defer tx.Rollback()
+
+	shouldTrash := c.Query("trash") == "true"
+	if shouldTrash {
+		err = h.vfs.SoftDeleteNode(c.Context(), tx, node)
+		if err != nil {
+			return httperr.Internal(err)
+		}
+		return c.JSON(FileInfo{
+			ID:        node.PublicID,
+			Name:      node.Name,
+			Size:      node.Size,
+			MimeType:  node.MimeType,
+			CreatedAt: node.CreatedAt,
+			UpdatedAt: node.UpdatedAt,
+			DeletedAt: node.DeletedAt,
+		})
+	} else {
+		err = h.vfs.PermanentlyDeleteNode(c.Context(), tx, node)
+		if err != nil {
+			return httperr.Internal(err)
+		}
+
+		err = tx.Commit()
+		if err != nil {
+			return httperr.Internal(err)
+		}
+
+		return c.SendStatus(fiber.StatusNoContent)
+	}
+}