From 6c864612db48148308e879aba9c9b089e0802686 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Leon=20B=C3=B6sche?= <leonboesche1999@gmail.com>
Date: Sat, 10 Jan 2026 21:11:53 +0100
Subject: [PATCH] Add comprehensive upload/download debugging to fix file
 storage issues

---
 go_cloud/internal/http/routes.go | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/go_cloud/internal/http/routes.go b/go_cloud/internal/http/routes.go
index 7135e87..69d639f 100644
--- a/go_cloud/internal/http/routes.go
+++ b/go_cloud/internal/http/routes.go
@@ -1247,9 +1247,11 @@ func createUserFileHandler(w http.ResponseWriter, r *http.Request, db *database.
 			storedPath = "/" + storedPath
 		}
 		written := int64(len(data))
+		fmt.Printf("[DEBUG] Upload: user=%s, file=%s, size=%d, path=%s\n", userID.String(), header.Filename, len(data), storedPath)
 		if storageClient != nil {
 			rel := strings.TrimPrefix(storedPath, "/")
 			remotePath := path.Join("/users", userID.String(), rel)
+			fmt.Printf("[DEBUG] Uploading to WebDAV: %s\n", remotePath)
 			if err = storageClient.Upload(r.Context(), remotePath, bytes.NewReader(data), int64(len(data))); err != nil {
 				errors.LogError(r, err, "WebDAV upload failed, falling back to local disk")
 			} else {
@@ -1273,19 +1275,24 @@ func createUserFileHandler(w http.ResponseWriter, r *http.Request, db *database.
 		}
 
 		// Fallback: write to temp directory (WebDAV should be the primary storage)
+		fmt.Printf("[DEBUG] WebDAV is nil or failed, using local storage fallback\n")
 		baseDir := filepath.Join("/tmp", "uploads", "users", userID.String())
 		targetDir := filepath.Join(baseDir, parentPath)
+		fmt.Printf("[DEBUG] Creating directory: %s\n", targetDir)
 		if err = os.MkdirAll(targetDir, 0o755); err != nil {
 			errors.LogError(r, err, "Failed to create target dir in /tmp")
 			errors.WriteError(w, errors.CodeInternal, "Server error", http.StatusInternalServerError)
 			return
 		}
 		outPath := filepath.Join(targetDir, header.Filename)
+		fmt.Printf("[DEBUG] Writing file to: %s\n", outPath)
 		if err = os.WriteFile(outPath, data, 0o644); err != nil {
+			fmt.Printf("[DEBUG] Failed to write file: %v\n", err)
 			errors.LogError(r, err, "Failed to write file to /tmp")
 			errors.WriteError(w, errors.CodeInternal, "Server error", http.StatusInternalServerError)
 			return
 		}
+		fmt.Printf("[DEBUG] File written successfully to local storage: %s\n", outPath)
 
 		f, err = db.CreateFile(r.Context(), nil, &userID, header.Filename, storedPath, "file", written)
 		if err != nil {