feat: menu contextuel Déplacer/Dupliquer sidebar + réparation drag & drop interne #201 #BUG-117

backend/services/mutations.py

@@ -1534,6 +1534,80 @@ def move_path(vault_name: str, source_path: str, destination_dir: str = "") -> d
         "item_type": item_type,
     }
 
+def duplicate_path(vault_name: str, source_path: str, destination_dir: str = "") -> dict[str, Any]:
+    """Duplicate a file or directory (copy) into *destination_dir* (same vault).
+
+    The copy is named ``<stem> copie<ext>`` (then ``copie 2``, ``copie 3``… on
+    collision). Directories are copied recursively.
+
+    Raises:
+        ServiceError: ``not_found`` (404), ``read_only`` (403),
+            ``permission_denied`` (403), ``invalid_arguments`` (400) when the
+            destination is inside the source directory.
+    """
+    root = get_vault_root(vault_name)
+    _ensure_writable(root)
+
+    source = resolve_safe_path(root, source_path)
+    if not source.exists():
+        raise ServiceError(
+            f"Source not found: {source_path}",
+            code="not_found",
+            status=404,
+            details={"vault": vault_name, "path": source_path},
+        )
+
+    is_directory = source.is_dir()
+    dest_clean = (destination_dir or "").strip("/")
+    if dest_clean:
+        dest_parent = resolve_safe_path(root, dest_clean)
+        if not dest_parent.exists() or not dest_parent.is_dir():
+            raise ServiceError(
+                f"Destination directory not found: {destination_dir}",
+                code="not_found",
+                status=404,
+                details={"vault": vault_name, "path": destination_dir},
+            )
+    else:
+        dest_parent = root
+
+    if is_directory and str(dest_parent.resolve()) in (str(source.resolve()), str(source.resolve()) + os.sep, str(source.resolve()) + "/"):
+        raise ServiceError(
+            "Cannot duplicate a directory inside itself",
+            code="invalid_arguments",
+            status=400,
+            details={"vault": vault_name, "path": source_path},
+        )
+
+    ext = "" if is_directory else source.suffix
+    base = dest_parent / (source.stem + " copie" + ext)
+    target = base
+    n = 2
+    while target.exists():
+        target = base.parent / (source.stem + " copie " + str(n) + ext)
+        n += 1
+
+    try:
+        if is_directory:
+            shutil.copytree(source, target)
+        else:
+            shutil.copy2(source, target)
+    except PermissionError as e:
+        raise ServiceError("Permission denied: cannot duplicate item", code="permission_denied", status=403) from e
+
+    new_rel = _rel(root, target)
+    item_type = "directory" if is_directory else "file"
+    logger.info(f"Item duplicated: {vault_name}/{source_path} -> {new_rel}")
+    return {
+        "success": True,
+        "vault": vault_name,
+        "source_path": _rel(root, source),
+        "new_path": new_rel,
+        "item_type": item_type,
+    }
+
+
+
 
 # ── D3. Find & replace ─────────────────────────────────────────────────────