Fix removing photos from a server album incorrectly deleted it, and implement runtime blocks to prevent this from happening again

app/lib/controller/collection_items_controller.dart

@@ -375,7 +375,9 @@ class CollectionItemsController {
                   return null;
                 }
               } else {
-                return e.copyWith(file: file);
+                return e.copyWith(
+                  file: file.replacePath(e.file.fdPath),
+                );
               }
             } else {
               return e;

app/lib/entity/collection/adapter/nc_album.dart

@@ -56,9 +56,7 @@ class CollectionNcAlbumAdapter
           i,
           // retain the path such that it is correctly recognized as part of an
           // album
-          f?.copyWith(
-            fdPath: i.path,
-          ),
+          f?.replacePath(i.path),
         );
       }).toList();
     });

app/lib/entity/file/data_source2.dart

@@ -171,6 +171,10 @@ class FileNpDbDataSource implements FileDataSource2 {
   @override
   Future<void> remove(Account account, FileDescriptor f) async {
     _log.info("[remove] ${f.fdPath}");
+    if (file_util.isNcAlbumFile(account, f)) {
+      // removing from albums, not deleting the file
+      return;
+    }
     await db.deleteFile(
       account: account.toDb(),
       file: f.toDbKey(),

app/lib/entity/file_descriptor.dart

@@ -135,6 +135,14 @@ extension FileDescriptorExtension on FileDescriptor {
       isFavorite: fdIsFavorite,
     );
   }
+
+  FileDescriptor replacePath(String newPath) {
+    if (this is File) {
+      return (this as File).copyWith(path: newPath);
+    } else {
+      return copyWith(fdPath: newPath);
+    }
+  }
 }
 
 class FileDescriptorServerIdentityComparator {

app/lib/use_case/nc_album/remove_from_nc_album.dart

@@ -5,6 +5,7 @@ import 'package:nc_photos/debug_util.dart';
 import 'package:nc_photos/di_container.dart';
 import 'package:nc_photos/entity/collection_item.dart';
 import 'package:nc_photos/entity/file_descriptor.dart';
+import 'package:nc_photos/entity/file_util.dart' as file_util;
 import 'package:nc_photos/entity/nc_album.dart';
 import 'package:nc_photos/use_case/remove.dart';
 import 'package:np_codegen/np_codegen.dart';
@@ -41,11 +42,22 @@ class RemoveFromNcAlbum {
           }
         })
         .cast<CollectionFileItem>()
+        // since nextcloud album uses the DELETE method, we must make sure we
+        // are "deleting" with an album path, not the actual file path
+        .where((e) {
+          if (file_util.isNcAlbumFile(account, e.file)) {
+            return true;
+          } else {
+            _log.warning("[call] Wrong path for files in Nextcloud album");
+            return false;
+          }
+        })
         .toList();
     var count = fileItems.length;
     await Remove(_c)(
       account,
       fileItems.map((e) => e.file).toList(),
+      shouldCleanUp: false,
       onError: (i, f, e, stackTrace) {
         --count;
         try {