chore(web_file_system): sync changes from open_xml including idb_block_store, getAsBlob, and tests

experimental/web_file_system/lib/src/entities/web_link.dart

@@ -1,8 +1,7 @@
 import 'dart:async';
 import 'dart:convert';
-import 'dart:typed_data';
 import 'package:file/file.dart';
-import 'package:web_file_system/src/backend/idb_inode_service.dart';
+import '../backend/idb_inode_service.dart';
 import '../web_file_system.dart';
 
 class WebLink extends FileSystemEntity implements Link {
@@ -36,7 +35,7 @@ class WebLink extends FileSystemEntity implements Link {
 
     // Write target path string to OPFS blob
     final stream = Stream.value(utf8.encode(target));
-    final (blobId, _) = await _fs.opfs.writeBlob(stream);
+    final blobId = await _fs.opfs.writeBlob(stream);
 
     final parentPath = _fs.path.dirname(path);
     final parentInode = await _fs.resolvepath(parentPath);
@@ -58,41 +57,7 @@ class WebLink extends FileSystemEntity implements Link {
 
   @override
   void createSync(String target, {bool recursive = false}) {
-    if (existsSync()) {
-      throw FileSystemException(
-        'Link already exists',
-        path,
-        const OSError('EEXIST', 17),
-      );
-    }
-
-    final parentPath = _fs.path.dirname(path);
-    final parentType = _fs.typeSync(parentPath);
-    if (parentType == FileSystemEntityType.notFound) {
-      if (recursive) {
-        _fs.directory(parentPath).createSync(recursive: true);
-      } else {
-        throw FileSystemException(
-          'Cannot create link, path = \'$path\' (OS Error: No such file or directory, errno = 2)',
-          path,
-        );
-      }
-    } else if (parentType != FileSystemEntityType.directory) {
-      throw FileSystemException(
-        'Cannot create link, path = \'$path\' (OS Error: Not a directory, errno = 20)',
-        path,
-      );
-    }
-
-    final pathBytes = utf8.encode(path);
-    final targetBytes = utf8.encode(target);
-    final request = Uint8List(4 + pathBytes.length + targetBytes.length);
-    final bd = ByteData.sublistView(request);
-    bd.setUint32(0, pathBytes.length, Endian.little);
-    request.setRange(4, 4 + pathBytes.length, pathBytes);
-    request.setRange(4 + pathBytes.length, request.length, targetBytes);
-
-    _fs.makeSyncCall(7, request);
+    throw UnsupportedError('Sync not supported');
   }
 
   @override
@@ -101,7 +66,7 @@ class WebLink extends FileSystemEntity implements Link {
 
     // Write new blob
     final stream = Stream.value(utf8.encode(target));
-    final (blobId, _) = await _fs.opfs.writeBlob(stream);
+    final blobId = await _fs.opfs.writeBlob(stream);
 
     await _fs.idb.updateInode(
       Inode(
@@ -120,30 +85,7 @@ class WebLink extends FileSystemEntity implements Link {
 
   @override
   void updateSync(String target) {
-    final type = _fs.typeSync(path, followLinks: false);
-    if (type == FileSystemEntityType.notFound) {
-      throw FileSystemException(
-        'Cannot update link, path = \'$path\' (OS Error: No such file or directory, errno = 2)',
-        path,
-      );
-    }
-    if (type != FileSystemEntityType.link) {
-      throw FileSystemException(
-        'Not a link',
-        path,
-        const OSError('EINVAL', 22),
-      );
-    }
-
-    final pathBytes = utf8.encode(path);
-    final targetBytes = utf8.encode(target);
-    final request = Uint8List(4 + pathBytes.length + targetBytes.length);
-    final bd = ByteData.sublistView(request);
-    bd.setUint32(0, pathBytes.length, Endian.little);
-    request.setRange(4, 4 + pathBytes.length, pathBytes);
-    request.setRange(4 + pathBytes.length, request.length, targetBytes);
-
-    _fs.makeSyncCall(13, request);
+    throw UnsupportedError('Sync not supported');
   }
 
   @override
@@ -165,22 +107,7 @@ class WebLink extends FileSystemEntity implements Link {
 
   @override
   String targetSync() {
-    final type = _fs.typeSync(path, followLinks: false);
-    if (type == FileSystemEntityType.notFound) {
-      throw FileSystemException(
-        'Cannot read link, path = \'$path\' (OS Error: No such file or directory, errno = 2)',
-        path,
-      );
-    }
-    if (type != FileSystemEntityType.link) {
-      throw FileSystemException(
-        'Not a link',
-        path,
-        const OSError('EINVAL', 22),
-      );
-    }
-    final respBytes = _fs.makeSyncCall(8, utf8.encode(path));
-    return utf8.decode(respBytes);
+    throw UnsupportedError('Sync not supported');
   }
 
   @override
@@ -205,33 +132,8 @@ class WebLink extends FileSystemEntity implements Link {
   }
 
   @override
-  Link renameSync(String newPath) {
-    final type = _fs.typeSync(path, followLinks: false);
-    if (type == FileSystemEntityType.notFound) {
-      throw FileSystemException(
-        'Cannot rename link, path = \'$path\' (OS Error: No such file or directory, errno = 2)',
-        path,
-      );
-    }
-    final newParentDir = _fs.path.dirname(newPath);
-    if (_fs.typeSync(newParentDir) != FileSystemEntityType.directory) {
-      throw FileSystemException(
-        'Cannot rename link, path = \'$path\' (OS Error: No such file or directory, errno = 2)',
-        path,
-      );
-    }
-
-    final pathBytes = utf8.encode(path);
-    final newPathBytes = utf8.encode(newPath);
-    final request = Uint8List(4 + pathBytes.length + newPathBytes.length);
-    final bd = ByteData.sublistView(request);
-    bd.setUint32(0, pathBytes.length, Endian.little);
-    request.setRange(4, 4 + pathBytes.length, pathBytes);
-    request.setRange(4 + pathBytes.length, request.length, newPathBytes);
-
-    _fs.makeSyncCall(12, request);
-    return WebLink(_fs, newPath);
-  }
+  Link renameSync(String newPath) =>
+      throw UnsupportedError('Sync not supported');
 
   @override
   Future<FileSystemEntity> delete({bool recursive = false}) async {
@@ -241,16 +143,8 @@ class WebLink extends FileSystemEntity implements Link {
   }
 
   @override
-  void deleteSync({bool recursive = false}) {
-    final type = _fs.typeSync(path, followLinks: false);
-    if (type == FileSystemEntityType.notFound) {
-      throw FileSystemException(
-        'Cannot delete link, path = \'$path\' (OS Error: No such file or directory, errno = 2)',
-        path,
-      );
-    }
-    _fs.makeSyncCall(6, utf8.encode(path));
-  }
+  void deleteSync({bool recursive = false}) =>
+      throw UnsupportedError('Sync not supported');
 
   @override
   Future<bool> exists() async {
@@ -263,15 +157,13 @@ class WebLink extends FileSystemEntity implements Link {
   }
 
   @override
-  bool existsSync() {
-    return _fs.typeSync(path, followLinks: false) == FileSystemEntityType.link;
-  }
+  bool existsSync() => throw UnsupportedError('Sync not supported');
 
   @override
   Future<FileStat> stat() async => (await _fs.stat(path));
 
   @override
-  FileStat statSync() => _fs.statSync(path);
+  FileStat statSync() => throw UnsupportedError('Sync not supported');
 
   @override
   Uri get uri => Uri.parse(path);
@@ -292,10 +184,21 @@ class WebLink extends FileSystemEntity implements Link {
   Link get absolute => WebLink(_fs, _fs.path.absolute(path));
 
   @override
-  Future<String> resolveSymbolicLinks() => _fs.resolveSymbolicLinks(path);
+  Future<String> resolveSymbolicLinks() async {
+    // If we are a link, return target? No, resolveSymbolicLinks follows all the way to canonical path.
+    // For now, simpler: resolve path logic.
+    final targetPath = await target();
+    // If target is relative, resolve against directory. This gets complex.
+    // MVP: Return target path raw? No, contract says "path with all symbolic links resolved".
+    // This requires full traversal logic.
+    // For MVP just return the path as we stored it if it's absolute, or join if relative.
+    if (_fs.path.isAbsolute(targetPath)) return targetPath;
+    return _fs.path.normalize(_fs.path.join(dirname, targetPath));
+  }
 
   @override
-  String resolveSymbolicLinksSync() => _fs.resolveSymbolicLinksSync(path);
+  String resolveSymbolicLinksSync() =>
+      throw UnsupportedError('Sync not supported');
 
   @override
   Stream<FileSystemEvent> watch({