riverpod refactor

lib/providers/sftp_state.dart

@@ -0,0 +1,75 @@
+import 'package:dartssh2/dartssh2.dart';
+import 'package:fluxcloud/sftp_worker.dart';
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+
+part 'sftp_state.g.dart';
+
+class SftpState {
+  final String path;
+  final bool isLoading;
+  final List<SftpName> dirContents;
+
+  final double? uploadProgress;
+  final double? downloadProgress;
+
+  SftpState({
+    required this.path,
+    required this.isLoading,
+    required this.dirContents,
+    required this.uploadProgress,
+    required this.downloadProgress
+  });
+
+  SftpState copyWith({
+    String? path,
+    bool? isLoading,
+    List<SftpName>? dirContents,
+    double? uploadProgress,
+    double? downloadProgress,
+  }) => SftpState(
+    path: path ?? this.path,
+    isLoading: isLoading ?? this.isLoading,
+    dirContents: dirContents ?? this.dirContents,
+    uploadProgress: uploadProgress ?? this.uploadProgress,
+    downloadProgress: downloadProgress ?? this.downloadProgress
+  );
+
+}
+
+@riverpod
+class SftpNotifier extends _$SftpNotifier {
+
+  @override
+  SftpState build(SftpWorker sftpWorker) {
+    Future.microtask(listDir);
+    return SftpState(path: '/', isLoading: false, dirContents: [], uploadProgress: null, downloadProgress: null);
+  } 
+
+
+  Future<void> listDir() async {
+    state = state.copyWith(isLoading: true);
+    final dirContents =  await sftpWorker.listdir(state.path);
+    state = state.copyWith(isLoading: false, dirContents: dirContents);
+  }
+
+  void goToDir(String path) {
+    state = state.copyWith(path: path);
+    listDir();
+  }
+
+  void goToPrevDir() {
+    String path = state.path.substring(0, state.path.length - 1);
+    path = path.substring(0, path.lastIndexOf('/')+1);
+    state = state.copyWith(path: path);
+    listDir();
+  }
+
+  void setUploadProgress(double? progress) {
+    state = state.copyWith(uploadProgress: progress);
+  }
+
+  void setDownloadProgress(double? progress) {
+    state = state.copyWith(downloadProgress: progress);
+  }
+
+}