move working

lib/sftp_explorer.dart

@@ -1,10 +1,12 @@
 import 'dart:io';
 
+import 'package:dartssh2/dartssh2.dart';
 import 'package:file_picker/file_picker.dart';
 import 'package:file_selector/file_selector.dart';
 import 'package:flutter/material.dart';
 import 'package:fluxcloud/main.dart';
 import 'package:fluxcloud/sftp_provider.dart';
+import 'package:path/path.dart';
 import 'package:provider/provider.dart';
 
 import 'widgets/operation_buttons.dart';
@@ -74,6 +76,7 @@ class SftpExplorer extends StatelessWidget {
         ],
       ),
       floatingActionButton: _buildFABs(context),
+      bottomNavigationBar: _buildCopyMoveButton(context),
       body: PopScope(
         canPop: false,
         onPopInvokedWithResult: (_, _) {
@@ -203,4 +206,68 @@ class SftpExplorer extends StatelessWidget {
     );
   }
 
+   Widget _buildCopyMoveButton(BuildContext context) {
+    return Selector<SftpProvider, (List<String>?, bool)>(
+      selector: (_, sftpProvider) => (sftpProvider.toBeMovedOrCopied, sftpProvider.isCopy),
+      builder: (_, data, __) {
+        final (toBeMovedOrCopied, isCopy) = data;
+        if (toBeMovedOrCopied == null) {
+          return const SizedBox.shrink();
+        }
+        return Padding(
+          padding: const EdgeInsets.all(12),
+          child: Row(
+            spacing: 10,
+            children: [
+              Expanded(child: ElevatedButton(
+                onPressed: () async {
+                  final sftpProvider = context.read<SftpProvider>();
+                  for (final filePath in toBeMovedOrCopied) {
+                    try {
+                      if (isCopy) {
+
+                      }
+                      else {
+                        final fileName = basename(filePath);
+                        await sftpProvider.sftpWorker.rename(filePath, '${sftpProvider.path}$fileName');
+                      }
+                    }
+                    catch (e) {
+                      if (context.mounted) {
+                        ScaffoldMessenger.of(context).showSnackBar(buildErrorSnackBar(context, e.toString()));
+                      }
+                    }
+                  }
+                  sftpProvider.setCopyOrMoveFiles(null, isCopy);
+                  sftpProvider.listDir();
+                },
+                style: ElevatedButton.styleFrom(
+                  backgroundColor: Theme.of(context).colorScheme.secondaryContainer,
+                  foregroundColor: Theme.of(context).colorScheme.onSecondaryContainer
+                ),
+                child: Padding(
+                  padding: const EdgeInsets.all(16),
+                  child: Text(isCopy ? 'Copy Here' : 'Move Here'),
+                ),
+              )),
+              IconButton(
+                onPressed: () {
+                  context.read<SftpProvider>().setCopyOrMoveFiles(null, isCopy);
+                },
+                style: ElevatedButton.styleFrom(
+                  backgroundColor: Theme.of(context).colorScheme.secondaryContainer,
+                  foregroundColor: Theme.of(context).colorScheme.onSecondaryContainer
+                ),
+                icon: Padding(
+                  padding: const EdgeInsets.all(4),
+                  child: Icon(Icons.close),
+                ),
+              )
+            ],
+          ),
+        );
+      }
+    );
+  }
+
 }

lib/sftp_provider.dart

@@ -12,6 +12,9 @@ class SftpProvider extends ChangeNotifier {
   double? _uploadProgress;
   double? _downloadProgress;
   
+  List<String>? _toBeMovedOrCopied;
+  bool _isCopy = false;
+
   SftpProvider(this._sftpWorker) {
     listDir();
   }
@@ -25,6 +28,9 @@ class SftpProvider extends ChangeNotifier {
   double? get uploadProgress => _uploadProgress;
   double? get downloadProgress => _downloadProgress;
 
+  List<String>? get toBeMovedOrCopied => _toBeMovedOrCopied;
+  bool get isCopy => _isCopy;
+  
   Future<void> listDir() async {
     _isLoading = true;
     notifyListeners();
@@ -54,4 +60,10 @@ class SftpProvider extends ChangeNotifier {
     notifyListeners();
   }
 
+  void setCopyOrMoveFiles(List<String>? files, bool isCopy) {
+    _toBeMovedOrCopied = files;
+    _isCopy = isCopy;
+    notifyListeners();
+  }
+
 }

lib/sftp_worker.dart

@@ -50,6 +50,13 @@ class DownloadFile extends SftpCommand {
   DownloadFile(this.file, this.path, this.downloadPath);
 }
 
+class Copy extends SftpCommand {
+  final String filePath;
+  final String copyToPath;
+
+  Copy(this.filePath, this.copyToPath);
+}
+
 
 class SftpWorker {
 
@@ -227,6 +234,15 @@ class SftpWorker {
           }
         case DownloadFile():
           downloadController.add((id, command));
+        case Copy(:final filePath, :final copyToPath):
+          try {
+            // TODO: complete this
+            sendPort.send((id, 0));
+          }
+          on SftpStatusError catch (e) {
+            sendPort.send((id, RemoteError(e.message, '')));
+          }
+
       }
     });
   }
@@ -309,4 +325,12 @@ class SftpWorker {
     return controller.stream;
   }
 
+  Future<void> copy(String filePath, String copyToPath) async {
+    final completer = Completer.sync();
+    final id = _idCounter++;
+    _activeRequests[id] = completer;
+    _commands.send((id, Copy(filePath, copyToPath)));
+    await completer.future;
+  }
+
 }

lib/widgets/operation_buttons.dart

@@ -20,13 +20,15 @@ class OperationButtons extends StatelessWidget {
       children: [
         IconButton(
           onPressed: () {
-            
+            final filePaths = dirEntries.map((dirEntry) => '${sftpProvider.path}${dirEntry.filename}').toList();
+            sftpProvider.setCopyOrMoveFiles(filePaths, false);
           },
           icon: Icon(Icons.drive_file_move)
         ),
         IconButton(
           onPressed: () {
-            
+            final filePaths = dirEntries.map((dirEntry) => '${sftpProvider.path}${dirEntry.filename}').toList();
+            sftpProvider.setCopyOrMoveFiles(filePaths, true);
           },
           icon: Icon(Icons.copy)
         ),