#25 new: sftp upload

lib/data/provider/sftp.dart

@@ -0,0 +1,36 @@
+import 'package:toolbox/core/provider_base.dart';
+
+import '../model/sftp/req.dart';
+
+class SftpProvider extends ProviderBase {
+  final List<SftpReqStatus> _status = [];
+  List<SftpReqStatus> get status => _status;
+
+  List<SftpReqStatus> gets({int? id, String? fileName}) {
+    var found = <SftpReqStatus>[];
+    if (id != null) {
+      found = _status.where((e) => e.id == id).toList();
+    }
+    if (fileName != null) {
+      found = found
+          .where((e) => e.item.localPath.split('/').last == fileName)
+          .toList();
+    }
+    return found;
+  }
+
+  SftpReqStatus? get({int? id, String? name}) {
+    final found = gets(id: id, fileName: name);
+    if (found.isEmpty) return null;
+    return found.first;
+  }
+
+  void add(SftpReqItem item, SftpReqType type, {String? key}) {
+    _status.add(SftpReqStatus(
+      item: item,
+      notifyListeners: notifyListeners,
+      key: key,
+      type: type,
+    ));
+  }
+}