From 6aaa8f93d36ea0ac98af1cc0ae21f92f79184404 Mon Sep 17 00:00:00 2001
From: dab246 <tdvu@linagora.com>
Date: Fri, 17 Sep 2021 18:01:50 +0700
Subject: [PATCH] TF-56 Implement local file picker

---
 .../domain/state/local_file_picker_state.dart | 26 ++++++++++++++++
 .../local_file_picker_interactor.dart         | 30 +++++++++++++++++++
 2 files changed, 56 insertions(+)
 create mode 100644 lib/features/upload/domain/state/local_file_picker_state.dart
 create mode 100644 lib/features/upload/domain/usecases/local_file_picker_interactor.dart

diff --git a/lib/features/upload/domain/state/local_file_picker_state.dart b/lib/features/upload/domain/state/local_file_picker_state.dart
new file mode 100644
index 000000000..91cd536d1
--- /dev/null
+++ b/lib/features/upload/domain/state/local_file_picker_state.dart
@@ -0,0 +1,26 @@
+
+import 'package:core/core.dart';
+import 'package:model/model.dart';
+
+class LocalFilePickerSuccess extends UIState {
+  final FileInfo fileInfo;
+
+  LocalFilePickerSuccess(this.fileInfo);
+
+  @override
+  List<Object> get props => [fileInfo];
+}
+
+class LocalFilePickerFailure extends FeatureFailure {
+  final exception;
+
+  LocalFilePickerFailure(this.exception);
+
+  @override
+  List<Object> get props => [exception];
+}
+
+class LocalFilePickerCancel extends FeatureFailure {
+  @override
+  List<Object> get props => [];
+}
\ No newline at end of file
diff --git a/lib/features/upload/domain/usecases/local_file_picker_interactor.dart b/lib/features/upload/domain/usecases/local_file_picker_interactor.dart
new file mode 100644
index 000000000..742d682ab
--- /dev/null
+++ b/lib/features/upload/domain/usecases/local_file_picker_interactor.dart
@@ -0,0 +1,30 @@
+
+import 'package:core/core.dart';
+import 'package:dartz/dartz.dart';
+import 'package:file_picker/file_picker.dart';
+import 'package:model/model.dart';
+import 'package:tmail_ui_user/features/upload/domain/state/local_file_picker_state.dart';
+
+class LocalFilePickerInteractor {
+
+  LocalFilePickerInteractor();
+
+  Stream<Either<Failure, Success>> execute({FileType fileType = FileType.any}) async* {
+    try {
+      final filesResult = await FilePicker.platform.pickFiles(type: fileType);
+      if (filesResult != null && filesResult.files.isNotEmpty) {
+        final platformFile = filesResult.files.first;
+        final fileInfoResult = FileInfo(
+          platformFile.name,
+          platformFile.path ?? '',
+          platformFile.size,
+        );
+        yield Right<Failure, Success>(LocalFilePickerSuccess(fileInfoResult));
+      } else {
+        yield Left<Failure, Success>(LocalFilePickerCancel());
+      }
+    } catch (exception) {
+      yield Left<Failure, Success>(LocalFilePickerFailure(exception));
+    }
+  }
+}
\ No newline at end of file