[LLC] Refactor attachment_file_uploader usage in client and channel

Signed-off-by: Sahil Kumar <[email protected]>
2021-02-17 20:14:01 +05:30
parent 517c7e489d
commit b29f673e91
5 changed files with 144 additions and 71 deletions
@@ -0,0 +1,92 @@
+import 'package:dio/dio.dart';
+import 'package:stream_chat/src/api/responses.dart';
+import 'package:stream_chat/src/models/attachment_file.dart';
+import 'client.dart';
+import 'extensions/string_extension.dart';
+
+/// Class responsible for uploading images and files to a given channel
+abstract class AttachmentFileUploader {
+  /// Uploads a [image] to the given channel.
+  /// Returns [SendImageResponse] once sent successfully.
+  ///
+  /// Optionally, access upload progress using [onSendProgress]
+  /// and cancel the request using [cancelToken]
+  Future<SendImageResponse> sendImage(
+    AttachmentFile image,
+    String channelId,
+    String channelType, {
+    ProgressCallback onSendProgress,
+    CancelToken cancelToken,
+  });
+
+  /// Uploads a [file] to the given channel.
+  /// Returns [SendFileResponse] once sent successfully.
+  ///
+  /// Optionally, access upload progress using [onSendProgress]
+  /// and cancel the request using [cancelToken]
+  Future<SendFileResponse> sendFile(
+    AttachmentFile file,
+    String channelId,
+    String channelType, {
+    ProgressCallback onSendProgress,
+    CancelToken cancelToken,
+  });
+}
+
+/// Stream's default implementation of [AttachmentFileUploader]
+class StreamAttachmentUploader implements AttachmentFileUploader {
+  final StreamChatClient _client;
+
+  /// Creates a new [StreamAttachmentUploader] instance.
+  const StreamAttachmentUploader(this._client);
+
+  @override
+  Future<SendImageResponse> sendImage(
+    AttachmentFile file,
+    String channelId,
+    String channelType, {
+    ProgressCallback onSendProgress,
+    CancelToken cancelToken,
+  }) async {
+    final filename = file.path?.split('/')?.last;
+    final mimeType = filename.mimeType;
+    final response = await _client.post(
+      '/channels/$channelType/$channelId/image',
+      data: FormData.fromMap({
+        'file': await MultipartFile.fromFile(
+          file.path,
+          filename: filename,
+          contentType: mimeType,
+        ),
+      }),
+      onSendProgress: onSendProgress,
+      cancelToken: cancelToken,
+    );
+    return _client.decode(response.data, SendImageResponse.fromJson);
+  }
+
+  @override
+  Future<SendFileResponse> sendFile(
+    AttachmentFile file,
+    String channelId,
+    String channelType, {
+    ProgressCallback onSendProgress,
+    CancelToken cancelToken,
+  }) async {
+    final filename = file.path?.split('/')?.last;
+    final mimeType = filename.mimeType;
+    final response = await _client.post(
+      '/channels/$channelType/$channelId/file',
+      data: FormData.fromMap({
+        'file': await MultipartFile.fromFile(
+          file.path,
+          filename: filename,
+          contentType: mimeType,
+        ),
+      }),
+      onSendProgress: onSendProgress,
+      cancelToken: cancelToken,
+    );
+    return _client.decode(response.data, SendFileResponse.fromJson);
+  }
+}