From ffc9f1d47e6d81f6f0c99812f8c13853b5f25957 Mon Sep 17 00:00:00 2001
From: Prianka Liz Kariat <prianka.kariat@ymedialabs.com>
Date: Wed, 1 Feb 2023 18:47:23 +0530
Subject: [PATCH] Added MPPEmbeddingResultHelpers

---
 .../ios/components/containers/utils/BUILD     | 12 ++++++
 .../sources/MPPEmbeddingResult+Helpers.h      | 26 ++++++++++++
 .../sources/MPPEmbeddingResult+Helpers.mm     | 42 +++++++++++++++++++
 3 files changed, 80 insertions(+)
 create mode 100644 mediapipe/tasks/ios/components/containers/utils/sources/MPPEmbeddingResult+Helpers.h
 create mode 100644 mediapipe/tasks/ios/components/containers/utils/sources/MPPEmbeddingResult+Helpers.mm

diff --git a/mediapipe/tasks/ios/components/containers/utils/BUILD b/mediapipe/tasks/ios/components/containers/utils/BUILD
index e0989530e..567784acd 100644
--- a/mediapipe/tasks/ios/components/containers/utils/BUILD
+++ b/mediapipe/tasks/ios/components/containers/utils/BUILD
@@ -49,3 +49,15 @@ objc_library(
         "//mediapipe/tasks/ios/components/containers:MPPEmbedding",
     ]
 )
+
+objc_library(
+    name = "MPPEmbeddingResultHelpers",
+    srcs = ["sources/MPPEmbeddingResult+Helpers.mm"],
+    hdrs = ["sources/MPPEmbeddingResult+Helpers.h"],
+    deps = [
+        ":MPPEmbeddingHelpers",
+        "//mediapipe/tasks/cc/components/containers/proto:embeddings_cc_proto",
+        "//mediapipe/tasks/ios/common/utils:NSStringHelpers",
+        "//mediapipe/tasks/ios/components/containers:MPPEmbeddingResult",
+    ],
+)
diff --git a/mediapipe/tasks/ios/components/containers/utils/sources/MPPEmbeddingResult+Helpers.h b/mediapipe/tasks/ios/components/containers/utils/sources/MPPEmbeddingResult+Helpers.h
new file mode 100644
index 000000000..6ec26b764
--- /dev/null
+++ b/mediapipe/tasks/ios/components/containers/utils/sources/MPPEmbeddingResult+Helpers.h
@@ -0,0 +1,26 @@
+// Copyright 2023 The MediaPipe Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "mediapipe/tasks/cc/components/containers/proto/embeddings.pb.h"
+#import "mediapipe/tasks/ios/components/containers/sources/MPPEmbeddingResult.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface MPPEmbeddingResult (Helpers)
+
++ (MPPEmbeddingResult *)embeddingResultWithProto:(const ::mediapipe::tasks::components::containers::proto::EmbeddingResult &)embeddingResultProto;
+
+@end
+
+NS_ASSUME_NONNULL_END
diff --git a/mediapipe/tasks/ios/components/containers/utils/sources/MPPEmbeddingResult+Helpers.mm b/mediapipe/tasks/ios/components/containers/utils/sources/MPPEmbeddingResult+Helpers.mm
new file mode 100644
index 000000000..385b74efb
--- /dev/null
+++ b/mediapipe/tasks/ios/components/containers/utils/sources/MPPEmbeddingResult+Helpers.mm
@@ -0,0 +1,42 @@
+// Copyright 2023 The MediaPipe Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#import "mediapipe/tasks/ios/components/containers/utils/sources/MPPEmbeddingResult+Helpers.h"
+
+#import "mediapipe/tasks/ios/common/utils/sources/NSString+Helpers.h"
+#import "mediapipe/tasks/ios/components/containers/utils/sources/MPPEmbedding+Helpers.h"
+
+namespace {
+using EmbeddingResultProto = ::mediapipe::tasks::components::containers::proto::EmbeddingResult;
+}
+
+@implementation MPPEmbeddingResult (Helpers)
+
++ (MPPEmbeddingResult *)embeddingResultWithProto:(const EmbeddingResultProto &)embeddingResultProto {
+  NSMutableArray *embeddings = [NSMutableArray
+      arrayWithCapacity:(NSUInteger)embeddingResultProto.embeddings_size()];
+  for (const auto &embeddingProto : embeddingResultProto.embeddings()) {
+    [embeddings addObject:[MPPEmbedding embeddingWithProto:embeddingProto]];
+  }
+
+  NSInteger timestampMs = 0;
+  if (embeddingResultProto.has_timestamp_ms()) {
+    timestampMs = (NSInteger)embeddingResultProto.timestamp_ms();
+  }
+
+  return [[MPPEmbeddingResult alloc] initWithEmbeddings:embeddings
+                                                      timestampMs:timestampMs];
+}
+
+@end