Add internal delegates to Swift layer

PiperOrigin-RevId: 489473346

connections/clients/swift/NearbyConnections/Sources/ConnectionManager.swift

@@ -14,4 +14,4 @@
 
 import NearbyCoreAdapter
 
-public class Connection {}
+public class ConnectionManager {}

connections/clients/swift/NearbyConnections/Sources/Internal/Connection.swift

@@ -0,0 +1,46 @@
+// Copyright 2022 Google LLC
+//
+// 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
+//
+//     https://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 NearbyCoreAdapter
+
+class InternalConnection: GNCConnectionDelegate {
+  weak var delegate: InternalConnectionDelegate?
+
+  func connected(
+    toEndpoint endpointID: String, withEndpointInfo info: Data, authenticationToken: String
+  ) {
+    delegate?.connected(
+      toEndpoint: endpointID, withEndpointInfo: info, authenticationToken: authenticationToken)
+  }
+
+  func acceptedConnection(toEndpoint endpointID: String) {
+    delegate?.acceptedConnection(toEndpoint: endpointID)
+  }
+
+  func rejectedConnection(toEndpoint endpointID: String, with status: GNCStatus) {
+    delegate?.rejectedConnection(toEndpoint: endpointID, with: status)
+  }
+
+  func disconnected(fromEndpoint endpointID: String) {
+    delegate?.disconnected(fromEndpoint: endpointID)
+  }
+}
+
+protocol InternalConnectionDelegate: AnyObject {
+  func connected(
+    toEndpoint endpointID: String, withEndpointInfo info: Data, authenticationToken: String)
+  func acceptedConnection(toEndpoint endpointID: String)
+  func rejectedConnection(toEndpoint endpointID: String, with status: GNCStatus)
+  func disconnected(fromEndpoint endpointID: String)
+}

connections/clients/swift/NearbyConnections/Sources/Internal/Discovery.swift

@@ -0,0 +1,32 @@
+// Copyright 2022 Google LLC
+//
+// 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
+//
+//     https://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 NearbyCoreAdapter
+
+class InternalDiscovery: GNCDiscoveryDelegate {
+  weak var delegate: InternalDiscoveryDelegate?
+
+  func foundEndpoint(_ endpointID: String, withEndpointInfo info: Data) {
+    delegate?.foundEndpoint(endpointID, withEndpointInfo: info)
+  }
+
+  func lostEndpoint(_ endpointID: String) {
+    delegate?.lostEndpoint(endpointID)
+  }
+}
+
+protocol InternalDiscoveryDelegate: AnyObject {
+  func foundEndpoint(_ endpointID: String, withEndpointInfo info: Data)
+  func lostEndpoint(_ endpointID: String)
+}

connections/clients/swift/NearbyConnections/Sources/Internal/Payload.swift

@@ -0,0 +1,39 @@
+// Copyright 2022 Google LLC
+//
+// 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
+//
+//     https://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 NearbyCoreAdapter
+
+class InternalPayload: GNCPayloadDelegate {
+  weak var delegate: InternalPayloadDelegate?
+
+  func receivedPayload(_ payload: GNCPayload, fromEndpoint endpointID: String) {
+    delegate?.receivedPayload(payload, fromEndpoint: endpointID)
+  }
+
+  func receivedProgressUpdate(
+    forPayload payloadID: Int64, with status: GNCPayloadStatus, fromEndpoint endpointID: String,
+    bytesTransfered: Int64, totalBytes: Int64
+  ) {
+    delegate?.receivedProgressUpdate(
+      forPayload: payloadID, with: status, fromEndpoint: endpointID,
+      bytesTransfered: bytesTransfered, totalBytes: totalBytes)
+  }
+}
+
+protocol InternalPayloadDelegate: AnyObject {
+  func receivedPayload(_ payload: GNCPayload, fromEndpoint endpointID: String)
+  func receivedProgressUpdate(
+    forPayload payloadID: Int64, with status: GNCPayloadStatus, fromEndpoint endpointID: String,
+    bytesTransfered: Int64, totalBytes: Int64)
+}