Updates GNCDiscoverer to allow requesting a connection with endpoint info as Data

and fixes bug where the discovered endpoint info was being sent in connection request instead of the discoverer's endpoint info

PiperOrigin-RevId: 422568179

cpp/platform/impl/ios/Source/GNCDiscoverer.h

@@ -40,12 +40,13 @@ typedef GNCConnectionHandler _Nonnull (^GNCDiscovererConnectionInitializationHan
 /**
  * This handler should be called to request a connection with an advertiser.
  *
- * @param name A human readable name of this endpoint, to be displayed on the other endpoint.
+ * @param endpointInfo A data for endpoint info which contains readable name of this endpoint,
+ *                     to be displayed on other endpoints.
  * @param authorizationHandler This handler is called to establish authorization.
  * @param failureHandler This handler is called if there was an error making the connection.
  */
 typedef void (^GNCConnectionRequester)(
-    NSString *name, GNCDiscovererConnectionInitializationHandler connectionAuthorizationHandler,
+    NSData *endpointInfo, GNCDiscovererConnectionInitializationHandler connectionAuthorizationHandler,
     GNCConnectionFailureHandler failureHandler);
 
 /** Information about an endpoint when it's discovered. */

cpp/platform/impl/ios/Source/GNCPayload.h

@@ -57,6 +57,8 @@ NS_ASSUME_NONNULL_BEGIN
 
 + (instancetype)payloadWithFileURL:(NSURL *)fileURL;
 
++ (instancetype)payloadWithFileURL:(NSURL *)fileURL identifier:(int64_t)identifier;
+
 @end
 
 NS_ASSUME_NONNULL_END

cpp/platform/impl/ios/Source/Internal/GNCCoreConnection.mm

@@ -138,7 +138,7 @@ class GNCInputStreamFromNSStream : public InputStream {
                        completion:(GNCPayloadResultHandler)completion {
   NSProgress *progress = [NSProgress progressWithTotalUnitCount:-1];
 
-  PayloadId payloadId = Payload::GenerateId();
+  PayloadId payloadId = payload.identifier;
   Payload corePayload(payloadId, [payload]() -> InputStream & {
     location::nearby::connections::GNCInputStreamFromNSStream *stream =
         new location::nearby::connections::GNCInputStreamFromNSStream(payload.stream);
@@ -158,7 +158,7 @@ class GNCInputStreamFromNSStream : public InputStream {
   if (result == YES) {
     fileSize = fileSizeValue.longValue;
   }
-  PayloadId payloadId = Payload::GenerateId();
+  PayloadId payloadId = payload.identifier;
   // Add the pair of payloadId and fileURL to the map in the GNCCore.
   [_core insertURLToMapWithPayloadID:payloadId urlToSend:fileURL];
   Payload corePayload(payloadId, InputFile(payloadId, fileSize));

cpp/platform/impl/ios/Source/Internal/GNCDiscoverer.mm

@@ -271,8 +271,6 @@ class GNCDiscoveryListener {
       GNCDiscovererEndpointInfo *endpointInfo = [[GNCDiscovererEndpointInfo alloc] init];
       [discoverer.endpoints setObject:endpointInfo forKey:endpointId];
 
-      // TODO(b/169292092): endpointInfo is an advertisement byte array. Need to implement to
-      // extract the endpoint name not just force to cast string.
       NSString *name = ObjCStringFromCppString(std::string(endpoint_info));
       NSData *info = NSDataFromByteArray(endpoint_info);
       GNCCore *core = discoverer.core;  // don't capture |this| or |discoverer|
@@ -280,7 +278,7 @@ class GNCDiscoveryListener {
       GNCDiscoveredEndpointInfo *discEndpointInfo = [GNCDiscoveredEndpointInfo
                infoWithName:name
                endpointInfo:info
-          requestConnection:^(NSString *name,
+          requestConnection:^(NSData *info,
                               GNCDiscovererConnectionInitializationHandler connInitHandler,
                               GNCConnectionFailureHandler connFailureHandler) {
             endpointInfo.connInitHandler = connInitHandler;
@@ -304,7 +302,7 @@ class GNCDiscoveryListener {
 
             core->_core->RequestConnection(
                 CppStringFromObjCString(endpointId),
-                ConnectionRequestInfo{.endpoint_info = std::move(endpoint_info),
+                ConnectionRequestInfo{.endpoint_info = ByteArrayFromNSData(info),
                                       .listener = std::move(listener)},
                 ConnectionOptions{},
                 ResultListener{.result_cb = [&connFailureHandler](Status status) {

cpp/platform/impl/ios/Source/Internal/GNCPayload.mm

@@ -14,12 +14,18 @@
 
 #import "platform/impl/ios/Source/GNCPayload.h"
 
+#include "core/payload.h"
+#include "platform/base/payload_id.h"
+
 #include <stdlib.h>
 
+using ::location::nearby::connections::Payload;
+using ::location::nearby::PayloadId;
+
 NS_ASSUME_NONNULL_BEGIN
 
-uint64_t GNCRandom64() {
-  return ((uint64_t)arc4random() << 32) + arc4random();
+PayloadId GenerateId() {
+  return Payload::GenerateId();
 }
 
 @implementation GNCBytesPayload
@@ -34,7 +40,7 @@ uint64_t GNCRandom64() {
 }
 
 + (instancetype)payloadWithBytes:(NSData *)bytes {
-  return [[self alloc] initWithBytes:bytes identifier:GNCRandom64()];
+  return [[self alloc] initWithBytes:bytes identifier:GenerateId()];
 }
 
 + (instancetype)payloadWithBytes:(NSData *)bytes identifier:(int64_t)identifier {
@@ -55,7 +61,7 @@ uint64_t GNCRandom64() {
 }
 
 + (instancetype)payloadWithStream:(NSInputStream *)stream {
-  return [[self alloc] initWithStream:stream identifier:GNCRandom64()];
+  return [[self alloc] initWithStream:stream identifier:GenerateId()];
 }
 
 + (instancetype)payloadWithStream:(NSInputStream *)stream identifier:(int64_t)identifier {
@@ -76,7 +82,7 @@ uint64_t GNCRandom64() {
 }
 
 + (instancetype)payloadWithFileURL:(NSURL *)fileURL {
-  return [[self alloc] initWithFileURL:fileURL identifier:GNCRandom64()];
+  return [[self alloc] initWithFileURL:fileURL identifier:GenerateId()];
 }
 
 + (instancetype)payloadWithFileURL:(NSURL *)fileURL identifier:(int64_t)identifier {