[pref][ios] Implement performance monitoring

ios/RNFirebase/RNFirebasePerformance.h

@@ -0,0 +1,18 @@
+#ifndef RNFirebasePerformance_h
+#define RNFirebasePerformance_h
+
+#if __has_include(<React/RCTBridgeModule.h>)
+#import <React/RCTBridgeModule.h>
+#else // Compatibility for RN version < 0.40
+#import "RCTBridgeModule.h"
+#endif
+
+@interface RNFirebasePerformance : NSObject <RCTBridgeModule> {
+
+}
+
+@property NSMutableDictionary *traces;
+
+@end
+
+#endif

ios/RNFirebase/RNFirebasePerformance.m

@@ -0,0 +1,47 @@
+#import "RNFirebasePerformance.h"
+#import "FirebasePerformance/FIRPerformance.h"
+
+@implementation RNFirebasePerformance
+RCT_EXPORT_MODULE();
+
+- (id)init {
+    self = [super init];
+    if (self != nil) {
+        _traces = [[NSMutableDictionary alloc] init];
+    }
+    return self;
+}
+
+- (FIRTrace *)getOrCreateTrace:(NSString *)identifier {
+    if (_traces[identifier]) {
+        return _traces[identifier];
+    }
+    FIRTrace *trace = [FIRPerformance startTraceWithName:identifier];
+    _traces[identifier] = trace;
+    return trace;
+}
+
+RCT_EXPORT_METHOD(setPerformanceCollectionEnabled:
+    (BOOL *) enabled) {
+    [FIRPerformance sharedInstance].dataCollectionEnabled = (BOOL) enabled;
+}
+
+RCT_EXPORT_METHOD(start:
+    (NSString *) identifier) {
+    [[self getOrCreateTrace:identifier] start];
+}
+
+RCT_EXPORT_METHOD(stop:
+    (NSString *) identifier) {
+    [[self getOrCreateTrace:identifier] stop];
+    _traces[identifier] = nil;
+}
+
+RCT_EXPORT_METHOD(incrementCounter:
+    (NSString *) identifier
+            event:
+            (NSString *) event) {
+    [[self getOrCreateTrace:identifier] incrementCounterNamed:event];
+}
+
+@end

tests/ios/Podfile

@@ -1,6 +1,6 @@
 install! 'cocoapods', :deterministic_uuids => false
 # Uncomment this line to define a global platform for your project
-# platform :ios, '9.0'
+# platform :ios, '8.0'
 
 target 'ReactNativeFirebaseDemo' do
   platform :ios, '8.0'
@@ -15,7 +15,6 @@ target 'ReactNativeFirebaseDemo' do
 
   pod 'Firebase/Auth'
   pod 'Firebase/Analytics'
-  pod 'Firebase/AppIndexing'
   pod 'Firebase/Core'
   pod 'Firebase/Crash'
   pod 'Firebase/Database'
@@ -23,6 +22,7 @@ target 'ReactNativeFirebaseDemo' do
   pod 'Firebase/Messaging'
   pod 'Firebase/RemoteConfig'
   pod 'Firebase/Storage'
+  pod 'Firebase/Performance'
 
 
   pod 'RNFirebase', :path => './../../'

tests/ios/ReactNativeFirebaseDemo.xcodeproj/project.pbxproj

@@ -1059,7 +1059,7 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
-			shellScript = "diff \"${PODS_ROOT}/../Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [ $? != 0 ] ; then\n    # print error to STDERR\n    echo \"error: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\" >&2\n    exit 1\nfi\n";
+			shellScript = "diff \"${PODS_PODFILE_DIR_PATH}/Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [ $? != 0 ] ; then\n    # print error to STDERR\n    echo \"error: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\" >&2\n    exit 1\nfi\n";
 			showEnvVarsInLog = 0;
 		};
 		2D02E4CB1E0B4B27006451C7 /* Bundle React Native Code And Images */ = {