1 files changed, 79 insertions, 0 deletions
diff --git a/platform/darwin/src/MGLSDKMetricsManager.h b/platform/darwin/src/MGLSDKMetricsManager.h
new file mode 100644
index 0000000000..49b3391a72
--- /dev/null
+++ b/platform/darwin/src/MGLSDKMetricsManager.h
@@ -0,0 +1,79 @@
+#import <Foundation/Foundation.h>
+#import "MGLFoundation.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+/**
+ :nodoc:
+ The metrics type used to handle metrics events.
+ */
+typedef NS_ENUM(NSUInteger, MGLMetricType) {
+    /** :nodoc:
+     Metric that measures performance.
+     */
+    MGLMetricTypePerformance = 0,
+};
+
+FOUNDATION_EXTERN MGL_EXPORT NSString* MGLStringFromMetricType(MGLMetricType metricType);
+
+@class MGLMetricsManager;
+
+/**
+ :nodoc:
+ The `MGLMetricsManagerDelegate` protocol defines a set of methods that you
+ can use to receive metric events.
+ */
+@protocol MGLMetricsManagerDelegate <NSObject>
+
+/**
+ :nodoc:
+ Asks the delegate whether the metrics manager should handle metric events.
+ 
+ @param metricsManager The metrics manager object.
+ @param metricType The metric type event.
+ */
+- (BOOL)metricsManager:(MGLMetricsManager *)metricsManager shouldHandleMetric:(MGLMetricType)metricType;
+
+/**
+ :nodoc:
+ Asks the delegate to handle metric events.
+ 
+ @param metricsManager The metrics manager object.
+ @param metricType The metric type event.
+ @param attributes The metric attributes.
+ */
+- (void)metricsManager:(MGLMetricsManager *)metricsManager didCollectMetric:(MGLMetricType)metricType withAttributes:(NSDictionary *)attributes;
+
+@end
+
+/**
+ :nodoc:
+ The `MGLMetricsManager` object provides a single poin to collect SDK metrics
+ such as tile download latency.
+ */
+MGL_EXPORT
+@interface MGLMetricsManager : NSObject
+
+/**
+ :nodoc:
+ Returns the shared metrics manager object.
+ */
+@property (class, nonatomic, readonly) MGLMetricsManager *sharedManager;
+
+/**
+ :nodoc:
+ The metrics manager delegate that will recieve metric events.
+ */
+@property (nonatomic, weak) id<MGLMetricsManagerDelegate> delegate;
+
+#if TARGET_OS_IOS
+/**
+ :nodoc:
+ Sends metric events to Mapbox.
+ */
+- (void)pushMetric:(MGLMetricType)metricType withAttributes:(NSDictionary *)attributes;
+#endif
+
+@end
+
+NS_ASSUME_NONNULL_END