Add metric method to logger, replace datalake calls with new method

(cherry picked from commit 7a026bbeae75514b64f928d7ff59707c518fd5e5)

src/Navigation.tsx

@@ -32,6 +32,7 @@ import {
 import {RouteParams, State} from '#/lib/routes/types'
 import {attachRouteToLogEvents, logEvent} from '#/lib/statsig/statsig'
 import {bskyTitle} from '#/lib/strings/headings'
+import {logger} from '#/logger'
 import {isNative, isWeb} from '#/platform/detection'
 import {useModalControls} from '#/state/modals'
 import {useUnreadNotifications} from '#/state/queries/notifications/unread'
@@ -729,20 +730,16 @@ function RoutesContainer({children}: React.PropsWithChildren<{}>) {
       linking={LINKING}
       theme={theme}
       onStateChange={() => {
-        logEvent(
-          'router:navigate',
-          {
-            from: prevLoggedRouteName.current,
-          },
-          {lake: true},
-        )
+        logger.metric('router:navigate', {
+          from: prevLoggedRouteName.current,
+        })
         prevLoggedRouteName.current = getCurrentRouteName()
       }}
       onReady={() => {
         attachRouteToLogEvents(getCurrentRouteName)
         logModuleInitTime()
         onReady()
-        logEvent('router:navigate', {}, {lake: true})
+        logger.metric('router:navigate', {})
       }}>
       {children}
     </NavigationContainer>

src/lib/statsig/statsig.tsx

@@ -91,6 +91,9 @@ export function toClout(n: number | null | undefined): number | undefined {
   }
 }
 
+/**
+ * @deprecated use `logger.metric()` instead
+ */
 export function logEvent<E extends keyof MetricEvents>(
   eventName: E & string,
   rawMetadata: MetricEvents[E] & FlatJSONRecord,
@@ -111,7 +114,13 @@ export function logEvent<E extends keyof MetricEvents>(
       }
       Statsig.logEvent(ev, null, fullMetadata)
     }
-    logger.info(eventName, fullMetadata)
+    /**
+     * All datalake events should be sent using `logger.metric`, and we don't
+     * want to double-emit logs to other transports.
+     */
+    if (!options.lake) {
+      logger.info(eventName, fullMetadata)
+    }
   } catch (e) {
     // A log should never interrupt the calling code, whatever happens.
     logger.error('Failed to log an event', {message: e})

src/logger/index.ts

@@ -1,6 +1,8 @@
 import {nanoid} from 'nanoid/non-secure'
 
+import {logEvent} from '#/lib/statsig/statsig'
 import {add} from '#/logger/logDump'
+import {MetricEvents} from '#/logger/metrics'
 import {bitdriftTransport} from '#/logger/transports/bitdrift'
 import {consoleTransport} from '#/logger/transports/console'
 import {sentryTransport} from '#/logger/transports/sentry'
@@ -89,6 +91,25 @@ export class Logger {
     this.transport({level: LogLevel.Error, message: error, metadata})
   }
 
+  metric<E extends keyof MetricEvents>(
+    event: E & string,
+    metadata: MetricEvents[E],
+    options: {
+      /**
+       * Optionally also send to StatSig
+       */
+      statsig?: boolean
+    } = {statsig: false},
+  ) {
+    logEvent(event, metadata, {
+      lake: !options.statsig,
+    })
+
+    for (const transport of this.transports) {
+      transport(LogLevel.Info, LogContext.Metric, event, metadata, Date.now())
+    }
+  }
+
   addTransport(transport: Transport) {
     this.transports.push(transport)
     return () => {