Updated on 2026-08-14

app/src/main/java/com/tangem/tap/common/analytics/handlers/firebase/FirebaseAnalyticsEventConverter.kt

@@ -0,0 +1,33 @@
+package com.tangem.tap.common.analytics.handlers.firebase
+
+internal class FirebaseAnalyticsEventConverter {
+
+    fun convertEventName(event: String): String {
+        return convertString(event, FIREBASE_EVENT_NAME_MAX_LENGTH)
+    }
+
+    fun convertEventParams(params: Map<String, String>): Map<String, String> {
+        return params.map { (key, value) ->
+            convertString(key, FIREBASE_EVENT_NAME_MAX_LENGTH) to convertString(value, FIREBASE_EVENT_VALUE_MAX_LENGTH)
+        }.toMap()
+    }
+
+    private fun convertString(string: String, maxLength: Int): String {
+        return string
+            .replace(REPLACING_PATTERN.toRegex(), WORD_SEPARATOR)
+            .trim { it in TRIMMING_CHARACTERS }
+            .trimToLength(maxLength)
+    }
+
+    private fun String.trimToLength(length: Int): String {
+        return if (this.length > length) this.substring(0, length) else this
+    }
+
+    private companion object {
+        const val REPLACING_PATTERN = "[^\\w]+"
+        const val WORD_SEPARATOR = "_"
+        const val TRIMMING_CHARACTERS = WORD_SEPARATOR
+        const val FIREBASE_EVENT_NAME_MAX_LENGTH = 40
+        const val FIREBASE_EVENT_VALUE_MAX_LENGTH = 100
+    }
+}

app/src/main/java/com/tangem/tap/common/analytics/handlers/firebase/FirebaseClient.kt

@@ -18,12 +18,19 @@ internal class FirebaseClient : FirebaseAnalyticsClient {
     private val fbAnalytics = Firebase.analytics
     private val fbCrashlytics = Firebase.crashlytics
 
+    private val eventConverter = FirebaseAnalyticsEventConverter()
+
     override fun logEvent(event: String, params: Map<String, String>) {
-        fbAnalytics.logEvent(event, params.toBundle())
+        fbAnalytics.logEvent(
+            eventConverter.convertEventName(event),
+            eventConverter.convertEventParams(params).toBundle(),
+        )
     }
 
     override fun logErrorEvent(error: Throwable, params: Map<String, String>) {
-        params.forEach { fbCrashlytics.setCustomKey(it.key, it.value) }
+        eventConverter.convertEventParams(params)
+            .forEach { fbCrashlytics.setCustomKey(it.key, it.value) }
+
         fbCrashlytics.recordException(error)
     }