Updated on 2026-08-14

domain/settings/src/main/java/com/tangem/domain/settings/UsedeskTokenTtlManager.kt

@@ -0,0 +1,24 @@
+package com.tangem.domain.settings
+
+import kotlinx.coroutines.flow.StateFlow
+import kotlin.time.Duration.Companion.days
+
+/**
+ * Manages the lifetime (TTL) of the Usedesk support-chat token.
+ *
+ * The token is reused while the time since the last chat interaction is below this TTL;
+ * once it expires the SDK obtains a fresh token on the next chat init.
+ *
+ * In production the TTL is fixed to [DEFAULT_TTL_MILLIS]. Debug builds let testers override it
+ * via the Tester Menu (e.g. shorten it to a few minutes to verify token-refresh behaviour).
+ */
+interface UsedeskTokenTtlManager {
+
+    fun getTokenTtlMillis(): StateFlow<Long>
+    fun getTokenTtlMillisSync(): Long
+    suspend fun setTokenTtlMillis(millis: Long)
+
+    companion object {
+        val DEFAULT_TTL_MILLIS: Long = 7.days.inWholeMilliseconds
+    }
+}