Move isElementCallAvailable fun to new SessionEnterpriseService, which implementations can get the current MatrixClient.

libraries/matrix/api/src/main/kotlin/io/element/android/libraries/matrix/api/MatrixClient.kt

@@ -164,6 +164,11 @@ interface MatrixClient {
      * Check if the user can report a room.
      */
     suspend fun canReportRoom(): Boolean
+
+    /**
+     * Return true if Livekit Rtc is supported, i.e. if Element Call is available.
+     */
+    suspend fun isLivekitRtcSupported(): Boolean
 }
 
 /**

libraries/matrix/impl/src/main/kotlin/io/element/android/libraries/matrix/impl/RustMatrixClient.kt

@@ -678,6 +678,10 @@ class RustMatrixClient(
         }.getOrDefault(false)
     }
 
+    override suspend fun isLivekitRtcSupported(): Boolean = withContext(sessionDispatcher) {
+        innerClient.isLivekitRtcSupported()
+    }
+
     private suspend fun File.getCacheSize(
         includeCryptoDb: Boolean = false,
     ): Long = withContext(sessionDispatcher) {

libraries/matrix/test/src/main/kotlin/io/element/android/libraries/matrix/test/FakeMatrixClient.kt

@@ -89,6 +89,7 @@ class FakeMatrixClient(
     private val ignoreUserResult: (UserId) -> Result<Unit> = { lambdaError() },
     private var unIgnoreUserResult: (UserId) -> Result<Unit> = { Result.success(Unit) },
     private val canReportRoomLambda: () -> Boolean = { false },
+    private val isLivekitRtcSupportedLambda: () -> Boolean = { false },
     override val ignoredUsersFlow: StateFlow<ImmutableList<UserId>> = MutableStateFlow(persistentListOf()),
 ) : MatrixClient {
     var setDisplayNameCalled: Boolean = false
@@ -334,4 +335,8 @@ class FakeMatrixClient(
     override suspend fun canReportRoom(): Boolean {
         return canReportRoomLambda()
     }
+
+    override suspend fun isLivekitRtcSupported(): Boolean {
+        return isLivekitRtcSupportedLambda()
+    }
 }