Улучшена фоновая синхронизация

usecases/src/main/java/com/github/nullptroma/wallenc/usecases/RunStorageSyncUseCase.kt

@@ -16,6 +16,7 @@ import java.util.concurrent.atomic.AtomicBoolean
 class RunStorageSyncUseCase(
     private val orchestrator: ITaskOrchestrator,
     private val syncEngine: IStorageSyncEngine,
+    private val syncReadiness: StorageSyncReadiness,
 ) {
     private val running = AtomicBoolean(false)
 
@@ -71,6 +72,7 @@ class RunStorageSyncUseCase(
     }
 
     suspend fun runBlocking() {
+        syncReadiness.awaitReady()
         syncEngine.syncAllGroups()
     }
 }

usecases/src/main/java/com/github/nullptroma/wallenc/usecases/StorageSyncReadiness.kt

@@ -0,0 +1,49 @@
+package com.github.nullptroma.wallenc.usecases
+
+import com.github.nullptroma.wallenc.domain.interfaces.IStorageSyncGroupStore
+import com.github.nullptroma.wallenc.domain.interfaces.IVaultsManager
+import kotlinx.coroutines.delay
+import java.util.UUID
+
+/**
+ * Ожидание готовности хранилищ перед синхронизацией (холодный старт из WorkManager).
+ */
+class StorageSyncReadiness(
+    private val vaultsManager: IVaultsManager,
+    private val groupStore: IStorageSyncGroupStore,
+    private val findStorageUseCase: FindStorageUseCase,
+) {
+    suspend fun awaitReady(
+        timeoutMs: Long = DEFAULT_TIMEOUT_MS,
+        pollIntervalMs: Long = POLL_INTERVAL_MS,
+    ) {
+        val groups = groupStore.getGroups()
+        if (groups.isEmpty()) {
+            return
+        }
+        val requiredUuids = groups.flatMap { it.storageUuids }.toSet()
+        val deadline = System.currentTimeMillis() + timeoutMs
+
+        while (System.currentTimeMillis() < deadline) {
+            if (!isAnyVaultScanning()) {
+                break
+            }
+            delay(pollIntervalMs)
+        }
+
+        while (System.currentTimeMillis() < deadline) {
+            if (requiredUuids.all { uuid -> findStorageUseCase.find(uuid) != null }) {
+                return
+            }
+            delay(pollIntervalMs)
+        }
+    }
+
+    private fun isAnyVaultScanning(): Boolean =
+        vaultsManager.vaults.value.any { it.storagesScanInProgress.value }
+
+    private companion object {
+        private const val DEFAULT_TIMEOUT_MS = 120_000L
+        private const val POLL_INTERVAL_MS = 250L
+    }
+}