Skip full block downloading if SPV is not synchronized

Author: memekas

nodecore-spv/src/main/java/org/veriblock/spv/model/DownloadStatus.kt

@@ -10,4 +10,7 @@ enum class DownloadStatus {
 
     fun isDownloading(): Boolean =
         DOWNLOADING == this
+
+    fun isReady(): Boolean =
+        READY == this
 }

nodecore-spv/src/main/java/org/veriblock/spv/net/PeerEventListener.kt

@@ -367,7 +367,8 @@ class PeerEventListener(
         // TODO(warchant): if allBlocksAccepted == false here, block can not be connected or invalid
         // maybe ban peer? for now, do nothing
 
-        // download full block bodies to manage mempool
+        // download full block bodies to manage mempool. Skip if SPV is not synchronized
+        if (!spvContext.spvService.getDownloadStatus().downloadStatus.isReady()) return
         try {
             val blocksToRequest = ArrayList<BlockRequest>()