Merge pull request 'Fix issue 015' (#84) from fix015 into milestone2

Reviewed-on: #84

CHANGELOG.md

@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.5.3.0-beta]
+
+## Fixed
+
+- Wallet sync when no new block has been detected on-chain.
+
 ## [0.5.2.0-beta]
 
 ### Changed

src/Zenith/CLI.hs

@@ -348,7 +348,7 @@ drawUI s = [splashDialog s, helpDialog s, displayDialog s, inputDialog s, ui s]
                   (str
                      " _____          _ _   _     \n|__  /___ _ __ (_) |_| |__\n  / // _ \\ '_ \\| | __| '_ \\\n / /|  __/ | | | | |_| | | |\n/____\\___|_| |_|_|\\__|_| |_|") <=>
                 C.hCenter
-                  (withAttr titleAttr (str "Zcash Wallet v0.5.2.0-beta")) <=>
+                  (withAttr titleAttr (str "Zcash Wallet v0.5.3.0-beta")) <=>
                 C.hCenter (withAttr blinkAttr $ str "Press any key..."))
         else emptyWidget
     capCommand :: String -> String -> Widget Name
@@ -590,8 +590,12 @@ scanZebra dbP zHost zPort b eChan = do
       liftIO $ BC.writeBChan eChan $ TickMsg "Invalid starting block for scan"
     else do
       let bList = [(sb + 1) .. (zgb_blocks bStatus)]
-      let step = (1.0 :: Float) / fromIntegral (zgb_blocks bStatus - (sb + 1))
-      mapM_ (processBlock pool step) bList
+      if not (null bList)
+        then do
+          let step =
+                (1.0 :: Float) / fromIntegral (zgb_blocks bStatus - (sb + 1))
+          mapM_ (processBlock pool step) bList
+        else liftIO $ BC.writeBChan eChan $ TickVal 1.0
   where
     processBlock :: ConnectionPool -> Float -> Int -> IO ()
     processBlock pool step bl = do

zenith.cabal

@@ -1,6 +1,6 @@
 cabal-version:    3.0
 name:             zenith
-version:          0.5.2.0-beta
+version:          0.5.3.0-beta
 license:          MIT
 license-file:     LICENSE
 author:           Rene Vergara