From c127735ec33ab4e6fd71f4bb84acc5c30d5e8d76 Mon Sep 17 00:00:00 2001
From: Lukas Korba <lukas.korba@seznam.cz>
Date: Thu, 11 May 2023 16:50:03 +0200
Subject: [PATCH] [#1048] Implement ScanDownloadedButUnscannedAction

- scan downloaded but unscanned blocks
---
 .../ScanDownloadedButUnscannedAction.swift    | 32 +++++++++++--------
 1 file changed, 19 insertions(+), 13 deletions(-)

diff --git a/Sources/ZcashLightClientKit/Block/Actions/ScanDownloadedButUnscannedAction.swift b/Sources/ZcashLightClientKit/Block/Actions/ScanDownloadedButUnscannedAction.swift
index 352235a3..1601a2c2 100644
--- a/Sources/ZcashLightClientKit/Block/Actions/ScanDownloadedButUnscannedAction.swift
+++ b/Sources/ZcashLightClientKit/Block/Actions/ScanDownloadedButUnscannedAction.swift
@@ -8,25 +8,31 @@
 import Foundation
 
 class ScanDownloadedButUnscannedAction {
-    init(container: DIContainer) { }
+    let logger: Logger
+    let blockScanner: BlockScanner
+    
+    init(container: DIContainer) {
+        logger = container.resolve(Logger.self)
+        blockScanner = container.resolve(BlockScanner.self)
+    }
 }
 
 extension ScanDownloadedButUnscannedAction: Action {
     var removeBlocksCacheWhenFailed: Bool { false }
 
     func run(with context: ActionContext, didUpdate: @escaping (CompactBlockProcessorNG.Event) async -> Void) async throws -> ActionContext {
-//        if let range = ranges.downloadedButUnscannedRange {
-//            logger.debug("Starting scan with downloaded but not scanned blocks with range: \(range.lowerBound)...\(range.upperBound)")
-//            try await blockScanner.scanBlocks(at: range, totalProgressRange: totalProgressRange) { [weak self] lastScannedHeight in
-//                let progress = BlockProgress(
-//                    startHeight: totalProgressRange.lowerBound,
-//                    targetHeight: totalProgressRange.upperBound,
-//                    progressHeight: lastScannedHeight
-//                )
-//                await self?.notifyProgress(.syncing(progress))
-//            }
-//        }
-
+        if let range = await context.syncRanges.downloadedButUnscannedRange {
+            logger.debug("Starting scan with downloaded but not scanned blocks with range: \(range.lowerBound)...\(range.upperBound)")
+            let totalProgressRange = await context.totalProgressRange
+            try await blockScanner.scanBlocks(at: range, totalProgressRange: totalProgressRange) { lastScannedHeight in
+                let progress = BlockProgress(
+                    startHeight: totalProgressRange.lowerBound,
+                    targetHeight: totalProgressRange.upperBound,
+                    progressHeight: lastScannedHeight
+                )
+                await didUpdate(.progressUpdated(.syncing(progress)))
+            }
+        }
         await context.update(state: .download)
         return context
     }