49 lines
1.5 KiB
Swift
49 lines
1.5 KiB
Swift
//
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// RewindAction.swift
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//
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//
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// Created by Lukáš Korba on 09.08.2023.
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//
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import Foundation
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final class RewindAction {
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var downloader: BlockDownloader
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let rustBackend: ZcashRustBackendWelding
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var downloaderService: BlockDownloaderService
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let logger: Logger
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init(container: DIContainer) {
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downloader = container.resolve(BlockDownloader.self)
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rustBackend = container.resolve(ZcashRustBackendWelding.self)
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downloaderService = container.resolve(BlockDownloaderService.self)
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logger = container.resolve(Logger.self)
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}
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private func update(context: ActionContext) async -> ActionContext {
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await context.update(state: .processSuggestedScanRanges)
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return context
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}
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}
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extension RewindAction: Action {
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var removeBlocksCacheWhenFailed: Bool { false }
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func run(with context: ActionContext, didUpdate: @escaping (CompactBlockProcessor.Event) async -> Void) async throws -> ActionContext {
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guard let rewindHeight = await context.requestedRewindHeight else {
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return await update(context: context)
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}
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logger.debug("Executing rewind.")
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await downloader.rewind(latestDownloadedBlockHeight: rewindHeight)
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try await rustBackend.rewindToHeight(height: Int32(rewindHeight))
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// clear cache
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try await downloaderService.rewind(to: rewindHeight)
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return await update(context: context)
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}
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func stop() async { }
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}
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