59 lines
2.0 KiB
Swift
59 lines
2.0 KiB
Swift
//
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// UpdateSubtreeRootsAction.swift
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//
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//
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// Created by Lukas Korba on 01.08.2023.
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//
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import Foundation
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final class UpdateSubtreeRootsAction {
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let configProvider: CompactBlockProcessor.ConfigProvider
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let rustBackend: ZcashRustBackendWelding
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var service: LightWalletService
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let logger: Logger
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init(container: DIContainer, configProvider: CompactBlockProcessor.ConfigProvider) {
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self.configProvider = configProvider
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service = container.resolve(LightWalletService.self)
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rustBackend = container.resolve(ZcashRustBackendWelding.self)
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logger = container.resolve(Logger.self)
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}
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}
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extension UpdateSubtreeRootsAction: 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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var request = GetSubtreeRootsArg()
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request.shieldedProtocol = .sapling
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logger.debug("Attempt to get subtree roots, this may fail because lightwalletd may not support Spend before Sync.")
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let stream = service.getSubtreeRoots(request)
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var roots: [SubtreeRoot] = []
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do {
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for try await subtreeRoot in stream {
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roots.append(subtreeRoot)
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}
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} catch ZcashError.serviceSubtreeRootsStreamFailed(LightWalletServiceError.timeOut) {
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throw ZcashError.serviceSubtreeRootsStreamFailed(LightWalletServiceError.timeOut)
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}
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logger.debug("Sapling tree has \(roots.count) subtrees")
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do {
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try await rustBackend.putSaplingSubtreeRoots(startIndex: UInt64(request.startIndex), roots: roots)
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await context.update(state: .updateChainTip)
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} catch {
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logger.debug("putSaplingSubtreeRoots failed with error \(error.localizedDescription)")
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throw ZcashError.compactBlockProcessorPutSaplingSubtreeRoots(error)
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}
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return context
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}
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func stop() async { }
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}
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