65 lines
1.8 KiB
Swift
65 lines
1.8 KiB
Swift
//
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// Storage.swift
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// ZcashLightClientKit
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//
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// Created by Francisco Gindre on 12/09/2019.
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// Copyright © 2019 Electric Coin Company. All rights reserved.
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//
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import Foundation
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@testable import ZcashLightClientKit
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class ZcashConsoleFakeStorage: CompactBlockStoring {
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func latestHeight() throws -> Int {
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return self.latestBlockHeight
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}
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func write(blocks: [ZcashCompactBlock]) throws {
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fakeSave(blocks: blocks)
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}
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func rewind(to height: BlockHeight) throws {
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fakeRewind(to: height)
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}
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var latestBlockHeight: BlockHeight = 0
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var delay = DispatchTimeInterval.milliseconds(300)
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init(latestBlockHeight: BlockHeight = 0) {
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self.latestBlockHeight = latestBlockHeight
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}
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func latestHeight(result: @escaping (Result<BlockHeight, Error>) -> Void) {
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DispatchQueue.main.asyncAfter(deadline: .now() + delay) {
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result(.success(self.latestBlockHeight))
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}
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}
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fileprivate func fakeSave(blocks: [ZcashCompactBlock]) {
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blocks.forEach {
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print("saving block \($0)")
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self.latestBlockHeight = $0.height
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}
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}
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func write(blocks: [ZcashCompactBlock], completion: ((Error?) -> Void)?) {
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DispatchQueue.main.asyncAfter(deadline: .now() + delay) {
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self.fakeSave(blocks: blocks)
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completion?(nil)
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}
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}
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func rewind(to height: BlockHeight, completion: ((Error?) -> Void)?) {
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DispatchQueue.main.asyncAfter(deadline: .now() + delay) {
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self.fakeRewind(to: height)
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completion?(nil)
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}
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}
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private func fakeRewind(to height: BlockHeight) {
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print("rewind to \(height)")
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self.latestBlockHeight = min(self.latestBlockHeight, height)
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}
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}
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