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[#1028] Runtime switch of lightwalletd servers
- prototype of the solution implemented [#1028] Runtime switch of lightwalletd servers - error handling done - localized all new texts - custom server resolved with all possible parsing states - persistency of selected server done [#1028] Runtime switch of lightwalletd servers (#1044) - changelog update [#1028] Runtime switch of lightwalletd servers (#1044) - Unfortunately the compiler has a bug so Circular reference error is not possible to solve, Apple fixed reported issue from October 2023 last week so we should expect fix in Xcode 15.3, beta is released but still no fix. Until that moment I moved placeholders to the view and will move it back to the stores once the issue is resolved
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145 changes: 145 additions & 0 deletions
145
modules/Sources/Features/ServerSetup/ServerSetupStore.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,145 @@ | ||
| // | ||
| // ServerSetup.swift | ||
| // secant-testnet | ||
| // | ||
| // Created by Lukáš Korba on 2024-02-07. | ||
| // | ||
|
|
||
| import Foundation | ||
| import ComposableArchitecture | ||
| import ZcashLightClientKit | ||
|
|
||
| import Generated | ||
| import SDKSynchronizer | ||
| import ZcashSDKEnvironment | ||
|
|
||
| @Reducer | ||
| public struct ServerSetup { | ||
| let udKey = ZcashSDKEnvironment.Servers.Constants.udServerKey | ||
| let udCustomServerKey = ZcashSDKEnvironment.Servers.Constants.udCustomServerKey | ||
|
|
||
| @ObservableState | ||
| public struct State: Equatable { | ||
| @Presents var alert: AlertState<Action>? | ||
| var isUpdatingServer = false | ||
| var initialServer: ZcashSDKEnvironment.Servers = .mainnet | ||
| var server: ZcashSDKEnvironment.Servers = .mainnet | ||
| var customServer: String | ||
|
|
||
| public init( | ||
| isUpdatingServer: Bool = false, | ||
| server: ZcashSDKEnvironment.Servers = .mainnet, | ||
| customServer: String = "" | ||
| ) { | ||
| self.isUpdatingServer = isUpdatingServer | ||
| self.server = server | ||
| self.customServer = customServer | ||
| } | ||
| } | ||
|
|
||
| public enum Action: Equatable, BindableAction { | ||
| case alert(PresentationAction<Action>) | ||
| case binding(BindingAction<State>) | ||
| case onAppear | ||
| case setServerTapped | ||
| case someServerTapped(ZcashSDKEnvironment.Servers) | ||
| case switchFailed(ZcashError) | ||
| case switchSucceeded | ||
| } | ||
|
|
||
| public init() {} | ||
|
|
||
| @Dependency(\.mainQueue) var mainQueue | ||
| @Dependency(\.sdkSynchronizer) var sdkSynchronizer | ||
| @Dependency(\.userDefaults) var userDefaults | ||
|
|
||
| public var body: some ReducerOf<Self> { | ||
| BindingReducer() | ||
|
|
||
| Reduce { state, action in | ||
| switch action { | ||
| case .onAppear: | ||
| guard let storedServerRaw = userDefaults.objectForKey(udKey) as? String, let storedServer = ZcashSDKEnvironment.Servers(rawValue: storedServerRaw) else { | ||
| return .none | ||
| } | ||
| if let storedCustomServerRaw = userDefaults.objectForKey(udCustomServerKey) as? String { | ||
| state.customServer = storedCustomServerRaw | ||
| } | ||
| state.server = storedServer | ||
| state.initialServer = storedServer | ||
| return .none | ||
|
|
||
| case .alert(.dismiss): | ||
| state.alert = nil | ||
| return .none | ||
|
|
||
| case .alert: | ||
| return .none | ||
|
|
||
| case .binding: | ||
| return .none | ||
|
|
||
| case .setServerTapped: | ||
| guard state.initialServer != state.server || state.server == .custom else { | ||
| return .none | ||
| } | ||
|
|
||
| state.isUpdatingServer = true | ||
|
|
||
| // custom server needs to be stored first | ||
| if state.server == .custom { | ||
| userDefaults.setValue(state.customServer, udCustomServerKey) | ||
| } | ||
|
|
||
| return .run { [server = state.server] send in | ||
| do { | ||
| guard let lightWalletEndpoint = server.lightWalletEndpoint(userDefaults) else { | ||
| throw ZcashError.synchronizerServerSwitch | ||
| } | ||
| try await sdkSynchronizer.switchToEndpoint(lightWalletEndpoint) | ||
| try await mainQueue.sleep(for: .seconds(1)) | ||
| await send(.switchSucceeded) | ||
| } catch { | ||
| await send(.switchFailed(error.toZcashError())) | ||
| } | ||
| } | ||
|
|
||
| case .someServerTapped(let newChange): | ||
| state.server = newChange | ||
| return .none | ||
|
|
||
| case .switchFailed(let error): | ||
| state.isUpdatingServer = false | ||
| userDefaults.remove(udCustomServerKey) | ||
| state.alert = AlertState.endpoindSwitchFailed(error) | ||
| return .none | ||
|
|
||
| case .switchSucceeded: | ||
| userDefaults.setValue(state.server.rawValue, udKey) | ||
| state.isUpdatingServer = false | ||
| state.initialServer = state.server | ||
| if state.server != .custom { | ||
| userDefaults.remove(udCustomServerKey) | ||
| state.customServer = "" | ||
| } | ||
| return .none | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| // MARK: Alerts | ||
|
|
||
| extension AlertState where Action == ServerSetup.Action { | ||
| public static func endpoindSwitchFailed(_ error: ZcashError) -> AlertState { | ||
| AlertState { | ||
| TextState(L10n.ServerSetup.Alert.Failed.title) | ||
| } actions: { | ||
| ButtonState(action: .alert(.dismiss)) { | ||
| TextState(L10n.General.ok) | ||
| } | ||
| } message: { | ||
| TextState(L10n.ServerSetup.Alert.Failed.message(error.message, error.code.rawValue)) | ||
| } | ||
| } | ||
| } |
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