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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
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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 | ||
|
|
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| 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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