An advanced Ethereum/EVM mobile wallet
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alpha-wallet-ios/Trust/InCoordinator.swift

581 lines
23 KiB

// Copyright SIX DAY LLC. All rights reserved.
import Foundation
import TrustKeystore
import UIKit
import RealmSwift
import BigInt
protocol InCoordinatorDelegate: class {
func didCancel(in coordinator: InCoordinator)
func didUpdateAccounts(in coordinator: InCoordinator)
}
enum Tabs {
case wallet
case alphaWalletSettings
case transactions
var className: String {
switch self {
case .wallet:
return String(describing: TokensViewController.self)
case .transactions:
return String(describing: TransactionsViewController.self)
case .alphaWalletSettings:
return String(describing: SettingsViewController.self)
}
}
}
class InCoordinator: Coordinator {
let navigationController: UINavigationController
var coordinators: [Coordinator] = []
let initialWallet: Wallet
var keystore: Keystore
var config: Config
let appTracker: AppTracker
lazy var ethPrice: Subscribable<Double> = {
var value = Subscribable<Double>(nil)
fetchEthPrice()
return value
}()
var ethBalance = Subscribable<BigInt>(nil)
weak var delegate: InCoordinatorDelegate?
var transactionCoordinator: TransactionCoordinator? {
return self.coordinators.flatMap {
$0 as? TransactionCoordinator
}.first
}
var ticketsCoordinator: TicketsCoordinator? {
return self.coordinators.flatMap {
$0 as? TicketsCoordinator
}.first
}
var tabBarController: UITabBarController? {
return self.navigationController.viewControllers.first as? UITabBarController
}
lazy var helpUsCoordinator: HelpUsCoordinator = {
return HelpUsCoordinator(
navigationController: navigationController,
appTracker: appTracker
)
}()
init(
navigationController: UINavigationController = NavigationController(),
wallet: Wallet,
keystore: Keystore,
config: Config = Config(),
appTracker: AppTracker = AppTracker()
) {
self.navigationController = navigationController
self.initialWallet = wallet
self.keystore = keystore
self.config = config
self.appTracker = appTracker
}
func start() {
showTabBar(for: initialWallet)
checkDevice()
helpUsCoordinator.start()
addCoordinator(helpUsCoordinator)
}
func fetchEthPrice() {
let keystore = try! EtherKeystore()
let migration = MigrationInitializer(account: keystore.recentlyUsedWallet! , chainID: config.chainID)
migration.perform()
let web3 = self.web3(for: config.server)
web3.start()
let realm = self.realm(for: migration.config)
let tokensStorage = TokensDataStore(realm: realm, account: keystore.recentlyUsedWallet!, config: config, web3: web3)
tokensStorage.updatePrices()
let etherToken = TokensDataStore.etherToken(for: config)
tokensStorage.tokensModel.subscribe {[weak self] tokensModel in
guard let tokens = tokensModel, let eth = tokens.first(where: { $0 == etherToken }) else {
return
}
var ticker = tokensStorage.coinTicker(for: eth)
if let ticker = ticker {
self?.ethPrice.value = Double(ticker.price)
}
}
}
func showTabBar(for account: Wallet) {
let migration = MigrationInitializer(account: account, chainID: config.chainID)
migration.perform()
let web3 = self.web3(for: config.server)
web3.start()
let realm = self.realm(for: migration.config)
let tokensStorage = TokensDataStore(realm: realm, account: account, config: config, web3: web3)
let alphaWalletTokensStorage = TokensDataStore(realm: realm, account: account, config: config, web3: web3)
let balanceCoordinator = GetBalanceCoordinator(web3: web3)
let balance = BalanceCoordinator(wallet: account, config: config, storage: tokensStorage)
let session = WalletSession(
account: account,
config: config,
web3: web3,
balanceCoordinator: balance
)
let transactionsStorage = TransactionsStorage(
realm: realm
)
transactionsStorage.removeTransactions(for: [.failed, .pending, .unknown])
let inCoordinatorViewModel = InCoordinatorViewModel(config: config)
let transactionCoordinator = TransactionCoordinator(
session: session,
storage: transactionsStorage,
keystore: keystore,
tokensStorage: tokensStorage
)
transactionCoordinator.rootViewController.tabBarItem = UITabBarItem(title: NSLocalizedString("transactions.tabbar.item.title", value: "Transactions", comment: ""), image: R.image.feed()?.withRenderingMode(.alwaysOriginal), selectedImage: R.image.feed())
transactionCoordinator.delegate = self
transactionCoordinator.start()
addCoordinator(transactionCoordinator)
let tabBarController = TabBarController()
tabBarController.viewControllers = [
transactionCoordinator.navigationController,
]
tabBarController.tabBar.isTranslucent = false
tabBarController.didShake = { [weak self] in
if inCoordinatorViewModel.canActivateDebugMode {
self?.activateDebug()
}
}
if inCoordinatorViewModel.tokensAvailable {
let tokensCoordinator = TokensCoordinator(
session: session,
keystore: keystore,
tokensStorage: alphaWalletTokensStorage
)
tokensCoordinator.rootViewController.tabBarItem = UITabBarItem(title: R.string.localizable.walletTokensTabbarItemTitle(), image: R.image.tab_wallet()?.withRenderingMode(.alwaysOriginal), selectedImage: R.image.tab_wallet())
tokensCoordinator.delegate = self
tokensCoordinator.start()
addCoordinator(tokensCoordinator)
tabBarController.viewControllers?.append(tokensCoordinator.navigationController)
}
let marketplaceController = MarketplaceViewController()
let marketplaceNavigationController = UINavigationController(rootViewController: marketplaceController)
marketplaceController.tabBarItem = UITabBarItem(title: R.string.localizable.aMarketplaceTabbarItemTitle(), image: R.image.tab_marketplace()?.withRenderingMode(.alwaysOriginal), selectedImage: R.image.tab_marketplace())
tabBarController.viewControllers?.append(marketplaceNavigationController)
let alphaSettingsCoordinator = SettingsCoordinator(
keystore: keystore,
session: session,
storage: transactionsStorage,
balanceCoordinator: balanceCoordinator
)
alphaSettingsCoordinator.rootViewController.tabBarItem = UITabBarItem(
title: R.string.localizable.aSettingsNavigationTitle(),
image: R.image.tab_settings()?.withRenderingMode(.alwaysOriginal),
selectedImage: R.image.tab_settings()
)
alphaSettingsCoordinator.delegate = self
alphaSettingsCoordinator.start()
addCoordinator(alphaSettingsCoordinator)
if let viewControllers = tabBarController.viewControllers, !viewControllers.isEmpty {
tabBarController.viewControllers?.append(alphaSettingsCoordinator.navigationController)
} else {
tabBarController.viewControllers = [alphaSettingsCoordinator.navigationController]
}
navigationController.setViewControllers(
[tabBarController],
animated: false
)
navigationController.setNavigationBarHidden(true, animated: false)
addCoordinator(transactionCoordinator)
keystore.recentlyUsedWallet = account
hideTitlesInTabBarController(tabBarController: tabBarController)
showTab(inCoordinatorViewModel.initialTab)
let etherToken = TokensDataStore.etherToken(for: config)
tokensStorage.tokensModel.subscribe {[weak self] tokensModel in
guard let tokens = tokensModel, let eth = tokens.first(where: { $0 == etherToken }) else {
return
}
if let balance = BigInt(eth.value) {
self?.ethBalance.value = BigInt(eth.value)
guard !(balance.isZero) else { return }
self?.promptBackupWallet()
}
}
}
private func promptBackupWallet() {
let coordinator = PromptBackupCoordinator()
addCoordinator(coordinator)
coordinator.delegate = self
coordinator.start()
}
private func hideTitlesInTabBarController(tabBarController: UITabBarController) {
guard let items = tabBarController.tabBar.items else { return }
for each in items {
if UIDevice.current.userInterfaceIdiom == .phone {
each.imageInsets = UIEdgeInsets(top: 6, left: 0, bottom: -6, right: 0)
}
each.title = ""
}
}
@objc func dismissTransactions() {
navigationController.dismiss(animated: true)
}
func showTab(_ selectTab: Tabs) {
guard let viewControllers = tabBarController?.viewControllers else {
return
}
for controller in viewControllers {
if let nav = controller as? UINavigationController {
if nav.viewControllers[0].className == selectTab.className {
tabBarController?.selectedViewController = nav
}
}
}
}
@objc func activateDebug() {
config.isDebugEnabled = !config.isDebugEnabled
guard let transactionCoordinator = transactionCoordinator else {
return
}
restart(for: transactionCoordinator.session.account, in: transactionCoordinator)
}
func restart(for account: Wallet, in coordinator: TransactionCoordinator) {
self.navigationController.dismiss(animated: false, completion: nil)
coordinator.navigationController.dismiss(animated: true, completion: nil)
coordinator.stop()
removeAllCoordinators()
showTabBar(for: account)
}
func removeAllCoordinators() {
coordinators.removeAll()
}
func checkDevice() {
let deviceChecker = CheckDeviceCoordinator(
navigationController: navigationController,
jailbreakChecker: DeviceChecker()
)
deviceChecker.start()
addCoordinator(deviceChecker)
}
func showPaymentFlow(for type: PaymentFlow) {
guard let transactionCoordinator = transactionCoordinator else {
return
}
let session = transactionCoordinator.session
let tokenStorage = transactionCoordinator.tokensStorage
switch (type, session.account.type) {
case (.send, .real), (.request, _):
let coordinator = PaymentCoordinator(
flow: type,
session: session,
keystore: keystore,
storage: tokenStorage
)
coordinator.delegate = self
if let topVC = navigationController.presentedViewController {
topVC.present(coordinator.navigationController, animated: true, completion: nil)
} else {
navigationController.present(coordinator.navigationController, animated: true, completion: nil)
}
coordinator.start()
addCoordinator(coordinator)
case (_, _):
navigationController.displayError(error: InCoordinatorError.onlyWatchAccount)
}
}
func showPaymentFlow(for paymentFlow: PaymentFlow, ticketHolders: [TicketHolder] = [], in ticketsCoordinator: TicketsCoordinator) {
guard let transactionCoordinator = transactionCoordinator else {
return
}
//TODO do we need to pass these (especially tokenStorage) to showTransferViewController(for:ticketHolders:) to make sure storage is synchronized?
let session = transactionCoordinator.session
let tokenStorage = transactionCoordinator.tokensStorage
switch (paymentFlow, session.account.type) {
case (.send, .real), (.request, _):
ticketsCoordinator.showTransferViewController(for: paymentFlow, ticketHolders: ticketHolders)
case (_, _):
navigationController.displayError(error: InCoordinatorError.onlyWatchAccount)
}
}
func showTicketList(for type: PaymentFlow, token: TokenObject) {
guard let transactionCoordinator = transactionCoordinator else {
return
}
let session = transactionCoordinator.session
let tokenStorage = transactionCoordinator.tokensStorage
let ticketsCoordinator = TicketsCoordinator(
session: session,
keystore: keystore,
tokensStorage: tokenStorage
)
addCoordinator(ticketsCoordinator)
ticketsCoordinator.token = token
ticketsCoordinator.type = type
ticketsCoordinator.delegate = self
ticketsCoordinator.start()
navigationController.present(ticketsCoordinator.navigationController, animated: true, completion: nil)
}
func showTicketListToRedeem(for token: TokenObject, coordinator: TicketsCoordinator) {
coordinator.showRedeemViewController()
}
func showTicketListToSell(for paymentFlow: PaymentFlow, coordinator: TicketsCoordinator) {
coordinator.showSellViewController(for: paymentFlow)
}
private func handlePendingTransaction(transaction: SentTransaction) {
transactionCoordinator?.dataCoordinator.addSentTransaction(transaction)
}
private func realm(for config: Realm.Configuration) -> Realm {
return try! Realm(configuration: config)
}
private func web3(for server: RPCServer) -> Web3Swift {
return Web3Swift(url: config.rpcURL)
}
private func showTransactionSent(transaction: SentTransaction) {
let alertController = UIAlertController(title: "Transaction Sent!", message: "Wait for the transaction to be mined on the network to see details.", preferredStyle: UIAlertControllerStyle.alert)
let copyAction = UIAlertAction(title: NSLocalizedString("send.action.copy.transaction.title", value: "Copy Transaction ID", comment: ""), style: UIAlertActionStyle.default, handler: { _ in
UIPasteboard.general.string = transaction.id
})
alertController.addAction(copyAction)
alertController.addAction(UIAlertAction(title: NSLocalizedString("OK", value: "OK", comment: ""), style: UIAlertActionStyle.default, handler: nil))
navigationController.present(alertController, animated: true, completion: nil)
}
}
extension InCoordinator: TicketsCoordinatorDelegate {
func didPressTransfer(for type: PaymentFlow, ticketHolders: [TicketHolder], in coordinator: TicketsCoordinator) {
showPaymentFlow(for: type, ticketHolders: ticketHolders, in: coordinator)
}
func didPressRedeem(for token: TokenObject, in coordinator: TicketsCoordinator) {
showTicketListToRedeem(for: token, coordinator: coordinator)
}
func didPressSell(for type: PaymentFlow, in coordinator: TicketsCoordinator) {
showTicketListToSell(for: type, coordinator: coordinator)
}
func didCancel(in coordinator: TicketsCoordinator) {
navigationController.dismiss(animated: true)
removeCoordinator(coordinator)
}
func didPressViewRedemptionInfo(in viewController: UIViewController) {
let controller = TicketRedemptionInfoViewController()
viewController.navigationController?.pushViewController(controller, animated: true)
}
func didPressViewEthereumInfo(in viewController: UIViewController) {
let controller = WhatIsEthereumInfoViewController()
viewController.navigationController?.pushViewController(controller, animated: true)
}
}
extension InCoordinator: TransactionCoordinatorDelegate {
func didPress(for type: PaymentFlow, in coordinator: TransactionCoordinator) {
showPaymentFlow(for: type)
}
func didCancel(in coordinator: TransactionCoordinator) {
delegate?.didCancel(in: self)
coordinator.navigationController.dismiss(animated: true, completion: nil)
coordinator.stop()
removeAllCoordinators()
}
}
extension InCoordinator: SettingsCoordinatorDelegate {
func didCancel(in coordinator: SettingsCoordinator) {
removeCoordinator(coordinator)
coordinator.navigationController.dismiss(animated: true, completion: nil)
delegate?.didCancel(in: self)
}
func didRestart(with account: Wallet, in coordinator: SettingsCoordinator) {
guard let transactionCoordinator = transactionCoordinator else {
return
}
restart(for: account, in: transactionCoordinator)
}
func didUpdateAccounts(in coordinator: SettingsCoordinator) {
delegate?.didUpdateAccounts(in: self)
}
func didPressShowWallet(in coordinator: SettingsCoordinator) {
showPaymentFlow(for: .request)
}
}
extension InCoordinator: TokensCoordinatorDelegate {
func didPress(for type: PaymentFlow, in coordinator: TokensCoordinator) {
showPaymentFlow(for: type)
}
func didPressStormBird(for type: PaymentFlow, token: TokenObject, in coordinator: TokensCoordinator) {
showTicketList(for: type, token: token)
}
// When a user clicks a Universal Link, either the user pays to publish a
// transaction or, if the ticket price = 0 (new purchase or incoming
// transfer from a buddy), the user can send the data to a paymaster.
// This function deal with the special case that the ticket price = 0
// but not sent to the paymaster because the user has ether.
func importPaidSignedOrder(signedOrder: SignedOrder, tokenObject: TokenObject, completion: @escaping (Bool) -> Void) {
let web3 = self.web3(for: config.server)
web3.start()
let signature = signedOrder.signature.substring(from: 2)
let v = UInt8(signature.substring(from: 128), radix: 16)!
let r = "0x" + signature.substring(with: Range(uncheckedBounds: (0, 64)))
let s = "0x" + signature.substring(with: Range(uncheckedBounds: (64, 128)))
ClaimOrderCoordinator(web3: web3).claimOrder(indices: signedOrder.order.indices, expiry: signedOrder.order.expiry, v: v, r: r, s: s) {
result in
switch result {
case .success(let payload):
let address: Address = self.initialWallet.address
let transaction = UnconfirmedTransaction(
transferType: .stormBirdOrder(tokenObject),
value: BigInt(signedOrder.order.price),
to: address,
data: Data(bytes: payload.hexa2Bytes),
gasLimit: Constants.gasLimit,
gasPrice: Constants.gasPriceDefaultStormbird,
nonce: .none,
v: v,
r: r,
s: s,
expiry: signedOrder.order.expiry,
indices: signedOrder.order.indices
)
let wallet = self.keystore.recentlyUsedWallet!
let migration = MigrationInitializer(account: wallet, chainID: self.config.chainID)
migration.perform()
let realm = self.realm(for: migration.config)
let tokensStorage = TokensDataStore(realm: realm, account: wallet, config: self.config, web3: web3)
let balance = BalanceCoordinator(wallet: wallet, config: self.config, storage: tokensStorage)
let session = WalletSession(
account: wallet,
config: self.config,
web3: web3,
balanceCoordinator: balance
)
let account = try! EtherKeystore().getAccount(for: wallet.address)!
let configurator = TransactionConfigurator(
session: session,
account: account,
transaction: transaction
)
let signTransaction = configurator.formUnsignedTransaction()
//TODO why is the gas price loaded in twice?
let signedTransaction = UnsignedTransaction(
value: signTransaction.value,
account: account,
to: signTransaction.to,
nonce: signTransaction.nonce,
data: signTransaction.data,
gasPrice: Constants.gasPriceDefaultStormbird,
gasLimit: signTransaction.gasLimit,
chainID: self.config.chainID
)
let sendTransactionCoordinator = SendTransactionCoordinator(
session: session,
keystore: self.keystore,
confirmType: .signThenSend
)
sendTransactionCoordinator.send(transaction: signedTransaction) { result in
switch result {
case .success(let res):
completion(true)
print(res)
case .failure(let error):
completion(false)
print(error)
}
}
case .failure: break
}
}
}
}
extension InCoordinator: PaymentCoordinatorDelegate {
func didFinish(_ result: ConfirmResult, in coordinator: PaymentCoordinator) {
switch result {
case .sentTransaction(let transaction):
handlePendingTransaction(transaction: transaction)
coordinator.navigationController.dismiss(animated: true, completion: nil)
showTransactionSent(transaction: transaction)
removeCoordinator(coordinator)
// Once transaction sent, show transactions screen.
showTab(.transactions)
case .signedTransaction: break
}
}
func didCancel(in coordinator: PaymentCoordinator) {
coordinator.navigationController.dismiss(animated: true, completion: nil)
removeCoordinator(coordinator)
}
}
extension InCoordinator: PromptBackupCoordinatorDelegate {
func viewControllerForPresenting(in coordinator: PromptBackupCoordinator) -> UIViewController? {
return navigationController
}
func didFinish(in coordinator: PromptBackupCoordinator) {
removeCoordinator(coordinator)
}
}