Refresh wallets balances on pull

AlphaWallet/Accounts/ViewControllers/AccountsViewController.swift

@@ -43,6 +43,7 @@ class AccountsViewController: UIViewController {
         tableView.rowHeight = UITableView.automaticDimension
         tableView.register(AccountViewCell.self)
         tableView.register(WalletSummaryTableViewCell.self)
+        tableView.addSubview(tableViewRefreshControl)
         roundedBackground.addSubview(tableView)
 
         NSLayoutConstraint.activate([
@@ -53,6 +54,12 @@ class AccountsViewController: UIViewController {
         ] + roundedBackground.createConstraintsWithContainer(view: view))
     }
 
+    private lazy var tableViewRefreshControl: UIRefreshControl = {
+        let control = UIRefreshControl()
+        control.addTarget(self, action: #selector(pullToRefresh), for: .valueChanged)
+        return control
+    }()
+
     override func viewWillAppear(_ animated: Bool) {
         super.viewWillAppear(animated)
 
@@ -81,6 +88,15 @@ class AccountsViewController: UIViewController {
         }
     }
 
+    @objc private func pullToRefresh(_ sender: UIRefreshControl) {
+        tableViewRefreshControl.beginRefreshing()
+        walletBalanceCoordinator.refreshBalance(updatePolicy: .all, force: true).done { _ in
+            // no-op
+        }.cauterize().finally { [weak self] in
+            self?.tableViewRefreshControl.endRefreshing()
+        }
+    }
+
     private func delete(account: Wallet) {
         navigationController?.displayLoading(text: R.string.localizable.deleting())
         let result = keystore.delete(wallet: account)

AlphaWallet/Core/Coordinators/WalletBalance/PrivateBalanceFetcher.swift

@@ -21,7 +21,7 @@ protocol PrivateBalanceFetcherType: AnyObject {
     var delegate: PrivateTokensDataStoreDelegate? { get set }
     var erc721TokenIdsFetcher: Erc721TokenIdsFetcher? { get set }
 
-    func refreshBalance(updatePolicy: PrivateBalanceFetcher.RefreshBalancePolicy, force: Bool)
+    func refreshBalance(updatePolicy: PrivateBalanceFetcher.RefreshBalancePolicy, force: Bool) -> Promise<Void>
 }
 
 // swiftlint:disable type_body_length
@@ -65,13 +65,17 @@ class PrivateBalanceFetcher: PrivateBalanceFetcherType {
             case .initial(let tokenObjects):
                 let tokenObjects = tokenObjects.map { Activity.AssignedToken(tokenObject: $0) }
 
-                strongSelf.refreshBalance(tokenObjects: Array(tokenObjects), updatePolicy: .all, force: true)
+                strongSelf.refreshBalance(tokenObjects: Array(tokenObjects), updatePolicy: .all, force: true).done { _ in
+                        // no-op
+                }.cauterize()
             case .update(let updates, _, let insertions, _):
                 let values = updates.map { Activity.AssignedToken(tokenObject: $0) }
                 let tokenObjects = insertions.map { values[$0] }
                 guard !tokenObjects.isEmpty else { return }
 
-                strongSelf.refreshBalance(tokenObjects: tokenObjects, updatePolicy: .all, force: true)
+                strongSelf.refreshBalance(tokenObjects: tokenObjects, updatePolicy: .all, force: true).done { _ in
+                    // no-op
+                }.cauterize()
 
                 strongSelf.delegate?.didAddToken(in: strongSelf)
             case .error:
@@ -89,7 +93,7 @@ class PrivateBalanceFetcher: PrivateBalanceFetcherType {
         return openSea.makeFetchPromise()
     }
 
-    func refreshBalance(updatePolicy: RefreshBalancePolicy, force: Bool = false) {
+    func refreshBalance(updatePolicy: RefreshBalancePolicy, force: Bool = false) -> Promise<Void> {
         Promise<[Activity.AssignedToken]> { seal in
             DispatchQueue.main.async { [weak self] in
                 guard let strongSelf = self else { return seal.reject(PMKError.cancelled) }
@@ -97,9 +101,9 @@ class PrivateBalanceFetcher: PrivateBalanceFetcherType {
 
                 seal.fulfill(tokenObjects)
             }
-        }.done(on: queue, { tokenObjects in
-            self.refreshBalance(tokenObjects: tokenObjects, updatePolicy: .all, force: false)
-        }).cauterize()
+        }.then(on: queue, { tokenObjects in
+            return self.refreshBalance(tokenObjects: tokenObjects, updatePolicy: .all, force: false)
+        })
     }
 
     private func refreshBalanceForNonErc721Or1155Tokens(tokens: [Activity.AssignedToken]) -> Promise<[PrivateBalanceFetcher.TokenBatchOperation]> {
@@ -118,8 +122,8 @@ class PrivateBalanceFetcher: PrivateBalanceFetcherType {
         case all
     }
 
-    private func refreshBalance(tokenObjects: [Activity.AssignedToken], updatePolicy: RefreshBalancePolicy, force: Bool = false) {
-        guard !isRefeshingBalance || force else { return }
+    private func refreshBalance(tokenObjects: [Activity.AssignedToken], updatePolicy: RefreshBalancePolicy, force: Bool = false) -> Promise<Void> {
+        guard !isRefeshingBalance || force else { return .value(()) }
 
         isRefeshingBalance = true
         var promises: [Promise<Bool?>] = []
@@ -134,18 +138,18 @@ class PrivateBalanceFetcher: PrivateBalanceFetcherType {
             promises += [refreshEthBalance(etherToken: etherToken)]
         }
 
-        firstly {
+        return firstly {
             when(resolved: promises).map(on: queue, { values -> Bool? in
                 //NOTE: taking for first element means that values was updated
                 return values.compactMap { $0.optionalValue }.compactMap { $0 }.first
             })
-        }.done(on: queue, { balanceValueHasChange in
+        }.get(on: queue, { balanceValueHasChange in
             self.isRefeshingBalance = false
 
             if let value = balanceValueHasChange, value {
                 self.delegate?.didUpdate(in: self)
             }
-        })
+        }).asVoid()
     }
 
     private func refreshEthBalance(etherToken: Activity.AssignedToken) -> Promise<Bool?> {

AlphaWallet/Core/Coordinators/WalletBalance/WalletBalanceCoordinator.swift

@@ -16,8 +16,9 @@ protocol WalletBalanceCoordinatorType: AnyObject {
     func subscribableWalletBalance(wallet: Wallet) -> Subscribable<WalletBalance>
     func subscribableTokenBalance(addressAndRPCServer: AddressAndRPCServer) -> Subscribable<BalanceBaseViewModel>
     func start()
-    func refreshBalance()
-    func refreshEthBalance()
+    func refreshBalance() -> Promise<Void>
+    func refreshEthBalance() -> Promise<Void>
+    func refreshBalance(updatePolicy: PrivateBalanceFetcher.RefreshBalancePolicy, force: Bool) -> Promise<Void>
     
     func transactionsStorage(wallet: Wallet, server: RPCServer) -> TransactionsStorage
     func tokensDatastore(wallet: Wallet, server: RPCServer) -> TokensDataStore
@@ -83,12 +84,22 @@ class WalletBalanceCoordinator: NSObject, WalletBalanceCoordinatorType {
         return .init(nil)
     }
 
-    func refreshBalance() {
-        balanceFetchers[keystore.currentWallet].flatMap { $0.refreshBalance() }
+    func refreshBalance() -> Promise<Void> {
+        guard let promise = balanceFetchers[keystore.currentWallet].flatMap({ $0.refreshBalance() }) else { return .value(()) }
+        return promise
     }
 
-    func refreshEthBalance() {
-        balanceFetchers[keystore.currentWallet].flatMap { $0.refreshEthBalance() }
+    func refreshEthBalance() -> Promise<Void> {
+        guard let promise = balanceFetchers[keystore.currentWallet].flatMap({ $0.refreshEthBalance() }) else { return .value(()) }
+        return promise
+    }
+
+    ///Refreshes available wallets balances
+    func refreshBalance(updatePolicy: PrivateBalanceFetcher.RefreshBalancePolicy, force: Bool) -> Promise<Void> {
+        let promises = keystore.wallets.compactMap { wallet in
+            balanceFetchers[wallet]?.refreshBalance(updatePolicy: updatePolicy, force: force)
+        }
+        return when(resolved: promises).asVoid()
     }
 
     func start() {

AlphaWallet/Core/Coordinators/WalletBalance/WalletBalanceFetcher.swift

@@ -28,8 +28,9 @@ protocol WalletBalanceFetcherType: AnyObject {
     func start()
     func stop()
     func update(servers: [RPCServer])
-    func refreshEthBalance()
-    func refreshBalance()
+    func refreshEthBalance() -> Promise<Void>
+    func refreshBalance() -> Promise<Void>
+    func refreshBalance(updatePolicy: PrivateBalanceFetcher.RefreshBalancePolicy, force: Bool) -> Promise<Void>
     func transactionsStorage(server: RPCServer) -> TransactionsStorage
     func tokensDatastore(server: RPCServer) -> TokensDataStore
 }
@@ -106,8 +107,8 @@ class WalletBalanceFetcher: NSObject, WalletBalanceFetcherType {
             }
         }
 
-        let delatedServers = services.filter { !servers.contains($0.key) }.map { $0.key }
-        for each in delatedServers {
+        let deletedServers = services.filter { !servers.contains($0.key) }.map { $0.key }
+        for each in deletedServers {
             services.remove(at: each)
         }
     }
@@ -226,33 +227,48 @@ class WalletBalanceFetcher: NSObject, WalletBalanceFetcherType {
     }
 
     func start() {
-        timedCallForBalanceRefresh()
+        timedCallForBalanceRefresh().done { _ in
+
+        }.cauterize()
 
         timer = Timer.scheduledTimer(withTimeInterval: Self.updateBalanceInterval, repeats: true) { [weak self] _ in
             guard let strongSelf = self else { return }
 
             strongSelf.queue.async {
-                strongSelf.timedCallForBalanceRefresh()
+                strongSelf.timedCallForBalanceRefresh().done { _ in
+
+                }.cauterize()
             }
         }
     }
 
-    private func timedCallForBalanceRefresh() {
-        for each in services {
+    private func timedCallForBalanceRefresh() -> Promise<Void> {
+        let promises = services.map { each in
             each.value.1.refreshBalance(updatePolicy: .all, force: false)
         }
+        return when(resolved: promises).asVoid()
+    }
+
+    func refreshBalance(updatePolicy: PrivateBalanceFetcher.RefreshBalancePolicy, force: Bool) -> Promise<Void> {
+        let promises = services.map { each in
+            each.value.1.refreshBalance(updatePolicy: updatePolicy, force: force)
+        }
+        return when(resolved: promises).asVoid()
     }
 
-    func refreshEthBalance() {
-        for each in services {
+    func refreshEthBalance() -> Promise<Void> {
+        let promises = services.map { each in
             each.value.1.refreshBalance(updatePolicy: .eth, force: true)
         }
+        return when(resolved: promises).asVoid()
     }
 
-    func refreshBalance() {
-        for each in services {
+    func refreshBalance() -> Promise<Void> {
+        let promises = services.map { each in
             each.value.1.refreshBalance(updatePolicy: .ercTokens, force: true)
         }
+
+        return when(resolved: promises).asVoid()
     }
 
     func stop() {

AlphaWallet/Transactions/Coordinators/BalanceCoordinator.swift

@@ -69,10 +69,14 @@ class BalanceCoordinator: NSObject, BalanceCoordinatorType {
     }
 
     func refresh() {
-        walletBalanceCoordinator.refreshBalance()
+        walletBalanceCoordinator.refreshBalance().done { _ in
+
+        }.cauterize()
     }
     func refreshEthBalance() {
-        walletBalanceCoordinator.refreshEthBalance()
+        walletBalanceCoordinator.refreshEthBalance().done { _ in
+
+        }.cauterize()
     }
 
     func update() {

AlphaWalletTests/Redeem/CreateRedeemTests.swift

@@ -18,11 +18,14 @@ class CreateRedeemTests: XCTestCase {
         let account = keyStore.createAccount()
         let message = CreateRedeem(token: TokenObject()).redeemMessage(tokenIds: token).0
         let data = message.data(using: String.Encoding.utf8)
-
-        let signature = try! keyStore.signMessageData(data!, for: account.dematerialize())
+        do {
+            let signature = try keyStore.signMessageData(data!, for: account.dematerialize())
             //message and signature is to go in qr code
             debug("message: " + message)
-        debug(try! "signature: " + signature.dematerialize().hexString)
+            debug(try "signature: " + signature.dematerialize().hexString)
             //TODO no test?
+        } catch {
+            debug(error)
+        }
     }
 }

AlphaWalletTests/Settings/Coordinators/SettingsCoordinatorTests.swift

@@ -72,6 +72,8 @@ class SettingsCoordinatorTests: XCTestCase {
     }
 }
 
+import PromiseKit
+
 final class FakeWalletBalanceCoordinator: WalletBalanceCoordinatorType {
     var subscribableWalletsSummary: Subscribable<WalletSummary> = .init(nil)
 
@@ -87,12 +89,16 @@ final class FakeWalletBalanceCoordinator: WalletBalanceCoordinatorType {
 
     }
 
-    func refreshBalance() {
-
+    func refreshBalance() -> Promise<Void> {
+        return .value(())
     }
 
-    func refreshEthBalance() {
+    func refreshEthBalance() -> Promise<Void> {
+        return .value(())
+    }
 
+    func refreshBalance(updatePolicy: PrivateBalanceFetcher.RefreshBalancePolicy, force: Bool) -> Promise<Void> {
+        return .value(())
     }
     
     func transactionsStorage(wallet: Wallet, server: RPCServer) -> TransactionsStorage {