Integrated import wallet via 1Password

Trust/Wallet/ViewControllers/ImportWalletViewController.swift

@@ -2,6 +2,7 @@
 
 import UIKit
 import Eureka
+import OnePasswordExtension
 
 protocol ImportWalletViewControllerDelegate: class {
     func didImportAccount(account: Account, in viewController: ImportWalletViewController)
@@ -17,6 +18,14 @@ class ImportWalletViewController: FormViewController {
         static let password = "password"
     }
 
+    var keystoreRow: TextAreaRow? {
+        return form.rowBy(tag: Values.keystore)
+    }
+
+    var passwordRow: TextFloatLabelRow? {
+        return form.rowBy(tag: Values.password)
+    }
+
     weak var delegate: ImportWalletViewControllerDelegate?
 
     override func viewDidLoad() {
@@ -24,6 +33,15 @@ class ImportWalletViewController: FormViewController {
 
         title = viewModel.title
 
+        if OnePasswordExtension.shared().isAppExtensionAvailable() {
+            self.navigationItem.rightBarButtonItem = UIBarButtonItem(
+                image: R.image.onepasswordButton(),
+                style: .done,
+                target: self,
+                action: #selector(onePasswordImport)
+            )
+        }
+
         form = Section()
 
             <<< AppFormAppearance.textArea(tag: Values.keystore) {
@@ -57,9 +75,6 @@ class ImportWalletViewController: FormViewController {
 
     func importWallet() {
 
-        let keystoreRow: TextAreaRow? = form.rowBy(tag: Values.keystore)
-        let passwordRow: TextFloatLabelRow? = form.rowBy(tag: Values.password)
-
         let input = keystoreRow?.value ?? ""
         let password = passwordRow?.value ?? ""
 
@@ -71,4 +86,31 @@ class ImportWalletViewController: FormViewController {
             displayError(error: error)
         }
     }
+
+    func onePasswordImport() {
+
+        OnePasswordExtension().findLogin(
+            forURLString: OnePasswordConfig.url,
+            for: self,
+            sender: nil
+        ) { [weak self] results, error in
+            guard let `self` = self else { return }
+            if let error = error {
+                return self.displayError(error: error)
+            }
+            guard let password = results?[AppExtensionPasswordKey] as? String else { return }
+
+            let result = OnePasswordConverter.fromPassword(password: password)
+
+            switch result {
+            case .success(let password, let keystore):
+                self.keystoreRow?.value = keystore
+                self.keystoreRow?.reload()
+                self.passwordRow?.value = password
+                self.passwordRow?.reload()
+            case .failure(let error):
+                self.displayError(error: error)
+            }
+        }
+    }
 }