ZcashLightClientKit/Example/ZcashLightClientSample/ZcashLightClientSample/Get UTXOs/GetUTXOsViewController.swift

//
//  GetUTXOsViewController.swift
//  ZcashLightClientSample
//
//  Created by Francisco Gindre on 12/9/20.
//  Copyright © 2020 Electric Coin Company. All rights reserved.
//

import UIKit
import ZcashLightClientKit
import KRProgressHUD
class GetUTXOsViewController: UIViewController {
    
    @IBOutlet weak var transparentAddressLabel: UILabel!
    @IBOutlet weak var verifiedBalanceLabel: UILabel!
    @IBOutlet weak var totalBalanceLabel: UILabel!
    @IBOutlet weak var messageLabel: UILabel!
    @IBOutlet weak var shieldFundsButton: UIButton!
    
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        updateUI()
        
    }
    
    func updateUI() {
        let tAddress = try! DerivationTool(networkType: ZCASH_NETWORK.networkType).deriveTransparentAddress(seed: DemoAppConfig.seed)
        self.transparentAddressLabel.text = tAddress
        
        let balance = try! AppDelegate.shared.sharedSynchronizer.getTransparentBalance(accountIndex: 0)
        
        self.totalBalanceLabel.text = String(balance.total.asHumanReadableZecBalance())
        self.verifiedBalanceLabel.text = String(balance.verified.asHumanReadableZecBalance())
    }
    
    @IBAction func shieldFunds(_ sender: Any) {
        do {
            let seed =  DemoAppConfig.seed
            let derivationTool = DerivationTool(networkType: ZCASH_NETWORK.networkType)
            let sk = try derivationTool.deriveSpendingKeys(seed: seed, numberOfAccounts: 1).first!
            
            let tsk = try derivationTool.deriveTransparentPrivateKey(seed: seed)
            KRProgressHUD.showMessage("🛡 Shielding 🛡")
            AppDelegate.shared.sharedSynchronizer.shieldFunds(spendingKey: sk, transparentSecretKey: tsk, memo: "shielding is fun!", from: 0) { (result) in
                DispatchQueue.main.async {
                    KRProgressHUD.dismiss()
                    switch result{
                    case .success(let tx):
                        self.messageLabel.text = "funds shielded \(tx)"
                    case .failure(let error):
                        self.messageLabel.text = "Shielding failed: \(error)"
                    }
                }
            }
        } catch {
            self.messageLabel.text = "Error \(error)"
        }
    }
}

extension GetUTXOsViewController: UITextFieldDelegate {
    func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
        updateUI()
        return true
    }
    
    func textFieldDidEndEditing(_ textField: UITextField)  {
        updateUI()
    }
    
}