LONDON-IOS/GMERemittance/Module/SendMoneyParent/User Interface/View/SendMoneyParentViewController.swift

//
//  SendMoneyParentViewController.swift
//  GMERemittance
//
//  Created by gme_2 on 28/08/2018.
//Copyright © 2018 Gobal Money Express Co. Ltd. All rights reserved.
//

import UIKit

protocol HUDStatusDelegate {
    func showLoading()
    func hideLoading()
}

protocol SendMoneyPaymentModeActionDelegate {
    func continueToExchangeAction()
}

protocol SendMoneyExchangeRateActionDelegate {
    func continueToVerificationAction()
}


class SendMoneyParentViewController: UIViewController {
    
    enum StateButtons: Int {
        case paymentMode = 1
        case exchange = 2
        case verification = 3
    }
    
    struct Constants {
        static let stateRedColor = UIColor.init(hex: "#EC1C24")
        static let stateGreenColor = UIColor.init(hex: "8CC241")
    }
    
    // MARK: IBOutlets
    
    @IBOutlet weak var containerView: UIView!
     @IBOutlet weak var paymentModeButton: UIButton!
    @IBOutlet weak var exchangeRateButton: UIButton!
    @IBOutlet weak var verificationButton: UIButton!
    // MARK: Properties
    
    var paymentModeViewController: UIViewController?
    var exchangeViewController: UIViewController?
    var verificationViewController: UIViewController?
    
    var presenter: SendMoneyParentModuleInterface?
    var stateButtons: [UIButton] = []
    var state: StateButtons = .paymentMode {
        didSet {
            self.updateState(state: state)
        }
    }
    var receipient: Recipient? {
        didSet {
           print( self.receipient?.firstName)
        }
    }
    
    // MARK: VC's Life cycle
    
    override func viewDidLoad() {
        super.viewDidLoad()
        self.setup()
        self.presenter?.viewIsReady()
        self.setupViewControllers()
        self.addPaymentModeViewController()
   
        
    }
    
    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)
    }
    
    // MARK: IBActions
    
    @IBAction func paymentMode(_ sender: UIButton) {
        self.addPaymentModeViewController()
        self.state = StateButtons.paymentMode
    }
    
    @IBAction func exchangeRate(_ sender: UIButton) {
        self.addExchangeViewController()
        self.state = StateButtons.exchange
    }
    
    @IBAction func verification(_ sender: UIButton) {
        self.addVerificationViewController()
        self.state = StateButtons.verification
    }
    
    // MARK: Other Functions

    private func setup() {
        // all setup should be done here
        self.setTitle(title: "Send Money")
        self.state = StateButtons.paymentMode
        self.configureViews()
    }
    
    private func setupNavigationBar() {

    }
    
    private func setTitle(title: String) {
        self.navigationItem.title = title
    }
    
    private func setupViewControllers() {
        let paymentModelWireframe = SendMoneyPaymentModeWireframe()
        let pvc  = paymentModelWireframe.getMainView() as! SendMoneyPaymentModeViewController
        pvc.recipient = self.receipient
        pvc.hudDelegate = self
        pvc.actionDelegate = self
        self.paymentModeViewController = pvc
        
        let exchangeViewWireframe = SendMoneyExchangeRateWireframe()
        let evc =  exchangeViewWireframe.getMainView() as! SendMoneyExchangeRateViewController
        evc.reciepient = self.receipient
        evc.actionDelegate = self
        evc.hudDelegate = self
        self.exchangeViewController = evc
        
        let verificationWireframe = SendMoneyVerificationWireframe()
        let vvc = verificationWireframe.getMainView() as! SendMoneyVerificationViewController
        vvc.reciepient = self.receipient
        vvc.hudDelegate = self
         self.verificationViewController = vvc
        
    }
    
    
    
    private func configureViews() {
        self.paymentModeButton.tag = 1
        self.exchangeRateButton.tag = 2
        self.verificationButton.tag = 3
         self.stateButtons = [paymentModeButton,exchangeRateButton, verificationButton ]
        [paymentModeButton, exchangeRateButton, verificationButton].forEach({
            $0?.rounded()
        })
    }
    
    func updateState(state: StateButtons) {
        switch state {
        case .paymentMode:
            self.paymentModeButton.backgroundColor = Constants.stateGreenColor
            self.exchangeRateButton.backgroundColor = Constants.stateRedColor
            self.verificationButton.backgroundColor = Constants.stateRedColor
        case .exchange:
            self.paymentModeButton.backgroundColor = Constants.stateGreenColor
            self.exchangeRateButton.backgroundColor = Constants.stateGreenColor
            self.verificationButton.backgroundColor = Constants.stateRedColor
        case .verification:
            self.paymentModeButton.backgroundColor = Constants.stateGreenColor
            self.exchangeRateButton.backgroundColor = Constants.stateGreenColor
            self.verificationButton.backgroundColor = Constants.stateGreenColor
        }
    }
    
    
    
    
    func addPaymentModeViewController() {
        guard let paymentModeViewController = self.paymentModeViewController else {return}
        self.addChildViewController(paymentModeViewController)
        UIView.transition(with: self.containerView, duration: 0.33, options: .transitionCrossDissolve, animations: {
            self.containerView.addSubview(paymentModeViewController.view)
        }, completion: nil)
        paymentModeViewController.view.frame = containerView.bounds
        paymentModeViewController.view.autoresizingMask = [.flexibleWidth, .flexibleHeight]
        paymentModeViewController.didMove(toParentViewController: self)
    }
    
    func addExchangeViewController() {
        guard let exchangeViewController = self.exchangeViewController else {return}
        self.addChildViewController(exchangeViewController)
        UIView.transition(with: self.containerView, duration: 0.33, options: .transitionCrossDissolve, animations: {
            self.containerView.addSubview(exchangeViewController.view)
        }, completion: nil)
        
        exchangeViewController.view.frame = containerView.bounds
        exchangeViewController.view.autoresizingMask = [.flexibleWidth, .flexibleHeight]
        exchangeViewController.didMove(toParentViewController: self)
    }
    
    func addVerificationViewController() {
        guard let verificationViewController = self.verificationViewController else {return}
        self.addChildViewController(verificationViewController)
        UIView.transition(with: self.containerView, duration: 0.33, options: .transitionCrossDissolve, animations: {
            self.containerView.addSubview(verificationViewController.view)
        }, completion: nil)
        verificationViewController.view.frame = containerView.bounds
        verificationViewController.view.autoresizingMask = [.flexibleWidth, .flexibleHeight]
        verificationViewController.didMove(toParentViewController: self)
    }
}

// MARK: SendMoneyParentViewInterface
extension SendMoneyParentViewController: SendMoneyParentViewInterface {
    func show(model: Recipient) {
        self.receipient = model
    }
}

extension SendMoneyParentViewController: HUDStatusDelegate {
    func showLoading() {
        self.showProgressHud()
    }
    
    func hideLoading() {
        self.hideProgressHud()
    }
}

extension SendMoneyParentViewController: SendMoneyPaymentModeActionDelegate {
    func continueToExchangeAction() {
        self.addExchangeViewController()
        self.state = StateButtons.exchange
        
    }
}

extension SendMoneyParentViewController: SendMoneyExchangeRateActionDelegate {
    func continueToVerificationAction() {
        self.addVerificationViewController()
        self.state = StateButtons.verification
    }
}