LONDON-IOS/GMERemittance/Module/ExchangeRateViewControllerV2.swift

//
//  ExchangeRateViewController.swift
//  GMERemittance
//
//  Created by gme_2 on 20/08/2018.
//  Copyright © 2018 Gobal Money Express Co. Ltd. All rights reserved.
//

import UIKit
import Hex

enum PaymentMode: String {
    case cashDelivery = "cash"
    case bankDeposite = "bank"
    case homeDelivery = "home"
}

class ExchangeRateViewControllerV2: UIViewController {
    
    @IBOutlet weak var collectionView: UICollectionView!
    @IBOutlet weak var exchangeBackground1: UIView!
    @IBOutlet weak var exchangeBackground2: UIView!
    @IBOutlet weak var dropDownImageView: UIImageView!
    @IBOutlet weak var backgroundViewCountryLabel1: UIView!
    @IBOutlet weak var backgroundViewCountryLabel2: UIView!
    @IBOutlet weak var countryListStackView: UIStackView!
    @IBOutlet weak var countryCodeLabel: UILabel!
    @IBOutlet weak var countryFlagImage: UIImageView!
    
    
    var countryListTapGuesture: UITapGestureRecognizer?
    
    var exchangeModels: [ExchangeRateModel] = []
    
    var selectedPaymentIndex: IndexPath = IndexPath.init(row: 0, section: 0)
    
    
    var exchangeRateModels: [ExchangeRateModel] = []
    
    var selectedExchageRateModel: ExchangeRateModel? {
        didSet {
            self.countryCodeLabel.text = self.selectedExchageRateModel?.countryCode
            if let image = CountryFlag().getFlagfor(countryCode: self.selectedExchageRateModel?.countryCode ?? "") {
                self.countryFlagImage.image = image
            }
            self.collectionView.reloadData()
        }
    }
    
    // Life Cycle
    override func viewDidLoad() {
        super.viewDidLoad()
        setup()
        setupDelegates()
        setupTargets()
        setupNavigation()
        createTestModel()
        // todo: show default native country and falg
        // Do any additional setup after loading the view.
    }
    
    
    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)
        self.title = "Today's Rate"
    }

    
    // IBActions
    
    @objc func showCountryList(_ sender: UITapGestureRecognizer) {
        print("show Country List")
        let viewcontroller = UIStoryboard.init(name: "TableViewPicker", bundle: nil).instantiateViewController(withIdentifier: "TablePickerViewController") as! TablePickerViewController
        viewcontroller.data = self.exchangeRateModels
        viewcontroller.type = TablePickerViewTitle.country
        viewcontroller.doneAction = self.countrySelected
//        viewcontroller.defaultSelectedData = [self.selectedExchageRateModel] 
        self.present(viewcontroller, animated: true, completion: nil)
    }
    
    
    //  function
    func countrySelected(model: [ExchangeRateModel]) {
        self.selectedExchageRateModel = model.first
        print(model.first?.country)
        // show country with flag.
    }
    
    
    private func setupTargets() {
        let tapGuesture = UITapGestureRecognizer(target: self, action: #selector(self.showCountryList(_:)))
        self.countryListTapGuesture = tapGuesture
        self.countryListStackView.addGestureRecognizer(self.countryListTapGuesture!)
        
    }
    
    private func setupDelegates() {
        self.collectionView.delegate = self
        self.collectionView.dataSource = self
    }
    
    private func setup() {
        let dropDownImage = #imageLiteral(resourceName: "dropdown_white").withRenderingMode(UIImageRenderingMode.alwaysTemplate)
        let image = dropDownImage
        self.dropDownImageView.image = image
        self.dropDownImageView.tintColor = UIColor.white
        
        // corner Radius
        [backgroundViewCountryLabel1, backgroundViewCountryLabel2].forEach({
            $0?.layer.cornerRadius = 5
        })
        
        [exchangeBackground1, exchangeBackground2].forEach({
            $0?.layer.borderWidth = 1
            $0?.layer.borderColor = UIColor.init(hex: "#E0E0E0").cgColor
            $0?.layer.cornerRadius = 5
        })
    }
    
    
    
    private func setupNavigation() {
        
        var backBtnImage = #imageLiteral(resourceName: "backIconBlack")
        backBtnImage = backBtnImage.withRenderingMode(UIImageRenderingMode.alwaysOriginal)
        self.navigationController!.navigationBar.backIndicatorImage = backBtnImage
        self.navigationController!.navigationBar.backIndicatorTransitionMaskImage = backBtnImage
        self.navigationController?.navigationBar.barTintColor = UIColor.white
    }
}


extension ExchangeRateViewControllerV2: UICollectionViewDelegate {
    
    func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
        
        let cell = collectionView.cellForItem(at: indexPath) as! ExchangeRateCollectionViewCell
        self.selectedPaymentIndex = indexPath
        self.collectionView.reloadData()
    }
}

extension ExchangeRateViewControllerV2: UICollectionViewDataSource {
    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return self.selectedExchageRateModel?.availableServices?.count ?? 0
    }
    
    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        let service = self.selectedExchageRateModel?.availableServices?.elementAt(index: indexPath.row)
        guard let index = PaymentMode.init(rawValue: service?.type ?? "") else {
            return UICollectionViewCell()
            
        }
        switch index {
        case .bankDeposite:
            return configureBankDepositeCell(collectionView: collectionView, indexPath: indexPath)
        case .cashDelivery:
            return configureCashDeliveryCell(collectionView: collectionView, indexPath: indexPath)
        case .homeDelivery:
            return configureHomeDeliveryCell(collectionView: collectionView, indexPath: indexPath)
        }
    }
    
    func configureBankDepositeCell(collectionView: UICollectionView, indexPath: IndexPath) -> UICollectionViewCell {
        let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "ExchangeRateCollectionViewCell", for: indexPath) as! ExchangeRateCollectionViewCell
        cell.cellSelected = self.selectedPaymentIndex == indexPath
        cell.image = #imageLiteral(resourceName: "ic_bank")
        cell.setup()
        return cell
    }
    
    func configureCashDeliveryCell(collectionView: UICollectionView, indexPath: IndexPath) -> UICollectionViewCell {
        let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "ExchangeRateCollectionViewCell", for: indexPath) as! ExchangeRateCollectionViewCell
        cell.cellSelected = self.selectedPaymentIndex == indexPath
        cell.image = #imageLiteral(resourceName: "ic_cash")
        cell.setup()
        return cell
    }
    
    func configureHomeDeliveryCell(collectionView: UICollectionView, indexPath: IndexPath) -> UICollectionViewCell {
        let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "ExchangeRateCollectionViewCell", for: indexPath) as! ExchangeRateCollectionViewCell
        cell.cellSelected = self.selectedPaymentIndex == indexPath
        cell.image = #imageLiteral(resourceName: "ic_homeDelivery")
        cell.setup()
        return cell
    }
}


extension ExchangeRateViewControllerV2 {
    func createTestModel() {
        let service1 = PaymentServiceType()
        service1.type = "cash"
        service1.subtitle = "1 business day"
        
        let service2 = PaymentServiceType()
        service2.type = "bank"
        service2.subtitle = "2 hour"
        
        let service3 = PaymentServiceType()
        service3.type = "home"
        service3.subtitle = "5 business day"
        
        let model = ExchangeRateModel()
        model.country = "Nepal"
        model.countryCode = "Np"
        model.currency = "NRS"
        model.availableServices = [service2, service1]
        
        let model1 = ExchangeRateModel()
        model1.country = "Kore"
        model1.countryCode = "krw"
        model1.currency = "NRS"
        model1.availableServices = [service2, service1, service3]
        
        let model2 = ExchangeRateModel()
        model2.country = "India"
        model2.countryCode = "in"
        model2.currency = "NRS"
        model2.availableServices = [service2]
        
        let model3 = ExchangeRateModel()
        model3.country = "China"
        model3.countryCode = "cn"
        model3.currency = "NRS"
        model3.availableServices = [service2, service1, service3]
        
        let model4 = ExchangeRateModel()
        model4.country = "Cambodia"
        model4.countryCode = "Kh"
        model4.currency = "NRS"
        model4.availableServices = [service2, service1, service3]
        
        self.exchangeRateModels = [model, model1, model2, model3, model4]
    }
}