//
//  RecipientFormViewController.swift
//  GMERemittance
//
//  Created by Fm-user on 12/22/17.
//  Copyright © 2017 Gobal Money Express Co. Ltd. All rights reserved.
//

import UIKit
import SDWebImage

protocol PaginationDelegate {
    func updateCurrentIndex(status:String,recipient: Recipient,pageNumber: Int)
}


class RecipientFormViewController: UIViewController {
    
    @IBOutlet weak var scrollView: UIScrollView!
    @IBOutlet weak var textFieldFirstName: UITextField!
    @IBOutlet weak var textFieldMiddleName: UITextField!
    @IBOutlet weak var textFieldLastName: UITextField!
    @IBOutlet weak var textFieldCountry: UITextField!
    @IBOutlet weak var textFieldState: UITextField!
    @IBOutlet weak var textFieldDistrict: UITextField!
    @IBOutlet weak var textFieldCity: UITextField!
    @IBOutlet weak var textFieldAddress: UITextField!
    @IBOutlet weak var textFieldRelation: UITextField!
    @IBOutlet weak var textFieldMobile: UITextField!
    @IBOutlet weak var textFieldEmail: UITextField!
    @IBOutlet weak var textFieldTransferReason: UITextField!
    
    private var activityIndicator: UIActivityIndicatorView = UIActivityIndicatorView()
    private var pickerView = UIPickerView()
    
    private var arrayOftextFields: [UITextField]!
    private var activeTextField: UITextField?
    private var selectedIndexFor: [String: Int] = [String: Int]()
    
    public var paginationDelegate: PaginationDelegate!
    private var recipientviewmodel: RecipientViewModel!
    
    private var createNewRecipient: Bool!
    
    var noInternetDialog: Bool?
    
    var pageNumber: Int?
    var recipient: Recipient?
    var newRecipient: Recipient?
    
    var pickerData: [String] = [String]()
    var pickerDataState: [String] = [String]()
    var pickerDataDistrict: [String] = [String]()
    var pickerDataRelation: [String] = [String]()
    var pickerDataReason: [String] = [String]()
    
    var countryResult = false
    var stateResult = false
    var districtResult = false
    var relationResult = false
    var trasferReasonResult = false
    private var updateParameters: [String: String] = [String: String] ()
    
    public static var recipientConnectionTimeOutConnectionCheck = 0
    
    var pickerIndex: Int = 0
    func createRecipientObject(recipientId: String) -> Recipient{
        var recipient = Recipient()
        
        recipient.recipientId = recipientId
        recipient.firstName = textFieldFirstName.text
        recipient.middleName = textFieldMiddleName.text
        recipient.lastName = textFieldLastName.text
        
        recipient.city = textFieldCity.text
        recipient.address = textFieldAddress.text
        recipient.mobileNumber = textFieldMobile.text
        recipient.email = textFieldEmail.text
        
        if createNewRecipient! {
            if let index = selectedIndexFor["country"]{
                if recipientviewmodel.getCountryId(index: index) != "N/A"{
                    recipient.country = recipientviewmodel.getCountryId(index: index)
                }
            }
            if let index = selectedIndexFor["relation"]{
                recipient.relation = recipientviewmodel.getRelationValue(index: index)
            }
            if let index = selectedIndexFor["transferReason"]{
                recipient.reason = recipientviewmodel.getTransferReasonValue(index: index)
            }
            if let index = selectedIndexFor["state"]{
                recipient.state = recipientviewmodel.getStateValue(index: index)
            }
            if let index = selectedIndexFor["district"]{
                recipient.district = recipientviewmodel.getDistrictValue(index: index)
            }
        } else {
            
            if let index = selectedIndexFor["country"]{
                recipient.country = recipientviewmodel.getCountryName(index: index)
            }
            if let index = selectedIndexFor["country"]{
                recipient.countryId = recipientviewmodel.getCountryId(index: index)
            }
            if let index = selectedIndexFor["relation"]{
                recipient.relationId = recipientviewmodel.getRelationValue(index: index)
            }
            if let index = selectedIndexFor["relation"]{
                recipient.relation = recipientviewmodel.getRelationName(index: index)
            }
            if let index = selectedIndexFor["transferReason"]{
                recipient.reasonId = recipientviewmodel.getTransferReasonValue(index: index)
            }
            if let index =  selectedIndexFor["transferReason"]{
                recipient.reason = recipientviewmodel.getTransferReasonName(index: index)
            }
            if let index = selectedIndexFor["state"]{
                recipient.state = recipientviewmodel.getState(index: index)
            }
            if let index = selectedIndexFor["state"]{
                recipient.stateId = recipientviewmodel.getStateValue(index: index)
            }
            if let index = selectedIndexFor["district"]{
                recipient.district = recipientviewmodel.getDistrict(index: index)
            }
            if let index = selectedIndexFor["district"]{
                recipient.districtId = recipientviewmodel.getDistrictValue(index: index)
            }
            
        }
        return recipient
    }
    
    @IBAction func createOrUpdateRecipient(_ sender: Any) {
        startLoading()
        let textFieldArray = [textFieldFirstName.text, textFieldLastName.text, textFieldCountry.text, textFieldState.text, textFieldDistrict.text, textFieldCity.text, textFieldAddress.text, textFieldRelation.text, textFieldMobile.text, textFieldTransferReason.text]
        
        guard recipientviewmodel.allFieldsFilled(arrayofInfo: textFieldArray as! [String]) else {
            self.popUpMessageError(value: 11, message: "Please fill all the fields")
            stopLoading()
            return
        }
        
        if createNewRecipient {
            recipientviewmodel.createRecipient()
        } else {
            recipientviewmodel.updateRecipient(recipientId: (recipient?.recipientId)!, updateParams: updateParameters)
        }
        activeTextField?.resignFirstResponder()
    }
    
    func setPageNumber(pageNumber: Int){
        self.pageNumber = pageNumber;
    }
    
    @objc func clearKeyboard() {
        activeTextField?.resignFirstResponder()
    }
    
    override func viewDidLoad() {
        super.viewDidLoad()
        selectedIndexFor["country"] = 0
        selectedIndexFor["transferReason"] = 0
        selectedIndexFor["relation"] = 0
        selectedIndexFor["state"] = 0
        selectedIndexFor["district"] = 0
        setUpNavBar(id: 201, title: "Send Money")
        noInternetDialog = false
        startLoading()
        /// TODO: first transaction free message Display
        
        /*        tracktransactionviewmodel.internetConnection.value = nil
         
         tracktransactionviewmodel.internetConnection.bind { [unowned self] in
         guard $0 != nil else {
         return
         }
         self.enableUserInteractions()
         self.dismissActivityIndicator(activityIndicator: self.activityIndicator)
         self.popUpMessage(value: 15)
         
         }
         
         
         tracktransactionviewmodel.fetchTransactionList(recipientId: "", recipientName: "", transactionType: "", startDate: "", endDate: "")
         tracktransactionviewmodel.transactionListObtained.bind{ [unowned self] in
         guard $0 != nil else {
         return
         }
         self.dismissActivityIndicator(activityIndicator: self.activityIndicator)
         self.enableUserInteractions()
         guard $0! else {
         self.popUpMessageError(value: 10, message: self.tracktransactionviewmodel.getErrorMessage())
         return
         }
         let appDelegate = UIApplication.shared.delegate as! AppDelegate
         let transactionStatus = appDelegate.firstTranscationStatusForProfileForm
         
         if self.tracktransactionviewmodel.getCount() == 0 && transactionStatus == true {
         self.popUpMessage(value: 9)
         }
         }*/
        
        RecipientListViewController.recipientStatus = false
        
        NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillShow), name: NSNotification.Name.UIKeyboardWillShow, object: nil)
        
        NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillHide), name: NSNotification.Name.UIKeyboardWillHide, object: nil)
        
        
        let tap: UITapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(clearKeyboard))
        view.addGestureRecognizer(tap)
        
        
        arrayOftextFields = [textFieldFirstName, textFieldMiddleName, textFieldLastName, textFieldCountry, textFieldState, textFieldDistrict, textFieldCity, textFieldAddress, textFieldRelation, textFieldMobile, textFieldEmail, textFieldTransferReason]
        
        for textField in arrayOftextFields {
            textField.delegate = self
        }
        
        pickerView.delegate = self
        pickerView.dataSource = self
        
        guard recipient == nil else {
            createNewRecipient = false
            recipientviewmodel = RecipientViewModel(recipient: recipient!)
            setUpAnotherLoginListener(genericviewmodel: recipientviewmodel)
            
            if let firstName = recipient?.firstName{
                textFieldFirstName.text = firstName
            }
            if let middleName = recipient?.middleName{
                textFieldMiddleName.text = middleName
            }
            if let lastName = recipient?.lastName{
                textFieldLastName.text = lastName
            }
            if let district = recipient?.district{
                textFieldDistrict.text = district
            }
            if let city = recipient?.city{
                textFieldCity.text = city
            }
            if let state = recipient?.state{
                textFieldState.text = state
            }
            if let address = recipient?.address{
                textFieldAddress.text = address
            }
            if let mobileNumber = recipient!.mobileNumber{
                textFieldMobile.text = mobileNumber
            }
            if let email = recipient?.email{
                textFieldEmail.text = email
            }
            if let relation = recipient?.relation{
                textFieldRelation.text = relation
            }
            if let reason = recipient?.reason{
                textFieldTransferReason.text = reason
            }
            
            recipientviewmodel.recipientConnectionTimeOut.value = nil
            /**
             connection timeout
             */
            recipientviewmodel.recipientConnectionTimeOut.bind { [unowned self] in
                guard $0 != nil else {
                    return
                }
                self.stopLoading()
                if RecipientFormViewController.recipientConnectionTimeOutConnectionCheck == 0{
                    RecipientFormViewController.recipientConnectionTimeOutConnectionCheck = RecipientFormViewController.recipientConnectionTimeOutConnectionCheck+1
                    self.popUpMessage(value: 27)
                    self.textFieldCountry.text = ""
                    self.textFieldCountry.leftViewMode = UITextFieldViewMode.never
                }
            }
            
            
            self.startLoading()
            internetCheck()
            
            self.setUpListener()
            self.cddListBindCall()
            fetchCountryList()
            recipientviewmodel.fetchCDDListFor(cddName: cddCode.Province.rawValue, param: ["countryId": (recipient?.countryId)!])
            if let stateId = recipient?.stateId {
                recipientviewmodel.fetchCDDListFor(cddName: cddCode.District.rawValue, param: [ "countryId": (recipient?.countryId)!, "provinceId": stateId])
            }
            
            fetchRelationList()
            fetchTransferReason()
            
            return
        }
        createNewRecipient = true
        recipientviewmodel = RecipientViewModel()
        recipientviewmodel.recipientConnectionTimeOut.value = nil
        /**
         connection timeout
         */
        recipientviewmodel.recipientConnectionTimeOut.bind { [unowned self] in
            guard $0 != nil else {
                return
            }
            self.stopLoading()
            if RecipientFormViewController.recipientConnectionTimeOutConnectionCheck == 0{
                RecipientFormViewController.recipientConnectionTimeOutConnectionCheck = RecipientFormViewController.recipientConnectionTimeOutConnectionCheck+1
                self.popUpMessage(value: 27)
                self.textFieldCountry.text = ""
                self.textFieldCountry.leftViewMode = UITextFieldViewMode.never
            }
        }
        setUpAnotherLoginListener(genericviewmodel: recipientviewmodel)
        internetCheck()
        self.setUpListener()
        cddListBindCall()
        fetchCountryList()
        fetchTransferReason()
        fetchRelationList()
    }
    
    /**
     Api request to fetch list of country
     */
    func fetchCountryList(){
        if recipientviewmodel.getCountryList().count == 0 {
            recipientviewmodel.fetchListOfCountry()
        }
    }
    
    /**
     Api request to fetch transfer reason
     */
    func fetchTransferReason() {
        if recipientviewmodel.getTransferReason().count == 0 {
            recipientviewmodel.fetchCDDListFor(cddName: cddCode.TransferReason.rawValue, param: ["": ""])
        }
    }
    
    /**
     Api request to fetch states
     */
    func fetchStates() {
        recipientviewmodel.fetchCDDListFor(cddName: cddCode.Province.rawValue, param: ["countryId": recipientviewmodel.getCountryId(index: selectedIndexFor["country"]!)])
        
    }
    
    /**
     Api request to fetch district
     */
    func fetchDistrict() {
        recipientviewmodel.fetchCDDListFor(cddName: cddCode.District.rawValue, param: [ "countryId": recipientviewmodel.getCountryId(index: selectedIndexFor["country"]!), "provinceId":  recipientviewmodel.getStateValue(index: selectedIndexFor["state"]!)])
        
    }
    
    /**
     Api request to fetch list of relation
     */
    func fetchRelationList() {
        if recipientviewmodel.getRelationList().count == 0 {
            recipientviewmodel.fetchCDDListFor(cddName: cddCode.Relation.rawValue, param: ["": ""])
        }
    }
    
    
    override func viewDidDisappear(_ animated: Bool) {
        RecipientListViewController.recipientStatus = false
    }
    /**
     Check internet connection
     */
    
    func internetCheck(){
        recipientviewmodel.internetConnection.bind { [unowned self] in
            
            guard $0 != nil else {
                return
            }
            if !self.noInternetDialog! {
                self.stopLoading()
                self.popUpMessage(value: 15)
                self.textFieldCountry.text = ""
                self.textFieldCountry.leftViewMode = UITextFieldViewMode.never
            }
            self.stopLoading()
            self.noInternetDialog = true
        }
        
    }
    
    /**
     bind call for recipient both create and update
     */
    
    func setUpListener() {
        recipientviewmodel.recipientCreatedUpdated.bind { [unowned self] in
            guard $0 != nil else {
                return
            }
            guard $0! else {
                //self.popUpMessageError(value: 10, message: self.recipientviewmodel.getErrorMessage())
                self.stopLoading()
                return
            }
            
            if self.createNewRecipient {
                self.newRecipient = self.recipientviewmodel.getCreatedRecipient()
                self.addRecipient()
            } else {
                self.recipientUpdateMessage()
            }
        }
        
        /**
         bind call for country list
         */
        recipientviewmodel.cddCountryListAvailable.bind { [weak self] in
            guard $0 != nil else {
                return
            }
            
            guard $0! else {
                // self?.popUpMessageError(value: 10, message: (self?.recipientviewmodel.getErrorMessage())!)
                return
            }
            
            if self?.recipient != nil {
                
                self?.pickerData = (self?.recipientviewmodel.getCountryNameList())!
                if let countryId = self?.recipient?.countryId{
                    let countryIndex = self?.recipientviewmodel.getIndex(id: countryId)
                    if let url = self?.recipientviewmodel.getCountryFlagUrlList()[countryIndex!]{
                        let url = url
                        self?.selectedIndexFor["country"] = countryIndex
                        self?.showCountryWithFlag(textField: (self?.textFieldCountry)!, url: url, index: countryIndex!)
                        
                    }
                }
            }
            self?.countryResult = true
            if (self?.createNewRecipient)! {
                self?.stopLoading()
            } else {
                self?.checkResult()
            }
            
        }
    }
    /**
     bind call for cddList
     - Transfer reason
     - relation
     - Province
     - District
     */
    func cddListBindCall(){
        recipientviewmodel.cddListAvailable.bind { [weak self] in
            guard $0 != nil else {
                return
            }
            guard $0!  != 0 else {
                // self?.popUpMessageError(value: 10, message: (self?.recipientviewmodel.getErrorMessage())!)
                return
            }
            self?.pickerDataRelation = (self?.recipientviewmodel.getRelationList())!
            self?.pickerDataReason = (self?.recipientviewmodel.getTransferReason())!
            
            
            if !(self?.createNewRecipient)! {
                switch $0!{
                case 1:
                    self?.pickerDataReason = (self?.recipientviewmodel.getTransferReason())!
                    
                    if self?.textFieldTransferReason.text  != ""{
                        if let reasonIndex = self?.pickerDataReason.index(of: (self?.textFieldTransferReason.text)!) {
                            self?.selectedIndexFor["transferReason"] = reasonIndex
                        }
                    }
                    self?.trasferReasonResult = true
                    
                case 2:
                    self?.pickerDataState = (self?.recipientviewmodel.getStateList())!
                    
                    if self?.textFieldState.text != "" {
                        if let stateIndex = self?.pickerDataState.index(of: (self?.textFieldState.text)!){
                            self?.selectedIndexFor["state"] = stateIndex
                        }
                    } else {
                        self?.selectedIndexFor["state"] = 0
                    }
                    self?.stateResult = true
                case 3:
                    self?.pickerDataDistrict = (self?.recipientviewmodel.getDistrictList())!
                    if self?.textFieldDistrict.text != ""{
                        if let districtIndex = self?.pickerDataDistrict.index(of: (self?.textFieldDistrict.text)!) {
                            self?.selectedIndexFor["district"] = districtIndex
                        }
                    } else {
                        self?.selectedIndexFor["district"] = 0
                    }
                    self?.districtResult = true
                case 4:
                    self?.pickerDataRelation = (self?.recipientviewmodel.getRelationList())!
                    self?.selectedIndexFor["relation"] = self?.pickerDataRelation.index(of: (self?.textFieldRelation.text)!)
                    self?.relationResult = true
                default:
                    return
                }
            }
            if (self?.createNewRecipient)! {
                self?.stopLoading()
            } else {
                self?.checkResult()
            }
            self?.recipientviewmodel.cddListAvailable.value = nil
        }
    }
    /**
     To check all result are available  or not after multiple api call..
     */
    func checkResult(){
        if  countryResult == true &&
            stateResult == true &&
            districtResult == true &&
            relationResult == true &&
            trasferReasonResult == true {
            stopLoading()
        }
        
    }
    
    /**
     Disable user interaction while fetching data from api
     */
    func startLoading(){
        disableUserInteractions()
        showActivityIndicator(activityIndicator: activityIndicator)
    }
    
    /**
     Enable user interaction while fetching data from api
     */
    func stopLoading(){
        self.dismissActivityIndicator(activityIndicator: self.activityIndicator)
        self.enableUserInteractions()
    }
    
    func addRecipient(){
        let alert = UIAlertController(title:"Add", message:"New Receiver profile added successfully" , preferredStyle: .actionSheet)
        present(alert, animated: true, completion: nil)
        let when = DispatchTime.now() + 2
        DispatchQueue.main.asyncAfter(deadline: when){
            alert.dismiss(animated: true, completion: nil)
            if let recipientId = self.self.recipientviewmodel.getCreatedRecipient().recipientId, let pageNumber = self.pageNumber{
                self.paginationDelegate.updateCurrentIndex(status: "add",recipient: self.createRecipientObject(recipientId:recipientId),pageNumber: pageNumber)
            }
            self.navigationController?.popViewController(animated: true)
        }
    }
    
    func recipientUpdateMessage(){
        let alert = UIAlertController(title:"Update", message:"Receiver profile updated successfully" , preferredStyle: .actionSheet)
        present(alert, animated: true, completion: nil)
        let when = DispatchTime.now() + 2
        DispatchQueue.main.asyncAfter(deadline: when){
            // your code with delay
            alert.dismiss(animated: true, completion: nil)
            if let recipientId = self.recipient?.recipientId , let pageNumber = self.pageNumber{
                self.paginationDelegate.updateCurrentIndex(status: "update",recipient: self.createRecipientObject(recipientId: (recipientId)),pageNumber: pageNumber)
            }
            self.navigationController?.popViewController(animated: true)
        }
    }
    
    @objc func keyboardWillShow(notification: NSNotification) {
        var userInfo = notification.userInfo!
        var keyboardFrame:CGRect = (userInfo[UIKeyboardFrameEndUserInfoKey] as! NSValue).cgRectValue
        keyboardFrame = self.view.convert(keyboardFrame, from: nil)
        
        var contentInset:UIEdgeInsets = self.scrollView.contentInset
        contentInset.bottom = keyboardFrame.size.height + 70
        self.scrollView.contentInset = contentInset
    }
    
    @objc  func keyboardWillHide(notification: NSNotification) {
        self.scrollView.contentInset = UIEdgeInsets.zero
        
    }
    
    //Doing Picker view button
    func pickUp(_ textField : UITextField){
        // UIPickerView
        self.pickerView = UIPickerView(frame:CGRect(x: 0, y: 0, width: self.view.frame.size.width, height: 216))
        self.pickerView.delegate = self
        self.pickerView.dataSource = self
        //self.pickerView.backgroundColor = UIColor.white
        textField.inputView = self.pickerView
        
        // ToolBar
        let toolBar = UIToolbar()
        toolBar.barStyle = .default
        toolBar.isTranslucent = true
        toolBar.tintColor = UIColor(red: 92/255, green: 216/255, blue: 255/255, alpha: 1)
        toolBar.sizeToFit()
        
        // Adding Button ToolBar
        let customButton = UIButton()
        var cancel = UIBarButtonItem()
        customButton.setTitle("Done", for: .normal)
        customButton.addTarget(self, action: #selector(doneClick), for: .touchUpInside)
        customButton.setTitleColor(UIColor(hex : 0xED1C24), for: .normal)
        customButton.frame = CGRect(x: 0, y: 0, width: 60, height: 30)
        cancel = UIBarButtonItem(title: "Cancel", style: .done, target: self, action: #selector(self.cancelClick))
        cancel.tintColor = UIColor.black
        
        let doneButton = UIBarButtonItem(customView: customButton)
        let spaceButton = UIBarButtonItem(barButtonSystemItem: .flexibleSpace, target: nil, action: nil)
        toolBar.setItems([cancel,spaceButton, doneButton], animated: false)
        toolBar.isUserInteractionEnabled = true
        textField.inputAccessoryView = toolBar
        
    }
    
    @objc func doneClick() {
        activeTextField?.resignFirstResponder()
        self.noInternetDialog = false
        if activeTextField == textFieldCountry {
            textFieldState.text = ""
            textFieldDistrict.text = ""
            pickerDataState.removeAll()
            pickerDataDistrict.removeAll()
            selectedIndexFor["state"] = 0
            selectedIndexFor["country"] = pickerIndex
            startLoading()
            if let index = selectedIndexFor["country"]{
                recipientviewmodel.setCountryId(referenceIndex: index)
            }
            if let index = selectedIndexFor["country"]{
                showCountryWithFlag(textField: activeTextField!, url: recipientviewmodel.getCountryFlagUrl(index: index), index: index)
            }
            if let index = selectedIndexFor["country"]{
                updateParameters["country"] = recipientviewmodel.getCountryIdList()[index]
            }
            fetchStates()
        } else if activeTextField == textFieldTransferReason {
            
            if pickerDataReason.count > 0 {
                if let transferReason = selectedIndexFor["transferReason"]{
                    recipientviewmodel.setTransferReason(referenceIndex: transferReason)
                }
                if let transferReasonIndex = selectedIndexFor["transferReason"]{
                    textFieldTransferReason.text = pickerDataReason[transferReasonIndex]
                }
            }
            if let transferReason = selectedIndexFor["transferReason"]{
                updateParameters["reason"] = recipientviewmodel.getTransferReasonValueList()[transferReason]
            }
            
        } else if activeTextField == textFieldRelation {
            if pickerDataRelation.count > 0 {
                if let relationIndex = selectedIndexFor["relation"]{
                    recipientviewmodel.setRelation(referenceIndex: relationIndex)
                    textFieldRelation.text = pickerDataRelation[relationIndex]
                }
            }
            if let relationIndex = selectedIndexFor["relation"]{
                updateParameters["relation"] = recipientviewmodel.getRelationValueList()[relationIndex]
            }
            
        } else if activeTextField == textFieldState {
            textFieldDistrict.text = ""
            pickerDataDistrict.removeAll()
            selectedIndexFor["district"] = 0
            
            if pickerDataState.count > 0{
                if let state = selectedIndexFor["state"]{
                    recipientviewmodel.setState(referenceIndex: state)
                    textFieldState.text = pickerDataState[state]
                }
            }
            startLoading()
            fetchDistrict()
            if let state = selectedIndexFor["state"]{
                updateParameters["state"] = recipientviewmodel.getStateValueList()[state]
            }
            
        } else if activeTextField == textFieldDistrict {
            if pickerDataDistrict.count > 0 {
                if let district = selectedIndexFor["district"]{
                    recipientviewmodel.setDistrict(referenceIndex: district)
                    textFieldDistrict.text = pickerDataDistrict[district]
                    updateParameters["district"] = recipientviewmodel.getDistrictValueList()[district]
                }
            }
        }
    }
    
    @objc func cancelClick(){
        activeTextField?.resignFirstResponder()
    }
    
    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
        if segue.identifier == "paymentMethod" {
            let paymentViewController = segue.destination as! PaymentMethodViewController
            paymentViewController.recipient = newRecipient
            
        }
    }
    
    
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning() 
    }
    
}

extension RecipientFormViewController: UITextFieldDelegate {
    
    func textFieldDidBeginEditing(_ textField: UITextField) {
        
        activeTextField = textField
        if textField == textFieldCountry ||
            textField == textFieldRelation ||
            textField == textFieldTransferReason ||
            textField == textFieldState ||
            textField == textFieldDistrict {
            
            if createNewRecipient {
                switch textField {
                case textFieldCountry:
                    pickerData = recipientviewmodel.getCountryNameList()
                case textFieldRelation:
                    pickerDataRelation = recipientviewmodel.getRelationList()
                case textFieldTransferReason:
                    pickerDataReason = recipientviewmodel.getTransferReason()
                case textFieldState:
                    pickerDataState = recipientviewmodel.getStateList()
                case textFieldDistrict:
                    pickerDataDistrict = recipientviewmodel.getDistrictList()
                    
                default:
                    return
                }
            }
            pickerView.reloadAllComponents()
            switch textField {
                
            case textFieldCountry:
                
                guard pickerData.count > 0 else {
                    textField.resignFirstResponder()
                    self.popUpMessageInfo(value: 16, title:  "Fetching data", message: "Please fill other fields while some data are being loaded")
                    return
                }
                
                
                if let index = selectedIndexFor["country"]{
                    pickUp(textField)
                    pickerView.selectRow(index, inComponent: 0, animated: true)
                    recipientviewmodel.setCountryId(referenceIndex: index)
                }
                
            case textFieldRelation:
                guard pickerDataRelation.count > 0 else {
                    textField.resignFirstResponder()
                    self.popUpMessageInfo(value: 16, title:  "Fetching data", message: "Please fill other fields while some data are being loaded")
                    return
                }
                pickUp(textField)
                if textFieldRelation.text != "" {
                    
                    if let index = pickerDataRelation.index(of: textFieldRelation.text!){
                        self.selectedIndexFor["relation"] = index
                        pickerView.selectRow(index, inComponent: 0, animated: true)
                    }
                }
                
            case textFieldTransferReason:
                guard pickerDataReason.count > 0 else {
                    textField.resignFirstResponder()
                    self.popUpMessageInfo(value: 16, title:  "Fetching data", message: "Please fill other fields while some data are being loaded")
                    return
                }
                pickUp(textField)
                if textFieldTransferReason.text != "" {
                    if let index = pickerDataReason.index(of: textFieldTransferReason.text!){
                        self.selectedIndexFor["transferReason"] = index
                        pickerView.selectRow(index, inComponent: 0, animated: true)
                    }
                }
            case textFieldState:
                guard pickerDataState.count > 0 else {
                    textField.resignFirstResponder()
                    self.popUpMessageInfo(value: 16, title:  "Fetching data", message: "Please fill other fields while some data are being loaded")
                    return
                }
                pickUp(textField)
                if textFieldState.text != ""{
                    if let index = pickerDataState.index(of: textFieldState.text!){
                        self.selectedIndexFor["state"] = index
                        pickerView.selectRow(index, inComponent: 0, animated: true)
                    }
                }
                
            case textFieldDistrict:
                guard pickerDataDistrict.count > 0 else {
                    textField.resignFirstResponder()
                    self.popUpMessageInfo(value: 16, title:  "Fetching data", message: "Please fill other fields while some data are being loaded")
                    return
                }
                pickUp(textField)
                if textFieldDistrict.text != ""{
                    if let index = pickerDataDistrict.index(of: textFieldDistrict.text!) {
                        self.selectedIndexFor["district"] = index
                        pickerView.selectRow(index, inComponent: 0, animated: true)
                    }
                }
                
            default:
                return
            }
            
            
        }
        
    }
    
    func textFieldShouldReturn(_ textField: UITextField) -> Bool {
        
        let index: Int = arrayOftextFields.index(of: textField)!
        guard index < (arrayOftextFields.count-1) else {
            textField.resignFirstResponder()
            return true
        }
        
        arrayOftextFields[index+1].becomeFirstResponder()
        return true
    }
    
    func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
        
        let newString = (textField.text! as NSString).replacingCharacters(in: range, with: string)
        
        switch textField {
        case textFieldFirstName:
            recipientviewmodel.updateFirstName(firstName: newString)
        case textFieldMiddleName:
            recipientviewmodel.updateMiddleName(middleName: newString)
        case textFieldLastName:
            recipientviewmodel.updateLastName(lastName: newString)
        case textFieldCity:
            recipientviewmodel.updateCity(city: newString)
        case textFieldAddress:
            recipientviewmodel.updateAddress(address: newString)
        case textFieldMobile:
            recipientviewmodel.updateMobile(mobile: newString)
        case textFieldEmail:
            recipientviewmodel.updateEmail(email: newString)
        default:
            return false
        }
        
        return true
    }
    
    func textFieldShouldBeginEditing(_ textField: UITextField) -> Bool {
        switch textField {
        case textFieldState:
            if textFieldCountry.text == "" {
                textFieldCountry.resignFirstResponder()
                textField.resignFirstResponder()
                self.popUpMessageInfo(value: 16, title:  "Select Country!", message: "Please select the country first.")
                return false
            } else {
                return true
            }
        case textFieldDistrict:
            if textFieldState.text == ""{
                textFieldCountry.resignFirstResponder()
                textFieldState.resignFirstResponder()
                
                self.popUpMessageInfo(value: 16, title:  "Select State/Province!", message: "Please select the State/Province first")
                return false
            } else {
                return true
            }
        default:
            return true
        }
    }
    
    func textFieldDidEndEditing(_ textField: UITextField) {
        if recipient != nil {
            switch textField {
            case textFieldFirstName:
                updateParameters["firstName"] = textField.text!
            case textFieldMiddleName:
                updateParameters["middleName"] = textField.text!
            case textFieldLastName:
                updateParameters["lastName"] = textField.text!
            case textFieldCountry:
                
                if let index = selectedIndexFor["country"]{
                    updateParameters["country"] = recipientviewmodel.getCountryId(index: index)
                }
            case textFieldState:
                if let index = selectedIndexFor["state"]{
                    updateParameters["state"] = recipientviewmodel.getStateValue(index: index)
                }
            case textFieldDistrict:
                if let index = selectedIndexFor["district"]{
                    updateParameters["district"] = recipientviewmodel.getDistrictValue(index: index)
                }
            case textFieldCity:
                updateParameters["city"] = textField.text!
            case textFieldAddress:
                updateParameters["address"] = textField.text!
            case textFieldRelation:
                if let index = selectedIndexFor["relation"]{
                    updateParameters["relation"] = recipientviewmodel.getRelationValue(index: index)
                }
            case textFieldMobile:
                updateParameters["mobileNumber"] = textField.text!
            case textFieldEmail:
                updateParameters["email"] = textField.text!
            case textFieldTransferReason:
                if let index = selectedIndexFor["transferReason"]{
                    updateParameters["transferReason"] = recipientviewmodel.getTransferReasonValue(index: index)
                }
            default:
                return
            }
        }
    }
    
}

extension RecipientFormViewController: UIPickerViewDataSource, UIPickerViewDelegate {
    
    func numberOfComponents(in pickerView: UIPickerView) -> Int {
        return 1
    }
    
    func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
        
        if activeTextField == textFieldCountry {
            return pickerData.count
        } else if activeTextField == textFieldState{
            return pickerDataState.count
        } else if activeTextField == textFieldDistrict{
            return pickerDataDistrict.count
        } else if activeTextField == textFieldRelation{
            return pickerDataRelation.count
        } else if activeTextField == textFieldTransferReason {
            return pickerDataReason.count
        } else {
            return 0
        }
    }
    
    func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
        
        if activeTextField == textFieldCountry {
            return pickerData[row]
        } else if activeTextField == textFieldState{
            return pickerDataState[row]
        } else if activeTextField == textFieldDistrict {
            return pickerDataDistrict[row]
        }else if activeTextField == textFieldRelation{
            return pickerDataRelation[row]
        } else if activeTextField == textFieldTransferReason{
            return pickerDataReason[row]
        } else {
            return ""
        }
    }
    
    func showCountryWithFlag(textField: UITextField, url: String, index: Int) {
        
        let paddingView = UIView(frame: CGRect(x: 0, y: 0, width: 50, height: 50))
        let imageView = UIImageView(frame: CGRect(x: 0, y: 0, width: 30, height: 30))
        
        imageView.center = paddingView.center
        
        if let flagUrl = URL(string: url) {
            
            imageView.sd_setImage(with: flagUrl, placeholderImage: nil, options: [.progressiveDownload,.scaleDownLargeImages], completed: nil)
        }
        paddingView.addSubview(imageView)
        
        textField.leftViewMode = UITextFieldViewMode.always
        textField.leftView = paddingView
        textField.text = pickerData[index]
    }
    
    
    func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
        
        if activeTextField == textFieldCountry {
            pickerIndex = row
        } else if activeTextField == textFieldState{
            selectedIndexFor["state"] = row
        } else if activeTextField == textFieldDistrict {
            selectedIndexFor["district"] = row
        } else if activeTextField == textFieldRelation{
            selectedIndexFor["relation"] = row
        } else if activeTextField == textFieldTransferReason{
            selectedIndexFor["transferReason"] = row
        }
        
    }
    
    func pickerView(_ pickerView: UIPickerView, rowHeightForComponent component: Int) -> CGFloat {
        return 60
    }
    
    func pickerView(_ pickerView: UIPickerView, viewForRow row: Int, forComponent component: Int, reusing view: UIView?) -> UIView {
        var myImageView: UIImageView?
        
        let myView = UIView(frame: CGRect(x: 0, y: 0, width: pickerView.bounds.width - 30, height: 60))
        
        let myLabel = UILabel(frame: CGRect(x: 60, y: 0, width: pickerView.bounds.width - 90, height: 60 ))
        
        
        
        myView.addSubview(myLabel)
        
        if activeTextField == textFieldCountry{
            myLabel.text = pickerData[row]
            myImageView = UIImageView(frame: CGRect(x: 0, y: 15, width: 40, height: 40))
            
            myImageView?.sd_setImage(with:URL(string: self.recipientviewmodel.getCountryFlagUrl(index: row)),  placeholderImage: nil, options: [.progressiveDownload,.scaleDownLargeImages], completed: nil)
            
            myView.addSubview(myImageView!)
        } else if activeTextField == textFieldState {
            myLabel.text = pickerDataState[row]
        } else if activeTextField == textFieldDistrict {
            myLabel.text = pickerDataDistrict[row]
        } else if activeTextField == textFieldRelation {
            myLabel.text = pickerDataRelation[row]
        } else if activeTextField == textFieldTransferReason{
            myLabel.text = pickerDataReason[row]
        }
        return myView
    }
}