LONDON-IOS/GMERemittance/Module/AddReciepient/User Interface/View/AddReciepientViewController.swift

//
//  AddReciepientViewController.swift
//  GMERemittance
//
//  Created by gme_2 on 26/08/2018.
//Copyright © 2018 Gobal Money Express Co. Ltd. All rights reserved.
//

import UIKit

class AddReciepientViewController: UIViewController {
    
    // MARK: IBOutlets
    @IBOutlet weak var firstNameTextField: UITextField!
    @IBOutlet weak var middleNameTextField: UITextField!
    @IBOutlet weak var lastNameTextField: UITextField!
    @IBOutlet weak var countryTextField: UITextField!
    @IBOutlet weak var stateProvinceTextField: UITextField!
    @IBOutlet weak var districtTextField: UITextField!
    @IBOutlet weak var addressTextField: UITextField!
    @IBOutlet weak var relationTextField: UITextField!
    @IBOutlet weak var mobileTextField: UITextField!
    @IBOutlet weak var emailTextField: UITextField!
    @IBOutlet weak var transferReasonTextField: UITextField!
    @IBOutlet weak var saveButton: UIButton!
    @IBOutlet weak var provienceStackView: UIStackView!
    @IBOutlet weak var districtStackView: UIStackView!
    
    // MARK: Properties
    var presenter: AddReciepientModuleInterface?
    var countries: [SendMoneyCountryViewModel]?
    var transferReasons: [SendMoneyTransferReasonViewModel]?
    var relations: [SendMoneyRelationViewModel]?
    var reciepient: ReceipientViewModel?
    
    var selectedCountry: SendMoneyCountryViewModel? {
        didSet {
            self.countryTextField.text = selectedCountry?.name
            let shouldShowProvienceField = (selectedCountry?.proviencesRequired ?? "" ) == "true"
            self.provienceStackView.isHidden = !shouldShowProvienceField
            self.districtStackView.isHidden = !shouldShowProvienceField
            self.reciepient?.countryId = self.selectedCountry?.id
        }
    }
    
    var selectedProvience: SendMoneyProvienceViewModel? {
        didSet {
            self.stateProvinceTextField.text = selectedProvience?.name
            self.reciepient?.stateId = self.selectedProvience?.id
        }
    }
    
    var selectedDistrict: SendMoneyDistrictViewModel? {
        didSet {
            self.districtTextField.text = selectedDistrict?.name
            self.reciepient?.districtId = self.selectedDistrict?.id
        }
    }
    
    var selectedRelation: SendMoneyRelationViewModel? {
        didSet {
            self.relationTextField.text = selectedRelation?.title
            self.reciepient?.relationId = self.selectedRelation?.id
        }
    }
    
    var selectedTransferReason: SendMoneyTransferReasonViewModel? {
        didSet {
            self.transferReasonTextField.text = selectedTransferReason?.title
            self.reciepient?.reasonId = selectedTransferReason?.id
        }
    }
    
    
    // MARK: VC's Life cycle
    
    override func viewDidLoad() {
        super.viewDidLoad()
        self.setup()
        self.setupDelegates()
        self.setupTargets()
        self.reciepient = ReceipientViewModel()
        self.presenter?.viewIsReady()
    }
    
    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)
        self.navigationItem.title = "Add Receipient"
    }
    
    override func viewWillDisappear(_ animated: Bool) {
        super.viewWillAppear(animated)
        self.navigationItem.title = ""
    }
    
    // MARK: IBActions
    
    @IBAction func save(_ sender: UIButton) {
        if let reciepient = self.reciepient {
            self.presenter?.save(model: reciepient)
        }
    }
    // MARK: Other Functions
    
    private func setup() {
        // all setup should be done here
        self.setupNavigation()
        self.configureView()
    }
    
    private func configureView() {
        self.provienceStackView.isHidden = true
        self.districtStackView.isHidden = true
    }
    
    private func setupDelegates() {
        self.countryTextField.delegate = self
        self.stateProvinceTextField.delegate = self
        self.districtTextField.delegate = self
        self.relationTextField.delegate = self
        self.transferReasonTextField.delegate = self
    }
    
    private func setupTargets() {
        [firstNameTextField, middleNameTextField, lastNameTextField, countryTextField, stateProvinceTextField, districtTextField, addressTextField, relationTextField, mobileTextField, emailTextField, transferReasonTextField].forEach({
                $0.addTarget(self, action: #selector(self.textFieldChanged(sender:)), for: UIControlEvents.editingChanged)
        })
    }
    
    @objc private func textFieldChanged(sender: UITextField) {
        switch sender {
        case firstNameTextField:
            self.reciepient?.firstName = firstNameTextField.text!
        case middleNameTextField:
            self.reciepient?.middleName = middleNameTextField.text!
        case lastNameTextField:
            self.reciepient?.lastName = lastNameTextField.text!
        case addressTextField:
            self.reciepient?.address = addressTextField.text!
        case mobileTextField:
            self.reciepient?.mobileNumber = mobileTextField.text!
        case emailTextField:
            self.reciepient?.email = emailTextField.text!
        default:
            break
        }
    }
    
    private func setupNavigation() {
        self.navigationItem.backBarButtonItem?.image =
            #imageLiteral(resourceName: "backIconBlack")
        self.navigationController?.navigationBar.tintColor = UIColor.black
    }
    
    private func showCountryPickerview() {
        let viewcontroller = UIStoryboard.init(name: "CountryPicker", bundle: nil).instantiateViewController(withIdentifier: "CountryPickerViewController") as! CountryPickerViewController
        viewcontroller.data = self.countries ?? []
        viewcontroller.doneAction = self.countrySelected
        viewcontroller.defaultSelectedData = [self.selectedCountry]
        viewcontroller.type = PickerTitle.country
        self.present(viewcontroller, animated: true, completion: nil)
    }
    
    private func getPickerViewController()-> ItemsPickerViewController  {
       return UIStoryboard.init(name: "ItemsPicker", bundle: nil).instantiateViewController(withIdentifier: "ItemsPickerViewController") as! ItemsPickerViewController
    }
    
    private func showProviencePickerview() {
        let viewcontroller = self.getPickerViewController()
        let proviences = self.selectedCountry?.proviences ?? []
        let names = proviences.compactMap({$0.name})
        viewcontroller.data = names
        viewcontroller.type = PickerTitle.state
        viewcontroller.doneAction = self.provienceSelected
        viewcontroller.defaultSelectedData = [self.selectedProvience?.name ?? ""]
        self.present(viewcontroller, animated: true, completion: nil)
    }
    
    private func showDistrictPickerview() {
        let viewcontroller = self.getPickerViewController()
        let districts = self.selectedProvience?.districts ?? []
        let names = districts.compactMap({$0.name})
        viewcontroller.data = names
        viewcontroller.type = PickerTitle.district
        viewcontroller.doneAction = self.districtSelected
        viewcontroller.defaultSelectedData = [self.selectedDistrict?.name ?? ""]
        self.present(viewcontroller, animated: true, completion: nil)
    }

    private func showRelationPickerView() {
        let viewcontroller = self.getPickerViewController()
        let relations = self.relations ?? []
        let names = relations.compactMap({$0.title})
        viewcontroller.data = names
        viewcontroller.type = PickerTitle.relation
        viewcontroller.doneAction = self.relationSelected
        viewcontroller.defaultSelectedData = [self.selectedRelation?.title ?? ""]
        self.present(viewcontroller, animated: true, completion: nil)
    }
    
    private func showTransferReasonPickerView() {
        let viewcontroller = self.getPickerViewController()
        let transferReasons = self.transferReasons ?? []
        let names = transferReasons.compactMap({$0.title})
        viewcontroller.data = names
        viewcontroller.type = PickerTitle.transferReasons
        viewcontroller.doneAction = self.transferReasonSelected
        viewcontroller.defaultSelectedData = [self.selectedTransferReason?.title ?? ""]
        self.present(viewcontroller, animated: true, completion: nil)
    }
    
    func transferReasonSelected(reasons: [String]) {
        let _reason = self.transferReasons?.filter({($0.title ?? "") == (reasons.first ?? "") }).first
        self.selectedTransferReason = _reason
    }
    
    func relationSelected(relations: [String]) {
        let _relations = self.relations?.filter({($0.title ?? "") == (relations.first ?? "") }).first
        self.selectedRelation = _relations
    }
    
    func districtSelected(district: [String]) {
        let _district = (self.selectedProvience?.districts ?? []).filter({
            ( $0.name ?? "" ) == ( district.first ?? "" )
        }).first
        self.selectedDistrict = _district
        
    }
    
    func provienceSelected(provience: [String]) {
        let _provience = (self.selectedCountry?.proviences ?? []).filter({
            ($0.name ?? "") == (provience.first ?? "")
        })
        self.selectedProvience = _provience.first
    }
    
    func countrySelected(models: [SendMoneyCountryViewModel]) {
        self.selectedCountry = models.first
    }
    
    func showLoading() {
        self.showProgressHud()
    }
    
    func hideLoading() {
        self.hideProgressHud()
    }
    
    func show(error: String) {
        self.alert(message: error)
    }
}

// MARK: AddReciepientViewInterface
extension AddReciepientViewController: AddReciepientViewInterface {
    func show(countries: [SendMoneyCountryViewModel]) {
        self.countries = countries
    }
    
    func show(transferReasons: [SendMoneyTransferReasonViewModel]) {
        self.transferReasons = transferReasons
    }
    
    func show(relations: [SendMoneyRelationViewModel]) {
        self.relations = relations
    }
}


extension AddReciepientViewController: UITextFieldDelegate {
    func textFieldShouldBeginEditing(_ textField: UITextField) -> Bool {
        switch textField {
        case countryTextField:
            showCountryPickerview()
            return false
        case stateProvinceTextField:
            self.showProviencePickerview()
            return false
        case districtTextField:
            self.showDistrictPickerview()
            return false
        case relationTextField:
            self.showRelationPickerView()
            return false
        case transferReasonTextField:
            self.showTransferReasonPickerView()
            return false
        default:
            return true
        }
    }
}