//
//  VerifyIDNumberViewController.swift
//  GME Remit
//
//  Created by Shiran on 8/4/20.
//Copyright © 2020 Gobal Money Express Co. Ltd. All rights reserved.
//

import UIKit
import RxSwift
import RxCocoa

class VerifyIDNumberViewController: UIViewController {
    
    struct StringConstants {
        let residenceIdTitle = "residence_id_placeholder".localized()
        let residenceIdPlaceholder = "residence_id_placeholder".localized()
        let residenceIdError = "residence_id_error".localized()
        let headerTitle = "register_title_text".localized()
        let verifyBtnTitle = "verify_text".localized()
        let fullNameText = "full_name_text".localized()
        let fullNameTextPlaceholder = "full_name_placeholder_text".localized()
        let dobText = "dob_text".localized()
    }
    
    // MARK: Properties
    
    var presenter: VerifyIDNumberModuleInterface?
    var customerType: String = "FOREIGNER"
    var idType: String = "RESIDENCE"
    private var isValid = false {
        didSet {
//            verifyBttn.isEnabled = isValid
//            verifyBttn.backgroundColor = isValid ? .themeRed : .themeText
            verifyBttn.isEnabled = true
            verifyBttn.backgroundColor = isValid ? .themeRed : .themeRed
        }
    }
    
    private var validDic = [
      "id": false,
      "dob": false
    ]
     
    // MARK: IBOutlets
    @IBOutlet weak var idNumberTxtField: ValidationTextField!
    @IBOutlet weak var verifyBttn: UIButton!
    @IBOutlet weak var backButton: UIImageView! {
        didSet {
            let tapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(tappedView))
            backButton.addGestureRecognizer(tapGestureRecognizer)
            backButton.isUserInteractionEnabled = true
        }
    }
    @IBOutlet weak var headerTitle: UILabel!
    
    @IBOutlet weak var dobTxtField: ValidationTextField!
    @IBOutlet weak var fullNameTxtField: ValidationTextField!
    @IBOutlet weak var nationalitySwitch: UISegmentedControl!
    private let disposeBag = DisposeBag()
    // MARK: VC's Life cycle
    
    override func viewDidLoad() {
        super.viewDidLoad()
        self.setup()
    }
    
    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)
    }
    
    override func viewWillDisappear(_ animated: Bool) {
        super.viewWillDisappear(animated)
    }
    
    // MARK: IBActions
    @IBAction func verifyBttnClicked(_ sender: UIButton) {
        let idNumber = self.idNumberTxtField.text ?? ""
        let fullName = self.fullNameTxtField.text ?? ""
        let dob = self.dobTxtField.text ?? ""
        self.presenter?.verifyIdNumber(id: idNumber, type: self.idType, fullName: fullName, dob: dob)
    }
    
    // MARK: Other Functions
    
    private func setup() {
        configureLanguage()
        verifyBttn.layer.cornerRadius = 6
        idNumberTxtField.addTarget(self, action: #selector(editingChanged(_:)), for: .editingChanged)
        
        dobTxtField.useAsDropDown(items: nil)
        setDatePicker(textField: dobTxtField, useMaximum: true)
        
        dobTxtField.validCondition = { $0.count > 0}
        
        dobTxtField.addTarget(self, action: #selector(editingChanged(_:)), for: .editingChanged)
        
        
    }
    
    private func setDatePicker(textField: UITextField, useMaximum: Bool = false, useMinimum: Bool = false) {
        let datePicker = UIDatePicker()
        datePicker.datePickerMode = .date
        if #available(iOS 13.4, *) {
            datePicker.preferredDatePickerStyle = .wheels
        }
        if useMaximum {
            datePicker.maximumDate = Date()
        }

        if useMinimum {
            datePicker.minimumDate = Date()
        }

        textField.inputView = datePicker

        datePicker.rx.controlEvent(.valueChanged).withLatestFrom(datePicker.rx.date) {$1}
        .asDriverOnErrorJustComplete()
        .drive(onNext: {
            let dateFormatter = DateFormatter()
            dateFormatter.dateFormat = "yyyy-MM-dd"
            textField.text = dateFormatter.string(from: $0)
            textField.sendActions(for: .editingChanged)
        }).disposed(by: disposeBag)
    }
    
    @objc private func editingChanged(_ textField: ValidationTextField) {
      switch textField {
      case idNumberTxtField:
        textField.removeNonASCII()
        idNumberTxtField.filterForUserIDFormat()
        validDic["id"] = idNumberTxtField.isValid
      case dobTxtField:
        validDic["dob"] = dobTxtField.isValid
          dobTxtField.errorMessage = "empty_field_error_text".localized()
      default: ()
      }
      isValid = validDic.allSatisfy { $0.value }
    }
    
    @objc func tappedView() {
        self.navigationController?.popViewController(animated: true)
    }
    
    func configureLanguage() {
        idNumberTxtField.titleText = StringConstants().residenceIdTitle
        idNumberTxtField.placeholder = StringConstants().residenceIdPlaceholder
        idNumberTxtField.errorMessage = StringConstants().residenceIdError
        idNumberTxtField.validCondition = { !$0.isEmpty}
        dobTxtField.placeholder = StringConstants().dobText
        dobTxtField.titleText = StringConstants().dobText
        fullNameTxtField.placeholder = StringConstants().fullNameTextPlaceholder
        fullNameTxtField.titleText = StringConstants().fullNameText
        headerTitle.text = StringConstants().headerTitle
        verifyBttn.setTitle(StringConstants().verifyBtnTitle, for: .normal)
        
    }
    
    @IBAction func nationalitySwitchButtonClicked(_ sender: UISegmentedControl) {
        switch nationalitySwitch.selectedSegmentIndex {
        case 0:
            idNumberTxtField.titleText = StringConstants().residenceIdTitle
            idNumberTxtField.placeholder = StringConstants().residenceIdPlaceholder
            idNumberTxtField.errorMessage = StringConstants().residenceIdError
            self.customerType = "FOREIGNER"
            self.idType = "RESIDENCE"
        case 1:
            idNumberTxtField.titleText = "scan_driver_license_text".localized()
            idNumberTxtField.placeholder = "driver_license_hint_text".localized()
            idNumberTxtField.errorMessage = "invalid_driver_license_text".localized()
            self.customerType = "RESIDENT"
            self.idType = "DRIVING_LICENCE"
        default:
            idNumberTxtField.titleText = StringConstants().residenceIdTitle
            idNumberTxtField.placeholder = StringConstants().residenceIdPlaceholder
            idNumberTxtField.errorMessage = StringConstants().residenceIdError
            self.customerType = "FOREIGNER"
            self.idType = "RESIDENCE"
        }
    }

}

// MARK: VerifyIDNumberViewInterface
extension VerifyIDNumberViewController: VerifyIDNumberViewInterface {
    func showLoading() {
        self.showProgressHud()
    }
    
    func hideLoading() {
        self.hideProgressHud()
    }
    
    func show(error: String) {
        self.alert(type: .error, message: error)
    }
    
    func show(message: String) {
        guard let id = self.idNumberTxtField.text else {
            return
        }
        GMEDB.shared.user.set(id, .userId)
        self.presenter?.newUserRegister(customerType: self.customerType, fullName: self.fullNameTxtField.text ?? "", Dob: self.dobTxtField.text ?? "")
    }
}