//
//  KycForm3ViewController.swift
//  GMERemittance
//
//  Created by gme_2 on 12/09/2018.
//Copyright © 2018 Gobal Money Express Co. Ltd. All rights reserved.
//

import UIKit
import XLPagerTabStrip
import PMAlertController

enum PictureType: Int {
    case selfie
    case front
    case back
    case passbook
    case passport
}

struct KycForm3FieldKeys {
    static let selfieImage = "bank"
    static let frontImage = "accountNumber"
    static let backImage = "verificationId"
    static let passbookImage = "verificationIdNumber"
    static let passportImage = "expiryDate"
}

class KycForm3Model {
    var selfieImage: UIImage?
    var frontImage: UIImage?
    var backImage: UIImage?
    var passbookImage: UIImage?
    var passportImage: UIImage?
}

class KycForm3ViewController: UIViewController {
    
    struct Constants {
        static let stateRedColor = UIColor.init(hex: "#EC1C24")
        static let clearColor = UIColor.clear
        static let errorBorderSize = AppConstants.errorBorderWidth
    }
    
    // MARK: IBOutlets
    
    @IBOutlet weak var selfieButton: UIButton!
    @IBOutlet weak var frontButton: UIButton!
    @IBOutlet weak var backButton: UIButton!
    @IBOutlet weak var passbook: UIButton!
    @IBOutlet weak var passport: UIButton!
    
    // views
    
    @IBOutlet weak var selfieView: UIView!
    @IBOutlet weak var frontImageView: UIView!
    @IBOutlet weak var backImageView: UIView!
    @IBOutlet weak var passBookView: UIView!
    @IBOutlet weak var passportView: UIView!
    
    
    // MARK: Properties
    
    let kycForm3Model = KycForm3Model()
    var presenter: KycForm3ModuleInterface?
    var delegate: KYCForm3Delegate?
    
    var multiMediaManager: MultiMediaManager?
    var imageCropper: ImageCroper?
    var currentPictureType: PictureType?
    
    var selectedSelfieImage = false
    var selectedFrontImage = false
    var selectedBackImage = false
    var selectedPassbookImage = false
    var selectedPassPortImage = false
    
    var errorViewsDict: [String: UIView] = [:]

    // MARK: VC's Life cycle
    override func viewDidLoad() {
        super.viewDidLoad()
        self.setup()
    }
    
    // MARK: IBActions
    
    
    // sample actions
    
    @IBAction func selfie(_ sender: UIButton) {
        showSample(type: .selfie, titleString: "Picture with National/Alien Reg ID Front")
    }
    
    @IBAction func front(_ sender: UIButton) {
        showSample(type: .front, titleString: "National/ Alien Reg ID Front")
    }
    
    
    @IBAction func back(_ sender: UIButton) {
        showSample(type: .back, titleString: "National/ Alien Reg ID Back")
    }
    
    @IBAction func passbook(_ sender: UIButton) {

        showSample(type: .passbook, titleString: "Passbook")
    }
    
    @IBAction func passport(_ sender: UIButton) {
        showSample(type: .passport, titleString: "Passport")
    }
    
    
    // camera actions
    
    @IBAction func selfieCamera(_ sender: UIButton) {
        self.currentPictureType = .selfie
        self.showPicker()
    }
    
    @IBAction func frontCamera(_ sender: UIButton) {
         self.currentPictureType = .front
        print("front")
        self.showPicker()
    }
    
    @IBAction func backCamera(_ sender: UIButton) {
        self.currentPictureType = .back
        print("back")
        self.showPicker()
    }
    
    @IBAction func passbookCamera(_ sender: UIButton) {
        self.currentPictureType = .passbook
        print("passbook")
        self.showPicker()
    }
    
    @IBAction func passportCamera(_ sender: UIButton) {
        self.currentPictureType = .passport
        print("passport")
        self.showPicker()
    }
    
    
    // submit action
    
    
    @IBAction func submit(_ sender: UIButton) {
        self.delegate?.submit(model: self.kycForm3Model)
    }
    
    

    // MARK: Other Functions
    
    private func setup() {
        // all setup should be done here
       self.multiMediaManager = MultiMediaManager(presenter: self)
        multiMediaManager?.delegate = self
        self.imageCropper = ImageCroper(presentingViewController: self)
        imageCropper?.delegate = self
        setupErrorViews()
    }
    
    private func setupErrorViews() {
        self.errorViewsDict =
        [
            KycForm3FieldKeys.selfieImage: self.selfieView,
            KycForm3FieldKeys.frontImage: self.frontImageView,
            KycForm3FieldKeys.backImage: self.backImageView,
            KycForm3FieldKeys.passbookImage: self.passBookView,
            KycForm3FieldKeys.passportImage: self.passportView,
        ]
    }
    
    private func showPicker() {
        multiMediaManager?.openPicker(mode: UIImagePickerControllerCameraCaptureMode.photo)
    }
    
    func showSample(type: PictureType, titleString: String) {
        let image: UIImage?
        switch type {
        case .selfie:
            image = #imageLiteral(resourceName: "sampleSelfie")
        case .front:
            image = #imageLiteral(resourceName: "sampleFront")
        case .back:
            image = #imageLiteral(resourceName: "sampleBack")
        case .passbook:
            image = #imageLiteral(resourceName: "sampleBack")
        case .passport:
            image = #imageLiteral(resourceName: "sampleBack")
        }
        // show alert
        let alertVC = PMAlertController(title: "", description: "", image: image, style: .alert)
        alertVC.alertView.layer.cornerRadius = 10
        let action = PMAlertAction(title: "OK", style: .cancel)
        alertVC.addAction(action)
        self.present(alertVC, animated: true, completion: nil)
    }
}

// MARK: KycForm3ViewInterface
extension KycForm3ViewController: KycForm3ViewInterface {
    
}

extension KycForm3ViewController: IndicatorInfoProvider {
    func indicatorInfo(for pagerTabStripController: PagerTabStripViewController) -> IndicatorInfo {
        return IndicatorInfo.init(title: "Upload")
    }
}

extension KycForm3ViewController: MultimediaPresenterProtocol {
    func presenting() -> UIViewController {
        return self
    }
}

extension KycForm3ViewController: MultiMediaManagerDelegate {
    func didFinishPickingWithImage(image: UIImage) {
        self.imageCropper?.cropImage(image: image)
    }
    
    func didFinishPickingWithError(error: String) {
        self.alert(message: error)
    }
    
    func hideBorder(view: UIView) {
        view.layer.borderWidth = 0
        view.layer.addShadow(with: Constants.clearColor)
    }
}

extension KycForm3ViewController: ImageCropperDelegate {
    func didCropWith(image: UIImage) {
        guard let type = self.currentPictureType else {return; print("returning")}
        switch type {
      case .selfie:
            self.selfieButton.setImage(image, for: .normal)
            self.selectedSelfieImage = true
            self.kycForm3Model.selfieImage = image
            hideBorder(view: selfieView)
        case .front:
            self.frontButton.setImage(image, for: .normal)
            self.selectedFrontImage = true
            self.kycForm3Model.frontImage = image
            hideBorder(view: frontImageView)
        case .back:
            self.backButton.setImage(image, for: .normal)
            self.selectedBackImage = true
            self.kycForm3Model.backImage = image
            hideBorder(view: backImageView)
        case .passbook:
            self.passbook.setImage(image, for: .normal)
            self.selectedPassbookImage = true
            self.kycForm3Model.passbookImage = image
            hideBorder(view: passBookView)
        case .passport:
            self.passport.setImage(image, for: .normal)
            self.selectedPassPortImage = true
            self.kycForm3Model.passportImage = image
            hideBorder(view: passportView)
        }
    }
    func didFailedCropWith(error: Error) {
        self.alert(message: error.localizedDescription)
    }
}

extension KycForm3ViewController {
    
    private func showBorder(view : UIView?) {
        guard let _view = view else {return}
        _view.layer.borderColor = Constants.stateRedColor.cgColor
        _view.layer.borderWidth = Constants.errorBorderSize
        _view.layer.addShadow(with: Constants.stateRedColor)
    }
    
    func show(result: (doesNotSucks: Bool, errorsDick: [String : String])) {
        var position = 11
        if result.doesNotSucks { // if isValid
            
        }else {
            result.errorsDick.forEach({
//                self.show(error: $0.value, label: label)
                let view = errorViewsDict[$0.key]
                self.showBorder(view: view)
                let tag = (view?.tag ?? position)
                position = tag < position ? tag : position
//                if let topMostView = self.views.filter({
//                    $0.tag == tag
//                }).first {
//                    // Todo
//                    // scroll to view here
//                }
            })
        }
    }
}