//
//  AlertsSeismicNotificationTableViewCell.swift
//  Earthquake Network
//
//  Created by Busi Andrea on 05/10/2020.
//  Copyright © 2020 Earthquake Network. All rights reserved.
//

import UIKit
import MapKit
import Shogun

class AlertsSeismicNotificationExpandedTableViewCell: EQNBaseTableViewCell, MKMapViewDelegate {

    typealias DefaultCompletion = () -> Void
    
    @objc var notification: EQNRealtimePushNotification? {
        didSet {
            updateUI()
        }
    }
    @objc var onTapOpenTwitter: DefaultCompletion?
    @objc var onTapRateApp: DefaultCompletion?
    @objc var onTapClose: DefaultCompletion?
    @objc var onTapShareApp: DefaultCompletion?
    
    
    // MARK: - Internal
    
    @IBOutlet weak var notificationTitleLabel: UILabel!
    @IBOutlet weak var notificationDescriptionLabel: UILabel!
    @IBOutlet weak var notificationIntensityLabel: UILabel!
    @IBOutlet weak var waveTimeLabel: UILabel!
    @IBOutlet weak var mapView: MKMapView! {
        didSet {
            mapView.delegate = self
            mapView.isScrollEnabled = false
            mapView.isZoomEnabled = false
            mapView.register(EQNCustomAnnotationView.self, forAnnotationViewWithReuseIdentifier: EQNCustomAnnotationView.SingleLineIdentifier)
        }
    }
    @IBOutlet private weak var shareButton: UIButton!
    @IBOutlet private weak var rateAppButton: UIButton!
    @IBOutlet private weak var viewOnTwitterButton: UIButton!
    @IBOutlet private weak var closeButton: UIButton!
    @IBOutlet private weak var descriptionLabel: UILabel!
    private var impactTimestamp: Date?
    private var countdownTimer: Timer?
    
    // MARK: - View Lifecycle
    
    override func awakeFromNib() {
        super.awakeFromNib()
        
        localizeUI()
        setUI()
    }
    
    // MARK: - Private
    
    private func localizeUI() {
        shareButton.setLocalizedTitle(key: "main_share_app")
        rateAppButton.setLocalizedTitle(key: "main_vote")
        viewOnTwitterButton.setLocalizedTitle(key: "main_twitter_see")
        closeButton.setLocalizedTitle(key: "official_close")
        descriptionLabel.text = NSLocalizedString("map_smartphone_magnitude", comment: "")
    }
    
    private func setUI() {
        shareButton.layer.borderColor = AppTheme.Colors.darkGray.cgColor
        rateAppButton.layer.borderColor = AppTheme.Colors.darkGray.cgColor
        viewOnTwitterButton.layer.borderColor = AppTheme.Colors.darkGray.cgColor
        closeButton.layer.borderColor = AppTheme.Colors.darkGray.cgColor
    }
    
    private func updateUI() {
        // clearn any other previous notifications
        notificationTitleLabel.text = ""
        notificationDescriptionLabel.text = ""
        mapView.removeAnnotations(mapView.annotations)
        
        guard let notification = notification else { return }
        
        containerView.backgroundColor = backgroundColor(for: notification.relativeIntensity())
        notificationTitleLabel.text = notification.title
        notificationIntensityLabel.text = notification.displayBody
        notificationIntensityLabel.textColor = notification.relativeIntensityColor
        
        if  let date = notification.dateTime {
            
            let distance = EQNUser.default().lastPosition?.distance(from: notification.coordinate) ?? 0.0
            let distanceRound = Int(round(distance / 1_000))
            let difference = Int(NSDate().timeIntervalSince(date) / 60.0)
            
            notificationDescriptionLabel.text = ""
            + NSLocalizedString("official_card_distance", comment: "") + " \(distanceRound) km"
            + " - " + EQNUtility.formattedString(forTimeDifference: difference)
            + "\n" + String(format: NSLocalizedString("map_number", comment: ""), "\(notification.counter)")
        }
        
        let span = MKCoordinateSpan(latitudeDelta: 10.5, longitudeDelta: 10.5)
        let region = MKCoordinateRegion(center: notification.coordinate.coordinate, span: span)
        
        mapView.setCenter(notification.coordinate.coordinate, animated: false)
        mapView.setRegion(region, animated: true)
        
        let annotation = EQNMapAnnotationPastquake(title: "", coordinate: notification.coordinate.coordinate, intensity: notification.intensity)
        mapView.addAnnotation(annotation)
    }
    
    func mapView(_ mapView: MKMapView, viewFor annotation: MKAnnotation) -> MKAnnotationView? {
        guard let annotation = annotation as? EQNMapAnnotationPastquake else {
            return nil
        }
        
        let annotationView = mapView.dequeueReusableAnnotationView(withIdentifier: EQNCustomAnnotationView.SingleLineIdentifier, for: annotation) as! EQNCustomAnnotationView
        annotationView.image = annotation.image
        annotationView.title = annotation.title
        return annotationView
    }

    // MARK: - Actions
    
    @IBAction private func shareAppTapped(_ sender: UIButton) {
        onTapShareApp?()
    }
    
    @IBAction private func rateAppTapped(_ sender: UIButton) {
        onTapRateApp?()
    }

    @IBAction private func viewInTwitterTapped(_ sender: UIButton) {
        onTapOpenTwitter?()
    }
    
    @IBAction private func closeTapped(_ sender: UIButton) {
        onTapClose?()
    }
    
    // MARK: - Helpers
    
    private func backgroundColor(for intensity: Double) -> UIColor {
        switch intensity {
        case _ where intensity < 0.004:
            return UIColor(named: "Gray (card background)")!
        case _ where intensity < 0.30:
            return UIColor(named: "Green (card background)")!
        case _ where intensity < 0.70:
            return UIColor(named: "Yellow (card background)")!
        default:
            return UIColor(named: "Red (card background)")!
        }
    }
}