//
//  PopupNotificationController.swift
//  Malinka
//
//  Created by user on 17.11.2022.
//  Copyright © 2022 NUT.Tech. All rights reserved.
//

import UIKit

final class PopupNotificationController: UIViewController {
    
    private enum Constants {
        static let shadowColor = UIColor.black.withAlphaComponent(0.70)
        static let titleFontSize: CGFloat = 28
        static let descriptionFontSize: CGFloat = 16
        static let buttonFontSize: CGFloat = 14
    }
    
    private enum Geometry {
        static let dialogViewRadius: CGFloat = 20
        static let dialogViewWidth: CGFloat = 343
        static let dialogViewHeight: CGFloat = 253
        static let separatorViewHeight: CGFloat = 3
        static let separatorViewWidth: CGFloat = 49
        static let separatorViewTop: CGFloat = 12
        static let buttonRadius: CGFloat = 10
        static let buttonHeight: CGFloat = 48
        static let buttonBottom: CGFloat = 43
        static let titleIconTop: CGFloat = 24
        static let descriptionLabelMargin: CGFloat = 34
        static let commonMargin: CGFloat = 12
        static let iconSize: CGFloat = 24
        static let titleLeftMargin: CGFloat = 10
    }
    
    private lazy var titleLabel: UILabel = {
        let label = UILabel()
        label.numberOfLines = 0
        label.translatesAutoresizingMaskIntoConstraints = false
        label.font = FontFamily.GolosUI.bold.font(size: Constants.titleFontSize)
        label.textColor = Asset.textCoal.color
        return label
    }()
    
    private lazy var descriptionLabel: UILabel = {
        let label = UILabel()
        label.numberOfLines = 0
        label.translatesAutoresizingMaskIntoConstraints = false
        label.font = FontFamily.GolosUI.regular.font(size: Constants.descriptionFontSize)
        label.textColor = Asset.textCoal.color
        return label
    }()
    
    private lazy var dialogView: UIView = {
        let view = UIView()
        view.translatesAutoresizingMaskIntoConstraints = false
        view.clipsToBounds = true
        view.backgroundColor = Asset.snow.color
        view.layer.cornerRadius = Geometry.dialogViewRadius
        return view
    }()
    
    private lazy var separatorView: UIView = {
        let view = UIView()
        view.translatesAutoresizingMaskIntoConstraints = false
        view.clipsToBounds = true
        view.backgroundColor = Asset.lightGray.color
        return view
    }()
    
    private lazy var titleIcon: UIImageView = {
        let icon = UIImageView()
        icon.translatesAutoresizingMaskIntoConstraints = false
        return icon
    }()
    
    private lazy var button: UIButton = {
        let button = UIButton()
        button.translatesAutoresizingMaskIntoConstraints = false
        button.clipsToBounds = true
        button.layer.cornerRadius = Geometry.buttonRadius
        button.titleLabel?.font = FontFamily.GolosUI.regular.font(size: Constants.buttonFontSize)
        button.backgroundColor = Asset.deepWater.color
        button.setTitleColor(Asset.textSnow.color, for: .normal)
        button.addTarget(self, action: #selector(self.close), for: .touchDown)
        return button
    }()
    
    private lazy var shadowView: UIControl = {
        let view = UIControl()
        view.translatesAutoresizingMaskIntoConstraints = false
        view.backgroundColor = Constants.shadowColor
        view.addTarget(self, action: #selector(self.close), for: .touchDown)
        return view
    }()
    
    convenience init(title: String, 
                     description: String, 
                     buttonText: String, 
                     icon: UIImage? = nil) {
        self.init()
        self.titleLabel.text = title
        self.descriptionLabel.text = description
        self.button.setTitle(buttonText, for: .normal)
        self.titleIcon.image = icon
        self.modalPresentationStyle = .overFullScreen
        self.modalTransitionStyle = .crossDissolve
    }

    override func viewDidLoad() {
        super.viewDidLoad()
        self.setupLayout()
    }
    
    private func setupLayout() {
        self.dialogView.addSubview(self.titleIcon)
        self.dialogView.addSubview(self.titleLabel)
        self.dialogView.addSubview(self.descriptionLabel)
        self.dialogView.addSubview(self.button)
        self.view.addSubview(self.shadowView)
        self.view.addSubview(self.dialogView)
        self.view.addSubview(self.separatorView)
        
        NSLayoutConstraint.activate([
            self.shadowView.leftAnchor.constraint(equalTo: self.view.leftAnchor),
            self.shadowView.rightAnchor.constraint(equalTo: self.view.rightAnchor),
            self.shadowView.topAnchor.constraint(equalTo: self.view.topAnchor),
            self.shadowView.bottomAnchor.constraint(equalTo: self.view.bottomAnchor),
            
            self.dialogView.leftAnchor.constraint(equalTo: self.view.leftAnchor),
            self.dialogView.rightAnchor.constraint(equalTo: self.view.rightAnchor),
            self.dialogView.bottomAnchor.constraint(equalTo: self.view.bottomAnchor),
            self.dialogView.heightAnchor.constraint(equalToConstant: Geometry.dialogViewHeight),
            
            self.separatorView.widthAnchor.constraint(equalToConstant: Geometry.separatorViewWidth),
            self.separatorView.heightAnchor.constraint(equalToConstant: Geometry.separatorViewHeight),
            self.separatorView.topAnchor.constraint(equalTo: self.dialogView.topAnchor, constant: Geometry.separatorViewTop),
            self.separatorView.centerXAnchor.constraint(equalTo: self.dialogView.centerXAnchor),
            
            self.titleIcon.leftAnchor.constraint(equalTo: self.dialogView.leftAnchor, constant: Geometry.commonMargin),
            self.titleIcon.topAnchor.constraint(equalTo: self.dialogView.topAnchor, constant: Geometry.titleIconTop),
            self.titleIcon.widthAnchor.constraint(lessThanOrEqualToConstant: Geometry.iconSize),
            self.titleIcon.heightAnchor.constraint(equalToConstant: Geometry.iconSize),
            
            self.titleLabel.leftAnchor.constraint(equalTo: self.titleIcon.rightAnchor, constant: Geometry.titleLeftMargin),
            self.titleLabel.centerYAnchor.constraint(equalTo: self.titleIcon.centerYAnchor),
            self.titleLabel.rightAnchor.constraint(equalTo: self.dialogView.rightAnchor, constant: -Geometry.commonMargin),
            
            self.descriptionLabel.topAnchor.constraint(equalTo: self.titleLabel.bottomAnchor, constant: Geometry.descriptionLabelMargin),
            self.descriptionLabel.leftAnchor.constraint(equalTo: self.dialogView.leftAnchor, constant: Geometry.commonMargin),
            self.descriptionLabel.rightAnchor.constraint(equalTo: self.dialogView.rightAnchor, constant: -Geometry.commonMargin),
            self.descriptionLabel.bottomAnchor.constraint(equalTo: self.button.topAnchor, constant: -Geometry.descriptionLabelMargin),
            
            self.button.leftAnchor.constraint(equalTo: self.dialogView.leftAnchor, constant: Geometry.commonMargin),
            self.button.rightAnchor.constraint(equalTo: self.dialogView.rightAnchor, constant: -Geometry.commonMargin),
            self.button.bottomAnchor.constraint(equalTo: self.dialogView.bottomAnchor, constant: -Geometry.buttonBottom),
            self.button.heightAnchor.constraint(equalToConstant: Geometry.buttonHeight)
        ])
    }
    
    @objc private func close() {
        self.dismiss(animated: true)
    } 
}