//
//  MenuTableViewCell.swift
//  PrivadoVPN
//
//  Created by Murad Shabanov on 22.06.2021.
//  Copyright © 2021 Privado LLC. All rights reserved.
//

import Foundation

final class MenuTableViewCell: View {
    
    // swiftlint:disable nesting
    private enum Constants {
        
        enum Color {
            
            static let highlitedBackground = NSColor(red: 3, green: 15, blue: 72)
            static let text = NSColor(red: 122, green: 134, blue: 190)
        }
        
        enum Font {
            
            enum Size {
                static let text: CGFloat = 13
            }
        }
    }
    // swiftlint:enable nesting
    
    override init() {
        super.init(frame: .zero)
        self.isHoverEnabled = true
    }
    
    private let textField = NSTextField()
    private let backgroungView = RoundedView()
    private var trackingArea: NSTrackingArea?

    override func addSubviews() {
        
        self.viewBackgroundColor = .clear
        
        self.textField.translatesAutoresizingMaskIntoConstraints = false
        self.textField.setContentCompressionResistancePriority(.defaultHigh, for: .horizontal)
        self.textField.isEditable = false
        self.textField.isSelectable = false
        self.textField.usesSingleLineMode = false
        self.textField.isBezeled = false
        self.textField.drawsBackground = false
        self.textField.focusRingType = .none
        self.textField.alignment = .left
        self.textField.font = NSFont(name: PrivadoConstants.Font.medium, size: Constants.Font.Size.text)
        self.textField.textColor = Constants.Color.text
        
        self.backgroungView.addSubview(self.textField)
        
        self.addSubview(self.backgroungView)
    }
    
    override func addConstraints() {
        NSLayoutConstraint.activate([
            self.backgroungView.topAnchor.constraint(equalTo: self.topAnchor),
            self.backgroungView.bottomAnchor.constraint(equalTo: self.bottomAnchor),
            self.backgroungView.leadingAnchor.constraint(equalTo: self.leadingAnchor),
            self.backgroungView.trailingAnchor.constraint(equalTo: self.trailingAnchor),
            self.textField.centerYAnchor.constraint(equalTo: self.backgroungView.centerYAnchor),
            self.textField.leadingAnchor.constraint(equalTo: self.backgroungView.leadingAnchor, constant: 20)
        ])
    }
    
    func updateText(text: String) {
        self.textField.stringValue = text
    }
    
    override func hitTest(_ point: NSPoint) -> NSView? { nil }
    
    override func mouseEntered(with theEvent: NSEvent) {
        self.backgroungView.viewBackgroundColor = Constants.Color.highlitedBackground
        self.textField.textColor = .white
    }
    
    override func mouseExited(with theEvent: NSEvent) {
        self.backgroungView.viewBackgroundColor = .clear
        self.textField.textColor = Constants.Color.text
    }
    

    override func updateTrackingAreas() {
        super.updateTrackingAreas()

        if let trackingArea = self.trackingArea {
            self.removeTrackingArea(trackingArea)
        }

        let options: NSTrackingArea.Options = [.mouseEnteredAndExited, .activeAlways]
        let trackingArea = NSTrackingArea(rect: self.bounds, options: options, owner: self, userInfo: nil)
        self.addTrackingArea(trackingArea)
    }
}