//
//  SubscriptionProductTableViewCell.swift
//  Earthquake Network
//
//  Created by Busi Andrea on 29/07/2020.
//  Copyright © 2020 Earthquake Network. All rights reserved.
//

import UIKit
import StoreKit

class SubscriptionProductTableViewCell: EQNBaseContainerTableViewCell {
    
    override var isHeaderVisible: Bool { false }
    override var isRightArrowVisbile: Bool { true }
    
    // MARK: - UI
    
    private lazy var productImageView: UIImageView = {
        let imageView = UIImageView(frame: .zero)
        imageView.translatesAutoresizingMaskIntoConstraints = false
        imageView.contentMode = .scaleAspectFit
        return imageView
    }()

    private lazy var productTitleLabel: UILabel = {
        let label = UILabel()
        label.translatesAutoresizingMaskIntoConstraints = false
        label.textColor = AppTheme.shared.cardTextColor
        label.font = .preferredFont(forTextStyle: .headline)
        label.numberOfLines = 0
        return label
    }()
    
    private lazy var productInfoLabel: UILabel = {
        let label = UILabel()
        label.translatesAutoresizingMaskIntoConstraints = false
        label.textColor = AppTheme.Colors.red
        label.font = .preferredFont(forTextStyle: .body)
        label.numberOfLines = 0
        return label
    }()
        
    // MARK: - Internal
    
    override func setupUI() {
        super.setupUI()
        
        containerView.addSubview(productImageView)
        containerView.addSubview(productTitleLabel)
        containerView.addSubview(productInfoLabel)
        
        productImageView.widthAnchor.constraint(equalToConstant: 80.0).isActive = true
        productImageView.heightAnchor.constraint(equalToConstant: 40.0).isActive = true

        productTitleLabel.topAnchor.constraint(equalTo: topView.bottomAnchor, constant: .cardVerticalSpacing).isActive = true
        productTitleLabel.trailingAnchor.constraint(equalTo: containerView.trailingAnchor, constant: .cardPadding.negative).isActive = true
        productImageView.leadingAnchor.constraint(equalTo: containerView.leadingAnchor, constant: .cardPadding).isActive = true
        productImageView.trailingAnchor.constraint(equalTo: productTitleLabel.leadingAnchor, constant: .cardPadding.negative).isActive = true
        productImageView.centerYAnchor.constraint(equalTo: productTitleLabel.centerYAnchor).isActive = true
        
        productInfoLabel.topAnchor.constraint(equalTo: productTitleLabel.bottomAnchor, constant: .cardVerticalSpacing).isActive = true
        productInfoLabel.leadingAnchor.constraint(equalTo: productImageView.leadingAnchor).isActive = true
        productInfoLabel.trailingAnchor.constraint(equalTo: productTitleLabel.trailingAnchor).isActive = true        
        productInfoLabel.bottomAnchor.constraint(equalTo: containerView.bottomAnchor, constant: .cardVerticalSpacing.negative).isActive = true
    }
    
    // MARK: - Public
    
    func update(
        category: EQNInAppProducts.Category,
        availability: EQNPurchaseAvailability?
    ) {
        productImageView.image = category.image
        productTitleLabel.text = category.localizedTitle
        
        let infoKey = category == .top100k ? "inapp_available_100k" : "inapp_available_10k"
        let counter = availabilityCounter(for: category, availability: availability)
        productInfoLabel.text = String(format: NSLocalizedString(infoKey, comment: ""), counter)
    }
    
    private func availabilityCounter(
        for category: EQNInAppProducts.Category,
        availability: EQNPurchaseAvailability?
    ) -> Int {
        if category == .top100k {
            return availability?.top100kAvailable ?? 0
        }
        return availability?.top10kAvailable ?? 0
    }
}