//
//  SubscriptionDetailsTableViewCell.swift
//  Earthquake Network
//
//  Created by Andrea Busi on 18/06/24.
//  Copyright © 2024 Earthquake Network. All rights reserved.
//

import UIKit


class SubscriptionDetailsTableViewCell: EQNBaseContainerTableViewCell {
    
    var onTapPrivacy: () -> Void = { }
    var onTapTerms: () -> Void = { }
    var onTapPurchase: () -> Void = { }
    var onChangePlan: (_ type: EQNInAppProducts.Plan) -> Void = { _ in }
    
    override var isHeaderVisible: Bool { false }
    
    // MARK: - UI
    
    lazy var planSegmentedControl: UISegmentedControl = {
        let control = UISegmentedControl(items: EQNInAppProducts.Plan.allCases.map(\.localizedTitle))
        control.translatesAutoresizingMaskIntoConstraints = false
        control.addTarget(self, action: #selector(onChangeSegmentedControl(_:)), for: .valueChanged)
        return control
    }()
    
    lazy var productTitleLabel: UILabel = {
        let label = UILabel()
        label.translatesAutoresizingMaskIntoConstraints = false
        label.textColor = AppTheme.shared.cardTextColor
        label.font = .preferredFont(forTextStyle: .title1)
        label.textAlignment = .center
        label.numberOfLines = 0
        return label
    }()

    lazy var productImageView: UIImageView = {
        let imageView = UIImageView(image: .init(named: "top_100k"))
        imageView.translatesAutoresizingMaskIntoConstraints = false
        imageView.contentMode = .scaleAspectFit
        imageView.heightAnchor.constraint(greaterThanOrEqualToConstant: 50.0).isActive = true
        return imageView
    }()

    lazy var subscriptionDetailsLabel: UILabel = {
        let label = UILabel()
        label.translatesAutoresizingMaskIntoConstraints = false
        label.textColor = AppTheme.shared.cardTextColor
        label.font = .preferredFont(forTextStyle: .body)
        label.textAlignment = .justified
        label.numberOfLines = 0
        return label
    }()

    lazy var openPrivacyButton: UIButton = {
        let button = UIButton(type: .system)
        button.translatesAutoresizingMaskIntoConstraints = false
        button.addTarget(self, action: #selector(onTapOpenPrivacyButton(_:)), for: .touchUpInside)
        button.contentHorizontalAlignment = .leading
        return button
    }()
    
    lazy var openTermsButton: UIButton = {
        let button = UIButton(type: .system)
        button.translatesAutoresizingMaskIntoConstraints = false
        button.addTarget(self, action: #selector(onTapOpenTermsButton(_:)), for: .touchUpInside)
        button.contentHorizontalAlignment = .leading
        return button
    }()

    lazy var purchaseRecapLabel: UILabel = {
        let label = UILabel()
        label.translatesAutoresizingMaskIntoConstraints = false
        label.textColor = AppTheme.shared.cardTextColor
        label.font = .preferredFont(forTextStyle: .headline)
        label.numberOfLines = 0
        label.textAlignment = .center
        return label
    }()
    
    lazy var productPriceLabel: UILabel = {
        let label = UILabel()
        label.translatesAutoresizingMaskIntoConstraints = false
        label.textColor = AppTheme.shared.cardTextColor
        label.font = .preferredFont(forTextStyle: .largeTitle)
        label.numberOfLines = 0
        label.textAlignment = .center
        return label
    }()
    
    lazy var purchaseButton: UIButton = {
        let button = UIButton(type: .system)
        button.translatesAutoresizingMaskIntoConstraints = false
        button.addTarget(self, action: #selector(onTapPurchaseButton(_:)), for: .touchUpInside)
        button.titleLabel?.font = .preferredFont(forTextStyle: .headline)
        button.heightAnchor.constraint(equalToConstant: 50.0).isActive = true
        button.backgroundColor = .systemGroupedBackground
        button.eqn_applyShadowAndRoundedCorners()
        return button
    }()

    // MARK: - Internal
    
    override func setupUI() {
        super.setupUI()
        
        containerView.addSubview(planSegmentedControl)
        containerView.addSubview(productTitleLabel)
        containerView.addSubview(productImageView)
        containerView.addSubview(subscriptionDetailsLabel)
        containerView.addSubview(openPrivacyButton)
        containerView.addSubview(openTermsButton)
        containerView.addSubview(purchaseRecapLabel)
        containerView.addSubview(productPriceLabel)
        containerView.addSubview(purchaseButton)
        
        let leading: NSLayoutXAxisAnchor = planSegmentedControl.leadingAnchor
        let trailing: NSLayoutXAxisAnchor = planSegmentedControl.trailingAnchor
        planSegmentedControl.topAnchor.constraint(equalTo: topView.bottomAnchor, constant: .cardVerticalSpacing).isActive = true
        planSegmentedControl.leadingAnchor.constraint(equalTo: containerView.leadingAnchor, constant: .cardPadding).isActive = true
        planSegmentedControl.trailingAnchor.constraint(equalTo: containerView.trailingAnchor, constant: .cardPadding.negative).isActive = true

        productTitleLabel.topAnchor.constraint(equalTo: planSegmentedControl.bottomAnchor, constant: .cardVerticalSpacing).isActive = true
        productTitleLabel.leadingAnchor.constraint(equalTo: leading, constant: .cardPadding).isActive = true
        productTitleLabel.trailingAnchor.constraint(equalTo: trailing, constant: .cardPadding.negative).isActive = true
        
        productImageView.topAnchor.constraint(equalTo: productTitleLabel.bottomAnchor, constant: .cardVerticalSpacing.x2).isActive = true
        productImageView.leadingAnchor.constraint(equalTo: leading).isActive = true
        productImageView.trailingAnchor.constraint(equalTo: trailing).isActive = true
        
        purchaseRecapLabel.topAnchor.constraint(equalTo: productImageView.bottomAnchor, constant: .cardVerticalSpacing.x2).isActive = true
        purchaseRecapLabel.leadingAnchor.constraint(equalTo: leading).isActive = true
        purchaseRecapLabel.trailingAnchor.constraint(equalTo: trailing).isActive = true
        productPriceLabel.topAnchor.constraint(equalTo: purchaseRecapLabel.bottomAnchor, constant: .cardVerticalSpacing).isActive = true
        productPriceLabel.leadingAnchor.constraint(equalTo: leading).isActive = true
        productPriceLabel.trailingAnchor.constraint(equalTo: trailing).isActive = true
        
        purchaseButton.topAnchor.constraint(equalTo: productPriceLabel.bottomAnchor, constant: .cardVerticalSpacing).isActive = true
        purchaseButton.leadingAnchor.constraint(equalTo: leading).isActive = true
        purchaseButton.trailingAnchor.constraint(equalTo: trailing).isActive = true
        
        subscriptionDetailsLabel.topAnchor.constraint(equalTo: purchaseButton.bottomAnchor, constant: .cardVerticalSpacing.x2).isActive = true
        subscriptionDetailsLabel.leadingAnchor.constraint(equalTo: leading).isActive = true
        subscriptionDetailsLabel.trailingAnchor.constraint(equalTo: trailing).isActive = true
        
        openPrivacyButton.topAnchor.constraint(equalTo: subscriptionDetailsLabel.bottomAnchor, constant: .cardVerticalSpacing.x2).isActive = true
        openPrivacyButton.leadingAnchor.constraint(equalTo: leading).isActive = true
        openPrivacyButton.trailingAnchor.constraint(equalTo: trailing).isActive = true
        
        openTermsButton.topAnchor.constraint(equalTo: openPrivacyButton.bottomAnchor, constant: .cardPadding).isActive = true
        openTermsButton.leadingAnchor.constraint(equalTo: leading).isActive = true
        openTermsButton.trailingAnchor.constraint(equalTo: trailing).isActive = true
        openTermsButton.bottomAnchor.constraint(equalTo: containerView.bottomAnchor, constant: .cardVerticalSpacing.x2.negative).isActive = true
    }
    
    override func updateUI() {
        super.updateUI()
        
        openPrivacyButton.setTitle(NSLocalizedString("network_pro_privacy_disclaimer", comment: ""), for: .normal)
        openTermsButton.setTitle(NSLocalizedString("network_pro_terms_conditions", comment: ""), for: .normal)
        purchaseButton.setTitle(NSLocalizedString("inapp_purchase", comment: ""), for: .normal)
    }
    
    // MARK: - Actions
    
    @objc private func onTapOpenPrivacyButton(_ sender: UIButton) {
        onTapPrivacy()
    }
    
    @objc private func onTapOpenTermsButton(_ sender: UIButton) {
        onTapTerms()
    }
    
    @objc private func onTapPurchaseButton(_ sender: UIButton) {
        onTapPurchase()
    }
    
    @objc private func onChangeSegmentedControl(_ sender: UISegmentedControl) {
        let type: EQNInAppProducts.Plan = .from(index: sender.selectedSegmentIndex)
        onChangePlan(type)
    }
}


extension EQNInAppProducts.Plan {
    var index: Int {
        switch self {
        case .monthly: 0
        case .yearly: 1
        case .perpetual: 2
        }
    }
    
    static func from(index: Int) -> Self {
        switch index {
        case 0: .monthly
        case 1: .yearly
        default: .perpetual
        }
    }
}