//
//  CommonViewCard.swift
//  Wallet
//
//  Created by Igor on 21.02.2021.
//  Copyright © 2021 AM. All rights reserved.
//

import UIKit
import SkeletonView

extension Common.Model.Menu {
    static func cardsTokensEmpty() -> Common.Model.Menu {
        .menu(image: Asset.commonToken.image.tinted(with: Asset.deepWater.color),
              title: L10n.Common.Card.Token.title)
    }
}

extension CommonMenuAction {
    
    static func cards(
        collection: [Common.Model.Menu]? = nil,
        icon: UIImage? = nil,
        tokens: [Network.Model.Token] = [],
        selectedMenu: Common.Model.Menu? = nil,
        selected: Network.Model.Token? = nil,
        empty: Common.Model.Menu? = .cardsTokensEmpty(),
        title: String? = L10n.Common.Card.Token.title,
        _ completion: ((Common.Model.Menu) -> Void)? = nil
    ) -> CommonMenuSelect {
        .select(
            icon: tokens.isEmpty ? nil : icon ?? Asset.commonMenuHorizontal.image,
            kind: .cards,
            title: title,
            empty: empty,
            collection: collection ?? tokens.map({ $0.toMenu() }),
            selected: selectedMenu ?? selected?.toMenu(),
            completion: completion
        )
    }
}

class CommonViewCard: CommonControlCustom, CommonMenuSender {
    
    enum Style: String {
        case `default`
        case data
    }

    @IBInspectable var styleName: String = Style.default.rawValue {
        didSet { update(animated: false) }
    }
    var style: Style {
        get { Style(rawValue: styleName) ?? .default }
        set { styleName = newValue.rawValue }
    }
    @IBInspectable var lzHeader: String? {
        didSet { update(animated: false) }
    }
    @IBInspectable var lzSubheader: String? {
        didSet { update(animated: false) }
    }
    @IBInspectable var lzData: String? {
        didSet { update(animated: false) }
    }
    @IBInspectable var icon: UIImage? {
        didSet { update(animated: false) }
    }
    @IBInspectable var badge: String? {
        didSet { update(animated: false) }
    }
    @IBInspectable var badgeColor: UIColor? {
        didSet { update(animated: false) }
    }
    
    var action: CommonMenuAction? {
        didSet { self.update(animated: false) }
    }

    var middleAction: (() -> Void)?
    var rightAction: (() -> Void)?

    @IBOutlet private weak var shadowContainer: CommonViewContainer!
    @IBOutlet private weak var indicator: UIActivityIndicatorView!
    @IBOutlet private weak var imgShadowView: UIImageView!
    @IBOutlet private weak var imgView: UIImageView!
    @IBOutlet private weak var imgViewOffset: NSLayoutConstraint!
    @IBOutlet private weak var imgViewWidth: NSLayoutConstraint!
    @IBOutlet private weak var headerLbl: UILabel!
    @IBOutlet private weak var badgeBtn: UIButton!
    @IBOutlet private weak var subheaderLbl: UILabel!
    @IBOutlet private weak var subheaderOffset: NSLayoutConstraint!
    @IBOutlet private weak var dataLbl: UILabel!
    @IBOutlet private weak var dataStackView: UIStackView!
    @IBOutlet private weak var dataOffset: NSLayoutConstraint!
    @IBOutlet private weak var actionBtn: UIButton!

    @IBOutlet private weak var bottomStackView: UIStackView!
    
    init(action: CommonMenuAction? = nil) {
        super.init(frame: .zero)
        self.action = action
        self.update(animated: false)
    }
    
    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
    }

    func update(animated: Bool) {
        
        self.superview?.clipsToBounds = false
        
        self.headerLbl.text = nil
        self.subheaderLbl.text = nil
        self.dataLbl.text = nil
//        dataStackView.isHidden = true
        self.dataLbl.alpha = 1
        self.dataStackView.arrangedSubviews.forEach { $0.removeFromSuperview() }

        self.imgView.image = nil

        let header = self.action?.menu?.title ?? lzHeader
        let subheader = self.action?.menu?.text ?? lzSubheader
        let data = self.action?.menu?.details ?? lzData
        let badge = self.action?.menu?.badge?.0 ?? self.badge
        let icon = self.action?.icon ?? self.icon

        if style == .default {
            self.headerLbl.attributedText = header?.localized.attributed(style: .medium, size: 14, color: Asset.textGranite.color)
            self.subheaderLbl.attributedText = subheader?.localized.attributed(style: .regular, size: 12, color: Asset.textGranite.color)
            self.subheaderOffset.constant = subheader?.isEmpty == true ? 0 : 2
            self.dataLbl.attributedText = data?.localized.attributed(style: .bold, size: 20, color: Asset.textCoal.color)
            self.dataOffset.constant = data?.isEmpty == true ? 0 : 4
        } else {
            self.headerLbl.attributedText = data?.localized.attributed(style: .bold, size: 20, color: Asset.textCoal.color)
            self.subheaderLbl.attributedText = header?.localized.attributed(style: .medium, size: 14, color: Asset.textGranite.color)
            self.subheaderOffset.constant = header?.isEmpty == true ? 0 : 2
            self.dataLbl.attributedText = subheader?.localized.attributed(style: .regular, size: 12, color: Asset.textGranite.color)
            self.dataOffset.constant = subheader?.isEmpty == true ? 0 : 4
        }
        if let badge = badge?.localized {
            self.badgeBtn.isHidden = false
            self.badgeBtn.setAttributedTitle(badge.attributed(style: .regular, size: 12, color: Asset.textSnow.color), for: .normal)
            if let color = action?.menu?.badge?.1 ?? badgeColor {
                self.badgeBtn.backgroundColor = color
            }
        } else {
            self.badgeBtn.isHidden = true
        }
        
        self.actionBtn.setImage(icon, for: .normal)

        self.imgShadowView.isHidden = true
        if let image = self.action?.menu?.image {
            self.imgView.image = image
            // uncomment for turn on cash tokens shadow
//            if (action?.menu?.uuid.contains(ApplicationEnvironment.shared().current.contract(.cash)) ?? false)
//                && (action?.menu?.uuid.lowercased().dropFirst(3).starts(with: "cash") ?? false) {
//                imgShadowView.isHidden = false
//            }
        } else if let urls = action?.menu?.imageURLs {
            self.downloadImage(urls: urls)
        } else {
            self.imgView.image = nil
        }

        self.imgViewOffset.constant = self.imgView.image == nil && (self.action?.menu?.imageURLs ?? []).isEmpty ? 0 : 12
        self.imgViewWidth.constant = self.imgView.image == nil && (self.action?.menu?.imageURLs ?? []).isEmpty ? 0 : 40
        
        DispatchQueue.main.async { [weak self] in
            guard let self else { return }
            animated ? UIView.animate(withDuration: Animation.fast) { self.layoutIfNeeded() } : self.layoutIfNeeded()
        }
    }
    
    private func downloadImage(urls: [URL]) {
        if urls.isEmpty {
            self.indicator.stopAnimating()
            self.imgView.image = nil
        } else {
            self.indicator.startAnimating()
            self.imgView.af.setImage(withURL: urls.first!,
                                placeholderImage: UIImage(),
                                completion: {
                
                guard $0.error.isExist else {
                    self.indicator.stopAnimating()
                    return
                }

                self.downloadImage(urls: Array(urls.dropFirst()))
            })
        }
    }
    
    @IBAction func onAction(_: AnyObject?) {
        guard self.isEnabled else { return }
        if let middleAction = self.middleAction {
            middleAction()
        } else {
            self.action?.perform(sender: self)
        }
    }

    func prepareForReuse() {
        self.imgView.af.cancelImageRequest()
        self.imgView.image = nil
        self.bottomStackView.arrangedSubviews.forEach { $0.removeFromSuperview() }
    }
    
    @IBAction func onRightAction(_: AnyObject?) {
        guard self.isEnabled else { return }
        if let rightAction = self.rightAction {
            rightAction()
        } else {
            self.action?.perform(sender: self)
        }
    }
}